Wisconsin Income Tax Rates & Brackets (Tax Year 2025 — Filed in 2026)
⚠️Informational only — not legal or tax advice.
Tax year covered: 2025 (returns filed in 2026)
Applies to: Income earned January 1 – December 31, 2025
Returns filed: January – April 2026
Last verified: February 18, 2026
Table of Contents
- Quick Reference
- Key Takeaways
- Quick Questions
- Quick Questions (Additional)
- Wisconsin Income Tax Rates and Brackets (2026)
- Statutory Authority
- Who Must File Wisconsin Income Tax
- What Income Is Taxable in Wisconsin
- Standard Deduction and Exemptions
- Wisconsin Income Tax Credits
- Filing Deadlines
- Filing Options for Wisconsin Income Tax
- Special Considerations: Remote Workers and Multi-State Taxation
- Common Tax Filing Situations for Wisconsin Remote Workers
- Tax Residency vs. Domicile
- Military Personnel
- Retirees
- Students
- Part-Year Residents
- Penalties and Interest
- Forms and Publications
- Where to Check for Updates
- Resources
- Tax Glossary
- Information Verification Log
- Update History
Quick Reference
Does Wisconsin have income tax? Yes
Tax structure: Progressive (4 brackets)
Tax rates: 3.50% to 7.65%
Standard deduction (Single): Up to $14,260 (sliding scale — phases out with income)
Standard deduction (Married Filing Jointly): Up to $26,510 (sliding scale — phases out with income)
Local income tax: No
Official source: https://www.revenue.wi.gov/Pages/Individuals/income.aspx
Key Takeaways
- Residents: Wisconsin residents pay state income tax on income from all sources, regardless of where it is earned.
- Non-residents: Non-residents pay Wisconsin income tax only on Wisconsin-source income (wages earned in Wisconsin, Wisconsin business income, Wisconsin rental income, etc.).
- Tax rates: Progressive system with four brackets: 3.50%, 4.40%, 5.30%, and 7.65%. Rates and brackets updated for Tax Year 2025 under 2025 Wisconsin Act 15.
- Local income tax: Wisconsin does not permit local income taxes. Only state-level income tax applies.
- Reciprocity: Wisconsin has reciprocal agreements with Illinois, Indiana, Kentucky, and Michigan. Residents of these states working in Wisconsin pay income tax only to their home state on qualifying wages.
- Primary forms: Form 1 (full-year residents); Form 1NPR (nonresidents and part-year residents)
Source: https://www.revenue.wi.gov/Pages/Individuals/income.aspx
Quick Questions About Wisconsin Income Tax
What is the Wisconsin income tax rate for 2025?
Wisconsin has a progressive income tax with four brackets ranging from 3.50% to 7.65%, depending on filing status and taxable income. For Tax Year 2025, the brackets were expanded under 2025 Wisconsin Act 15, most notably expanding the 4.40% bracket to apply to more income.
Does Wisconsin have state income tax?
Yes. Wisconsin imposes a state individual income tax on residents’ worldwide income and on non-residents’ Wisconsin-source income. The tax is administered by the Wisconsin Department of Revenue.
What are the income tax brackets in Wisconsin?
For Tax Year 2025, Wisconsin has four tax brackets. For single filers: 3.50% on the first $14,679; 4.40% from $14,680 to $50,479; 5.30% from $50,480 to $323,289; and 7.65% on income exceeding $323,290. See the complete bracket tables below.
Is Social Security taxed in Wisconsin?
No. Wisconsin does not tax Social Security benefits. This exemption applies fully regardless of income level.
Does Wisconsin tax retirement income?
For Tax Year 2025, Wisconsin taxpayers who are 67 or older by December 31, 2025 may subtract up to $24,000 of qualifying retirement income (up to $48,000 for married couples filing jointly where both spouses are 67+). Previously, only up to $5,000 was excludable under more restrictive conditions. Note: taxpayers claiming this new exclusion may not claim any Wisconsin tax credits in the same tax year.
Do I need to file a Wisconsin income tax return?
Full-year residents must file if gross income is $14,260 or more (single, under 65), $26,510 or more (married filing jointly, both under 65), or lower thresholds apply at age 65+. Nonresidents and part-year residents must file if gross income from Wisconsin sources is $2,000 or more.
Source: https://www.revenue.wi.gov/Pages/Individuals/income.aspx | https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf
Wisconsin Income Tax Rates and Brackets (2026)
The following tax rates and brackets apply to income earned in 2025, reported on returns filed in 2026. Brackets were updated by 2025 Wisconsin Act 15, effective for tax years beginning after December 31, 2024.
| Rate Snapshot | |
|---|---|
| Tax Attribute | Amount/Status |
| Lowest Tax Rate | 3.50% |
| Highest Tax Rate | 7.65% |
| Tax Structure | Progressive |
| Number of Brackets | 4 |
| State Income Tax | Yes |
| Local Income Tax | No |
| Standard Deduction (Single) | Up to $14,260 (sliding scale) |
| Standard Deduction (Married Filing Jointly) | Up to $26,510 (sliding scale) |
| Personal Exemption | $700 per person (taxpayer, spouse, each dependent) + $250 if age 65+ |
| Wisconsin Income Tax Brackets 2025 (Filed 2026) | |
|---|---|
| Single Filers / Head of Household / Estates and Trusts | |
| Taxable Income | Tax Rate |
| $0 – $14,679 | 3.50% |
| $14,680 – $50,479 | 4.40% |
| $50,480 – $323,289 | 5.30% |
| $323,290 and above | 7.65% |
| Wisconsin Income Tax Brackets 2025 (Filed 2026) | |
|---|---|
| Married Filing Jointly | |
| Taxable Income | Tax Rate |
| $0 – $19,579 | 3.50% |
| $19,580 – $67,299 | 4.40% |
| $67,300 – $431,059 | 5.30% |
| $431,060 and above | 7.65% |
| Wisconsin Income Tax Brackets 2025 (Filed 2026) | |
|---|---|
| Married Filing Separately | |
| Taxable Income | Tax Rate |
| $0 – $9,789 | 3.50% |
| $9,790 – $33,649 | 4.40% |
| $33,650 – $215,529 | 5.30% |
| $215,530 and above | 7.65% |
Note on Act 15 changes: The 2025 brackets reflect a significant expansion of the 4.40% bracket enacted by 2025 Wisconsin Act 15 (signed July 3, 2025). For single filers, the upper limit of the second bracket increased from $29,370 to $50,480. For married filing jointly, it increased from $39,150 to $67,300.
Source: https://www.revenue.wi.gov/Documents/2025-Tax-Update-Three-Slides.pdf | https://docs.legis.wisconsin.gov/2025/related/acts/15
Note on Wisconsin’s Standard Deduction (Sliding Scale)
Unlike a fixed standard deduction, Wisconsin uses a Sliding Scale Standard Deduction (SSSD) that decreases as Wisconsin Adjusted Gross Income (WAGI) increases, eventually reaching $0 for higher-income filers.
| Maximum Standard Deduction — Wisconsin (Tax Year 2025) | ||
|---|---|---|
| Filing Status | Maximum Deduction | Begins Phasing Out |
| Single | $14,260 | As WAGI exceeds threshold |
| Married Filing Jointly | $26,510 | As WAGI exceeds threshold |
| Married Filing Separately | $11,930 | As WAGI exceeds threshold |
| Head of Household | $18,220 | As WAGI exceeds threshold |
Important: The deduction phases down to $0 for higher-income taxpayers. Use the official Standard Deduction Table in the 2025 Form 1 instructions to determine the exact deduction applicable to your income level.
Source: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf (page 35)
Statutory Authority
State income tax in Wisconsin is authorized under the following legal framework:
Constitutional Authority:
- Wisconsin Constitution, Article VIII — provides the Legislature with authority to levy taxes
- Article VIII, Section 1: “The rule of taxation shall be uniform and taxes shall be levied upon such property as the legislature shall prescribe.”
Statutory Authority:
- Wisconsin Statutes, Chapter 71 — Income and Franchise Taxes
- Wis. Stat. § 71.02 — Individual income tax imposed
- Wis. Stat. § 71.06 — Tax rates and brackets
- Wis. Stat. § 71.05 — Wisconsin adjusted gross income; modifications
- Wis. Stat. § 71.03 — Filing requirements
- Wis. Stat. § 71.04 — Sourcing rules for nonresidents
- Link: https://docs.legis.wisconsin.gov/statutes/statutes/71
Key 2025 Legislation:
- 2025 Wisconsin Act 15 (signed July 3, 2025) — Expanded the 4.40% bracket, created a new retirement income subtraction for taxpayers 67+, increased adoption expenses deduction, and made other individual income tax changes
- Link: https://docs.legis.wisconsin.gov/2025/related/acts/15
Administrative Regulations:
- Wisconsin Administrative Code, Chapter Tax 2 — Individual income tax
- Link: https://docs.legis.wisconsin.gov/code/admin_code/tax/2
Legislative History:
- Wisconsin income tax first enacted: 1911 (one of the first states to adopt income tax)
- Current four-bracket rate structure: restructured over several legislative sessions, most recently modified by 2025 Wisconsin Act 15 effective tax year 2025
This page compiles information directly from these statutory and regulatory authorities as implemented by the Wisconsin Department of Revenue.
Source: https://docs.legis.wisconsin.gov/statutes/statutes/71 | https://docs.legis.wisconsin.gov/code/admin_code/tax/2
Who Must File Wisconsin Income Tax
Full-Year Residents
Wisconsin law requires full-year residents to file a state income tax return if gross income meets or exceeds the following thresholds for Tax Year 2025:
| Wisconsin Filing Thresholds — Tax Year 2025 (Filed 2026) | ||
|---|---|---|
| Filing Status | Age as of Dec. 31, 2025 | Gross Income Threshold |
| Single | Under 65 | $14,260 or more |
| Single | 65 or older | $14,510 or more |
| Married Filing Jointly | Both under 65 | $26,510 or more |
| Married Filing Jointly | One spouse 65+ | $26,760 or more |
| Married Filing Jointly | Both 65 or older | $27,010 or more |
| Married Filing Separately | Under 65 | $12,630 or more |
| Married Filing Separately | 65 or older | $12,880 or more (each spouse) |
| Head of Household | Under 65 | $18,220 or more |
| Head of Household | 65 or older | $18,470 or more |
Gross income means all income (before deducting expenses) reportable to Wisconsin. It does not include Social Security benefits or U.S. government interest.
Part-Year Residents
Part-year residents file Wisconsin Form 1NPR if they were domiciled in Wisconsin for part of the year. They must report all income received while a Wisconsin resident (from all sources) and only Wisconsin-source income received while a nonresident.
Nonresidents
Nonresidents must file Wisconsin Form 1NPR if their gross income from Wisconsin sources is $2,000 or more for the year. Wisconsin-source income includes wages earned while physically working in Wisconsin, Wisconsin business income, rental income from Wisconsin property, and gains from sale of Wisconsin real estate.
Exception — Reciprocity States: Residents of Illinois, Indiana, Kentucky, or Michigan whose only Wisconsin-source income is wages subject to the reciprocity agreement are not required to file a Wisconsin return, provided no Wisconsin income tax was withheld. If Wisconsin tax was withheld, they must file Form 1NPR to claim a refund.
Who Should File Even Without a Requirement
Taxpayers are encouraged to file even if not required if they had Wisconsin income tax withheld from wages, paid estimated taxes, or are eligible for refundable credits such as the Earned Income Credit or Veterans and Surviving Spouses Property Tax Credit.
Source: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf | https://www.revenue.wi.gov/Pages/FAQS/pcs-indreq.aspx
What Income Is Taxable in Wisconsin
Fully Taxable Income
- Wages, salaries, and tips
- Self-employment and business income
- Capital gains (net long-term capital gains are eligible for a 30% exclusion — see below)
- Investment income (interest, dividends)
- Rental income from Wisconsin and non-Wisconsin property (for residents)
- Retirement account distributions (401(k), traditional IRA, pension — subject to age-based exclusion for those 67+)
- Gambling winnings (including lottery winnings)
- Alimony received under pre-2019 divorce agreements
- Unemployment compensation
Capital Gains — Partial Exclusion
Wisconsin allows a 30% exclusion of net long-term capital gains from taxable income. Gain from the sale of farm assets held more than one year qualifies for a 60% exclusion. The exclusion is claimed on Schedule SB.
Source: https://docs.legis.wisconsin.gov/statutes/statutes/71/05 | https://www.revenue.wi.gov/DOR%20Publications/1102-2capitalgain-2.pdf
Social Security Benefits
Wisconsin does not tax Social Security benefits. This full exemption applies regardless of income level and applies to all types of Social Security benefits (retirement, disability, survivors).
Source: https://www.revenue.wi.gov/DOR%20Publications/pb106.pdf
Military Retirement Pay
Wisconsin does not tax military retirement pay for current Tax Year 2025. Wisconsin law provides a complete exemption for military retirement pay received by veterans domiciled in Wisconsin.
Source: https://www.revenue.wi.gov/Pages/Individuals/military.aspx
Pension Income
Public pensions (state and local government): Generally taxable in Wisconsin. Certain pension income from the Wisconsin Retirement System (WRS) and other public pensions is taxable, subject to the age 67+ retirement income exclusion.
Federal government pensions: Taxable by Wisconsin (no special exemption, unlike some states).
Private pensions: Fully taxable, subject to the age 67+ retirement income exclusion.
Railroad Retirement (Tier 1): The Railroad Retirement Acts prohibit state taxation of Tier 1 benefits. Wisconsin does not tax Tier 1 railroad retirement benefits.
Source: https://www.revenue.wi.gov/Pages/Individuals/retirement.aspx | https://www.revenue.wi.gov/DOR%20Publications/pb106.pdf
Retirement Income Exclusion (New for 2025 — Act 15)
For Tax Year 2025, taxpayers who are age 67 or older as of December 31, 2025 may subtract up to:
- $24,000 of qualifying retirement income (single filers)
- $48,000 (married filing jointly, if both spouses are 67+)
Qualifying retirement income includes distributions from qualified retirement plans (401(k), 403(b), pension plans) and IRAs under IRC § 408. It does not include income already excluded under other provisions (such as military retirement pay).
Critical restriction: Taxpayers who claim this exclusion may not claim any Wisconsin tax credits in the same tax year — including the Earned Income Credit, Homestead Credit, and all other income tax credits. The credits cannot be carried forward if foregone due to this election.
Part-year residents must prorate the exclusion by the ratio of Wisconsin AGI to federal AGI. Nonresidents may not claim this exclusion.
Source: https://www.revenue.wi.gov/Documents/2025-Tax-Update-Three-Slides.pdf | https://docs.legis.wisconsin.gov/2025/related/acts/15
Income Not Taxable in Wisconsin
- Social Security benefits (fully exempt)
- U.S. government interest (e.g., interest on U.S. Treasury bonds)
- Military retirement pay
- Tier 1 Railroad Retirement benefits
- Worker’s compensation benefits
- Most disability income (subject to certain conditions)
- Child support payments received
- Gifts and inheritances
Source: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf
Standard Deduction and Exemptions
Wisconsin’s Sliding Scale Standard Deduction
Wisconsin uses a Sliding Scale Standard Deduction (SSSD) rather than a fixed deduction. The deduction is at its maximum when Wisconsin Adjusted Gross Income (WAGI) is below a threshold and decreases to zero as income increases.
| Maximum Standard Deduction for Tax Year 2025 | |
|---|---|
| Filing Status | Maximum Standard Deduction |
| Single | $14,260 |
| Married Filing Jointly | $26,510 |
| Married Filing Separately | $11,930 |
| Head of Household | $18,220 |
Taxpayers with higher incomes receive a reduced deduction. The exact deduction is determined using the Standard Deduction Table on page 35 of the 2025 Form 1 instructions.
Important: Wisconsin does not allow federal-style itemized deductions on the state return. Instead, taxpayers may claim an itemized deductions credit equal to 5% of qualifying deductions (such as mortgage interest, charitable contributions, and property taxes) that exceed the Wisconsin standard deduction.
Source: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf (page 35)
| Personal Exemptions | |
|---|---|
| Wisconsin allows personal exemptions (unlike many states that have eliminated them): | |
| Exemption Type | Amount |
| Taxpayer | $700 |
| Spouse (if filing jointly) | $700 |
| Each qualifying dependent | $700 |
| Additional — taxpayer age 65+ | $250 |
| Additional — spouse age 65+ (if filing jointly) | $250 |
Note: If you can be claimed as a dependent on someone else’s return, you do not qualify for your own exemption.
Nonresidents and part-year residents must prorate both the standard deduction and exemptions by the ratio of Wisconsin income to federal adjusted gross income.
Source: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf
Key Subtractions from Income (Schedule SB)
Beyond the standard deduction, Wisconsin allows certain subtractions from Wisconsin Adjusted Gross Income:
College Savings Account (Edvest/Tomorrow’s Scholar):
Up to $5,130 per beneficiary ($2,560 if married filing separately or head of household married) for contributions to a Wisconsin state-sponsored 529 account.
Tuition and Fees:
Up to $7,649 per qualifying student for tuition paid to eligible Wisconsin schools or to Minnesota schools under the Wisconsin-Minnesota reciprocity agreement. Subject to phase-out ranges: $69,480–$83,370 (single/HOH); $111,160–$138,960 (married filing jointly).
Adoption Expenses (increased for 2025):
Up to $15,000 per child for qualified adoption expenses (increased from $5,000 under 2025 Wisconsin Act 15).
Medical Care Insurance Premiums:
Self-employed individuals may subtract health insurance premiums not otherwise deducted.
Long-Term Care Insurance:
Amounts paid for qualifying long-term care insurance policies.
Source: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf | https://www.revenue.wi.gov/Documents/2025-Tax-Update-Three-Slides.pdf
Wisconsin Income Tax Credits
Wisconsin offers the following major tax credits. Credits are a direct dollar-for-dollar reduction in tax owed.
1. Earned Income Credit (EIC)
Wisconsin’s Earned Income Credit is a refundable credit for lower-income working individuals and families. For Tax Year 2025, Wisconsin’s EIC equals 4% of the federal EIC for taxpayers with no qualifying children, 11% for those with one qualifying child, 14% for two qualifying children, and 34% for three or more qualifying children.
Eligibility: Must have qualifying earned income and meet federal EIC requirements. Wisconsin EIC is only available to full-year Wisconsin residents and certain part-year residents. Nonresidents may not claim the Wisconsin EIC.
Source: https://www.revenue.wi.gov/Pages/Individuals/eic.aspx | https://www.revenue.wi.gov/DOR%20Publications/1114eic.pdf
2. Homestead Credit
The Homestead Credit is a refundable credit providing property tax relief to low-income Wisconsin homeowners and renters. The credit is based on property taxes paid (or rent constituting property taxes) relative to household income.
Eligibility: Must be a full-year Wisconsin resident; household income must not exceed the maximum limit; must be a homeowner or renter who paid rent/property taxes; age 62+ or disabled applicants have priority access.
Source: https://www.revenue.wi.gov/Pages/Individuals/homestead.aspx | https://www.revenue.wi.gov/DOR%20Publications/1116hc.pdf
3. School Property Tax Credit
A nonrefundable credit equal to 12% of the first $2,500 of property taxes paid on a Wisconsin principal residence, for a maximum credit of $300. Renters may also qualify based on 20% of rent paid constituting property taxes.
Eligibility: Must have paid property taxes on a Wisconsin home or paid rent for a Wisconsin residence during 2025.
Source: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf
4. Itemized Deductions Credit
For taxpayers with qualifying itemized deductions (mortgage interest, charitable contributions, unreimbursed medical expenses above the federal threshold, casualty losses from presidentially declared disasters) exceeding the Wisconsin standard deduction, a credit equal to 5% of the excess is allowed.
Eligibility: Only worthwhile if qualifying deductions exceed the standard deduction. This is a nonrefundable credit.
Source: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf
5. Additional Child and Dependent Care Tax Credit
Wisconsin allows an additional child and dependent care credit equal to 100% of the federal child and dependent care credit (recomputed using Wisconsin’s higher expense limitations).
Eligibility: Must have qualifying child or dependent care expenses and claim the federal credit.
Source: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf
6. Married Couple Credit
A nonrefundable credit for married couples filing jointly when both spouses have Wisconsin earned income. The credit helps reduce the “marriage penalty” that can arise in a progressive tax system. Calculated on Schedule MC.
Eligibility: Both spouses must have Wisconsin earned income; subject to income limitations.
Source: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf
7. Veterans and Surviving Spouses Property Tax Credit
A refundable credit providing property tax relief for eligible veterans and their surviving spouses. The credit equals the amount of property taxes paid on the claimant’s Wisconsin principal residence.
Eligibility: Must be a veteran with a service-connected disability rating of 100% from the VA, or a surviving unremarried spouse of such a veteran. Property taxes must be paid (received by the municipality) by December 31, 2025.
Source: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf
8. Farmland Preservation Credit
A refundable credit for farmers maintaining qualifying farmland under a farmland preservation agreement or zoning ordinance. Calculated on Schedule FC or FC-A.
Source: https://www.revenue.wi.gov/DOR%20Publications/1115fpc.pdf
9. Credit for Tax Paid to Another State
A nonrefundable credit for Wisconsin residents who pay income tax on the same income to another state. Prevents double taxation for residents who earn income in states with which Wisconsin has no reciprocity agreement.
Forms required: Wisconsin Schedule OS (Credit for Net Tax Paid to Another State)
Source: https://www.revenue.wi.gov/DOR%20Publications/pb125.pdf
Note on the retirement income exclusion interaction: Taxpayers who claim the new age 67+ retirement income subtraction under 2025 Act 15 may not claim any Wisconsin income tax credits in that same tax year, including all credits listed above.
Full list of credits: https://www.revenue.wi.gov/Pages/HTML/formpub.aspx (Schedule CR instructions)
Filing Deadlines
Regular Deadline
April 15, 2026 for Tax Year 2025 returns (both Form 1 and Form 1NPR)
Extension Deadline
October 15, 2026 — Wisconsin follows federal extension provisions. No separate Wisconsin extension application is required. When filing Form 1 under an extension, include either a copy of your federal extension application (Form 4868) or a statement indicating which federal extension provision you are applying.
Important: An extension is only an extension of time to file — not to pay. Interest accrues on any unpaid tax at 1.5% per month starting April 15, 2026, even during an extension period. To avoid this interest charge, pay the estimated tax owed by April 15, 2026, using Wisconsin Form 1-ES.
Special Deadline — Farmers and Fishers
Farmers and fishers (individuals earning at least two-thirds of gross income from farming or fishing) who did not make estimated tax payments must file their return and pay any tax due by March 2, 2026, to avoid underpayment interest.
| Estimated Tax Payments | |
|---|---|
| Estimated tax payments are required for 2025 if you expect to owe at least $500 in Wisconsin tax after withholding and credits. The safe harbor is the lesser of 90% of your 2025 tax or 100% of your 2024 tax. | |
| Quarter | Due Date |
| Q1 2025 | April 15, 2025 |
| Q2 2025 | June 16, 2025 |
| Q3 2025 | September 15, 2025 |
| Q4 2025 | January 15, 2026 |
For estimated tax payments for 2026, use Wisconsin Form 1-ES.
Source: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf | https://www.revenue.wi.gov/Pages/FAQS/pcs-extensn.aspx
Filing Options for Wisconsin Income Tax
Online Filing (E-File)
WisTax — Official Free E-File Portal:
https://www.revenue.wi.gov/Pages/WisTax/home.aspx
WisTax is the Wisconsin Department of Revenue’s free e-filing application through My Tax Account. Available to full-year Wisconsin residents who meet certain requirements (valid Wisconsin driver’s license or ID, prior filing history within five years, limited credits and schedules).
Approved Tax Software:
https://www.revenue.wi.gov/Pages/OnlineServices/webased.aspx
Commercial software (TurboTax, H&R Block, TaxAct, etc.) supporting Wisconsin returns can be used to file electronically. Some vendors offer free filing for qualifying income levels.
My Tax Account (MTA):
https://tap.revenue.wi.gov
MTA allows taxpayers to manage their Wisconsin tax account, make payments, view payment history, check refund status, and receive electronic notices.
Paper Filing
Primary Forms:
- Form 1 (full-year residents): https://www.revenue.wi.gov/TaxForms2025/2025-Form1f.pdf
- Form 1NPR (nonresidents and part-year residents): https://www.revenue.wi.gov/TaxForms2025/2025-Form1NPRf.pdf
- Form 1 Instructions: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf
Free Tax Assistance
VITA (Volunteer Income Tax Assistance):
For low-to-moderate income individuals, persons with disabilities, and elderly individuals.
Find locations: https://www.revenue.wi.gov/Pages/VITA/home.aspx
Phone: 1-800-906-9887 or call 211
AARP Tax-Aide (TCE — Tax Counseling for the Elderly):
Phone: 1-888-227-7669
Source: https://www.revenue.wi.gov/Pages/Individuals/income.aspx
Special Considerations: Remote Workers and Multi-State Taxation
Living in Wisconsin, Working for an Out-of-State Employer
As a Wisconsin resident, you owe Wisconsin income tax on all income, regardless of where your employer is located.
What this means:
- Your employer’s location (Illinois, California, New York, etc.) does NOT determine your Wisconsin tax obligation.
- Income earned remotely for employers headquartered outside Wisconsin is fully taxable in Wisconsin.
- Your employer may not withhold Wisconsin income tax automatically — you may need to request Wisconsin withholding or make estimated tax payments.
Example: A Wisconsin resident working remotely from their Milwaukee home for a Chicago-based company owes Wisconsin income tax on all wages, not Illinois tax (unless they physically work in Illinois on certain days).
Source: https://www.revenue.wi.gov/Pages/FAQS/pcs-work.aspx
Working in Wisconsin, Living in Another State
Nonresidents who physically perform work in Wisconsin owe Wisconsin income tax on Wisconsin-source income.
Physical Presence Rule: Wisconsin taxes nonresidents based on where work is physically performed. If a Minnesota resident commutes to work in Wisconsin, their Wisconsin wages are subject to Wisconsin income tax (unless covered by a reciprocity agreement).
Exception — Reciprocity: Residents of Illinois, Indiana, Kentucky, or Michigan working in Wisconsin pay income tax only to their home state on wages. See the Reciprocal Agreements section below.
Source: https://www.revenue.wi.gov/Pages/FAQS/pcs-work.aspx | https://www.revenue.wi.gov/DOR%20Publications/pb122.pdf
⚠️ Interstate Tax Risk Indicator
Remote workers with Wisconsin connections commonly encounter complications with the following states:
States requiring careful planning when working across state lines:
- Illinois — Reciprocity applies for wages; self-employment income is not covered by reciprocity
- Minnesota — No reciprocity; Wisconsin residents working in Minnesota must file Minnesota returns and claim a credit in Wisconsin
- New York — Applies a “convenience of the employer” rule that can tax Wisconsin residents working remotely for New York employers
- California — Aggressive residency rules for extended stays; may claim taxing rights over former California residents
- Ohio, Pennsylvania — Complex local income tax systems that may apply to nonresidents working in those states
Source: https://www.revenue.wi.gov/Pages/FAQS/pcs-work.aspx | https://www.revenue.wi.gov/DOR%20Publications/pb125.pdf
“Convenience of the Employer” Rule
Wisconsin does NOT apply a “convenience of the employer” rule. Nonresidents are taxed by Wisconsin only on income from work physically performed within Wisconsin’s borders.
However, be aware: Other states (notably New York and certain others) do apply this rule, which means if you are a Wisconsin resident working remotely for a New York employer, New York may assert the right to tax your income as if it were earned in New York — even though you physically work in Wisconsin. In such cases, you may need to file a New York nonresident return and claim a Wisconsin credit for taxes paid to New York.
Source: https://www.revenue.wi.gov/Pages/FAQS/pcs-work.aspx
Reciprocal Agreements
Wisconsin has reciprocal agreements with four states:
| State | Type of Income Covered |
|---|---|
| Illinois | Wages, salaries, commissions, and fees earned as an employee |
| Indiana | Wages, salaries, commissions, and fees earned as an employee |
| Kentucky | Wages, salaries, and commissions earned as an employee |
| Michigan | Wages, salaries, commissions, and fees earned as an employee |
What reciprocity means:
- Wisconsin residents working in one of these four states pay Wisconsin income tax on those wages — not the other state’s income tax.
- Residents of these four states working in Wisconsin pay their home state’s income tax — not Wisconsin income tax.
- Reciprocity applies only to income earned as an employee (wages, salaries, commissions, fees). It does NOT apply to self-employment income, rental income, business income, capital gains, or lottery winnings.
Special note on Indiana: Reciprocity does not apply if the Wisconsin resident is considered an Indiana resident for Indiana tax purposes. Individuals domiciled in Wisconsin employed in Indiana should contact the Indiana Department of Revenue if there is any question about Indiana residency: phone (317) 232-2240 or in.gov/dor.
Special note on Kentucky: Reciprocity does not apply if the Wisconsin resident lives in Kentucky for more than 183 days during the taxable year.
To claim reciprocity exemption from Wisconsin withholding:
Nonresident employees working in Wisconsin submit Wisconsin Form W-220 to their Wisconsin employer to claim exemption from Wisconsin income tax withholding.
Form W-220: https://www.revenue.wi.gov/TaxForms2017through2019/w-220.pdf
Source: https://www.revenue.wi.gov/DOR%20Publications/pb121.pdf | https://www.revenue.wi.gov/Pages/FAQS/pcs-work.aspx
Multi-State Tax Filing
When earning income in multiple states (outside of reciprocity states):
Step 1: File Wisconsin Form 1 as a full-year resident, reporting all income from all sources.
Step 2: File nonresident returns in each other state where you earned income (if required by that state’s rules).
Step 3: Claim a Credit for Net Tax Paid to Another State on your Wisconsin return using Wisconsin Schedule OS to prevent double taxation.
Limitations on the credit:
- The credit cannot exceed your Wisconsin tax liability.
- The credit is limited to the lesser of the Wisconsin tax on that income or the tax actually paid to the other state.
- No credit is available for income covered by a reciprocity agreement (since it is only taxed once).
Forms required:
- Wisconsin Form 1 — main resident return
- Wisconsin Schedule OS — Credit for Net Tax Paid to Another State
- The other state’s nonresident return (copy required as attachment)
Source: https://www.revenue.wi.gov/DOR%20Publications/pb125.pdf
Common Tax Filing Situations for Wisconsin Remote Workers
Situation: “My employer is in Illinois, so I don’t owe Wisconsin tax.”
Wisconsin law: Wisconsin residents owe Wisconsin income tax on all income regardless of employer location. Employer location does not determine tax obligation. If you perform the work from Wisconsin, the income is taxable in Wisconsin.
Source: https://www.revenue.wi.gov/Pages/FAQS/pcs-work.aspx
Situation: “I occasionally travel to our company’s Illinois office. Do I owe Illinois tax?”
Tax law: Wisconsin has a reciprocity agreement with Illinois for employee wages. Wisconsin residents working for Illinois employers and occasionally working in Illinois are covered by the reciprocity agreement — Wisconsin taxes the wages, and Illinois does not. However, if you earn non-wage income in Illinois (self-employment, for instance), reciprocity does not apply.
Source: https://www.revenue.wi.gov/DOR%20Publications/pb121.pdf
Situation: “I work remotely for a New York company from my Wisconsin home.”
Multi-state risk: New York applies a “convenience of the employer” rule. New York may assert the right to tax your wages even though you physically work in Wisconsin, if it considers your remote work arrangement to be for your personal convenience rather than a business necessity. Wisconsin residents in this situation should consult a tax professional and may need to file a New York nonresident return, then claim a Wisconsin credit for New York tax paid.
Source: https://www.revenue.wi.gov/DOR%20Publications/pb125.pdf | New York Department of Taxation and Finance guidance
Situation: “I’m a part-year resident, so I owe half the Wisconsin tax.”
Wisconsin law: Part-year residents owe Wisconsin tax only on income earned during the period of Wisconsin residency (all-source income) plus Wisconsin-source income earned while a nonresident — not simply half the annual tax. The calculation is based on actual residency dates, not a pro-rata percentage.
Source: https://www.revenue.wi.gov/DOR%20Publications/pb122.pdf
Tax Residency vs. Domicile
Domicile Defined
Domicile is your true, fixed, and permanent home — the place to which, whenever absent, you intend to return and consider your permanent legal home.
Key characteristics:
- You can have only ONE domicile at a time.
- Domicile continues until you abandon it and establish a new domicile elsewhere with intent to remain permanently.
- Temporary absences (vacations, work trips, military deployment) do not change domicile.
Three conditions required to change domicile:
- You intend to abandon your old domicile and take actions consistent with that intent
- You intend to acquire a new domicile and take actions consistent with that intent
- You are physically present in the new domicile
Factors establishing Wisconsin domicile:
- Registering to vote in Wisconsin
- Obtaining a Wisconsin driver’s license
- Filing for Wisconsin homestead exemption
- Where your family resides
- Where your bank accounts and professional licenses are maintained
- Stated intent in legal documents (will, trust)
Source: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf | https://www.revenue.wi.gov/DOR%20Publications/pb122.pdf
Residency Defined
Residency for Wisconsin income tax purposes is based on domicile. Unlike some states (such as New York), Wisconsin does not impose a separate “statutory residency” test based solely on day counts.
A Wisconsin full-year resident is someone who is domiciled in Wisconsin for the entire tax year.
A part-year resident is someone who changes their domicile into or out of Wisconsin during the tax year.
A nonresident is someone who maintains domicile in another state or country throughout the year, even if physically present in Wisconsin for extended periods.
Note for high earners and interstate workers: Unlike New York, California, and some other states, Wisconsin does not separately apply a “183-day statutory resident” rule to create additional resident taxpayers. Wisconsin residency is determined by domicile intent, not by a simple day-count threshold.
Source: https://www.revenue.wi.gov/DOR%20Publications/pb122.pdf | https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf
Common Conflict Scenarios
Scenario 1: Wisconsin resident working long-term in another state
A Wisconsin-domiciled employee is assigned to work in Illinois for 10 months, renting an apartment there. Their domicile remains Wisconsin (no intent to permanently relocate). They file as a Wisconsin full-year resident, reporting all income. They also file an Illinois nonresident return for Illinois-source wages (unless reciprocity applies — which it does for employee wages from Illinois). They claim a Wisconsin credit for any Illinois tax paid.
Scenario 2: Moving into Wisconsin mid-year
Someone moves from Minnesota to Wisconsin on July 1, 2025, establishes a Wisconsin domicile (new home, Wisconsin ID, voter registration). They file Wisconsin Form 1NPR as a part-year resident, reporting income from July 1–December 31 from all sources, plus Wisconsin-source income earned January 1–June 30 while a Minnesota resident.
Scenario 3: Snowbird spending winters in Florida
A Wisconsin resident who spends November–April in Florida maintains their Wisconsin domicile if they continue to consider Wisconsin home (Wisconsin voter registration, driver’s license, family in Wisconsin). Simply spending winters in a warmer state does not change domicile.
Source: https://www.revenue.wi.gov/DOR%20Publications/pb122.pdf
| Audit Documentation for Residency Disputes | |
|---|---|
| If Wisconsin challenges your residency claim, the following documentation is commonly relevant: | |
| Document Type | What It Shows |
| Driver's License | State of claimed legal residence |
| Voter Registration | Where you exercise voting rights |
| Vehicle Registration | Where vehicles are domiciled |
| Property Ownership Records | Real estate holdings by state |
| Homestead Exemption Filing | Primary residence claim |
| Utility Bills | Physical occupancy patterns |
| Credit Card / Bank Statements | Geographic spending patterns |
| Day-Count Logs | Physical location by date |
| Employment Contract | Work location requirements |
| Remote Work Agreement | Authorization to work from a specific location |
| Will / Estate Documents | Stated domicile for estate purposes |
| Tax Returns | Prior year residency claims |
Burden of proof: In residency disputes, the burden typically falls on the taxpayer to prove non-residency or domicile elsewhere.
Source: https://www.revenue.wi.gov/Pages/FAQS/ise-audit.aspx
Military Personnel
Servicemembers Civil Relief Act (SCRA)
Active duty military members stationed in Wisconsin due to military orders do not become Wisconsin residents solely because of military orders. They pay income tax to their state of legal residence (domicile), not Wisconsin.
What this means:
- A soldier from Texas stationed at Fort McCoy, Wisconsin, owes Texas tax (or no tax, since Texas has no income tax) — not Wisconsin tax — on their military pay.
- Non-military income earned in Wisconsin (civilian part-time job, rental income from Wisconsin property) remains taxable by Wisconsin.
Source: https://www.revenue.wi.gov/Pages/Individuals/military.aspx | https://www.revenue.wi.gov/DOR%20Publications/pb128.pdf
Military Spouses Residency Relief Act (MSRRA)
Spouses of active duty military members may maintain their home state residency and are not taxed by Wisconsin on income earned in Wisconsin if:
- The spouse is in Wisconsin solely to be with the servicemember
- The servicemember is in Wisconsin under military orders
- The spouse maintains domicile (legal residence) in another state
This exemption allows a military spouse to avoid Wisconsin income tax on wages earned from a Wisconsin employer, provided the above conditions are met. The spouse should claim the exemption with their employer using the appropriate withholding certificate.
Source: https://www.revenue.wi.gov/Pages/Individuals/military.aspx
Military Retirement Pay
Wisconsin does not tax military retirement pay. Military retirees domiciled in Wisconsin receive a full exemption for their military retired pay.
Source: https://www.revenue.wi.gov/Pages/Individuals/military.aspx
What Military Members DO Owe Wisconsin Tax On
Military members who ARE Wisconsin residents (domiciled in Wisconsin) owe Wisconsin income tax on:
- Non-military income (civilian part-time employment, side business)
- Investment income (interest, dividends, capital gains)
- Rental income from Wisconsin property
- Business income from Wisconsin operations
For complete guidance: Publication 128, Wisconsin Tax Information for Military Personnel and Veterans
https://www.revenue.wi.gov/DOR%20Publications/pb128.pdf
Retirees
Social Security Benefits
Wisconsin does not tax Social Security benefits of any kind. This full exemption applies regardless of the taxpayer’s income level. Unlike the federal government (which taxes a portion of benefits for higher-income taxpayers) and several states, Wisconsin provides a complete exclusion.
Source: https://www.revenue.wi.gov/DOR%20Publications/pb106.pdf
Pension Income
Private pensions: Fully taxable as ordinary income (before applying any applicable exclusion).
Public pensions (state/local government): Taxable in Wisconsin, including Wisconsin Retirement System (WRS) benefits.
Federal government pensions (Civil Service, FERS, CSRS): Taxable by Wisconsin.
Railroad Retirement — Tier 1 benefits: Fully exempt under federal law (states may not tax Tier 1 railroad retirement benefits).
Railroad Retirement — Tier 2 benefits: Taxable by Wisconsin.
Source: https://www.revenue.wi.gov/Pages/Individuals/retirement.aspx | https://www.revenue.wi.gov/DOR%20Publications/pb106.pdf
Retirement Account Distributions
401(k), 403(b), and traditional pension distributions: Taxable in Wisconsin as ordinary income, subject to the age 67+ exclusion below.
Traditional IRA distributions: Taxable in Wisconsin.
Roth IRA qualified distributions: Not taxable in Wisconsin (qualified distributions are excluded from income for both federal and Wisconsin purposes).
Source: https://www.revenue.wi.gov/DOR%20Publications/pb106.pdf
Age 67+ Retirement Income Exclusion (New for 2025 — Act 15)
The most significant Wisconsin retirement tax change in decades: for Tax Year 2025, Wisconsin residents who are age 67 or older by December 31, 2025 may subtract up to:
- $24,000 of qualifying retirement income (single filers and married filing separately per spouse if each qualifies)
- $48,000 (married filing jointly, both spouses age 67+)
Qualifying income: Distributions from qualified retirement plans under IRC (401(k), 403(b), pension plans) and IRAs under 26 USC § 408. Does not include income already exempt under other provisions (Social Security, military retirement, Railroad Tier 1).
Trade-off: Claiming this exclusion means you cannot claim any Wisconsin income tax credits in that tax year — including Earned Income Credit, Homestead Credit, School Property Tax Credit, Veterans Property Tax Credit, or any other credit. Credits cannot be carried forward if foregone.
Who this benefits most: Retirees with significant retirement income distributions who have little or no credits to claim.
Part-year residents: Must prorate by ratio of Wisconsin AGI to federal AGI.
Nonresidents: Not eligible for this exclusion.
Prior law: Before 2025, only up to $5,000 ($10,000 MFJ) of retirement income was excludable, and only if FAGI was under $15,000 ($30,000 MFJ).
Source: https://www.revenue.wi.gov/Documents/2025-Tax-Update-Three-Slides.pdf | https://docs.legis.wisconsin.gov/2025/related/acts/15 | https://www.revenue.wi.gov/DOR%20Publications/pb106.pdf
Students
College students attending school in Wisconsin do not automatically become Wisconsin residents for tax purposes.
You remain a nonresident if:
- You maintain legal residence (domicile) in another state
- Your presence in Wisconsin is temporary for educational purposes
- You intend to return to your home state after graduation
You owe Wisconsin tax only on Wisconsin-source income:
- Wages earned from working in Wisconsin during the school year or summers
- Scholarships/fellowships used for non-qualified expenses may be taxable
Establishing Wisconsin residency as a student:
Students CAN become Wisconsin residents if they take affirmative steps to establish domicile:
- Register to vote in Wisconsin
- Obtain a Wisconsin driver’s license
- Indicate intent to remain in Wisconsin permanently after graduation
- Simply living in a dorm or apartment for school does not establish domicile
International students: Students on F visas maintain domicile in their home country and are nonresidents of Wisconsin regardless of how long they attend school here.
Source: https://www.revenue.wi.gov/DOR%20Publications/pb122.pdf | https://www.revenue.wi.gov/TaxForms2025/2025-Form1NPR-Inst.pdf
Part-Year Residents
If you moved to or from Wisconsin during 2025, state law requires filing as a part-year resident using Wisconsin Form 1NPR.
Income allocation:
- While a Wisconsin resident: report all income from all sources (worldwide)
- While a nonresident: report only Wisconsin-source income
- Standard deduction and personal exemptions must be prorated by the ratio of Wisconsin income to federal AGI
Moving TO Wisconsin:
- Residency begins the day you establish a new Wisconsin domicile
- Report all income from that date forward
- File a nonresident or part-year return in your former state for the earlier portion of the year
Moving FROM Wisconsin:
- Residency ends the day you establish domicile in the new state
- Report all income through that date
- File a nonresident or part-year return in your new state for the period after moving
Form required: Form 1NPR — Nonresident and Part-Year Resident Income Tax Return
Download: https://www.revenue.wi.gov/TaxForms2025/2025-Form1NPRf.pdf
Instructions: https://www.revenue.wi.gov/TaxForms2025/2025-Form1NPR-Inst.pdf
Source: https://www.revenue.wi.gov/DOR%20Publications/pb122.pdf
Penalties and Interest
Late Filing Penalty
Wisconsin imposes a late filing fee (not a percentage penalty) for returns filed after the deadline without an extension. Additionally, a 5% per month (up to 25% maximum) failure-to-file penalty applies if the return is not filed within 12 months of the due date.
Source: https://docs.legis.wisconsin.gov/statutes/statutes/71/83
Late Payment — Interest
Interest accrues on unpaid Wisconsin tax at 1.5% per month (18% per year) from the original due date (April 15, 2026 for 2025 returns) until paid, even if an extension was filed.
Source: https://docs.legis.wisconsin.gov/statutes/statutes/71/82
Underpayment of Estimated Tax
If you did not pay at least the smaller of 90% of your 2025 tax liability or 100% of your 2024 tax through withholding and estimated payments, interest applies on the underpayment amount.
Safe harbor provisions: No underpayment interest applies if you paid:
- At least 90% of your 2025 tax liability, OR
- 100% of your 2024 tax liability (assuming 2024 return covered 12 months)
Source: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-ES-Inst.pdf
Forms and Publications
Primary Tax Return Forms
Form 1 (2025) is the income tax return for full-year Wisconsin residents. Download: https://www.revenue.wi.gov/TaxForms2025/2025-Form1f.pdf — Instructions: https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf
Form 1NPR (2025) is the income tax return for nonresidents and part-year residents. Download: https://www.revenue.wi.gov/TaxForms2025/2025-Form1NPRf.pdf — Instructions: https://www.revenue.wi.gov/TaxForms2025/2025-Form1NPR-Inst.pdf
Form 1-ES is the Estimated Income Tax Voucher for taxpayers who must make quarterly estimated payments. https://www.revenue.wi.gov/Pages/onlineservices/voucher-1es.aspx
Common Schedules and Supporting Forms
Schedule AD covers additions to Wisconsin income. Schedule SB covers subtractions from income, including the new retirement income exclusion for taxpayers 67+, college savings account contributions, tuition and fees, and adoption expenses. Schedule CR is used to claim other credits. Schedule CS is specifically for college savings account subtractions. Schedule OS is the Credit for Net Tax Paid to Another State, required when claiming a credit for income taxed by both Wisconsin and another state. Schedule H is the Homestead Credit claim. Schedule FC and FC-A cover the Farmland Preservation Credit. Schedule MC is the Married Couple Credit. Wisconsin Form W-220 is the nonresident employee exemption certificate submitted to a Wisconsin employer to claim exemption from Wisconsin withholding under a reciprocity agreement.
All forms and schedules: https://www.revenue.wi.gov/Pages/HTML/formpub.aspx
Key Publications
Publication 106 — Wisconsin Tax Information for Retirees: covers Social Security exemption, pension treatment, the new age 67+ retirement income exclusion, and related credits. https://www.revenue.wi.gov/DOR%20Publications/pb106.pdf
Publication 121 — Reciprocity: detailed guidance on the reciprocal agreements with Illinois, Indiana, Kentucky, and Michigan, including how to claim the exemption and what income is and is not covered. https://www.revenue.wi.gov/DOR%20Publications/pb121.pdf
Publication 122 — Tax Information for Part-Year Residents and Nonresidents: explains how Wisconsin-source income is determined, income allocation rules, and filing requirements for those who were not Wisconsin residents for the full year. https://www.revenue.wi.gov/DOR%20Publications/pb122.pdf
Publication 125 — Credit for Tax Paid to Another State: explains how to compute and claim the credit when the same income is taxed by both Wisconsin and another state. https://www.revenue.wi.gov/DOR%20Publications/pb125.pdf
Publication 128 — Wisconsin Tax Information for Military Personnel and Veterans: covers SCRA protections, military spouse exemptions, military retirement pay exemption, and veteran-specific credits. https://www.revenue.wi.gov/DOR%20Publications/pb128.pdf
Where to Check for Updates
Current Tax Rate Tables and 2025 Tax Updates:
https://www.revenue.wi.gov/Documents/2025-Tax-Update-Three-Slides.pdf
Forms Library (all 2025 forms):
https://www.revenue.wi.gov/Pages/Form/2025Individual.aspx
Standard Deduction Table (2025):
https://www.revenue.wi.gov/TaxForms2025/2025-Form1-Inst.pdf (page 35)
Wisconsin Tax Bulletin (legislative updates and rulings):
https://www.revenue.wi.gov/Pages/ISE/wtb-Home.aspx
Wisconsin Legislature (tax statutes):
https://docs.legis.wisconsin.gov/statutes/statutes/71
Administrative Code (regulations):
https://docs.legis.wisconsin.gov/code/admin_code/tax/2
DOR News and Announcements:
https://www.revenue.wi.gov/Pages/Individuals/news-articles.aspx
Email Updates Subscription:
https://www.revenue.wi.gov/Pages/HTML/lists.aspx
Official Wisconsin Income Tax Resources
All information on this page is compiled exclusively from official government sources.
Wisconsin Department of Revenue
- Main Website: https://www.revenue.wi.gov
- Individual Income Tax Hub: https://www.revenue.wi.gov/Pages/Individuals/income.aspx
- Tax Forms (2025): https://www.revenue.wi.gov/Pages/Form/2025Individual.aspx
- Filing Requirements: https://www.revenue.wi.gov/Pages/FAQS/pcs-indreq.aspx
- Online Filing (WisTax): https://www.revenue.wi.gov/Pages/WisTax/home.aspx
- Make a Payment: https://tap.revenue.wi.gov/pay/
- Refund Status: https://tap.revenue.wi.gov/RefundStatus/
- Tax Credits: https://www.revenue.wi.gov/Pages/HTML/formpub.aspx
- Residency Guidance: https://www.revenue.wi.gov/DOR%20Publications/pb122.pdf
- Military and Veterans: https://www.revenue.wi.gov/Pages/Individuals/military.aspx
- Retirement Income: https://www.revenue.wi.gov/Pages/Individuals/retirement.aspx
- Reciprocity: https://www.revenue.wi.gov/DOR%20Publications/pb121.pdf
- Tax Rates FAQ: https://www.revenue.wi.gov/Pages/FAQS/pcs-taxrates.aspx
Wisconsin Tax Code and Regulations
- Wisconsin Statutes, Chapter 71 (Income Tax): https://docs.legis.wisconsin.gov/statutes/statutes/71
- Wisconsin Administrative Code, Tax Chapter: https://docs.legis.wisconsin.gov/code/admin_code/tax
- 2025 Wisconsin Act 15: https://docs.legis.wisconsin.gov/2025/related/acts/15
Contact Information
Phone (Individual Income Tax): (608) 266-2486
Phone (Business / General): (608) 266-2776
Hours: Monday–Friday, 7:45 a.m. – 4:30 p.m. CT
Refund Status Phone: (608) 266-8100 (Madison); (414) 227-4907 (Milwaukee); 1-866-947-7363 (toll-free)
Mailing Address:
Wisconsin Department of Revenue
Customer Service Bureau
PO Box 8949
Madison WI 53708-8949
Contact form: https://www.revenue.wi.gov/Pages/ContactUs/home.aspx
Submit a question: https://www.revenue.wi.gov/Pages/ContactUs/dorhelp.aspx
Taxpayer Assistance
VITA (Volunteer Income Tax Assistance):
https://www.revenue.wi.gov/Pages/VITA/home.aspx
Phone: 1-800-906-9887 or call 211
AARP Tax-Aide:
Phone: 1-888-227-7669
Tax Glossary
Wisconsin Adjusted Gross Income (WAGI): Federal AGI adjusted for Wisconsin-specific modifications (additions on Schedule AD, subtractions on Schedule SB). The starting point for calculating Wisconsin taxable income.
Taxable Income: WAGI minus the Wisconsin standard deduction (sliding scale) and personal exemptions.
Domicile: Your permanent legal home — the place you intend to return to indefinitely. Determines Wisconsin residency for tax purposes.
Nonresident: A person domiciled in another state or country who may earn Wisconsin-source income.
Part-Year Resident: A person who changes their domicile into or out of Wisconsin during the tax year.
Withholding: Tax withheld from wages by an employer and remitted to the state on behalf of the employee.
Reciprocity: Agreement between Wisconsin and Illinois, Indiana, Kentucky, and Michigan providing that residents pay employee wages income tax only to their home state.
Sliding Scale Standard Deduction (SSSD): Wisconsin’s variable standard deduction that phases down from a maximum to zero as income increases.
Tax Credit: A dollar-for-dollar reduction in tax owed (e.g., a $500 credit reduces tax by $500).
Estimated Tax: Quarterly prepayments of tax due on income not subject to withholding (self-employment, investment income, pension distributions, etc.).
Retirement Income Exclusion: For 2025, taxpayers age 67+ may subtract up to $24,000 ($48,000 MFJ) of qualifying retirement distributions from Wisconsin taxable income under 2025 Wisconsin Act 15.
Information Verification Log
| Information Verification Log — Wisconsin Income Tax (2025) | ||
|---|---|---|
| Information Type | Source | Last Verified |
| Tax rates and brackets (2025) | 2025 Tax Update – Three Slides (PDF) | February 18, 2026 |
| Bracket legislation | Wisconsin Act 15 (2025) | February 18, 2026 |
| Standard deduction amounts | 2025 Form 1 Instructions (PDF) | February 18, 2026 |
| Filing thresholds | 2025 Form 1 Instructions (PDF) | February 18, 2026 |
| Retirement income exclusion (Act 15) | 2025 Tax Update – Three Slides (PDF) | February 18, 2026 |
| Reciprocity agreements | Publication 121 — Reciprocity | February 18, 2026 |
| Social Security exemption | Publication 106 — Social Security Income | February 18, 2026 |
| Official DOR individual income tax page | Wisconsin DOR — Individual Income Tax | February 18, 2026 |
Update History
February 2026 — Initial Publication
- Published comprehensive Wisconsin income tax guide for Tax Year 2025
- All sections verified from official Wisconsin Department of Revenue sources
- Incorporated 2025 Wisconsin Act 15 changes: expanded 4.40% bracket, new age 67+ retirement income exclusion, increased adoption expenses deduction
Verification Schedule:
- Annual Update: January (new tax rates and brackets)
- Mid-Year Review: June (legislative changes, new guidance)
- Continuous Monitoring: Emergency tax legislation, disaster relief, administrative rulings
- Source Link Check: Quarterly (all .wi.gov URLs verified functional)
Last comprehensive update: February 18, 2026
Next scheduled review: January 2027 (Tax Year 2026 updates)