Wisconsin DOR 2026: State Tax Filing, Refund, Login & Phone
A practical Wisconsin Department of Revenue guide for residents, businesses, employers, property owners, tax professionals and vehicle-related tax users who need My Tax Account login help, refund status, state income tax filing, WisTax, sales tax, withholding tax, corporate franchise tax, property tax direction, notices, Power of Attorney and official phone numbers.
Quick Answer: What Does the Wisconsin Department of Revenue Do?
The Wisconsin Department of Revenue administers state tax programs, My Tax Account online services, Wisconsin individual income tax, business tax accounts, sales and use tax, withholding tax, corporate franchise/income tax, refund status tools, property tax guidance, eRETR real estate transfer resources, alcohol and tobacco tax topics, unclaimed property and taxpayer service contacts.
For individuals
Use DOR for Wisconsin Form 1, Form 1NPR, WisTax, refund status, payments, estimated tax, Homestead Credit, notices, name/address changes and Power of Attorney.
For businesses
Use My Tax Account for business registration, sales tax filing, withholding tax, payments, account updates, returns, notices and buyer refund claims.
For property owners
DOR provides property tax guidance and local government services, but bills, assessments and many exemptions are usually handled locally by county or municipal offices.
Wisconsin DOR Key Facts for 2026
Use this table before you log in, file, pay, check a refund, respond to a notice or call Wisconsin DOR.
| User question | Wisconsin DOR answer | Best next step |
|---|---|---|
| Where do I file and pay online? | Use My Tax Account for many Wisconsin tax account actions, including filing, payments, account management, refund status and business tax services. | Open the official My Tax Account portal. |
| When is my 2025 Wisconsin individual return due? | Your 2025 Wisconsin return must be filed by April 15, 2026, unless you have an extension of time to file. | File electronically when possible and keep confirmation. |
| Which individual forms are common? | Form 1 is the Wisconsin resident income tax return. Form 1NPR is for nonresidents and part-year residents. | Use official DOR forms or WisTax when eligible. |
| Can I use WisTax? | WisTax supports Wisconsin Form 1 and Homestead Credit filing and requires a complete copy of your federal income tax return in electronic format. | Check the WisTax page before starting. |
| How do I check my Wisconsin refund? | Use DOR’s refund status tool or refund phone numbers. Refund phone service is available 24/7 and updated daily. | Have the primary taxpayer SSN and expected refund amount ready. |
| What is Wisconsin’s state sales tax rate? | Wisconsin’s state sales tax rate is 5%. Many counties have a 0.5% county tax; Milwaukee County is 0.9%, and the City of Milwaukee has a 2.0% city tax. | Check current DOR rate charts before collecting tax. |
| When are sales tax returns due? | Sales and use tax returns are generally due by the last day of the month after the reporting period. Early monthly filers file by the 20th. | Use My Tax Account and confirm your assigned filing frequency. |
| Do I file a sales tax return if no tax is due? | Yes, DOR guidance says a return must be filed for each period even if no tax is due. | File the zero return by the due date. |
| What is Wisconsin corporate franchise/income tax rate? | The Wisconsin corporation franchise/income tax rate is 7.9%. | Use current Form 4/Form Corp-ES instructions and DOR business guidance. |
| Who do I call? | Customer service main: 608-266-2772. Individuals: 608-266-2486. Businesses: 608-266-2776. Refund toll-free: 866-WIS-RFND / 866-947-7363. | Use the correct line for your issue and have tax records ready. |
Wisconsin DOR Action Helper: Which Official Page Do You Need?
Choose your situation and this helper points you to the correct Wisconsin DOR action. It does not collect personal data.
Select what you need. The helper will give you the official page, what to prepare and the common mistake to avoid.
Wisconsin My Tax Account Login: Register, File, Pay and Manage Accounts
My Tax Account is Wisconsin DOR’s main online portal. It allows taxpayers to register tax accounts, file taxes, make payments, check refund statuses, search for unclaimed property and manage many individual and business tax tasks.
Use My Tax Account when you need to
- Register a business tax account.
- File sales and use tax or withholding tax.
- Make tax payments online.
- Check refund or account information.
- Change business name, address or tax ID details.
- Respond to many account actions and notices.
Before logging in, prepare
- Username and password, or new user signup details.
- SSN, ITIN, FEIN or Wisconsin tax account number.
- Tax type, filing period and payment method.
- Prior return or notice details for verification.
- Email and phone access for account security.
Wisconsin Individual Income Tax 2026: Form 1, Form 1NPR, WisTax and Due Date
Wisconsin individual income tax returns for tax year 2025 are due April 15, 2026, unless you have an extension of time to file. Wisconsin resident taxpayers commonly use Form 1, while nonresidents and part-year residents commonly use Form 1NPR.
| Individual tax item | What to know | Action |
|---|---|---|
| Form 1 | Wisconsin resident income tax return. | Use DOR forms, approved e-file, or WisTax when eligible. |
| Form 1NPR | Wisconsin nonresident and part-year resident income tax return. | Use when Wisconsin residency or source income requires it. |
| Due date | Tax year 2025 Wisconsin individual income tax returns are due April 15, 2026. | File and pay by the due date, even if you request an extension to file. |
| WisTax | WisTax supports Form 1 and Homestead Credit filing and requires a complete electronic copy of your federal return. | Open the WisTax page and confirm eligibility before starting. |
| Estimated tax | Generally required if you expect your Wisconsin income tax return to show a balance due of $500 or more. | Use Form 1-ES or DOR payment tools. |
| Power of Attorney | Form A-222 allows a representative to act on many matters before Wisconsin DOR. | Submit a properly signed form when another person needs access. |
Wisconsin DOR Refund Status: Where’s My Refund, Phone Numbers and What to Prepare
Wisconsin DOR provides online refund status tools and automated refund phone lines. Refund information is available by calling Madison, Milwaukee or toll-free refund numbers, and the automated service is available 24/7 and updated daily.
Before checking refund status
- Have the primary taxpayer Social Security number ready.
- Have the exact expected refund amount from your return.
- Confirm whether the return was e-filed or mailed.
- Check whether DOR sent an identity verification or notice letter.
- Use official DOR tools instead of third-party refund pages.
Wisconsin refund phone numbers
Refund status by phone: Madison 608-266-8100, Milwaukee 414-227-4907, and toll-free 866-WIS-RFND / 866-947-7363. Use the online status tool first when possible.
Wisconsin Business Tax Registration: My Tax Account, Sales Tax, Withholding and Account Updates
Wisconsin businesses may need DOR accounts for sales and use tax, withholding tax, corporate franchise/income tax, pass-through entity filing, excise taxes or other obligations. My Tax Account is the main portal for many business account actions.
Businesses should check DOR registration when they
- Sell taxable goods or services in Wisconsin.
- Need to collect and remit sales and use tax.
- Have Wisconsin payroll and withholding obligations.
- Operate as a corporation, S corporation, partnership or LLC with Wisconsin activity.
- Need to file buyer refund claims or amend business returns.
- Receive a DOR notice, bill or account letter.
Prepare before opening MTA
- FEIN, SSN/ITIN or existing Wisconsin account number.
- Legal business name and trade name.
- Business address, mailing address and Wisconsin location details.
- Start date of Wisconsin taxable activity.
- Tax type needed: sales, withholding, corporate, excise or other.
- Prior return, notice or payment details if updating an account.
Wisconsin Business Owner Workflow: DFI → IRS → DOR → Local License
Wisconsin DOR is not the same as the Wisconsin Department of Financial Institutions, IRS or local licensing office. Use this workflow before launching, hiring, selling taxable items or filing tax returns.
| Step | Where to go | Why it matters | Common mistake |
|---|---|---|---|
| 1. Business entity | Wisconsin Department of Financial Institutions | Forms or searches LLCs, corporations and entity records. | Thinking DOR creates your LLC. |
| 2. Federal EIN | IRS | Needed for payroll, banking and many tax registrations. | Paying unnecessary third-party EIN fees. |
| 3. State tax accounts | Wisconsin DOR / My Tax Account | Registers and manages sales tax, withholding and other Wisconsin tax accounts. | Selling taxable items before registering. |
| 4. Local permits | City, village, town or county offices | Local seller permits, licenses, zoning or health rules may apply. | Assuming DOR registration replaces local licenses. |
| 5. Industry rules | Relevant state or local agency | Alcohol, tobacco, lodging, food, construction and regulated industries may need extra approvals. | Only setting up a tax account and ignoring industry-specific rules. |
Wisconsin Sales and Use Tax: State Rate, County Tax, Milwaukee Tax, Due Dates and Zero Returns
Wisconsin’s state sales tax rate is 5%. Local rates can apply. DOR notes that many counties have adopted a 0.5% county tax; Milwaukee County increased from 0.5% to 0.9% effective January 1, 2024, and the City of Milwaukee has a 2.0% city sales and use tax.
| Sales tax topic | What to know | Best action |
|---|---|---|
| State rate | Wisconsin state sales tax is 5%. | Check whether county, city or special local taxes apply. |
| County tax | Many Wisconsin counties have a 0.5% county sales and use tax; Milwaukee County is 0.9%. | Use official current, historical and upcoming tax rate resources. |
| City of Milwaukee | The City of Milwaukee has a 2.0% city sales and use tax. | Retailers must determine whether a transaction occurs in the city. |
| Due date | Returns are generally due by the last day of the month after the reporting period; early monthly filers file by the 20th. | Confirm your assigned filing frequency in MTA. |
| 4:00 p.m. CST rule | MTA/Telefile returns and ACH Debit payments must be received by 4:00 p.m. CST on the due date. | Do not wait until the last minute. |
| Zero return | A return must be filed for each period even if no tax is due. | File the zero return to avoid account issues. |
Wisconsin Withholding Tax: Employer Filing, WT-6, WT-7, W-2 and 1099 Deadlines
Wisconsin withholding tax applies when employers withhold Wisconsin income tax from employee wages or certain reportable payments. Employers use DOR withholding guidance, assigned filing frequencies, My Tax Account and annual reconciliation rules.
Employer checklist
- Register for withholding tax if you have Wisconsin withholding obligations.
- File WT-6 deposit reports based on assigned filing frequency.
- File annual reconciliation WT-7 by January 31.
- Submit W-2 and applicable information returns with Wisconsin withholding by January 31.
- Keep payroll, deposit confirmations and employee statements.
Due date detail
For withholding, annual reconciliation WT-7, wage statements and information returns with Wisconsin withholding are due January 31. Semi-monthly WT-6 deposit due dates depend on the assigned reporting period.
Wisconsin Corporate Franchise / Income Tax: 7.9% Rate, Forms and Business Activity
Wisconsin DOR guidance states that the corporation franchise or income tax rate is 7.9%. Corporations doing business in Wisconsin, organized under Wisconsin law, licensed to do business in Wisconsin or receiving Wisconsin-source income should review official DOR corporate guidance.
Businesses that should check corporate tax
- C corporations doing business in Wisconsin.
- Corporations with Wisconsin-source income.
- Wisconsin corporations with activity outside the state.
- Foreign corporations licensed or doing business in Wisconsin.
- Tax-option S corporations and pass-through entities with Wisconsin reporting questions.
Not the same as entity formation
Entity records and DOR tax filing are separate. A corporation or LLC may need Department of Financial Institutions filings, IRS EIN, DOR tax registration, sales tax, withholding and corporate or pass-through tax reporting depending on activity.
Wisconsin Property Tax: Why DOR Is Not Usually Where You Pay Your Bill
Wisconsin DOR provides property tax resources, equalization information and local government services, but property tax bills, payments, assessments and many exemptions are usually local. Start with your municipal treasurer, county treasurer, assessor or county property office depending on the issue.
| Property tax issue | Usually correct office | Why |
|---|---|---|
| Tax bill or payment | Municipal or county treasurer | Property tax collection is handled locally. |
| Assessed value | Local assessor | Assessment and valuation questions start locally. |
| Lottery and Gaming Credit or property tax credit | DOR guidance plus local bill/records | Rules are statewide, but records and bills are local. |
| Appeal or dispute | Local board of review / local appeal process | Appeal deadlines are tied to local assessment notices. |
| Statewide property tax information | Wisconsin DOR property tax pages | DOR publishes guidance, data and local government resources. |
Wisconsin Unclaimed Property, eRETR and Records: DOR Tools People Miss
Wisconsin DOR also provides tools that are not standard income-tax filing tasks. These include unclaimed property searches, Electronic Real Estate Transfer Return (eRETR), requesting tax records and Power of Attorney forms.
Unclaimed property
My Tax Account and DOR unclaimed property resources help users search and claim eligible unclaimed property. Prepare identity documents and follow official claim instructions.
eRETR real estate transfer
Electronic Real Estate Transfer Return resources apply to real estate transfer reporting. Real estate users should follow DOR eRETR instructions and county recording requirements.
Tax records
DOR provides resources for requesting copies of tax records. Prepare tax year, tax type, identification and authorization documents.
Power of Attorney
Form A-222 is Wisconsin’s Power of Attorney form for matters before DOR, including access to confidential Wisconsin tax information.
Wisconsin DOR Notice, Bill, Audit or Collection Balance: What To Do Next
A Wisconsin DOR notice can involve refund verification, identity protection, missing returns, account mismatch, sales tax, withholding tax, audit, appeal rights, payment balance or collection action. Do not ignore it, but verify it through official DOR channels before paying or sharing sensitive information.
| Notice type | First thing to check | Best action |
|---|---|---|
| Refund or ID verification notice | Tax year, letter ID and requested verification method. | Use official DOR tools and avoid suspicious email/text links. |
| Missing return notice | Tax type, period and confirmation records. | Compare with filed returns and submit proof or file if needed. |
| Sales tax notice | Reporting period, rate, zero-return status and MTA confirmation. | Prepare sales records, exemption data and payment proof. |
| Withholding notice | WT-6, WT-7, W-2/1099 and deposit records. | Compare payroll records before contacting DOR. |
| Audit or appeal issue | Deadline, tax period, documents requested and appeal rights. | Organize records and ask a qualified tax professional when needed. |
| Collection balance | Tax type, amount, period, penalties and payment options. | Call the collection line or use official payment options promptly. |
Wisconsin Local Tips: Milwaukee, Madison, Green Bay, County Tax and Local Offices
Wisconsin tax searches often involve multiple government offices. DOR handles state tax administration, but entity formation, property tax bills, local permits and many assessment issues belong somewhere else.
Milwaukee sales tax tip
Milwaukee tax can be higher than the state base rate because Milwaukee County and the City of Milwaukee have local rates. Retailers must determine whether a sale is in the city and apply the correct combined rate.
Madison and Dane County tip
For state tax account questions, use DOR. For local property bills, assessments, permits or city/county fees, start with the local treasurer, assessor or local office listed on your notice.
Green Bay and Fox Valley tip
County sales tax and business license requirements can differ. Check the DOR rate chart for sales tax and local government websites for permits or room tax rules.
Tourism and lodging tip
Short-term rentals, hotels and local room taxes may involve state sales tax plus local rules. Platform collection does not always solve every Wisconsin state and local filing requirement.
Business entity tip
The Wisconsin Department of Financial Institutions is usually the entity-record office. Wisconsin DOR is the tax-account office. Many businesses need both steps plus an IRS EIN.
Call-before-visiting tip
Before visiting an office, call or check the specific DOR location page. Bring notices, returns, payment confirmations, ID numbers, filing periods and Power of Attorney if representing someone else.
Wisconsin Department of Revenue Phone Numbers and Contact Details
Use the correct Wisconsin DOR contact path before calling. Customer service hours are listed as 7:45 a.m. to 4:30 p.m., Monday through Friday. Refund status phone service is available 24/7 and updated daily.
| Need | Official contact | What to prepare |
|---|---|---|
| Customer service main | 608-266-2772 | Taxpayer ID, notice, tax year, tax type and account summary. |
| Individual income tax | 608-266-2486 | SSN/ITIN, tax year, return copy and notice details. |
| Business tax line | 608-266-2776 | FEIN, business tax account, MTA details and filing period. |
| Refund status Madison | 608-266-8100 | Primary SSN and exact expected refund amount. |
| Refund status Milwaukee | 414-227-4907 | Primary SSN and refund amount. |
| Refund status toll-free | 866-WIS-RFND / 866-947-7363 | Use the automated 24/7 refund status service. |
| Back taxes / collection balance | 608-266-7879 | Notice, tax period, balance due and payment plan records. |
| My Tax Account help | 608-261-5338 | Username, account type, business ID and access issue details. |
Wisconsin DOR FAQs
Visible FAQs below match the FAQPage schema included at the end of this article.
What is the official Wisconsin Department of Revenue website?
The official Wisconsin Department of Revenue website is revenue.wi.gov. Use it for official tax, refund, forms, payment, notice and contact information.
What is Wisconsin My Tax Account?
My Tax Account is Wisconsin DOR’s online portal for many filing, payment, registration, refund status, business account and tax account actions.
How do I check my Wisconsin refund status?
Use the official Wisconsin refund status tool and prepare the primary taxpayer Social Security number and the exact expected refund amount.
What phone number checks Wisconsin refund status?
Refund status is available at 608-266-8100 in Madison, 414-227-4907 in Milwaukee, or toll-free 866-WIS-RFND / 866-947-7363.
When are Wisconsin 2025 individual tax returns due?
Wisconsin individual income tax returns for tax year 2025 are due April 15, 2026, unless you have an extension of time to file.
What is Wisconsin Form 1?
Wisconsin Form 1 is the resident individual income tax return.
What is Wisconsin Form 1NPR?
Form 1NPR is the Wisconsin nonresident and part-year resident income tax return.
Can I file Wisconsin taxes with WisTax?
WisTax supports Form 1 and Homestead Credit filing for eligible users and requires a complete electronic copy of the federal return.
When are Wisconsin estimated tax payments required?
Generally, Wisconsin estimated tax payments are required if you expect your Wisconsin income tax return to show a balance due of $500 or more.
What is Wisconsin’s state sales tax rate?
Wisconsin’s state sales tax rate is 5%, with county and local taxes where applicable.
Does Wisconsin have county sales tax?
Many Wisconsin counties have a 0.5% county sales and use tax. Milwaukee County is 0.9%.
What is the City of Milwaukee sales tax?
The City of Milwaukee has a 2.0% city sales and use tax, in addition to state and applicable county tax.
When are Wisconsin sales tax returns due?
Sales and use tax returns are generally due by the last day of the month after the reporting period, except early monthly filers who file by the 20th.
Do I file a Wisconsin sales tax return if no tax is due?
Yes. Wisconsin DOR guidance says a return must be filed for each period even if no tax is due.
What is the 4:00 p.m. CST sales tax payment rule?
Returns filed through My Tax Account or Telefile and ACH Debit payments must be received by 4:00 p.m. CST on the due date.
What is Wisconsin’s corporate franchise or income tax rate?
Wisconsin’s corporation franchise or income tax rate is 7.9%.
What is Wisconsin withholding tax?
Wisconsin withholding tax is tax withheld by employers or payers and remitted to Wisconsin DOR under state withholding rules.
When is Wisconsin WT-7 due?
The annual withholding reconciliation WT-7, wage statements and information returns with Wisconsin withholding are due January 31.
Does Wisconsin DOR form my LLC?
No. Wisconsin business entity records are generally handled by the Wisconsin Department of Financial Institutions, while Wisconsin DOR handles tax accounts.
Does Wisconsin DOR handle property tax payments?
Property tax payments are usually handled by local municipal or county treasurers, not normal Wisconsin DOR income tax filing tools.
Who handles Wisconsin property assessments?
Local assessors usually handle assessment and valuation questions, while DOR provides statewide property tax guidance and local government resources.
What is Wisconsin Form A-222?
Form A-222 is Wisconsin’s Power of Attorney form for appointing a representative for matters before the Department of Revenue.
How do I request Wisconsin tax records?
Use Wisconsin DOR’s tax records request guidance and prepare taxpayer identification, tax years, tax type and authorization documents.
Does Wisconsin DOR manage unclaimed property?
Yes. Wisconsin DOR provides unclaimed property resources and search tools.
What is eRETR in Wisconsin?
eRETR is Wisconsin’s Electronic Real Estate Transfer Return system for real estate transfer reporting.
What is the Wisconsin DOR individual income tax phone number?
The Wisconsin DOR individual income tax phone number is 608-266-2486.
What is the Wisconsin DOR business tax phone number?
The Wisconsin DOR business tax phone number is 608-266-2776.
What are Wisconsin DOR customer service hours?
Wisconsin DOR customer service call center hours are 7:45 a.m. to 4:30 p.m., Monday through Friday.
What should I prepare before calling Wisconsin DOR?
Prepare your SSN, ITIN, FEIN, Wisconsin tax account number, tax year, filing period, notice, return copy and payment confirmation if available.
What should I do if I received a Wisconsin DOR notice?
Read the tax type, tax period, deadline and requested action, then verify through official DOR channels and respond before the deadline.
Can a short-term rental have Wisconsin state and local tax issues?
Yes. Short-term rentals may involve Wisconsin sales tax plus local room tax or other local requirements, so platform collection may not cover every obligation.
Is this website the official Wisconsin DOR website?
No. This is an independent informational guide. Use official Wisconsin DOR and My Tax Account pages for filing, payment, refund and account decisions.
Final Recommendation: Use This Page as Your Wisconsin DOR Roadmap
Start here to understand the correct Wisconsin DOR path, then complete sensitive actions only through official Wisconsin DOR, My Tax Account, WisTax or local government pages. For refunds, use official DOR refund tools. For business tax, keep MTA confirmations, sales tax records, payroll records, notices and payment proof. For property tax bills or assessments, start locally.
Last editorial update: June 5, 2026. Verify final filing, payment, refund, tax rate, notice and legal details on official Wisconsin DOR pages.