In this article
- Quick facts: Filing for sales tax in Wisconsin
- When to file and pay Wisconsin sales tax
- Wisconsin sales tax filing deadlines
- How to prepare your Wisconsin sales tax return
- How to complete and file a Wisconsin sales tax return
- How to pay sales tax in Wisconsin
- What happens after filing and paying Wisconsin sales tax
- Late filing penalties and interest
- Getting third-party help with sales tax filing
- Sales tax filing in other states
If you're registered for Wisconsin sales tax, you must file returns and pay any tax due according to the filing frequency assigned by the Wisconsin Department of Revenue. This guide covers the filing and payment process for remote sellers and out-of-state businesses using My Tax Account. Wisconsin's standard due date is the 20th of the month following the reporting period.
For broader information about Wisconsin sales tax rules, rates, and exemptions, see the Wisconsin Sales Tax Guide. For details on how to obtain a Wisconsin seller's permit, see the Wisconsin Sales Tax Registration Guide.
Quick facts: Filing for sales tax in Wisconsin
Key information about filing Wisconsin sales tax returns, including filing frequency, deadlines, and payment options.
| Fact | Detail |
|---|---|
| Filing frequency | Monthly, quarterly, or annually |
| Filing deadline | The 20th day after the period ends (annual filers: January 31) |
| Filing portal | My Tax Account (MTA) |
| Zero returns required | Yes |
When to file and pay Wisconsin sales tax
The Wisconsin Department of Revenue will assign you a filing frequency (monthly, quarterly, or annually) after you register your business.
Wisconsin sales tax returns and payments are due at the same time, by the 20th of the month following the end of the filing period. If the 20th falls on a weekend or holiday, the due date shifts to the next business day. Annual filers follow a different schedule, with returns due on January 31 for the prior calendar year.
Wisconsin sales tax filing deadlines
Wisconsin monthly filing due dates
Reports are due on the 20th of the month following the reporting month.
| Month | Filing Deadline |
|---|---|
| January | February 20 |
| February | March 20 |
| March | April 20 |
| April | May 20 |
| May | June 20 |
| June | July 20 |
| July | August 20 |
| August | September 20 |
| September | October 20 |
| October | November 20 |
| November | December 20 |
| December | January 20 |
Wisconsin quarterly filing due dates
| Quarter | Filing Deadline |
|---|---|
| Q1 (January 1, March 31) | April 20 |
| Q2 (April 1, June 30) | July 20 |
| Q3 (July 1, September 30) | October 20 |
| Q4 (October 1, December 31) | January 20 |
Wisconsin annual filing due date
Reports for the previous calendar year are due on January 31.
Important note: Zero returns
Once you have a Wisconsin seller's permit, you are required to file returns for every assigned period regardless of whether any sales tax was collected. When no sales tax was collected, you must file a zero return electronically through My Tax Account.
How to prepare your Wisconsin sales tax return
Before working on your sales tax return, collect all sales information for the tax period.
Sales transactions
You need to know your total gross sales to Wisconsin buyers and your taxable sales. Wisconsin taxes digital goods and SaaS, so software subscriptions and electronically delivered products are included in taxable sales.
Key reporting figures
In addition to your gross Wisconsin sales, filing a return requires:
- Total sales and income
- Taxable sales (including digital goods and SaaS)
- Non-taxable sales and exemptions
- Deductions and adjustments
- County and stadium taxes applicable to your sales locations
- Total sales tax collected from customers during the filing period
How to complete and file a Wisconsin sales tax return
Wisconsin sales tax returns are filed electronically through My Tax Account (MTA) and must be reported in US dollars.
Step-by-step: file a Wisconsin sales tax return
1. Collect all necessary information
Gather your sales records for the tax period. Wisconsin's combined rate includes the 5% state rate plus any applicable county tax (0.5%) and stadium tax, so make sure you have the correct totals for each component.
2. Log in and file online
- Log in to My Tax Account (MTA).
- Navigate to your Sales and Use Tax account.
- Select the filing period you want to file.
- Enter your gross sales, taxable sales, exemptions, and total tax collected.
- Review and submit your return.
3. Receive confirmation
After submitting, you will receive a confirmation number. Save this as your record of filing.
How to pay sales tax in Wisconsin
Wisconsin requires most businesses to file and pay electronically through My Tax Account. You can pay directly within the portal after filing your return. Accepted payment methods include:
- Electronic funds transfer (EFT/ACH debit) directly from a bank account
- Credit card (fees may apply)
What happens after filing and paying Wisconsin sales tax
After filing and paying, keep a copy of your return and payment confirmation for your records.
- Save your filing confirmation and payment receipt
- Keep records supporting the reported amounts
- Continue filing according to your assigned frequency, remembering the 20th due date (or January 31 for annual filers)
- File a zero return when required
➡ Need help understanding Wisconsin sales tax rules, rates, and nexus? See the Wisconsin Sales Tax Guide
➡ Need to register for Wisconsin sales tax? See the Wisconsin Sales Tax Registration Guide
Late filing penalties and interest
If you miss a Wisconsin sales tax filing deadline, file as soon as possible. Failure to file returns and remit collected tax on time results in penalties and interest charges that increase the longer you wait.
For current penalty rates and interest charges, refer to the Wisconsin Department of Revenue website.
Getting third-party help with sales tax filing
Quaderno can simplify your Wisconsin sales tax compliance by generating detailed tax reports and handling the filing process on your behalf. Connect your sales data and Quaderno manages the submission to the Wisconsin Department of Revenue, ensuring timely and accurate filing.
Sales tax filing in other states
- Arizona Sales Tax Filing Guide
- California Sales Tax Filing Guide
- Florida Sales Tax Filing Guide
- Georgia Sales Tax Filing Guide
- Illinois Sales Tax Filing Guide
- Kentucky Sales Tax Filing Guide
- Massachusetts Sales Tax Filing Guide
- New Jersey Sales Tax Filing Guide
- New York Sales Tax Filing Guide
- Ohio Sales Tax Filing Guide
- Pennsylvania Sales Tax Filing Guide
- Rhode Island Sales Tax Filing Guide
- South Carolina Sales Tax Filing Guide
- Texas Sales Tax Filing Guide
- Virginia Sales Tax Filing Guide
- Washington DC Sales Tax Filing Guide
Need help filing across multiple states?
Watch our webinar: US Sales Tax Registration & Filing Tips + AMA. Learn how international sellers register, file, and manage US sales tax compliance across multiple jurisdictions.
Note: At Quaderno we love providing helpful information and best practices about taxes, but we are not certified tax advisors. For further help, or if you are ever in doubt, please consult a professional tax advisor or the tax authorities.
