If your business makes taxable sales to customers in Wisconsin, you may need to register for a Wisconsin seller's permit before collecting sales tax. This 2026 guide explains who must register, what information you need, and how to complete the registration process through My Tax Account.
For broader information about Wisconsin sales tax rules, rates, and taxability, see the Wisconsin Sales Tax Guide. For details on filing deadlines and how to submit returns, see the Wisconsin Sales Tax Filing Guide.
Quick answers: Wisconsin sales tax registration
A quick overview of the authority, registration portal, nexus threshold, and other essentials for registering in Wisconsin.
| Fact | Detail |
|---|---|
| Authority | Wisconsin Department of Revenue |
| Registration portal | My Tax Account (MTA) |
| Economic nexus threshold | $100,000 in annual sales or 200 separate transactions into Wisconsin |
| Registration fee | Free |
| Renewal period | No periodic renewal required |
Who must register for Wisconsin sales tax
You must register for a Wisconsin seller's permit if your business has a sales tax nexus in the state. This usually applies when a business:
- Exceeds the economic nexus threshold of $100,000 in annual sales or 200 or more separate transactions into Wisconsin in the current or previous calendar year, or;
- Has a physical presence in Wisconsin, such as an office, employee, warehouse, or inventory stored in the state.
Wisconsin's dual threshold means you must register once you cross either the dollar amount or the transaction count, whichever comes first.
Once you exceed the threshold, you should register before making further taxable sales in Wisconsin. If you're unsure whether your business has nexus, see the Wisconsin Sales Tax Guide for a broader explanation.
How to register for Wisconsin sales tax
Sellers can register online through My Tax Account (MTA), the Wisconsin Department of Revenue's online services portal. This is the same portal you will use to file returns and make payments after registration.
Information you need before registering
Before applying for a Wisconsin seller's permit, have this information ready:
- Your Social Security number (if registering as a sole proprietor with no employees)
- Your Employer Identification Number (EIN), if your business has one (required for corporations, partnerships, and most LLCs)
- North American Industry Classification System (NAICS) code for your primary business activity
- The date of your first sale in Wisconsin
- Your business address and any Wisconsin locations, if applicable
Registration steps
Follow these steps to register for a Wisconsin seller's permit.
1. Create your online login
Set up your My Tax Account credentials.
- Choose a username and password
- Set up your security information
- This login is used for all future filings, payments, and account management
If you already have a My Tax Account login, you can add a sales and use tax account to your existing profile.
2. Provide your business information
Enter your business name, address, type of entity, and any Wisconsin locations.
- Remote sellers without a Wisconsin location should indicate they are selling remotely
- Wisconsin uses destination-based sourcing for remote sellers. You charge based on where the buyer is located
- The applicable combined rate includes the 5% state rate plus any county or stadium taxes in the buyer's location
3. No registration fee
Wisconsin does not charge a fee to obtain a seller's permit. You can complete registration at no cost through My Tax Account.
4. Submit your application
Review your entries and submit the application.
- You will receive an on-screen confirmation after submission
- A confirmation email is typically sent shortly after submission
5. Receive your Wisconsin seller's permit
Once approved, you will receive:
- Your Wisconsin seller's permit number (used for filing and payments)
- Your assigned filing frequency (monthly, quarterly, or annually, based on expected tax liability)
- Access to My Tax Account for filing, payment, and account management
What happens after registration
After registering, you must begin collecting Wisconsin sales tax on taxable sales and file returns based on your assigned filing frequency. Wisconsin sales tax returns are due on the 20th of the month following the reporting period.
Wisconsin taxes digital goods and SaaS, so software subscriptions and electronically delivered products are subject to the state sales tax rate. Local county taxes (0.5%) and a stadium tax in certain areas apply on top of the 5% state rate and are collected through the same return. See the Wisconsin Sales Tax Guide for details on taxability.
➡ Learn more about Wisconsin sales tax rates, taxability, and nexus in the Wisconsin Sales Tax Guide
➡ See how to file and pay Wisconsin sales tax in the Wisconsin Sales Tax Filing Guide
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 local tax authorities.
Need help registering 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.
