Wisconsin Seller's Permit: $20 Business Tax Registration and My Tax Account
Wisconsin Seller's Permit: $20 Business Tax Registration and My Tax Account
If you sell taxable products or services in Wisconsin, you need to register with the Wisconsin Department of Revenue (DOR) before you start collecting sales tax. That registration is called Business Tax Registration, or BTR. The seller's permit it produces is what most people mean when they search for a Wisconsin seller's permit, and it is also what municipal clerks ask for when you apply for a local license. This guide covers the cost, who needs a permit, how to apply, and how to manage your account afterward.
This is informational content, not legal or tax advice. Your obligations depend on what you sell, where you sell it, and how your business is organized. Confirm your situation with the Department of Revenue or a qualified CPA or attorney before you rely on any of it.
Wisconsin has no general business license, but you still need registration
Wisconsin does not issue a single general business license at the state or county level, and most cities do not either. What almost every seller of taxable goods or services does need is tax registration with DOR. Your seller's permit is the document that shows you are registered to collect Wisconsin sales tax, which carries a 5% state rate.
Other licenses are tied to specific activities. Regulated occupations are licensed by the Department of Safety and Professional Services (DSPS). Some food and agricultural activities are licensed through the Department of Agriculture, Trade and Consumer Protection (DATCP), or through a local health department acting as DATCP's agent. Municipal clerks issue alcohol licenses and licenses for other listed activities. Each of these processes may ask for your seller's permit as proof that you are registered.
Cost at a glance
| Item | Amount | Notes |
|---|---|---|
| Initial Business Tax Registration | $20 | Covers two years |
| Renewal | $10 | Every two years after the initial period |
| Seller's permit | Issued per location | One BTR certificate lists all locations, but DOR issues a separate permit for each one |
| Filing | Electronic | Electronic filing is mandatory, handled through My Tax Account |
| State sales tax rate | 5% | Most counties add a 0.5% county tax; Milwaukee County is 0.9% and the City of Milwaukee adds 2%, so check the rate for your address with DOR |
The $20 is the only state fee for the registration itself. Your total cost will be higher if you also form an LLC, file an annual report, or pay for licenses tied to your activity.
Who needs a seller's permit
For-profit retailers generally need a permit once taxable sales reach $2,000 in a calendar year. Treat that figure as a general trigger, not a guarantee that you can wait until you reach it. If you know from the start that you will sell taxable goods or services, ask DOR whether you should register before your first sale.
The threshold depends on whether your sales are taxable, which is a separate question. Wisconsin's taxable categories are specific, and a product or service that seems like it should be taxed may not be, or the reverse. Check DOR's guidance for your product line before you count your sales toward the $2,000 figure.
Multiple locations
One BTR certificate covers your business and lists all of your locations. DOR then issues a separate seller's permit for each location. A business with three storefronts will hold one BTR certificate and three seller's permits. Add locations through your registration rather than filing a separate BTR for each one.
How to apply
You have two routes. The Wisconsin One Stop Business Portal at onestop.wi.gov registers a new business with the Department of Financial Institutions (DFI), DOR, and the Department of Workforce Development in one pass. If you only need the tax registration, you can apply directly through DOR's Business Tax Registration system at tap.revenue.wi.gov/BTR/.
If you are forming a business entity, note that Wisconsin business entities are filed with DFI, not the Secretary of State. The One Stop portal is the efficient choice when you are doing both at once.
- Gather your information. Have your legal business name, entity type, federal Employer Identification Number (EIN) if you have one, the address of every location where you will sell, and the date you began or will begin selling.
- Choose your route. Use One Stop if you are also registering with DFI or DWD. Use DOR's BTR application if you only need the tax registration.
- Add withholding if you have employees. If you will withhold Wisconsin income tax from employees, include withholding registration in the same application so you do not file a second form.
- Pay the $20 initial fee. The fee covers two years.
- Save your certificate and confirm your permits. Keep the BTR certificate with your records, then confirm that a seller's permit has been issued for each location in My Tax Account.
Your Wisconsin tax account number and your federal EIN
Two numbers appear in most of these applications, and they are not the same thing. Your federal EIN comes from the IRS. DOR assigns its own Wisconsin tax account number when you register. Searches for a Wisconsin state tax ID usually mean that DOR number. Each number serves a different agency, so use the right one on each form.
Confirm with DOR whether your business type needs an EIN on the BTR application, and which number goes on each return and payment. Some sole proprietors and single-member LLCs are unsure which number applies to them, so ask DOR before you file your first return rather than guessing.
My Tax Account: filing and managing your registration
My Tax Account is DOR's online system for managing your tax registration. You use it to file sales and use tax returns, view your permits and filing status, and handle the day-to-day obligations of your registration. Electronic filing is mandatory in Wisconsin, so plan to file through My Tax Account from your first return. You can find the sign-in and account information on the Department of Revenue's business pages at revenue.wi.gov.
Set up access so that more than one authorized person can get into the account. If the only login belongs to one employee who leaves, you may lose access to filings you need to complete. Use a company email inbox that someone monitors, not a personal address, so that DOR correspondence does not get missed.
Renewal
The renewal fee is $10 every two years. The initial $20 covers the first two years, and each renewal after that costs $10 for the next two. Check the expiration information on your permit and in My Tax Account, and confirm the renewal window with DOR before it arrives.
Keep your state tax renewal on the same calendar as your other business deadlines. If you are an LLC, your DFI annual report is a separate obligation: $25 per year, due in the calendar quarter that contains your organization anniversary, or $40 if you file on paper. DOR and DFI will not send a combined reminder, so track both yourself.
Where clerks and licensing agencies ask for your permit
Municipal clerks commonly ask for your seller's permit before they issue a license. The City of Madison requires a copy with every license application, and alcohol applicants must show one. Expect similar requests from other cities and for other local licenses, but check each city's requirements because local rules vary. Bring a copy of the permit for each location you plan to operate from, since each location has its own permit.
Common mistakes to avoid
- Treating the seller's permit as a business license. It is tax registration. Activity-specific licenses from DSPS, DATCP, a local health department, or a municipal clerk may be separate requirements.
- Using the wrong number. Your federal EIN and your DOR tax account number are issued by different agencies. Write each one where its form asks for it.
- Filing one BTR per location. One BTR certificate covers all locations. DOR issues the separate permits.
- Waiting until the $2,000 threshold to register. The threshold is a general rule. If you know you will sell taxable items, ask DOR about timing first.
Next steps
- Confirm whether your sales are taxable and whether you have reached or will reach $2,000 in taxable sales in a calendar year.
- Register through One Stop or DOR's Business Tax Registration system, and pay the $20 initial fee.
- Add withholding registration if you will have employees.
- Set up My Tax Account with shared access, and calendar your renewal and filing dates.
- Ask your city clerk or licensing agency which permit documents they require before you apply.
- Confirm with DOR which number, your EIN or your Wisconsin tax account number, goes on each form and return.
If you want help with the planning, the Wisconsin Small Business Development Center Network, run through the Universities of Wisconsin, offers advising at wisconsinsbdc.org. For a complicated setup, such as an LLC with several owners, employees, and multiple locations, talk to a qualified CPA or attorney before you register so the structure and filings line up from the start.
Reminder: this guide is informational content, not legal or tax advice. Confirm current fees, deadlines, and requirements with the Wisconsin Department of Revenue before you act on them.