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This Wisconsin sales tax guide for 2026 is for business owners and CPA firms that sell in Wisconsin or ship into it from another state. Wisconsin looks simple on paper: one 5% state rate and a flat 0.5% county tax in most counties. In practice, the rate in Milwaukee is now 7.9%, two more resort communities started collecting an extra local tax on July 1, 2026, and the retailer's discount changed in late 2023 in a way many sellers still calculate wrong.
Every figure below comes from the Wisconsin Department of Revenue (DOR) as of October 2026. Local rates can change at the start of a quarter, so confirm a specific address with the DOR's rate lookup before you configure a billing system.
Wisconsin stacks up to four layers of tax on a sale. The DOR's county and city tax page lists each one.
| Layer | Rate | Where it applies |
|---|---|---|
| State sales and use tax | 5.0% | Statewide |
| County tax | 0.5% | Most of Wisconsin's 72 counties (Manitowoc added Jan 1, 2025; Racine added Apr 1, 2025) |
| Milwaukee County tax | 0.9% | Milwaukee County (up from 0.5% on Jan 1, 2024) |
| City of Milwaukee tax | 2.0% | City of Milwaukee only (since Jan 1, 2024) |
| Premier resort area tax | 0.5% or 1.25% | Listed resort municipalities, certain sellers only |
The city of Milwaukee is the only Wisconsin municipality with its own general sales tax. A sale sourced inside the city carries 5% state, 0.9% county and 2% city tax, for a combined 7.9%. A sale sourced to Milwaukee County outside the city carries 5.9%.
The old 0.1% baseball stadium district tax in the Milwaukee area ended on March 31, 2020. If a rate table in your POS or ERP still shows it, the table is out of date.
A retailer sells a $2,000 piece of equipment and delivers it.
The $48 gap between the first and last line is why address-level rate lookup matters more in Wisconsin than the flat state rate suggests.
Some tourist municipalities levy a premier resort area tax on top of the state and county tax. It applies only when the sale takes place in the resort area and the seller falls under one of the industry (SIC) codes listed in DOR Publication 403. The rate is 0.5% in most resort areas and 1.25% in the City of Wisconsin Dells and the Village of Lake Delton.
Two new resort areas started collecting on July 1, 2026: the City of Sturgeon Bay and the Town of Minocqua, both at 0.5%. Businesses in Door County and the Northwoods that sell into those communities should check whether their SIC code puts them in scope. Resort area tax is reported on a separate return (Form PRA-114), not on the regular sales and use tax return.
You must collect Wisconsin tax if you are "engaged in business" in the state. That happens in two ways.
An office, store, warehouse, inventory, employees or representatives working in Wisconsin create a collection obligation from the first sale. The small seller exception described below does not apply to a business with any physical presence in the state. For a broader look at how payroll, inventory and contractors create nexus across states, see our guide to economic nexus for growing businesses.
Per the DOR's remote sellers page, an out-of-state seller with no physical presence must register and collect once its gross sales into Wisconsin exceed $100,000 in the previous or current calendar year. Three details catch sellers out:
Example. An Ohio distributor sold $70,000 to Wisconsin retailers on resale certificates and $45,000 through Amazon in 2025. None of the resale sales were taxable, but the total of $115,000 is over the threshold. The distributor must register for 2026 and collect on its direct taxable sales.
Since January 1, 2020, marketplace providers must collect and remit Wisconsin tax on sales they facilitate. A remote seller is generally not liable for tax on those facilitated sales. If the same seller also sells through its own website and is over $100,000 in total, it must register and collect on the direct sales. Our e-commerce sales tax compliance guide walks through how to split marketplace and direct-channel reporting.
If you discover you crossed the threshold a year or two ago and never registered, talk to an adviser before you file anything. A sales tax voluntary disclosure agreement usually limits the look-back period and penalties, and the DOR's voluntary disclosure program charges the 12% regular interest rate instead of the 18% delinquent rate.
Wisconsin follows destination sourcing for county and city tax.
The DOR's own example: a La Crosse County retailer that mails a product to a customer in Dane County collects Dane County tax, even though it does no business there. Motor vehicles, boats, RVs and aircraft are sourced to where they will be customarily kept. For the general logic behind these rules, read our explainer on destination-based and origin-based sourcing.
Wisconsin taxes sales of tangible personal property, certain digital goods and a specific list of services. Anything not on the list of taxable services is not taxed.
Taxable services include:
Digital goods. Specified digital goods are taxable, along with "additional digital goods" such as greeting cards, finished artwork, periodicals, video games and news products. DOR Publication 240 has the full definitions. Software and SaaS have their own rules; our article on whether your software is taxable compares Wisconsin with other states.
Food. Food and food ingredients are exempt, except candy, dietary supplements, prepared food and soft drinks. Candy excludes items made with flour or that require refrigeration, so a granola bar with flour is exempt while a chocolate bar is taxable. A soft drink is a sweetened, non-alcoholic beverage, but drinks containing milk or more than 50% fruit or vegetable juice are excluded.
Residential energy. Under 2025 Wisconsin Act 15, residential electricity and natural gas became exempt year-round on October 1, 2025. Before that, the exemption applied only from November through April. Utilities and landlords that rebill energy should check their billing setup.
Manufacturing. Tangible personal property used exclusively and directly by a manufacturer to make products for sale is exempt, claimed on Form S-211 under the manufacturing and biotechnology reason.
The seller carries the burden of proving a sale is exempt. A fully completed certificate (Form S-211, S-211E or the Streamlined S-211-SST) received within 90 days of the sale relieves you of liability. Continuous certificates do not expire, but the DOR recommends reviewing them periodically. See our guides on managing exemption and resale certificates and on the difference between a resale certificate and a sales tax permit.
Register before your first taxable sale. In-state businesses apply online through the DOR's Business Tax Registration (BTR) system.
After registration, returns are filed and paid through My Tax Account.
The DOR assigns your filing frequency. Quarterly is the default unless the department notifies you in writing that you must file monthly or annually. Seasonal retailers file monthly.
| Filer type | Due date |
|---|---|
| Quarterly | Last day of the month after the quarter ends (Q1 due April 30) |
| Monthly | Last day of the following month |
| Early monthly | 20th of the following month |
| Annual (calendar year) | January 31 of the following year |
When a due date falls on a weekend or legal holiday, it moves to the next business day. The 20th-of-the-month deadline cited in many older articles applies only to early monthly filers.
For tax payable on or after October 1, 2023, the retailer's discount works in three tiers:
| Sales tax on the return | Discount |
|---|---|
| Under $10 | The full tax amount |
| $10 to $1,333 | $10 |
| Over $1,333 | 0.75% of the total tax, capped at $8,000 per period |
A monthly filer reporting $6,000 of tax keeps $45. A quarterly filer reporting $900 keeps $10. The old rule (0.5%, capped at $1,000) applies only to periods before October 2023. You lose the discount entirely if you pay late, and it does not apply to use tax you owe on your own purchases.
| Problem | Consequence |
|---|---|
| Return filed late | $20 late filing fee |
| Late due to negligence | 5% of the tax per month or part month, up to 25% |
| Tax paid late | Interest at 18% a year (1.5% per month) on delinquent tax |
| Tax unpaid during an approved extension | 1% per month (12% a year) |
The DOR can waive the fee and penalty when there is a reasonable explanation for the late filing. Interest is rarely waived. Our list of common sales tax mistakes to avoid covers the setup errors behind most late or short payments.
Keep sales tax records for the four-year period open to audit under Wis. Stat. § 77.59(3), and longer if you sign an agreement extending the audit period or contest an assessment. That includes invoices, receipts, purchase records, beginning and ending inventories, bills of lading and exemption certificates. If a required return was never filed, or was filed with intent to evade, there is no statute of limitations.
The DOR runs both field audits and office audits of sales tax returns. Our guide to handling a sales tax audit covers sampling, document requests and how to respond to a determination.
Wisconsin is rarely a seller's only state. Businesses that collect in several states usually move rate lookup and filing into software once they pass a handful of registrations; see our comparison of sales tax automation software. For income tax, payroll and sales tax obligations together, our multi-state tax compliance guide maps out the order to tackle them.
Yes. Anyone holding a seller's permit or use tax registration certificate must file a return for each reporting period, even when no tax is due. A missing zero return still draws the $20 late filing fee.
Generally, yes, when the item delivered is taxable. The DOR treats the delivery charge as part of the sales price whether you use your own vehicle, a carrier or the US Postal Service, so equipment sold for $950 with a $50 delivery fee is taxed on $1,000. Direct mail has its own exception for separately stated delivery charges.
Yes, if you are registered. A registered remote seller collects the county, Milwaukee city and any premier resort area tax that applies at the delivery address, the same as an in-state seller.
Generally, no. Returns must be filed through one of the DOR's electronic methods, such as My Tax Account. A seller that cannot file electronically can ask the DOR for a hardship waiver.
Madras Accountancy prepares Wisconsin sales and use tax returns, nexus reviews and exemption certificate files for US businesses and for CPA firms that want to hand off multi-state filings. Talk to our sales tax team about your Wisconsin registrations and filing calendar.
The section 4960 excise tax is 21% of nonprofit pay over $1M. From 2026 it covers all employees. See the medical carve-outs, Form 4720 and a worked example.
The paid family and medical leave tax credit is permanent from 2026. See the 12.5% to 25% rates, the premium option, the 6-month rule and how Form 8994 works.
Opportunity zones become permanent in 2027 under the One Big Beautiful Bill. See the new deferral, rural bonus, and the 2026 handoff.
