Sales Tax in Wisconsin: A Complete Guide for Ecommerce Sellers

Wisconsin is an SST member state with a simple rate structure — 5% state rate plus a 0.5% county rate in most counties, for a typical combined rate of 5.5%. There are no city-level sales taxes. Wisconsin broadly exempts clothing, making it relevant for apparel sellers who need state-by-state exemption configuration. Combined with SST membership, Wisconsin is among the more compliance-friendly states for remote sellers.

Quick reference

Economic nexus

Wisconsin’s OR threshold: $100,000 in gross sales OR 200 or more separate transactions into Wisconsin in the current or prior calendar year. Either condition alone triggers registration.

Wisconsin enacted its economic nexus rules effective October 1, 2018.

Physical nexus

Physical presence in Wisconsin creates nexus without any threshold:

• Warehouse, office, or storage facility in Wisconsin
• Amazon FBA inventory in Wisconsin fulfillment centers
• Employees, agents, or independent contractors in Wisconsin
• Sales representatives in Wisconsin

Registration

Wisconsin is an SST member state. Register through a Certified Service Provider for simultaneous registration in Wisconsin and all other SST states at no charge.

Sellers can also register directly with the Wisconsin Department of Revenue through My Tax Account (tap.revenue.wi.gov). Registration is free.

Tax rates

State rate: 5%

County additions: Most Wisconsin counties levy a 0.5% county sales tax, bringing the combined rate to 5.5%. A few counties do not levy the county tax and remain at 5%.

Notable county rates:

• Milwaukee County: 0.5% county + 0.1% baseball stadium tax = 0.6% addition = 5.6% combined
• Dane County (Madison): 0.5% = 5.5% combined
• Brown County (Green Bay): 0.5% = 5.5% combined
• Waukesha County: 0.5% = 5.5% combined

There are no city-level sales taxes in Wisconsin. The county rate is the only local addition.

What’s taxable

Generally taxable: Electronics, furniture, sporting goods, toys, most tangible personal property.

Generally exempt:

• Prescription medications
• Most food for human consumption (groceries)
• Clothing and footwear (see below, broad exemption)
• Agricultural equipment and supplies
• Residential heating fuel

Wisconsin’s clothing exemption: Wisconsin broadly exempts clothing and footwear with no price cap. Any item of clothing or footwear is exempt regardless of cost. Exceptions include:

• Protective equipment designed for sport use (not general-purpose protective gear)
• Fur clothing
• Costumes

Notable Wisconsin rules:

• Digital products: Wisconsin taxes specified digital products transferred electronically, including digital audio works and digital audiovisual works
• SaaS: Wisconsin has guidance on cloud computing and remotely accessed software, sellers of SaaS should confirm taxability for their specific product type under current Wisconsin guidance
• Food: Wisconsin broadly exempts food for home consumption. Prepared food, restaurant meals, candy, and soft drinks are taxable

Shipping taxability

Wisconsin taxes delivery charges when the shipped goods are taxable. When all goods in a shipment are exempt (including clothing shipments) the delivery charge is also exempt.

Marketplace facilitator rules

Wisconsin enacted marketplace facilitator legislation effective January 1, 2020. Qualifying marketplace facilitators collect and remit Wisconsin sales tax on marketplace-facilitated sales.

Remote sellers with no Wisconsin physical nexus whose only Wisconsin sales are through marketplace facilitators may not need to separately register. Sellers with Wisconsin physical nexus must register regardless.

State-specific notes

Clothing exemption affects shipping: Wisconsin’s clothing exemption is broad and affects the taxability of delivery charges. A shipment containing only exempt clothing carries an exempt delivery charge as well. Sellers of apparel need Wisconsin configured as a clothing-exempt state in their calculation engine.

County-only local structure: Wisconsin’s single-layer local rate (county-only, no city additions) makes rate lookup straightforward. Identify the county, apply the county rate (almost always 0.5%), and add it to the 5% state rate. The only outlier is Milwaukee County’s 0.1% stadium addition.

Low combined rate: At 5.5%, Wisconsin’s typical combined rate is among the lower rates among major states. Combined with SST membership and a simple rate structure, Wisconsin is one of the more operationally efficient states to add to a multi-state compliance program.