Wisconsin Reverse Sales Tax Calculator.

Wisconsin has a state sales tax rate of 5%, and counties can add a local sales tax of 0.5%. Most Wisconsin counties have adopted the 0.5% county tax, making the most common combined rate in Wisconsin 5.5%. Some cities and special districts can add additional taxes, but these are limited.

Milwaukee County has a combined rate of 5.5% (5% state + 0.5% Milwaukee County). Dane County (Madison) also has 5.5%. Green Bay (Brown County) is 5.5% as well. A few Wisconsin counties without a county tax remain at the base 5%, while some counties with additional special taxes may reach 5.6%–6%.

Wisconsin exempts most food for home consumption from the 5% state sales tax and the 0.5% county tax. Wisconsin has a broad grocery exemption covering most items sold in food stores. Prescription drugs are fully exempt. Agricultural inputs and farm equipment are broadly exempt in Wisconsin, reflecting the state's significant dairy and agricultural economy.

Wisconsin is notable for its manufacturing sector. The state provides broad exemptions for manufacturing equipment, machinery, and raw materials incorporated into manufactured goods. Wisconsin's manufacturing exemptions are considered among the most comprehensive in the nation.

The Wisconsin Department of Revenue administers the state sales tax. Wisconsin participates in the SST agreement. Economic nexus threshold is $100,000 in annual Wisconsin sales. Wisconsin has marketplace facilitator laws in effect. Filing is monthly for larger sellers, quarterly for smaller operations.