Businesses operating in Milwaukee County, Wisconsin face a combined sales tax rate of 5.6% in 2026. The 0.6% local rate is added to the 5% state base. Home to 945,726 residents, the county offers substantial commercial opportunities.
For a $500 purchase in Milwaukee County, the sales tax would be $28.00, bringing the total to $528.00.
Business Compliance in Milwaukee County
Businesses must register with the Wisconsin Department of Revenue to collect and remit sales tax. Filing frequency depends on sales volume. With a population of 945,726, Milwaukee County offers significant market potential for businesses of all sizes.