Businesses operating in Washtenaw County, Michigan face a combined sales tax rate of 6% in 2026. The 0% local rate is added to the 6% state base. Home to 372,258 residents, the county offers substantial commercial opportunities.
For a $500 purchase in Washtenaw County, the sales tax would be $30.00, bringing the total to $530.00.
Business Compliance in Washtenaw County
Businesses must register with the Michigan Department of Treasury to collect and remit sales tax. Filing frequency depends on sales volume. With a population of 372,258, Washtenaw County offers significant market potential for businesses of all sizes.