Plymouth residents face a Monday, Aug. 10 deadline to pay their 2026 summer tax bill without penalty, and the city posted a reminder on Friday, Aug. 7, with specific instructions on where and how to get it done.

Checks made out to "City of Plymouth" must reach the Treasurer's Office at City Hall, 201 S. Main St., by the end of business Monday. The office is open Monday through Friday, 8 a.m. to 4:30 p.m.

Residents who can't make it to the counter have two drop box options: the City Hall vestibule or the Plymouth District Library drive-thru. The city warns that cash should not be placed in either box.

One detail that trips people up: tax payments and water bill payments require separate checks. Combining them on one check will cause processing problems, according to the city's Aug. 7 notice.

Plymouth's charter sets the Aug. 10 cutoff earlier than the standard state deadline of Sept. 14. As we reported July 29, the earlier date catches some homeowners off guard.

What happens after Aug. 10

Under Michigan law, unpaid summer property taxes begin accruing 1% interest per month once the penalty-free window closes. A 1% administration fee also applies. Taxes still unpaid by the end of February are turned over to the Wayne County Treasurer as delinquent on March 1, 2027, with an additional 4% county fee tacked on.

Haven't received your bill?

Not getting a bill in the mail doesn't let property owners off the hook. Under state law, residents are still liable regardless of whether the statement arrived. The city directs anyone who hasn't received their bill to look it up and print a copy through the BS&A Online Property Search portal at bsaonline.com.

Questions can be directed to City Hall at (734) 453-1234.