Payment Options


  • By mail to: 25500 Gibraltar Road, Flat Rock MI 48134 (Check/Money Order)
  • At City Hall Treasurer's Office (Cash/Check/Money Order/Credit/Debit)
  • Outdoor 24-hour drop box, located in the parking lot near the flag pole. (Check/Money Order)
  • Payment through bank by eligible branches (Checking/Saving)
  • Automatic Withdrawal (Checking/Saving)
  • Online HERE (Credit/Debit)


Postmarked Payments will no longer be accepted after the due date.


All water payments to the City of Flat Rock must be received in our office on or before the due date of the bill or they will be subject to late fees and interest. We will no longer accept the postmark date for payments.

NOTE: If you use your financial institution's bill-pay option, they do not guarantee delivery of the check to our office by the specified due date. Please plan your payments accordingly.


Water & Sewer Rate


Water & Sewer Tap Fees