Paying My Bill

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Meet AquaHawk, a free online tool which will help City of Ann Arbor ​water customers to:

  • ​View and track water consumption​  
  • Get water alerts via email, text or phone

You may now register for the new online consumption tool. Users with multiple accounts with the same customer number only need to add one account per customer number and the remaining accounts with that customer number will be linked within 24 hours.​​​​​

Updated water rates

The Ann Arbor City Council enacted changes to water rates effective January 1, 2021. Water Rates and Charges have been updated to reflect these changes.


Customers have the option of making one time payments with no registration required. Or, you may register to take advantage of several features including saving your payment method, signing up for paperless billing, setting up a recurring auto-payment plan, and linking multiple accounts.  

Please be aware that registration in the payment system will require your customer # (last 6 digits of your account #) and the last name on the account.

Click here to make an online payment.


To pay by phone, have your 12 digit water billing account number and call 844.395.2242. There is no charge to pay by phone. 


Send checks to:

Dept # 77610 
City of Ann Arbor Treasurer
P.O. Box 77000 
Detroit, MI  48277-0610

*Please include bill stub or full account number on check.

Drop boxes

Drop boxes are available 24-hours a day on the north side of the City Hall, 301 E. Huron, Ann Arbor, MI 48104 located on the corner of East Ann St and North Fifth Ave (Blue drop box) as well as in the building, just inside the Ann Street entrance (Black drop box).

Payments will be processed the next business day.

In person

In person payments can be made at the City of Ann Arbor Customer Service & Payment Center located within Larcom City Hall, 301 E. Huron, Ann Arbor, MI 48104. Business hours are Monday through Friday 8:00 a.m. to 5:00 p.m. (except holidays).

You may also check your water usage and bill information online, with your account number, any time.


City of Ann Arbor: The city may be able to postpone payments on utilities for those who are unable to pay as a result of COVID-19.  Please call customer service at 734.794.6333 to request a payment delay on your account. 

Barrier Busters (Washtenaw County): Connect with resources via Barrier Busters for rent, mortgage and utility assistance, transportation, food assistance, and other direct support needed as a result of the COVID-19 pandemic - English (PDF) | Spanish (PDF). ​

Customer Service Center

Larcom City Hall, first floor 
8.00 a.m. to 5:00 p.m. Monday-Friday (except holidays)

301 E. Huron St.
Ann Arbor, MI 48104

Assistance by phone or email 7:30 a.m. to 5:30 p.m. Monday-Friday (except holidays)
Fax: 734.994.8991
[email protected]