Bill Payment Options:
- MasterCard, American Express, Discover or Visa - as well as e-check is accepted. A convenience fee per transaction will be charged by the payment processing company for these services. When paying by electronic check, always ensure your RTMUA account number is referenced on the electronic check documentation.
Online Payments
Conveniently pay your bill anyplace, anytime 24/7. You can choose to make a one-time payment OR you can register to manage your account online.

AutoPay
- Set it and forget it.With automatic payments, your balance is paid in full each quarter.
Schedule a Payment:
- Schedule your payment for a specific future date or recurring payments.
Pay by Text:
- Sign up to get text notifications about your bill and have the option to pay through text message
Pay by Phone using 24/7 automated system:
-Use our 24/7 automated system to make a secure payment by phone: (855) 394-1162
Mail a Payment:
- Mail check along with the payment stub (the top part of the bill) to:
RTMUA
365 Old York Road
Flemington, NJ 08822
- NOTE: Credit card payments are NOT accepted by mail
- DO NOT POST DATE CHECKS, THEY WILL BE RETURNED
Dropbox (check payments only):
-You may bring your payment to the Raritan Township MUA Administration building at 365 Old York Road in Flemington and place the payment in the dropbox marked Sewer Payments by the front door.
To contact Customer Billing, call (908) 782-7453 extension 12.