Online Utility Billing

Utility Billing Online offers customers a convenient way to pay their utility bill and view their utility usage.

First Time Users


In order to use online billing, you must first register your account online by following the simple steps below.
  • Step 1: You will need your most recent bill to register.
  • Step 2: Fill out the required fields in the Enable Online Account Access form.
  • Step 3: Check your email for a temporary pin number sent to you.
  • Step 4: You are now registered and can use your account number and temporary PIN to access The City of San Marcos Online Utility Billing. Please bookmark this page for future reference.
  • Step 5: You can change your password after you log in by clicking Change Password in the main menu.

Returning Users


Click the 'Pay Your Utility Bill' link at the top of this page. To access your account, enter either your account number or email address and required pin (example: account 002-0012345-01 would be entered as 12345-01).

Features of Online Utility Billing Service


  • Review and pay your utility bill 24 hours, 7 days a week
  • Account summary information
  • Sign up to receive paperless Utility Bill notifications via email
  • No-fee associated with this service
  • Disconnect and Connect Services