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Online payment options

Electronic payment options

  • It's simple and worry free to pay your Ameren bill electronically.
    Register to create an Ameren eCustomer UserID and Password and then return to log-in (below) to start the process.
    Log-in with your Ameren eCustomer UserID and Password to start now. Options include:


Fee: none


One-time payment.
(posts to your account within 3 business days)*


Immediate payment.
(posts to your account within a few minutes)


Scheduled regular payments.
(posts to your account on the date you select)*


*Option not advisable for customers in collection action.



  • Credit or debit card with Western Union Speedpay
    Log-in and pay immediately with your credit or debit card, 7 days
    a week, 24 hours a day.

Fee: $2.75

  • Bank or financial institution's online banking service
    Your bank or financial institution may offer an online banking service where you can pay your monthly bills. By enrolling in this option, you can securely view and pay your Ameren bill anytime. Visit your bank’s Web site for more information.


Fee: Varies

Phone payment option


  • Electronic check, credit or debit card with  Western Union Speedpay
    Call (number below) and pay immediately with an electronic check or credit or debit card by phone, 7 days a week, 24 hours a day.

Fee: $2.75


Ameren Illinois

Ameren Missouri






Pay in Person option


Fee: $1.00

U.S. Mail


  • Mailing addresses for your Ameren bill.




Ameren Illinois
P.O. Box 6684
St. Louis, MO 63166-6884

Ameren Missouri
P.O. Box 66529
St. Louis, MO 63166-6529









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