Please include your residential bill stub with your check or money order to ensure that your account is credited with your payment. Allow at least five days for the payment to reach us.  

Residential Payment

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

Business Payment

Ameren Missouri
P.O. Box 66301
St. Louis, MO 63166-6301

Go Paperless!
Sign up for eBill, our safe, convenient and fast electronic billing option. With eBill you can receive your Ameren bill in an email and use the notification to pay your bill online as well.