Use an electronic check, credit or debit card to make one-time or scheduled payments. 
 
 
Electronic Check Western Union Speedpay
Pay your Ameren Missouri bill online by electronic check. A fee is not charged for this payment option.
  


      

  
   

Pay online with a valid MasterCard or VISA credit or debit card or an American Express credit card. (Card transactions are limited to 5 within a 25-day period.) 
   
Western Union Speedpay charges a $2.75 convenience fee for each transaction. (more
   


 

Online Banking Payment Option  
Consider using your bank's online payment services. You can enroll and use the service to pay your monthly Ameren Missouri bill. A fee may be charged by the bank for this payment option.  
    
    
    
   
   
   
   
   
   
   
   
   
    
 
 
 
 
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