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myAmeren.com Registration

Register for a myAmeren account to access your 401(k), benefits and additional employee information.


For questions, please call 877.7my.Ameren (877.769.2637), option 9.

Personal Information

* Required Fields

Example: MM-DD-YYYY

DO NOT include letters (e.g. enter 12345, not c12345)

Your Social Security Number and Date of Birth are required for Ameren verification purposes. Ameren does not share this information with third parties. View our Privacy Statement for details.



Contact Information

Your Email Address will be used to confirm transactions you initiate with myAmeren.com, and it will be the address used to send your Password if you need to reset it.




myAmeren Login Information
UserID Requirements
  • Must be between 6-50 characters.
  • Must not contain spaces.
  • Must not contain "Ameren".
  • May contain letters, numbers or the special characters _@-.
Password Requirements
  • Must be at least 8 characters.
  • Must include a number, a letter and a special character (e.g. @!#&).
  • Must have no more than 2 repeating characters (e.g. aaa).
  • May not contain two or more consecutive spaces.
  • May not contain the characters < and >.
If you forget your Password, you will be asked to answer your Security Question.

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