Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. flag

An official website of the United States government

Support center / Where to find your OPM retirement claim number

Where to find your OPM retirement claim number

To protect annuitants' account security, OPM only prints claim numbers (also known as CSA or CSF numbers) on official documents.

How to find your claim number on official OPM documents

  • Welcome letter

    The claim number is in the top-right area of the letter, which we send to annuitants shortly after we receive the retirement package from their former employing agency.

    Sample Welcome Letter

  • Retirement card

    The claim number is on the front of the card, which is included with the welcome letter.

    Sample Retirement Card

  • Annuity payment statements

    The claim number is in the top-right area of the statement.

    Sample Payment Summary

  • 1099-R tax form

    The claim number is in the top-center area of the form.

    Sample Tax Form

  • Correspondence letters

    The claim number may be located in the top-left or top-right area of the letter, or in the body of the letter. We don't always include claim numbers in correspondence letters to annuitants.

    Sample Correspondence letter

Was this helpful?

Was this helpful?

Contact us for more support

Submit your information below and one of our Customer Service Specialists will begin working on your request. All fields are required. We usually respond within 3 to 5 business days.

CS
Clear all