OPM.gov / Retirement / faq / What is Claim Number

# What is the OPM retirement claim number?

## Answer

It's the number (also known as CSA or CSF numbers) that OPM uses to identify retirement (annuity) accounts and accrued benefits. Like a bank account number, your claim number is unique and cannot be changed. Use your claim number when signing in to your account on OPM Retirement Services Online, when completing official OPM forms, or when you call or write to us.

"CSA" stands for "Civil Service Active" and is the prefix for retirees. "CSF" stands for "Civil Service Final" and is the prefix for survivors.

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## Related information

                  - What does the OPM retirement claim number look like?
                  - Where to Find a Claim Number

##                                         A claim number is required to make a help submission.                                    

                                            If you are an annuitant, you can find your CSA or CSF claim number on your 1099-R, your annual COLA notice or your Benefits Booklet.                                        

                                            If you are unable to locate your CSA or CSF claim number, or you are not a retiree, former spouse of a retiree or a survivor of a retiree, or you are inquiring about the status of a refund application, please contact us on                                        

                                            1-888-767-6738 and one of our representatives will be able to assist you.                                        

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## Contact us for more support

### Report a Death

To report a death of a Retired Federal Employee or Current Federal Employee, please click the link below that applies:
              - Report Death of a Federal Retiree
              - Report Death of a Current Federal Employee

### **Submit a help request                                    

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.

Please be advised that the information submitted must be entered by the annuitant or on behalf of the annuitant by the Representative Payee.
                                                    Formatting requirements**

Your claim number will start with "CSA" or "CSF". Enter A or F below, followed by your 7-digit claim number and your 1-character suffix (For Example: 0 or W)

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                                                We will email you in 3 to 5 business days with a response. Please do                                                not call us for an update before you receive this email.                                            

### **                                        Call us                                    

Call us if you can't find an answer to your question on OPM.gov or if you can't sign in to OPM Retirement Services Online to manage your annuity account. You may also need to call us for special or complex cases, or because we directed you to.

**Phone:**1-888-767-6738TTY: 711

**Hours:** Monday thru Friday, 7:40 a.m. to 5:00 p.m. ETClosed on federal holidays

Our busiest time is between 10:30 a.m. and 1:30 p.m. ET.

### **Write to us                                    

Please make sure your first and last name, phone number, email address, claim number, and signature are included in any inquiries or documents you mail to us. We usually respond within 1 to 3 weeks after we receive your mail.

**Retirement Operations Center**                                        U.S. Office of Personnel Management                                        Post Office Box 45                                        Boyers, PA 16017                                    

### **Visit us in person                                    

**Retirement Services Support Center**                                        U.S. Office of Personnel Management                                        1900 E. Street, NWRoom 1323                                        Washington, DC 20415Directions**

**Hours:** Monday thru Thursday, 8:00 a.m. to                                        4:00 p.m. ET                                        Friday, 8:30 a.m. to 3:00 p.m. ET                                        Closed on federal holidays                                    

### **Fax us documents                                    

OPM Retirement Services does not have a main fax number.

You should only fax us documents if an official OPM form or one of our Customer Service Specialists asks you to (the fax number will be provided on the form, or the Customer Service Specialist will provide you one.) Otherwise, you should mail us your documents.