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International: (404) 233-4400 (not toll free)
TDD 1-877-847-4385 (for the hearing-impaired)
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For account-specific inquiries, log in to My Account, click Message Center, and go to the Messages tab. We will respond within 24 business hours.
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General mailing address
Thrift Savings Plan
P.O. Box 385021
Birmingham, AL 35238
General fax number
1-866-817-5023
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Use the Feedback button in the lower right corner of your screen to let us know how well tsp.gov meets your needs. We do not respond to feedback submitted through this page. Do not leave personally identifiable information.
Use this contact information for your specific needs
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Thrift Savings Plan
P.O. Box 979004
St. Louis, MO 63197-9000Overnight Delivery
US Bank
Box 9004
Government Lockbox SL-MO-C2GL
1005 Convention Plaza
St. Louis, MO 63101 -
Use this post office box if you are sending the TSP a court order or legal process, power of attorney, guardianship or conservatorship order, Exception to Spousal Requirements (Form TSP-16/TSP-U-16), Privacy Act request, tax levy, or associated correspondence. Also, if you are the recipient of a court-ordered payment, the forms sent to you with the decision letter (e.g., Spouse’s Election of Payment Method (Form TSP-13-S-C/ U-13-S-C), W-4Ps, or the request to waive the waiting period) should be returned to this post office box. Inquiries regarding these actions should also be sent to this address.
TSP Legal Processing Unit
P.O. Box 4390
Fairfax, VA 22038-4390
Fax Number:
(703) 592-0151Overnight Delivery
Attn: TSP Legal Processing Unit
12210 Fairfax Town Center
Unit 906
Fairfax, VA 22033 -
Use this post office box if you are sending the TSP a federal tax levy or a restitution order pursuant to the Mandatory Victims Restitution Act (MVRA).
TSP Legal Processing Unit
P.O. Box 4570
Fairfax, VA 22038-9998
Fax Number:
(703) 592-0151Overnight Delivery
Attn: TSP Legal Processing Unit
12210 Fairfax Town Center
Unit 906
Fairfax, VA 22033 -
Use this post office box if you are submitting a death benefit claim for a TSP account. This includes Information Relating to Deceased Participant, Form TSP-17, death certificates, or other documentation. If you are the recipient of a death benefit payment, the forms sent to you with the “Intent to Pay” letter (e.g., W-4Ps or the request to waive the waiting period) should be returned to this post office box. Inquiries regarding these actions should also be sent to this address.
TSP Death Benefits
Processing Unit
P.O. Box 4450
Fairfax, VA 22038-4450
Fax Number:
(703) 592-0170Overnight Delivery
Attn: TSP Death Benefits
Processing Unit
12210 Fairfax Town Center
Unit 906
Fairfax, VA 22033 -
Use this post office box if you are transferring or rolling over funds to the TSP. This includes Form TSP-60, Request for a Transfer Into the TSP, or Form TSP‑60‑R, Request for a Roth Transfer Into the TSP, the associated check for the funds, and any additional documentation. Inquiries regarding these actions should also be sent to this address.
NOTE: Do not submit any withdrawal forms to these addresses. Instead, use the “TSP Forms and General Correspondence” address above.
Thrift Savings Plan
P.O. Box 385200
Birmingham, AL 35238-5200
Fax Number:
1-844-985-1597 (toll free) or
(205) 929-8445 (not toll free)Overnight Delivery
Thrift Savings Plan
10 Inverness Center Parkway
Suite 610
Birmingham, AL 35242 -
Use this email address if you would like to contact FRTIB’s Privacy Office, or if you would like to submit a privacy complaint.
Additionally, we have developed instructions for submitting a Privacy Act request if you wish to access or correct records that FRTIB maintains about you.
FRTIB Privacy Division
privacy@tsp.gov