Need to fax USPS headquarters? This guide lists every verified USPS department fax number — FOIA, HR, Postal Inspection Service, and more — plus how to send your fax quickly from your phone using mFax.
Frequently Asked Questions
What is the USPS headquarters fax number for FOIA requests?
The USPS Records Office FOIA fax number is (202) 268-5353. Send your written FOIA request to Room 1P830, 475 L'Enfant Plaza SW, Washington, DC 20260-1101. Always include your name, contact info, a description of the records, and a fee agreement.
Is there a general USPS headquarters fax number?
USPS does not publish a single general-purpose fax number for the public. Each division has its own fax line. Use the department-specific numbers in this guide — such as (202) 268-5353 for FOIA or (336) 662-4070 for HR — to reach the right team.
How do I fax a complaint to USPS?
USPS now routes most consumer complaints through its online form at emailus.usps.com or by calling 1-800-ASK-USPS (1-800-275-8777). For written complaints, mail the Office of the Consumer Advocate at 475 L'Enfant Plaza SW, Room 4131, Washington, DC 20260-5601. There is no publicly listed consumer complaint fax line.
Can I fax USPS from my phone?
Yes. Use the mFax app on iOS or Android — upload your document, enter the USPS department fax number, and send. You receive a delivery confirmation receipt, which is useful when faxing time-sensitive materials like FOIA requests or HR paperwork.
What is the USPS HR fax number?
The USPS HR Shared Services Center (HRSSC) fax number is (336) 662-4070. It is used for employee benefits changes, compensation paperwork, and employment verification. The HRSSC phone line is 1-877-477-3273.