Social Security does not operate a general fax line for the public

Social Security Administration (SSA) does not publish a single fax number that accepts incoming faxes from the public. The agency stopped accepting routine faxed requests years ago and now directs most people to phone, mail, or online channels instead.

If you have a specific document you need to send to Social Security — such as medical evidence, a birth certificate, or proof of income — the right method depends on what you are sending and which SSA office handles your case. Faxing is possible in limited situations, but you must first contact SSA directly to get the correct fax number for that specific purpose.

Key Takeaways

  • Social Security does not have a public fax line; you must call or visit in person to learn whether faxing is an option for your document.
  • The main Social Security phone line is 1-800-772-1213 (TTY 1-800-325-0778), and representatives can tell you where to send documents by fax if that method is available for your situation.
  • Mailing documents to your local Social Security office or using the online portal at ssa.gov is usually faster and more reliable than faxing.
  • If you are working with a Social Security representative or field office on an active case, that office may have a fax number you can use to submit follow-up documents.

When Social Security will accept a fax

Faxing works only in narrow circumstances. If you are already in contact with a specific Social Security office — for example, you are appealing a decision or your case is under review — that office may accept faxed documents related to your case. The office staff will tell you their fax number and what documents they need.

You cannot fax a new claim, a general question, or a request to change your address. Those must go through phone, mail, or the online account portal at ssa.gov. If you are unsure whether faxing is an option for what you need, call 1-800-772-1213 and ask the representative directly.

How to find the correct fax number for your situation

Call the main Social Security line at 1-800-772-1213. Tell the representative what document you need to send and why. They will tell you whether faxing is possible and, if it is, provide the fax number for the office that handles your case.

Have ready the name and address of the Social Security office you are working with, or your Social Security number, so the representative can locate your case quickly. The call is free, and wait times are usually shorter early in the morning or mid-week.

If you are deaf or hard of hearing, use the TTY line at 1-800-325-0778, or call through a relay service. Video relay service (VRS) is also available.

Alternatives that are faster than fax

The online portal at ssa.gov (called "my Social Security") lets you upload documents directly to your account if you have one. You can create a free account using your email address and Social Security number. This method is secure, creates a record of what you sent, and does not depend on fax machine availability.

Mailing documents to your local Social Security office is also reliable. Include a cover letter with your name, Social Security number, and a brief explanation of what you are sending. Mail to the address of the office handling your case; the representative who gave you that fax number can also provide the mailing address.

In-person delivery is fastest if you live near a Social Security office. You can walk in during business hours, hand documents to a representative, and receive a receipt showing what was received and when.

What to include if you do fax a document

Always include a cover sheet with your name, Social Security number, date of birth, phone number, and a brief description of what you are faxing and why. This prevents your documents from being lost or attached to the wrong case.

Keep a copy of everything you fax. After you fax, call the office within one or two business days to confirm they received it. Ask for the name of the person who received it and the date and time it arrived. This creates a record in case there is a dispute later about whether you sent something.

Frequently Asked Questions

Can I fax a new Social Security claim?

No. New claims must be filed by phone (1-800-772-1213), online at ssa.gov, or in person at your local office. Faxing is only for documents related to an existing case or appeal.

What if I fax something and Social Security says they never got it?

This is why keeping a copy and calling to confirm receipt matters. If there is a dispute, ask Social Security for the fax machine log or receipt showing the date and time your fax arrived. If they have no record, ask whether you can mail or upload the document instead.

Is there a fax number I can use to reach Social Security from outside the United States?

No. International callers should use the main phone line 1-800-772-1213 (some international plans charge for this call). Mailing documents or using the online portal at ssa.gov is often more practical for people outside the U.S.

How long does it take Social Security to process a faxed document?

Processing time varies, but typically one to two weeks after they confirm receipt. During busy periods it may take longer. Always follow up by phone if you do not hear back within three weeks.