The fastest way is mail or your online account, not the phone

Social Security accepts documents by mail, through your online account (if you have one), or by fax to your local field office. Mail is the most reliable method because you get a receipt and a clear record of what you sent and when. Your online account is faster if you already have one set up — you can upload documents directly and see them appear in your case file within hours. The phone does not work for sending documents; representatives cannot take files over the call, though they can tell you where to mail them.

Before you send anything, call your local Social Security office or check your case correspondence to confirm exactly which documents they need. Sending the wrong file or a duplicate of something already in your file wastes time. If you are applying for SSDI or appealing a denial, your case file number should be on any letter you received from Social Security — include this number on everything you mail.

Key Takeaways

  • Mail documents to your local Social Security office with your case file number clearly written on each page, and keep a copy for your records.
  • If you have a my Social Security account, you can upload documents directly and they will appear in your file within hours.
  • Medical records, work history, and financial documents are the most common files Social Security requests during an SSDI case.
  • Always ask your case worker or check your most recent letter to confirm which specific documents are needed before you send anything.
  • Fax is an option if your local office accepts it, but mail is safer because you receive written confirmation of receipt.

Mailing documents to Social Security

Find your local Social Security office address on the Social Security website or by calling 1-800-772-1213. Write your case file number and name clearly on the first page of every document you send. If you are sending multiple pages, number them (page 1 of 5, page 2 of 5, and so on) so the office knows if pages are missing when they arrive.

Use regular mail, not certified mail — Social Security does not track certified mail differently, and regular mail is faster. Include a cover letter with your name, date of birth, case file number, and a list of what you are sending. Keep a copy of everything for yourself. Mail typically arrives within 5 to 10 business days, but Social Security may take another 2 to 4 weeks to process and add it to your file.

Using your online account to upload documents

If you have a my Social Security account, log in and look for a section labeled "Documents" or "Upload Documents." Not all case types allow uploads through the website — if you do not see an upload option, your case may require mail or fax instead. When you do upload, the system will show you a confirmation that the file was received.

Documents uploaded through your account appear in your case file much faster than mail — usually within a few hours. The system accepts PDF, JPG, and PNG files. If your document is a paper copy, you will need to scan or photograph it first. Make sure the image is clear and readable; blurry or sideways photos may be rejected or cause delays.

Faxing documents to your local office

Not all Social Security offices accept fax, so call your local office first to ask whether they do and what their fax number is. If they accept fax, include a cover sheet with your name, case file number, date of birth, and a list of documents you are sending. Fax is faster than mail but slower than uploading through your online account.

Keep a record of the fax confirmation page showing the date, time, and number of pages sent. If your office does not receive the fax or loses pages, you will have proof of what you sent. Follow up with a phone call a few days later to confirm the documents arrived.

What documents Social Security usually requests

Medical records are the most common request — these include doctor's notes, test results, hospital discharge summaries, and mental health treatment records. Bring or send records from every doctor or specialist who has treated your condition in the past year, and older records if they show how your condition started or has changed over time.

Work history and earnings records come next. Social Security already has your tax records, but they may ask you to list every job you have held in the past 15 years, including dates, job titles, and how much you earned. Financial documents like bank statements, rent receipts, or proof of other income may be needed if you are also applying for Supplemental Security Income (SSI). If you are appealing a denial, they may ask for letters from your doctor explaining why you cannot work, or statements from people who know your daily limitations.

What to do if you are unsure what to send

Do not guess. Call your local Social Security office and ask your case worker directly what documents they need. If you do not have a case worker assigned yet, call the main number (1-800-772-1213) and explain that you are in the middle of an SSDI case and need to know what to send. They can tell you over the phone or send you a written list.

If your most recent letter from Social Security lists required documents, follow that list exactly. If you have documents that were not requested but seem relevant (like a letter from your employer about why you had to stop working), you can send them anyway — extra information rarely hurts, though it may add time to processing.

Tracking what you sent and following up

Keep a written log of every document you mail or upload, including the date sent, what it was, and how many pages. If you mailed it, note the date you put it in the mail. If you uploaded it, take a screenshot of the confirmation. This record protects you if Social Security says they never received something.

Wait at least two weeks after mailing before you follow up. If you uploaded through your account, you can check within a few days to see if it appears in your file. If documents do not show up after reasonable time has passed, call your local office and reference your log. They can search their records and tell you whether the file arrived.

Frequently Asked Questions

Can I email documents to Social Security?

Social Security does not accept email for document submission. Use your online account, mail, or fax instead. Email is not secure enough for sensitive medical and financial information, which is why the agency does not offer it as an option.

What if I do not have a case file number yet?

If you have not yet filed for SSDI, you do not have a case file number. Call 1-800-772-1213 or visit your local office to start your case first. Once you file, you will receive a number. If you are sending documents before your first appointment, write your name and date of birth clearly on everything.

Do I need to send original documents or can I send copies?

Copies are fine. Social Security does not need the originals. Make sure copies are clear and complete — if pages are cut off or too dark to read, they may ask you to resend them. Keep your originals for your own records.

How long does it take Social Security to review documents after I send them?

Mail typically takes 2 to 4 weeks to be added to your file after it arrives at the office. Documents uploaded through your account appear within hours. After documents are in your file, it may take several more weeks for a decision maker to review them, depending on how busy your local office is.

What if I send documents but then realize I made a mistake or left something out?

Send a follow-up letter or upload with a note explaining the correction. Include your case file number and reference the original document. Social Security will add the new information to your file. It is better to send a correction than to let an error stand.