Start by gathering your medical records and work history

Before you file for Social Security Disability Insurance (SSDI), you need to collect the documents that Social Security will ask for. The process itself is straightforward, but the supporting materials take time to gather—sometimes weeks. Starting now means you won't be delayed once you're ready to submit.

You will need medical records from every doctor, hospital, or mental health provider who has treated your condition in the past three to five years. This includes office visit notes, test results, imaging reports, and medication lists. If your condition is recent, start with the most recent records and work backward. If you have been treated for years, focus on the records that show your condition is severe and ongoing.

You will also need a complete work history: the names of employers, the dates you worked for each one, and the type of work you did. Social Security uses this to calculate how much you might receive and to confirm you have worked long enough to be covered by SSDI. If you are self-employed, gather tax returns from the past two years.

Key Takeaways

  • Collect medical records from all providers who have treated your condition, going back at least three years, before you start the process.
  • Gather your complete work history with employer names, dates, and job titles, because Social Security needs this to verify your coverage.
  • Request records directly from doctors' offices and hospitals rather than waiting for them to arrive on their own—this usually takes two to four weeks.
  • Have your birth certificate, Social Security card, and proof of citizenship or legal residency ready, as you will need these during the process.
  • Write down a timeline of when your condition became severe enough that you could no longer work, because Social Security will ask for this specific date.

Request your medical records now, not during the process

Medical records are the slowest part of the process. Doctors' offices and hospitals do not send records automatically—you have to request them. Each office may take two to four weeks to gather and mail your records, and some charge a copying fee (usually $0.25 to $1.00 per page).

Call or visit each provider's records department and ask for a complete copy of your medical file. Be specific: ask for office visit notes, lab results, imaging reports (X-rays, MRIs, CT scans), and any letters from specialists. Tell them you need the records for a disability claim and ask how long it will take. Some offices will email records faster than they mail them—ask about this option.

Keep a list of which offices you have requested records from and when. Follow up after two weeks if you have not received them. Once records arrive, organize them by date so you can see the timeline of your condition and treatment clearly.

Document your work history and earnings

Social Security needs to know that you have worked long enough to be covered by SSDI. You must have earned a certain amount in Social Security-covered work in recent years—the exact requirement depends on your age, but most people need to have worked about five of the past ten years.

Write down every job you have held in the past 15 years, including the employer name, your job title, the dates you started and stopped, and how much you earned. If you have a Social Security statement (you can create one at ssa.gov), it will show your earnings history and confirm what Social Security has on record. Check this against your own records to make sure it is accurate. If there are gaps or errors, contact Social Security before you file so they can correct them.

If you are self-employed or have had cash income, gather your tax returns for the past two years. Social Security uses these to verify your earnings and determine your benefit amount.

Identify your onset date—when you could no longer work

Social Security will ask you to name a specific date when your condition became severe enough that you could no longer work. This is called your onset date, and it matters because it determines when your benefits can start. You cannot claim SSDI for work you did after this date.

Think through the timeline: When did your symptoms become worse? When did you stop working or reduce your hours? When did a doctor first diagnose or document the severity of your condition? Write down the date that makes the most sense—usually the date you stopped working or the date a medical event (like a surgery, hospitalization, or diagnosis) made work impossible.

Be honest about this date. If you continued working part-time or tried to work after your condition worsened, that is fine—Social Security will ask about it. But pick the date when your condition actually prevented you from working, not the date you formally quit.

Verify your citizenship or legal residency status

You must be a U.S. citizen or a lawful permanent resident (green card holder) to receive SSDI. Some other immigration statuses may also may have access to, but citizenship or permanent residency is the most common path.

Have your birth certificate or passport ready. If you are a permanent resident, have your green card or I-551 document. If you were born outside the United States and naturalized as a citizen, have your naturalization certificate. Social Security will ask to see one of these documents during the process process.

If you are not yet a permanent resident or citizen, contact an immigration attorney or a legal aid organization before you file. SSDI rules for non-citizens are complex and depend on your specific status.

Understand how SSDI affects other benefits you receive

If you are already receiving other government benefits—such as Supplemental Security Income (SSI), unemployment benefits, workers' compensation, or veterans' benefits—SSDI may change those payments. Some benefits reduce when you start receiving SSDI; others do not.

Before you file, call the agency that manages each benefit you receive and ask how SSDI will affect it. For example, if you receive workers' compensation, your SSDI payment may be reduced by a portion of that amount. If you receive SSI, SSDI will likely replace it rather than add to it. Understanding these interactions now prevents surprises later.

If you have dependents (a spouse or children under 19 who are in school), they may be able to receive benefits on your SSDI record once you are approved. Ask Social Security about this during your process.

Organize your documents in one place

Create a folder—physical or digital—and put everything in it: medical records, work history notes, your onset date, copies of your birth certificate and Social Security card, proof of citizenship, and a list of all providers you have seen. When you are ready to file, you will have everything in one spot and can move through the process quickly.

Make copies of important documents like your birth certificate and Social Security card. Keep the originals in a safe place. You will not need to mail originals to Social Security, but you may need to show them in person if you file at a local office.

Frequently Asked Questions

How far back should my medical records go?

Request records from at least the past three years, or longer if your condition has been treated for more than three years. Social Security wants to see a pattern of ongoing treatment and how your condition has progressed. If your condition is recent, start with the earliest treatment and work forward.

What if I do not have a birth certificate?

You can still file for SSDI, but you will need another form of proof of citizenship or legal residency. A passport, naturalization certificate, or state ID may work. Contact your local Social Security office to ask which documents they will accept before you file.

Do I need to have a job lined up to show I cannot work?

No. Social Security does not require you to have tried to work recently or to have a job offer. You only need to show that your condition prevents you from doing substantial work—meaning work that earns more than a certain amount per month (the limit changes yearly). Your medical records and your own statement about your limitations are enough.

Can I file for SSDI while I am still working part-time?

Yes, but your earnings matter. If you earn more than the monthly limit for substantial work, Social Security may deny your claim or delay approval. If you are working part-time and earning less than the limit, you can file. Be honest about your current work and earnings on the process.

What if my medical records show I have improved since I stopped working?

Include all records, including ones that show improvement. Social Security looks at your overall medical history and your current condition. If you improved after stopping work, that is actually common—rest and treatment often help. What matters is whether you can do substantial work now, not whether you have improved somewhat.