The short answer
You can apply for Social Security Disability Insurance online at ssa.gov, by phone at 1-800-772-1213, or in person at a Social Security office. Apply as soon as you become unable to work because of a condition expected to last at least 12 months or to result in death; there is no benefit to waiting. Before you start, gather the names and contact details of every doctor, clinic and hospital that has treated you, your medications and test dates, the jobs you held in the five years before you stopped working, and your bank details for direct deposit; Social Security's Adult Disability Starter Kit has a checklist. You do not have to collect or pay for medical records, since Social Security requests them. A state Disability Determination Services office makes the medical decision, sometimes after an exam it pays for. If you are denied, you have 60 days to ask for reconsideration, and then for a hearing before an administrative law judge.
Step 1: Check that SSDI fits your situation
SSDI is insurance you earned by working. It pays if you have enough recent work credits and a condition that keeps you from substantial work, which in 2026 means earnings above $1,690 a month, or $2,830 if you are blind. If you have not worked enough, or not recently, SSI may be the program instead, and you can apply for both at once; our guide to SSI and SSDI explains the difference, and the guide to work credits shows how many you need.
The medical test is strict: the condition must have lasted or be expected to last at least a year, or to result in death, and it must stop you from doing your past work and any other work suited to your age, education and experience. Our guides to how Social Security decides disability and which conditions qualify cover the rules.
Step 2: Gather what the application asks for
Social Security's Adult Disability Starter Kit includes a checklist and a worksheet to fill in before you apply. Having the details in front of you is what makes the application go quickly.
- Personal details: your Social Security number and birth details, and the names and birth dates of a current spouse and any former spouses.
- Medical information: the name, address and phone number of every doctor, clinic and hospital that treated you, the dates you were seen, patient ID numbers, your medications and the tests you had and when.
- Work history: the jobs you held in the five years before you became unable to work, with dates, hours and pay, plus your education and any job training.
- Other claims: details of any workers' compensation or other disability benefits.
- Contacts: someone who knows about your conditions and can help with your claim.
- Bank information for direct deposit.
Gather any medical records you already have, but you do not need to request or pay for ones you do not. Social Security asks your providers for them.
Step 3: File the application
The online application, at ssa.gov, is the most convenient route for most people. It takes the application itself, the Adult Disability Report, which asks about your conditions, treatment and work, and an authorization that lets Social Security get your medical records. You can save your work and come back, and you receive a confirmation number at the end.
If you prefer, call 1-800-772-1213 to apply by phone or to make an appointment at a local office. Calling and telling Social Security that you intend to apply can protect your filing date, as long as you complete the application within the time Social Security gives you, generally six months. Someone else, such as a family member or caseworker, can also help you apply.
Step 4: What happens after you apply
Your local Social Security office first checks the non-medical rules, such as your work credits, earnings and any other benefits. It then sends the file to your state's Disability Determination Services, which gathers your medical records and decides whether you meet the definition of disability.
That office may ask you to fill out a function report about your daily activities, or to see a doctor it chooses for a consultative examination, at no cost to you. Go to any exam it schedules: missing one is a common reason for denial. Some conditions on the Compassionate Allowances list are decided much faster. You can check your claim's progress in your my Social Security account; our guide to creating the account explains how.
While you wait for a decision
A claim can take months, and what you do in that time feeds the decision. Tell Social Security about any new doctor, hospital stay or test, so the examiner sees the latest evidence, and answer every letter or form by its deadline. Keep a short diary of symptoms and of what you could not do on bad days; it helps you answer the questions on function reports and, if it comes to it, at a hearing.
Money is often tight while you wait. Other programs do not have to wait for the decision: SNAP, Medicaid in many states and, if you qualify, SSI can all be applied for now. Our guides to SNAP and Medicaid eligibility explain the limits.
Step 5: If you are approved
SSDI has a five-month waiting period: benefits begin with the sixth full month after the date Social Security finds your disability began. Because claims take months, most people approved are owed back pay, and you can be paid for up to 12 months before the month you applied if you were already disabled then. Our guide to SSDI back pay explains how the amounts add up.
Medicare follows after 24 months of disability benefits, and some family members can be paid on your record. If your condition improves, Social Security reviews your case periodically, and work incentives let you test a return to work without losing benefits right away; see our guide to working while on SSDI.
Step 6: If you are denied
Many first applications are denied, often because the medical evidence was thin. You have 60 days from receiving the decision to ask for reconsideration, and Social Security assumes you received the letter five days after its date. If reconsideration is denied, you have another 60 days to ask for a hearing before an administrative law judge, where you can explain your situation in person or by video. After that come the Appeals Council and federal court.
Appeal rather than starting over: a new application usually ends up facing the same evidence, and appealing keeps your original filing date for back pay. Many people hire a representative at the hearing stage. Fees are paid only if you win, generally 25 percent of past-due benefits up to a cap of $9,200, and must be approved by Social Security. Our guide to appealing a benefits decision covers the process.
Mistakes that slow a claim
- Leaving out a condition, such as depression or the side effects of treatment, because it seems secondary.
- Listing providers without dates or addresses, which delays the request for records.
- Stopping treatment, which leaves gaps in the record that the examiner has to interpret.
- Working above the earnings limit while the claim is pending.
- Missing a deadline or an exam. Write down every date Social Security gives you.
Common questions
Can I apply for SSDI online?
Yes. Most people can apply on ssa.gov, including the Adult Disability Report and the medical release. You can also apply by phone at 1-800-772-1213 or at a local office.
Do I need to send my medical records with my SSDI application?
No. List every provider, with dates and contact details, and Social Security requests the records. Send any you already have, but you do not need to pay for copies.
Should I reapply or appeal if my SSDI claim is denied?
Usually appeal. A reconsideration request within 60 days keeps your original filing date, which protects back pay, and leads to a hearing if needed.
Can I apply for SSI and SSDI at the same time?
Yes. The same application can be considered for both, and if your income and resources are low, SSI can be paid while you wait out SSDI's five-month waiting period or alongside a small SSDI benefit.
Official sources
File now, refine later
If a condition has stopped you from working and is expected to last, start the application this week; you can add medical details as you go, and the filing date is what protects your benefits. Before you begin, the SSDI calculator checks whether your work record meets the insured-status test and estimates the payment.
