How to Apply for Social Security Disability: SSDI and SSI

To apply for Social Security disability, decide which program fits your situation, gather your medical and work records, and file online at ssa.gov, by phone at 1-800-772-1213, or in person at a local Social Security office. The Social Security Administration runs two disability programs: Social Security Disability Insurance (SSDI) for workers who have paid into the system through payroll taxes, and Supplemental Security Income (SSI) for people with limited income and resources.1Social Security Administration. Part I – General Information – Section: Program Description Both require proof that a physical or mental impairment prevents you from working and is expected to last at least twelve continuous months or result in death.

Figure Out Which Program You’re Applying For

SSDI and SSI have different eligibility rules, and some people qualify for both. Knowing which applies changes what documents you’ll need.

SSDI: Based on Work History

SSDI is funded through payroll taxes, so you qualify only if you have earned enough work credits.2Social Security Administration. Overview of Our Disability Programs In 2026 you earn one credit for every $1,890 in wages or self-employment income, up to four credits per year.3Social Security Administration. How You Earn Credits The number of credits you need depends on your age when the disability began:

  • Under 24: six credits earned in the three years before the disability started.
  • Ages 24 through 30: credits covering half the time between age 21 and when the disability began.
  • Ages 31 through 42: at least 20 credits, with the requirement rising by two credits for roughly every two years of age after 42, up to 40 credits at age 62 or older.

For workers 31 and older, at least 20 of those credits must have been earned in the ten years right before the disability started.3Social Security Administration. How You Earn Credits Adult children disabled before age 22 and disabled widows or widowers may also qualify on a worker’s record.

SSI: Based on Financial Need

SSI has no work-history requirement. To qualify in 2026, your countable resources cannot exceed $2,000 as an individual or $3,000 as a couple.4Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet Resources include cash, bank accounts, and investments, but not your primary home or one vehicle. You must live in one of the 50 states, the District of Columbia, or the Northern Mariana Islands, and you must be a U.S. citizen or meet specific lawful-residency rules.5Social Security Administration. You May Be Able to Get Supplemental Security Income (SSI)

Not all income counts. The first $20 per month of most income is excluded, and for job wages, the first $65 plus half of the rest are also excluded. The maximum federal SSI payment in 2026 is $994 per month for an individual and $1,491 for an eligible couple.6Social Security Administration. SSI Federal Payment Amounts for 2026 Some states add a supplement.

The Earnings Cap That Applies to Both

For either program, you cannot be earning above “substantial gainful activity” (SGA) when you apply. In 2026, SGA is $1,690 per month for most applicants and $2,830 per month for applicants who are statutorily blind.7Social Security Administration. Substantial Gainful Activity Earnings above that limit will generally get your claim denied at the first step regardless of how severe your condition is.

Gather Your Records Before You Start

Having your documents ready before you open the application saves time and cuts down on delays from missing information. SSA publishes a free Adult Disability Starter Kit with a checklist and worksheets to help you organize what you need.8Social Security Administration. Adult Disability Starter Kit Checklist

Personal and Financial

  • Your Social Security number and birth certificate or other proof of birth.
  • Your most recent W-2 forms or self-employment tax returns.9Social Security Administration. Apply Online for Disability Benefits
  • Bank routing and account numbers for direct deposit.
  • Records of any workers’ compensation, public disability, or similar benefits you have filed for or received.
  • Military discharge papers (DD-214) if you served before 1968.
  • Names, Social Security numbers, and dates of birth for current and former spouses, plus marriage and divorce dates.

Medical

Medical evidence is the most important part of your application. Compile the names, addresses, phone numbers, patient ID numbers, and treatment dates for every doctor, therapist, hospital, and clinic that has treated you.9Social Security Administration. Apply Online for Disability Benefits List every medication you take and which provider prescribed it. If you have copies of lab results, imaging studies, or treatment notes at home, put those in the same folder.

Work

The application asks you to list up to five jobs you held in the five years before you became unable to work, along with dates, hours per day or week, and earnings. For each job, be specific about the physical and mental demands: how much you lifted, how long you stood or walked, whether the work required detailed instructions or interaction with others. SSA uses this to decide whether you can still do any of your past work. Although the form focuses on the last five years, SSA can consider work you performed in the past fifteen years during its vocational analysis.10Social Security Administration. Code of Federal Regulations 404-1560

Three Ways to File

You can submit your application by any of these methods:

  • Online. SSA’s portal lets you complete the application at your own pace, save progress, and return later. After submission you get a confirmation number for tracking.9Social Security Administration. Apply Online for Disability Benefits
  • By phone. Call 1-800-772-1213, Monday through Friday, 7 a.m. to 7 p.m., to schedule a phone interview with a claims representative who walks you through the application.
  • In person. Visit your local Social Security office; call ahead to book an appointment. Ask for a date-stamped receipt to confirm your submission date.

If you send documents through the mail, use certified mail with return receipt so you have proof the agency received your packet. SSA sends a written acknowledgment shortly after your application is logged in its system.

What the Application Forms Ask

The core document for an SSDI claim is Form SSA-16, the Application for Disability Insurance Benefits.11Social Security Administration. Application for Disability Insurance Benefits Form SSA-16 With it, you complete a Disability Report (Form SSA-3368), where you describe your medical conditions and how they limit you, and you sign a medical release authorizing SSA to request records from your providers. All of the forms are available on the SSA website or at your local field office.

When you fill out the Disability Report, describe symptoms in concrete terms. Instead of “I have back pain,” write “I cannot sit for more than twenty minutes without needing to lie down, and I cannot lift anything heavier than a gallon of milk.” Detail like that helps the reviewer assess your residual functional capacity. Make sure the dates, provider names, and treatment details you list line up with what your providers will send. Inconsistencies slow the review and can raise questions about the claim.

Should You Use a Representative

You can appoint an attorney or a non-attorney representative to help with your claim at any stage. Representatives handle paperwork, gather medical evidence, and present your case at hearings. Most work on contingency and are paid only if you win.

Under a standard fee agreement approved by SSA, the representative’s fee cannot exceed the lesser of 25 percent of your past-due benefits or $9,200.12Social Security Administration. Fee Agreements SSA withholds that amount from your back pay and sends it directly to the representative, so you pay nothing upfront. Roughly 63 percent of initial applications are denied, so many applicants bring in a representative before or during the appeals process.

What Happens After You File

Your local Social Security office checks your paperwork and non-medical eligibility, then forwards the file to your state’s Disability Determination Services (DDS), a state agency funded entirely by the federal government. DDS reviews your medical records and may contact you or your doctors for more information. If your existing records are not enough, DDS schedules a consultative examination with an independent doctor at no cost to you.13Social Security Administration. Disability Determination Process Attend it. Skipping the exam can lead to a denial for insufficient evidence.

Initial decisions typically take three to six months. SSA mails a written notice explaining whether the claim was approved or denied and the reasoning behind the decision.

When Payments Start

If your SSDI claim is approved, payments do not begin right away. You must wait five full calendar months from the date SSA sets as the start of your disability, and your first check arrives in the sixth month. If SSA finds your disability began on January 15, the first SSDI payment covers July. The only exception is amyotrophic lateral sclerosis (ALS), which carries no waiting period.14Social Security Administration. Disability Benefits – You’re Approved SSI has no five-month wait, but payments cannot start earlier than the month after you file.

Because the process takes months, you may be owed back pay covering the period between your established disability onset date and the date of approval. SSDI back pay can reach up to twelve months before the month you filed, as long as you were disabled during that time. SSI does not allow the same retroactive coverage; payments generally start no earlier than the month after you applied.15Social Security Administration. Retroactive Effect of Application

If You’re Denied

A denial is not the end. You must request each appeal within 60 days of receiving the denial notice, and SSA assumes you received the notice five days after the date printed on it.16Social Security Administration. Understanding Supplemental Security Income Appeals Process The first level is reconsideration, where a different DDS examiner reviews your entire file, including any new medical evidence. You can file online or by submitting Form SSA-561-U2. Historical approval rates at this stage are around 13 percent, so add every piece of new evidence you can before filing.

If reconsideration is denied, you can request a hearing before an administrative law judge (ALJ). This is where most successful appeals are decided; historically, about 58 percent of claimants who reach this stage are approved.17Social Security Administration. Outcomes of Applications for Disability Benefits SSA sends a scheduling notice at least 75 days before the hearing date, and any new written evidence must be submitted at least five business days beforehand.18Social Security Administration. SSA’s Hearing Process, OHO The ALJ questions you under oath and may call medical or vocational experts; you or your representative can question witnesses and present arguments. After the hearing the ALJ issues a written decision by mail.

If the ALJ denies the claim, you can ask the Appeals Council to review the decision, and if that is denied you can file a lawsuit in federal district court.