SSI (Supplemental Security Income) and SSDI (Social Security Disability Insurance) are federal disability benefit programs that provide monthly income to people who cannot work because of a disabling condition. Millions of New Yorkers rely on these programs, yet the application process is notoriously difficult — most initial applications are denied, and getting benefits often requires persistence through multiple levels of appeal. This guide explains the difference between the programs, who qualifies, how to apply, and what to do when you are denied.
SSI vs. SSDI: What’s the Difference?
- SSI (Supplemental Security Income) is based on financial need. It provides monthly income to people with disabilities who have limited income and resources, regardless of their work history. Children with disabilities can also receive SSI. The federal benefit rate is set annually; New York State supplements the federal amount.
- SSDI (Social Security Disability Insurance) is based on work history. It provides benefits to people who have worked and paid Social Security taxes and who now cannot work due to a disability. The benefit amount depends on your earnings record. You must have enough “work credits” to qualify.
Some people qualify for both simultaneously — called “concurrent benefits.” If you have limited work history and limited income, you may get SSDI based on your work record plus SSI to top it up to the minimum benefit level.
The Definition of Disability
Both SSI and SSDI use the same definition of disability: you must have a medically determinable physical or mental impairment that:
- Has lasted or is expected to last at least 12 months, OR is expected to result in death
- Prevents you from doing any substantial gainful activity (SGA) — not just your previous job, but any job that exists in significant numbers in the national economy
This is a strict standard. Partial disability or short-term disability do not qualify. The Social Security Administration (SSA) maintains a “Listing of Impairments” — conditions that automatically qualify if they meet specific severity criteria. Conditions not on the listing can still qualify if they are severe enough to prevent all work.
How to Apply
Apply Online (SSDI and some SSI)
Apply for SSDI online at ssa.gov/benefits/disability/. Online applications for SSDI are comprehensive and take 1–2 hours. SSI online applications are also available for some applicants at ssa.gov.
Apply by Phone
Call 1-800-772-1213 (TTY: 1-800-325-0778) Monday–Friday 8am–7pm to apply by phone or schedule an in-person appointment. Phone applications are handled by SSA representatives who complete the forms with you.
Apply In Person at an SSA Office
NYC has multiple Social Security offices. Find the nearest one at ssa.gov/locator/. In-person appointments are recommended for complex cases or when you need help gathering documentation.
What Documents You Need
- Social Security card (or number)
- Birth certificate or proof of age
- Proof of citizenship or immigration status (for SSI)
- Proof of income and resources (bank statements, investment accounts) for SSI
- Work history: names, addresses, and dates of employment for the past 15 years (SSDI)
- Medical records: names, addresses, phone numbers, and dates of treatment for all doctors, hospitals, and clinics
- A list of all medications and dosages
- Medical test results if you have them
The Five-Step Evaluation Process
SSA evaluates every disability application using a five-step sequential process:
- Are you working? If you are doing substantial gainful activity, you are not disabled under SSA’s rules.
- Is your condition severe? It must significantly limit your ability to do basic work activities.
- Does your condition meet a Listing? If your impairment meets or equals an SSA Listing, you are automatically approved.
- Can you do your past work? If your impairment does not prevent you from doing past work, you are not disabled.
- Can you do any other work? Considering your age, education, and work experience, SSA determines if you can do any work that exists in significant numbers nationally.
Most Initial Applications Are Denied — Appeal Immediately
Most initial SSI and SSDI applications are denied. This is not the end. The appeal process has four levels:
- Reconsideration: A different SSA examiner reviews the decision. File within 60 days of the denial. Most reconsiderations are also denied.
- Administrative Law Judge (ALJ) Hearing: You appear before an ALJ who reviews the evidence and hears testimony. This is where many applicants succeed — especially with legal representation. File within 60 days of the reconsideration denial.
- Appeals Council: Review of the ALJ decision. File within 60 days of the ALJ decision.
- Federal Court: Final appeal in U.S. District Court. File within 60 days of the Appeals Council decision.
The ALJ hearing is the most important level. Having an attorney at the ALJ hearing significantly improves your chances. Most disability attorneys work on contingency — they only get paid if you win, taking a percentage of your back pay (capped by federal law). You pay nothing upfront.
While You Wait: Other Benefits
SSI and SSDI applications take months to years. While waiting:
- Apply for NYC Public Assistance (cash assistance) through HRA — you may qualify while your SSI/SSDI is pending
- Apply for Medicaid — SSI recipients are automatically enrolled; applicants may qualify during the waiting period
- Apply for SNAP food benefits
- If you receive SSDI and have waited 24 months, you become eligible for Medicare
Free Help Applying for SSI/SSDI in NYC
- Legal Aid Society: (212) 577-3300 — free SSI/SSDI representation for low-income applicants
- NYLAG — Social Security Unit: (212) 613-5000 — free help with applications and appeals
- Disability Rights Advocates: dralegal.org
- SSA National Helpline: 1-800-772-1213
- Benefits.gov: benefits.gov — federal benefits screening tool
Frequently Asked Questions
I was denied SSI/SSDI. Should I reapply or appeal?
Always appeal rather than reapply. If you reapply, you start the process over and lose the potential back pay that accumulates from your original application date. File a request for reconsideration within 60 days of the denial.
How long does SSI/SSDI take?
Initial decisions typically take 3–6 months. If denied and appealed, the full process including an ALJ hearing can take 1–3 years in some cases. Apply as early as possible — your application date determines your back pay if approved.
Can I work while receiving SSI or SSDI?
Limited work is possible under both programs. SSI has a work incentive called “earned income exclusion” that allows some earnings without losing benefits. SSDI has a “trial work period” allowing 9 months of full work before benefits stop. The rules are complex — consult SSA before starting work.
Does receiving SSI or SSDI affect my immigration case?
SSI receipt may be considered under the federal public charge rule for certain immigration applications. SSDI receipt is generally not considered a public charge factor because it is based on work contributions. Consult an immigration attorney before applying if you have immigration proceedings pending.
