If a medical condition has left you unable to work, you may be entitled to financial support through Social Security disability benefits. But many people don’t realize there are actually two different programs: Social Security Disability Insurance (SSDI) and Supplemental Security Income (SSI). Understanding the difference between these programs is critical because you might qualify for one, both, or neither depending on your work history and financial situation.
At Weigand Law, Attorney Blair Weigand has been helping Massachusetts residents navigate the Social Security disability system for more than 35 years. This guide will help you understand which program applies to your situation and what you need to know to protect your rights.
SSDI: Disability Insurance You’ve Earned Through Work
Social Security Disability Insurance (SSDI) is exactly what it sounds like: insurance. Just like car insurance or homeowner’s insurance, you pay premiums while you’re working, and the insurance pays out if something goes wrong. With SSDI, those premiums come out of your paycheck in the form of Social Security taxes, and the benefit pays out if you become disabled and can’t work.
Who Qualifies for SSDI?
To qualify for SSDI, you must meet two requirements: a medical requirement and a work history requirement.
On the work history side, you must have earned enough “work credits” through Social Security-covered employment. You earn work credits based on your annual earnings. In 2026, you earn one credit for every $1,890 in wages or self-employment income, up to a maximum of four credits per year. This means you need to earn $7,560 in 2026 to get all four credits for the year.
Generally, you need 40 total work credits to qualify for SSDI, with 20 of those credits earned in the 10 years immediately before you became disabled. Since you can earn a maximum of four credits per year, this typically means you need to have worked at least 10 years total, with at least 5 of those years in the decade before your disability began.
There are exceptions for younger workers who become disabled before they’ve had time to build up 40 credits. If you’re under 24, you may qualify with as few as 6 credits earned in the 3 years before your disability. If you’re between 24 and 31, you generally need credits for half the time between age 21 and when you became disabled.
On the medical side, the Social Security Administration (SSA) must determine that your condition prevents you from engaging in “substantial gainful activity” and is expected to last at least 12 months or result in death. In 2026, substantial gainful activity means earning more than $1,690 per month for non-blind individuals.
How Much Does SSDI Pay?
SSDI benefits are based on your lifetime average earnings covered by Social Security. The average SSDI payment in 2026 is approximately $1,630 per month, though your actual benefit could be higher or lower depending on your work history. There is no asset limit for SSDI because you earned this benefit through your work.
After receiving SSDI benefits for 24 months, you automatically become eligible for Medicare, regardless of your age.
SSI: Need-Based Assistance for Those With Limited Resources
Supplemental Security Income (SSI) is fundamentally different from SSDI. SSI is a need-based program funded by general tax revenues, not Social Security taxes. It provides financial assistance to people who are disabled, blind, or over age 65 and have very limited income and resources.
Who Qualifies for SSI?
The critical difference with SSI is that you don’t need any work history to qualify. SSI is available to people who have never worked, people who didn’t work long enough to qualify for SSDI, and people whose SSDI benefits are very low.
To qualify for SSI in 2026, you must meet strict financial limits. Your countable income must be below federal limits, and your resources (assets) must be less than $2,000 for an individual or $3,000 for a couple. Some assets don’t count, including your primary home, one vehicle, and certain personal belongings.
The medical requirement for SSI is the same as for SSDI: you must be unable to engage in substantial gainful activity due to a medical condition expected to last at least 12 months or result in death.
How Much Does SSI Pay?
The maximum federal SSI benefit in 2026 is $994 per month for an individual and $1,491 per month for a couple. However, your actual payment may be lower depending on your living arrangement and other income.
Massachusetts provides a small State Supplement Program (SSP) payment to some SSI recipients, which comes as a separate check from the Commonwealth. SSI recipients automatically qualify for MassHealth (Medicaid) from the first month of eligibility, which is often more valuable than the cash benefit itself.
Can You Get Both SSDI and SSI?
Yes. If you qualify for SSDI but your benefit amount is very low, you may also qualify for SSI to bring your total monthly income up to the SSI maximum. This is called “concurrent benefits.” You would receive separate payments from each program.
How to Apply in Massachusetts
You can apply for SSDI, SSI, or both programs using the same application. There are three ways to apply:
- Online: Visit www.ssa.gov to complete your application 24/7. You can save your progress and return later.
- By Phone: Call 1-800-772-1213 (TTY 1-800-325-0778) to complete an application over the phone or schedule an in-person appointment.
- In Person: Visit one of Massachusetts’ Social Security field offices, including locations in Boston, Worcester, Springfield, Lowell, Brockton, and other cities. Appointments are strongly recommended.
In Massachusetts, your application is initially reviewed by the Massachusetts Rehabilitation Commission’s Disability Determination Services (DDS) division, which makes disability determinations for the SSA. Initial decisions typically take 3 to 6 months, though complex cases may take longer.
What If You’re Denied?
Most SSDI and SSI applications are denied at the initial level. In Massachusetts, approval rates at the initial application stage are typically around 35-40%. A denial is not the end of your case.
You have 60 days from the date you receive your denial letter (plus 5 days for mailing) to file an appeal. There are four levels of appeal:
1. Reconsideration: A different DDS examiner reviews your entire file along with any new medical evidence you submit. Reconsideration approval rates are low (often under 15%), but this step is required before you can request a hearing.
2. Administrative Law Judge (ALJ) Hearing: This is where most successful appeals are won. You appear before an ALJ at a hearing office (often in Boston, Springfield, or Worcester), present testimony, submit updated medical evidence, and can bring witnesses. ALJ approval rates in Massachusetts average 56-58%, and represented claimants consistently win at higher rates than those without attorneys.
3. Appeals Council Review: If the ALJ denies your claim, you can request review by the SSA’s Appeals Council in Virginia. The Council may affirm the decision, reverse it, or send it back for a new hearing.
4. Federal District Court: As a final option, you can file a civil action in the U.S. District Court for the District of Massachusetts. This requires an attorney experienced in federal Social Security litigation.
The 60-day deadline to appeal is strict. Missing it typically means you’ll have to start over with a new application, losing any potential retroactive benefits tied to your original filing date.
Critical Mistakes to Avoid
Don’t Wait Too Long to Apply: Benefits can only be paid retroactively to a certain point. The sooner you apply after becoming disabled, the more back pay you may be entitled to if approved.
Don’t Give Up After an Initial Denial: The majority of initial applications are denied. Many of these denials are overturned on appeal, especially at the ALJ hearing level.
Don’t Assume You Can’t Get Help: Most SSDI and SSI attorneys work on a contingency fee basis. Federal law caps attorney fees at 25% of your back pay, not to exceed $7,200 for SSDI cases. You pay nothing unless you win. Low-income applicants may also qualify for free representation through organizations like Disability Law Center or Greater Boston Legal Services.
Don’t Stop Medical Treatment: Continuing to see your doctors and following their treatment recommendations is critical. Gaps in treatment can be used against you, with the SSA arguing that if you’re not treating, you must not be that disabled.
Don’t Exaggerate or Minimize Your Symptoms: Be honest with your doctors and with the SSA about what you can and cannot do. Exaggerating can destroy your credibility, while minimizing may make it seem like you’re not that limited.
The Bottom Line
SSDI and SSI serve different purposes and have different eligibility requirements. SSDI is for people who have worked and paid into the Social Security system but can no longer work due to disability. SSI is for people who are disabled and have very limited income and resources, regardless of work history.
Both programs use the same medical standard for disability, and both provide critical financial support to people who cannot work. If you’ve been denied or are unsure which program applies to you, don’t navigate this complex system alone.
Attorney Blair Weigand has been representing disabled individuals in Massachusetts for more than 35 years. We understand how overwhelming the Social Security disability process can be, and we’re here to help. Contact Weigand Law today for a free consultation at 508-775-3118.

Attorney Blair E. Weigand — Helping those with legal questions for 35 years and counting.