Applying for Social Security Disability Insurance (SSDI) as an adult in Massachusetts follows the same federal process used across every state — but knowing exactly how that process works, and what Massachusetts-specific agencies are involved, can make a real difference in how prepared you are when you start.
SSDI is administered by the Social Security Administration (SSA), a federal agency. That means the rules, eligibility criteria, and application process are the same whether you live in Boston, Springfield, or anywhere else in the country.
However, once SSA receives your application, it gets forwarded to your state's Disability Determination Services (DDS) office for medical review. In Massachusetts, that agency is the Massachusetts Rehabilitation Commission DDS. Their job is to evaluate your medical records and determine whether your condition meets SSA's definition of disability. SSA makes the final call, but DDS does the clinical groundwork.
The most straightforward way to apply is through the SSA's official website at ssa.gov. The online application for SSDI (not SSI — more on that distinction below) is available 24 hours a day and typically takes 30 to 60 minutes to complete, depending on how much work history and medical information you have on hand.
Before you start, gather:
You can save your application and return to it later if you need more time. Once submitted, SSA will mail you a confirmation with a receipt number.
📋 You can also apply by calling SSA at 1-800-772-1213 or by visiting a local Social Security field office in Massachusetts, but the online route is typically the fastest way to get your application into the system.
Many people use these terms interchangeably — they are two separate programs.
| Feature | SSDI | SSI |
|---|---|---|
| Based on | Work history and credits | Financial need |
| Income/asset limits | No strict asset test | Strict income and asset limits |
| Medicare eligibility | Yes, after 24-month waiting period | Medicaid (not Medicare initially) |
| Funded by | Payroll taxes (FICA) | General federal revenue |
To qualify for SSDI, you must have earned enough work credits through jobs where you paid Social Security taxes. In general, you need 40 credits, with 20 earned in the last 10 years — though younger workers may qualify with fewer. SSI has no work credit requirement but imposes strict financial limits. Some people qualify for both programs simultaneously, which is called concurrent eligibility.
SSA uses a five-step sequential evaluation to decide every SSDI claim:
Your RFC is a formal assessment of what you can still do physically and mentally despite your impairment. It plays a central role in steps 4 and 5. Older applicants often have more favorable outcomes at step 5 because SSA's rules acknowledge that retraining for new work becomes harder with age.
After your Massachusetts DDS office completes its review, SSA issues an initial determination — typically within three to six months, though timelines vary.
If you're denied, you have the right to appeal. The appeal stages are:
Many claims that are denied at the initial stage are approved at the ALJ hearing stage, though this varies considerably based on the medical evidence, the specific impairments involved, and how well the claim is documented.
Your established onset date (EOD) — the date SSA determines your disability began — affects your back pay. SSDI has a five-month waiting period before benefits begin. Back pay can cover the months between your onset date (minus that waiting period) and the date SSA approves your claim. For claims that take a year or more to resolve, that back pay amount can be substantial.
Once approved for SSDI, you'll wait 24 months from your entitlement date before Medicare coverage begins. During that period, Massachusetts residents may be able to access MassHealth (Medicaid) as a bridge, depending on their income and household situation.
If you eventually want to return to work, SSA offers structured programs including the Trial Work Period, the Extended Period of Eligibility, and the Ticket to Work program — all designed to let you test your ability to work without immediately losing your benefits.
The federal rules described here apply to every adult SSDI applicant in Massachusetts. But how those rules apply to your specific situation — your medical records, your work history, your age, and the severity of your condition — is where the general picture ends and your individual claim begins.
