The Basics of Social Security Disability Insurance (SSDI)

Takeaways

• Social Security Disability Insurance (SSDI) provides monetary assistance to individuals with disabilities who have paid into the Social Security system and meet the government’s definition of “disabled.”
• Individuals can qualify for SSDI on a parent’s work record if the disability manifested before age 22, they are completely disabled, and the parent meets specific Social Security contribution requirements.
• SSDI recipients qualify for Medicare but typically must wait two years after SSDI eligibility begins.
• The Ticket to Work program allows recipients to try working without immediately losing benefits, offering a trial work period before benefits are impacted.

Social Security Disability Insurance (SSDI) is one of the major federal programs that provides monetary assistance to people with disabilities. Unlike some other programs for people with disabilities (such as Supplemental Security Income (SSI), an SSDI recipient can qualify for benefits no matter how much money they have and, in many cases, no matter how much they earn. As of 2024, more than 7 million people across the United States were receiving SSDI benefits.

Although the lack of strict financial standards makes SSDI benefits easier to manage once they are obtained, not everyone with a disability can qualify for SSDI, so it pays to know the rules before filing an application for benefits.

Quarters + Disability = Benefits

SSDI is available to any worker who has a disability as defined by the federal government and who has paid into the Social Security system for a specified amount of time, depending on their age. To qualify as disabled, an SSDI applicant must show that they are almost completely unable to work at any job whatsoever.

The applicant must have a physical or mental impairment that makes it impossible for them to engage in any “substantial gainful activity,” and this impairment must be expected to last for longer than one year or to result in death. If an applicant is able to engage in substantial gainful activity, then they will typically not be eligible for SSDI.

The Social Security Administration generally defines substantial gainful activity as being able to earn more than $1,620 a month (in 2025, for nonblind individuals) from working. (For blind individuals, it is $2,700 per month.) This income restriction applies only to income earned by working; an applicant can receive any amount of unearned income from any source other than working and still qualify for SSDI. How much the SSDI benefit will be depends on the beneficiary’s income before they became disabled, the size of their family, and the amount they paid into the Social Security system.

Qualifying on a Parent’s Work Record

Most people who sustain a serious disability before turning 22 are not able to assemble the necessary work record to qualify for SSDI on their own, but they may qualify for benefits on a parent’s work record instead.

To qualify for SSDI in these situations, an applicant’s disability must have manifested itself before the applicant turned 22, the applicant must be completely disabled, their parent must have paid into the Social Security system for the required number of quarters, and the parent must be either dead, permanently disabled, or receiving Social Security retirement benefits.

In these cases, the person with the disability receives an SSDI benefit in addition to the Social Security benefits that their parent is collecting. (See a detailed discussion of adult children with disabilities and SSI.)

SSDI Beneficiaries Receive Medicare . . . Eventually

Although most people think of Medicare as health insurance for older Americans, SSDI recipients also qualify for Medicare benefits. Unfortunately, under current federal law almost all SSDI recipients must wait two years from the date that they become eligible for SSDI before they can begin to receive Medicare (this restriction does not apply to people who have ALS or who require dialysis for end-stage renal disease).

If a person with a disability is no longer working, it may be difficult or impossible for them to obtain health insurance during this waiting period, which could lead to life-threatening consequences. Although some SSDI recipients with lower incomes may qualify for Medicaid, a large number of SSDI recipients go without health insurance during this waiting period. Over the years, Congress has attempted to rectify this problem, so far without success.

Restarting Work Does Not Immediately Cause a Loss of Benefits: Ticket to Work

Because SSDI applicants must not be able to engage in substantial gainful activity, many SSDI recipients may be reluctant to move back into the workforce for fear that they will immediately lose their SSDI benefit.

Fortunately, the Social Security Administration offers a program called Ticket to Work that allows an SSDI recipient to begin working again without a loss of benefits. Under the Ticket to Work program, when an SSDI recipient earns more than $1,160 a month (in 2025), they trigger the start of a trial work period, which lasts for five years. During this trial work period, the SSDI recipient can earn more than $1,160 a month for eight more months (and these months need not be consecutive).

Once the SSDI recipient has used up their nine total trial work months, they will not receive an SSDI benefit in any additional month during which they engage in substantial gainful activity (i.e., when they make more than $1,620 a month).

Work With a Special Needs Planning Attorney

Although SSDI may seem complicated, it is actually a fairly easy program to navigate once an applicant is approved because there are no asset limits and a recipient can have unlimited unearned income. An experienced special needs planner near you can guide you through the application process and can help you manage your SSDI benefits so that they do not compromise any other assistance you may receive.

Beyond navigating the SSDI application and management, a special needs planning attorney can provide several other critical services to support individuals with disabilities, such as the following areas:

• Special Needs Trusts. Attorneys can create and manage special needs trusts (SNTs). These trusts allow individuals with disabilities to remain eligible for needs-based government benefits such as Medicaid and SSI while also having funds available to supplement their care and quality of life.
• Guardianship and Conservatorship. In cases where an individual with a disability cannot make decisions for themselves, an attorney can help establish guardianship or conservatorship. This legal process appoints someone to make decisions on behalf of the individual.
• Estate Planning. Special needs planning attorneys can integrate specific provisions into estate plans. These provisions ensure that inheritance or other assets are handled in a way that does not jeopardize the person’s access to government benefits.
• Advocacy. Attorneys can advocate for the rights of individuals with disabilities. This can involve working with government agencies, health care providers, or other entities to ensure that their needs are met and their rights are protected.
• Long-Term Care Planning. Attorneys can help plan for long-term care needs, including identifying appropriate facilities, funding care, and addressing any legal issues that may arise. They may also be able to help navigate complex Medicaid rules, ensuring that an individual qualifies for benefits while protecting their assets to the extent possible under the law.
• Education Planning. Special needs planners may also be able to assist with issues related to special education law and ensure that individuals with disabilities receive the educational services and support they are entitled to.

Related Reading

• What You Need to Know When Applying for SSDI or SSI
• How Are Disability Benefits (SSDI) Calculated?
• Social Security Taxes: Are Disability Benefits Taxable?
• What Is the Americans with Disabilities Act (ADA) and Why Does It Matter?
• Qualify for Disability Benefits on a Parent’s Work Record