The 5-Step Sequential Evaluation: How SSA Decides Every Disability Claim

Every adult disability claim, SSDI or SSI, is decided by the same fixed procedure: the five-step sequential evaluation. It is sequential because the steps run in strict order, and the claim can be granted or denied at several points along the way. Understand these five steps and you understand how your case will actually be decided.

Step 1: Are You Engaging in Substantial Gainful Activity?

The first question is not medical at all, it is about work. If you are working and your countable earnings exceed the substantial gainful activity (SGA) limit ($1,620 per month for non-blind individuals in 2025, a threshold adjusted annually), SSA denies the claim at step one without looking at a single medical record. It does not matter how serious the diagnosis is; earnings above the line are treated as proof you can work at a self-supporting level.

Nuances exist: impairment-related work expenses can be deducted from gross earnings, subsidized work may count for less than its paycheck value, and brief unsuccessful work attempts may be disregarded. If your earnings hover near the limit, these adjustments can decide the step.

Step 2: Is Your Impairment Severe?

Next, SSA asks whether you have a medically determinable impairment, established by objective medical evidence from acceptable medical sources, that significantly limits your ability to do basic work activities: standing, walking, sitting, lifting, seeing, hearing, understanding and remembering instructions, using judgment, and responding appropriately to supervision and routine changes. The impairment must also satisfy the duration requirement, lasting or expected to last 12 months or result in death.

Step two is intended as a screen to remove only groundless claims, and the severity threshold is legally low. But a claim supported by thin or outdated medical records can still die here, which is why continuous treatment matters so much.

Step 3: Does Your Condition Meet or Equal a Listing?

SSA maintains the Listing of Impairments, commonly called the Blue Book, a catalog of conditions organized by body system, each with detailed clinical criteria. If your medical evidence shows your condition meets every element of a listing, or is medically equivalent to one in severity, you are found disabled at step three, full stop, without any discussion of your age or past work.

The listings are deliberately demanding; most claimants do not meet one exactly. Failing at step three does not mean losing, it simply means the analysis continues, and in fact most successful claims are won at the later steps.

The Bridge: Residual Functional Capacity

Before steps four and five, SSA assesses your residual functional capacity (RFC): the most you can still do, on a sustained, full-time basis, despite all your impairments in combination. An RFC covers exertional abilities (sitting, standing, walking, lifting, carrying), postural and manipulative limits, environmental restrictions, and mental capacities like concentration, persistence, and pace. The RFC is often the single most important finding in the entire case, and detailed opinions from your treating providers about specific functional limits are the best evidence for it.

Step 4: Can You Do Your Past Relevant Work?

SSA compares your RFC to the demands of your past relevant work, generally jobs you performed at a substantial level within roughly the last five years, both as you actually performed them and as they are generally performed in the national economy. If your RFC allows either version, the claim is denied at step four. Describing your past jobs accurately, including their real physical and mental demands, is critical here; a vague job description can make heavy work look light on paper.

Step 5: Can You Adjust to Any Other Work?

If you cannot do past work, the burden effectively shifts to SSA to show that other work you can perform exists in significant numbers in the national economy, considering your RFC, age, education, and work experience together. This is where the medical-vocational grid rules operate, and they grow markedly more favorable at ages 50, 55, and 60. A 55-year-old limited to sedentary work with no transferable skills is generally found disabled under the grids; a 35-year-old with the same RFC generally is not. Vocational experts often testify at hearings on exactly this question.

Why This Framework Should Shape Your Evidence

Every record you submit should serve a step: proof your earnings are under SGA, objective findings establishing severity, clinical results matched against listing criteria, and functional detail supporting a restrictive RFC. Mason Law, P.C. builds claims around this framework from day one. If you want your case assessed through the same five steps a judge will use, request a free case evaluation.