The 5-Step Sequential Evaluation: How SSA Actually Decides Your Claim

When you file for SSDI, no one weighs your case on a hunch. Every claim — yours, your neighbor's, the one a judge hears next year — runs through the same five questions, asked in the same order. SSA calls it the five-step sequential evaluation, and it's the spine of every approval and every denial.

The word sequential matters. SSA works the steps in order and stops the moment it has an answer. That means a denial at Step 2 never reaches the medical questions at Steps 3 through 5 — and an approval at Step 3 never gets to the work questions at all. Once you see where your claim sits in this chain, your denial letter stops being a verdict and starts being a map.

Step 1 — Are you working above SGA?

The first question isn't medical at all. It's about money. SSA asks whether you're doing substantial gainful activity (SGA) — work that pays above a monthly threshold.

For 2026, the SGA limit is $1,690/month for non-blind claimants and $2,830/month if you're blind. Earn above that, and SSA can deny at Step 1 without ever looking at your medical records. This is one of the most common technical denials, and it catches people who pick up work while their claim is pending.

If your earnings are below SGA, you move to Step 2. If they're above it, the analysis usually ends here.

Step 2 — Do you have a "severe" medically determinable impairment?

Step 2 is a screening gate, not a high bar. SSA asks whether you have a medically determinable impairment — a condition shown by medical evidence, not just your own report — that significantly limits your ability to do basic work activities, and that meets the duration rule: expected to last at least 12 months or result in death.

"Severe" here is a term of art. It doesn't mean catastrophic. It means more than a slight limitation. Most claims clear Step 2 — but claims fail here when the file is thin: a diagnosis with no treatment records behind it, or a condition that hasn't lasted (and isn't expected to last) a full year.

Step 3 — Do you meet or equal a Listing (Blue Book)?

Step 3 is the fast lane. SSA maintains the Blue Book — formally the Listing of Impairments — a catalog of conditions with specific medical criteria that are considered severe enough to prevent any gainful work.

If your impairment meets a listing (you have exactly the findings it spells out) or equals one (your combination of impairments is medically equivalent in severity), SSA approves the claim right there. No work analysis, no vocational questions. You can browse how the listings are organized by body system.

The catch: the listings are demanding and precise. Many genuinely disabled people don't match a listing exactly — their records don't hit every required finding. That's not the end. It just means the analysis continues to Steps 4 and 5, where most claims are actually decided.

Step 4 — Can you do your past relevant work? (RFC enters here)

If you don't meet a listing, SSA assesses your residual functional capacity (RFC) — the most you can still do despite your limitations. RFC covers physical demands (how much you can lift, how long you can stand, sit, or walk) and mental demands (concentration, pace, handling instructions, showing up reliably).

Then SSA compares that RFC to your past relevant work — the jobs you've done in roughly the last several years. The question is narrow: given these limitations, could you still do any of that work? If the answer is yes, the claim is denied at Step 4. If no, you advance to the final step.

This is the first place where the strength of your evidence about function, not just diagnosis, starts to drive the outcome. A doctor's statement describing what you can and can't do during a normal workday carries real weight here.

Step 5 — Can you do any other work in the national economy?

At Step 5, the burden shifts to SSA. The question widens from your old jobs to all work: given your RFC, age, education, and work experience, is there other work that exists in significant numbers in the national economy that you could do?

This is where age and skills matter enormously. SSA uses the Medical-Vocational Guidelines (the "Grid Rules") to weigh those factors. The same RFC can lead to a denial for a younger worker with transferable skills and an approval for an older worker whose past work doesn't transfer. At a hearing, a vocational expert often testifies about what jobs — if any — someone with your limitations could perform.

If SSA can't identify other work you can do, you're found disabled. If it can, the claim is denied at Step 5.

Where most claims are actually won or lost (Steps 3 and 5)

Here's the pattern the five steps reveal. Steps 1 and 2 screen out a slice of claims on technical or threshold grounds. Step 3 approves the clearest medical cases outright. Everyone else — a large share of real claimants — lands in the RFC analysis at Steps 4 and 5, where the decision turns on functional evidence and vocational factors rather than a tidy diagnosis.

That's also where the stage of your claim changes everything. The initial application is a fast, evidence-limited screen, and most claims are denied there. The same claim, with the record built out, often fares very differently at reconsideration and especially at a hearing — because that's where someone takes a closer look at the Step 4 and Step 5 questions.

Knowing which step tripped your claim tells you what to fix. A Step 1 or Step 2 denial is about earnings or documentation. A Step 3 denial means you didn't match a listing — but the RFC fight at Steps 4 and 5 is still open. A Step 5 denial often turns on age, skills, and how completely your functional limits were described.

Before you file or refile, it helps to set realistic expectations grounded in real data rather than guesswork. The Approval-Odds Estimator shows how your odds shift by condition and state across the stages, and you can browse condition-level approval patterns to see where claims like yours tend to be decided. If you've already been denied and you're weighing an appeal, the appeal-decision tool walks you through whether moving to the next stage is worth it given where your claim stands.

The sequential evaluation can feel impersonal — five boxes, asked in order. But that structure is also your advantage. It tells you exactly which question your case has to answer next.