Work History Questionnaire for SSDI: What It Is and Why It Matters
When you apply for Social Security Disability Insurance, the SSA doesn't just want to know what's wrong with you medically. They also want to understand your work history — specifically, what kinds of jobs you've held, what physical and mental demands those jobs required, and whether you might still be able to do them (or something similar). That's where the Work History Report, also called the Work History Questionnaire, comes in.
What Is the SSDI Work History Questionnaire?
The SSA typically asks applicants to complete Form SSA-3369, the Work Background Report. This form asks you to list the jobs you've held over the past 15 years — a timeframe the SSA calls your relevant work period.
For each job, you'll describe:
- The job title and type of work performed
- Hours worked per week and days per week
- Whether you supervised others
- The physical demands: how much you walked, stood, sat, lifted, carried, stooped, or used your hands
- The heaviest weight you lifted and the weight you lifted frequently
- Whether the job required technical knowledge or skills
This isn't busywork. The SSA uses your answers to assess whether you can return to past relevant work — and if not, whether you can transition to other work that exists in the national economy.
Why the Work History Report Shapes Your Claim
SSDI eligibility involves a five-step sequential evaluation. Steps 4 and 5 are where your work history becomes critical:
- Step 4 asks whether your medical condition prevents you from doing any of your past relevant work
- Step 5 asks whether — given your age, education, work history, and Residual Functional Capacity (RFC) — you can adjust to other work
Your RFC is the SSA's assessment of the most you can still do despite your limitations. It's developed from your medical records, but it's applied against your work history. A sedentary RFC means something very different for someone who spent 15 years as a data entry clerk than for someone who spent 15 years as a construction laborer.
If the SSA determines your RFC still allows you to perform your past work — even if that work is demanding in other ways — they may deny your claim at Step 4, regardless of how serious your condition is.
The 15-Year Lookback: What Counts as "Relevant"
Not every job you've ever held counts. The SSA focuses on work performed within the past 15 years that:
- Was performed at the Substantial Gainful Activity (SGA) level (meaning it paid enough and involved enough activity to count as real work)
- Lasted long enough for you to learn how to do it
Work that was too brief, too sporadic, or below SGA thresholds may not be considered "past relevant work." SGA thresholds adjust annually — in recent years hovering around $1,470–$1,550/month for non-blind applicants — so the cutoff for what qualified during any given year can vary. 📋
How Different Work Backgrounds Lead to Different Outcomes
The questionnaire results don't mean the same thing for every claimant. Here's how different profiles interact with this form:
| Claimant Profile | How Work History Affects the Claim |
|---|---|
| Recent sedentary job (desk work) | May be harder to prove inability to work, even with physical limitations |
| Skilled trade or labor job | RFC that prevents heavy lifting may more easily rule out past work |
| Multiple low-skill, unskilled jobs | SSA may find transferable skills are minimal — can cut both ways |
| Long gap in work history | Fewer jobs fall within the 15-year window; may simplify the analysis |
| Self-employment history | Documenting job duties and income can be more complex |
The SSA's vocational analysis — often conducted with input from a Vocational Expert (VE) at an ALJ hearing — maps your work history to specific job codes in the Dictionary of Occupational Titles (DOT). These codes carry classifications for physical demand, skill level, and specific vocational preparation (SVP). Your actual job may have differed from the "textbook" version the SSA assigns to it.
Common Mistakes on the Work History Form
Claimants sometimes underreport job demands, assuming the SSA is looking for reasons to deny. The opposite problem also occurs: vague or incomplete answers leave the SSA to assume the least demanding version of a job, which can work against you.
🖊️ Specific, accurate descriptions matter. If your job as a "warehouse associate" actually required lifting 80 pounds regularly and standing for 10-hour shifts, say so. If your clerical job required constant hand-intensive typing that aggravates your condition, document that.
What Happens at the ALJ Stage
If your claim reaches an Administrative Law Judge (ALJ) hearing, a Vocational Expert is typically present. The VE will be asked to classify your past work and testify about whether someone with your RFC could perform it — and what other jobs might exist. Your work history questionnaire feeds directly into those questions.
Claimants who have kept detailed records of their job duties, physical demands, and daily work requirements are generally better positioned to challenge VE testimony that mischaracterizes their past work.
The Variable That Changes Everything
How your work history affects your SSDI claim depends on the intersection of factors that no general guide can fully untangle: the specific jobs you held, exactly how the SSA classifies them, what your RFC ends up being, how your medical evidence supports your limitations, and where your claim currently sits in the process.
Two claimants with identical diagnoses and similar work backgrounds can reach different outcomes based on details neither would think to mention without knowing what the SSA is actually looking for. That gap between general program rules and individual circumstances is where every SSDI claim ultimately lives.
