When people think about disability claims, they often focus on medical records first. That makes sense. But in many Social Security Disability and long-term disability cases, vocational evidence can quietly become the deciding issue. A file can contain years of treatment notes and still run into trouble if the work-history picture is incomplete, inaccurate, or framed in a way that makes a claimant appear more employable than they really are.
That is where many claims start to wobble.
In general terms, vocational issues involve questions like: What did your job actually require? Were your skills truly transferable? Could you realistically sustain work activity, not just perform isolated tasks once in a while? The Social Security Administration evaluates disability using vocational factors such as past relevant work, age, education, and work experience, and it assesses whether a person can still do prior work or adjust to other work in the national economy under its regulations and medical-vocational rules (20 C.F.R. § 404.1560, 20 C.F.R. § 404.1565, 20 C.F.R. § 404.1568, Appendix 2 to Subpart P of Part 404). In ERISA-governed long-term disability claims, plan administrators also examine occupation, duties, and capacity, and Department of Labor rules require a “full and fair review” of disability benefit claims (DOL fact sheet, DOL compliance assistance).
In this post, you’ll learn five common vocational mistakes that can undercut a disability claim, why they matter, and how an attorney may help build a record based on evidence instead of assumptions.
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A disability claim is not always about whether a person is sick or injured. Often, the real fight is narrower: what work-related functions remain, and whether those functions match real job demands.
The SSA describes residual functional capacity, or RFC, as an administrative assessment of the most a person can still do despite medically determinable impairments, including limitations caused by symptoms such as pain (SSA POMS DI 24510.006). Its current Vocational Expert Handbook also explains that vocational experts analyze past relevant work, skill level, and transferability of skills when medical issues alone do not resolve the case (SSA Vocational Expert Handbook, effective January 6, 2025).
That may sound technical, but the everyday version is simple: if the work story is off, the claim result can be off too.
If you want a deeper overview of how these disputes develop, our guide on how job duties, transferable skills, and work-capacity disputes often shape these cases gives useful background before getting into the specific mistakes below.
This is one of the most common problems in disability claims.
A claimant says they worked as a “manager,” “technician,” “coordinator,” “assistant,” or “driver,” and assumes the title tells the story. But job titles can be misleading. Two people with the same title may do very different work. One office manager may spend most of the day seated at a computer; another may be on their feet, lifting boxes, covering reception, supervising staff, and handling constant interruptions.
That difference matters because adjudicators and vocational experts often compare a claimant’s limitations against the actual demands of past work. The SSA’s rules on past relevant work focus on work done within the relevant period that was substantial gainful activity and lasted long enough to learn it (20 C.F.R. § 404.1560). The agency’s more recent policy materials also reflect the current five-year lookback for past relevant work issues (SSA POMS DI 25005.015, updated March 4, 2026).
A vague description can create several problems: