In the Social Security Administration's terms, your residual functional capacity (RFC) is its finding of the most you can still do at work, 8 hours a day and 5 days a week, despite your impairments. It covers physical, mental and sensory limits, and SSA uses it at steps 4 and 5 to decide whether any work remains for you.
What does residual functional capacity mean for SSDI?
Written by the Social Security Administration (SSA) rather than by your doctor, RFC is an administrative finding of the most work activity you can keep up on a regular and continuing basis. Under 20 CFR 404.1545, your RFC is “the most you can still do despite your limitations,” and SSA bases it on all the relevant medical and other evidence in your file. The rules quoted in this post come from Part 404 of the regulations, which governs Social Security Disability Insurance (SSDI), the program built on your work history.
SSA's policy ruling on RFC, SSR 96-8p, defines a regular and continuing basis as 8 hours a day, 5 days a week, or an equivalent work schedule. That definition carries more weight than it looks. The question is never what you can do on your strongest morning. It is what you can sustain across an ordinary work week, every week.
The same ruling makes two points that surprise many people. RFC is not the least you can do, it is the most. And because RFC is not a medical opinion, your doctor's view of your limits is evidence SSA weighs, not the finding itself. SSA reaches the RFC only after weighing the whole record, including that opinion.
Exertional and nonexertional limits in a disability RFC
SSA splits your limitations into two groups: exertional limits, which affect strength, and nonexertional limits, which affect everything else. Under 20 CFR 404.1569a, the strength demands are sitting, standing, walking, lifting, carrying, pushing and pulling.
SSR 96-8p requires SSA to assess those functions one by one first. Only after that function-by-function review can the RFC be summarized as an exertional level. The levels come from 20 CFR 404.1567:
| Exertional level | Lifting at most | Frequent lifting or carrying |
|---|---|---|
| Sedentary | 10 pounds | None stated; occasional lifting of small items such as files, ledgers and small tools |
| Light | 20 pounds | Up to 10 pounds |
| Medium | 50 pounds | Up to 25 pounds |
| Heavy | 100 pounds | Up to 50 pounds |
| Very heavy | More than 100 pounds | 50 pounds or more |
Nonexertional limits cover demands that have nothing to do with strength. The regulation gives these examples:
- Difficulty functioning because of nervousness, anxiety or depression
- Difficulty keeping attention or concentrating
- Difficulty understanding or remembering detailed instructions
- Difficulty seeing or hearing
- Inability to tolerate workplace conditions, such as dust or fumes
- Difficulty with manipulative or postural functions, such as reaching, handling, stooping, climbing, crawling or crouching
The split matters because of what comes next. When your limits are purely exertional, a rule in SSA's medical-vocational guidelines can decide step 5 directly. When nonexertional limits are present, those rules become a framework rather than an answer, which our guide to medical-vocational allowances covers in detail.
Physical RFC and mental RFC in a Social Security claim
SSA assesses your physical and mental capacity separately, then considers the combined effect of everything. Section 404.1545(b) addresses physical abilities. Limits on sitting, standing, walking, lifting, carrying, reaching, handling and similar functions can reduce your ability to do past work and other work.
Section 404.1545(c) addresses mental abilities. Limits in understanding, remembering and carrying out instructions, or in responding appropriately to supervision, coworkers and work pressures, can do the same. SSR 96-8p adds using judgment in work-related decisions and dealing with changes in a routine work setting to that list.
A third category is easy to overlook. Section 404.1545(d) recognizes that some impairments, such as skin conditions, epilepsy, vision or hearing loss, and conditions that call for environmental restrictions, affect other work-related abilities. Those limits belong in the RFC too.
Here is the part people often do not expect. Under section 404.1545(e), SSA considers the limiting effects of all your impairments, including ones it has rated as not severe. A back injury with moderate depression is a different RFC than either condition alone, and the regulation requires SSA to look at the whole picture, including pain and other symptoms that limit you beyond what the test results alone suggest.
The evidence that shapes your RFC for disability benefits
Your RFC is only as specific as the evidence behind it. SSR 96-8p lists what the assessment must rest on:
- Your medical history
- Medical signs and laboratory findings
- The effects of treatment, including side effects of medication
- Reports of your daily activities
- Lay evidence from people who know you
- Medical source statements
- The effects of symptoms, including pain
On the lay evidence point, section 404.1545(a)(3) names statements from your family, neighbors, friends and others who have seen your limitations. Those statements count alongside the medical file.
Medical opinions carry real weight, but not automatic weight. Under 20 CFR 404.1520c, which governs claims filed on or after March 27, 2017, SSA does not give any medical opinion controlling weight. It weighs persuasiveness, and the two most important factors are supportability and consistency. In plain terms, an opinion needs to explain its reasons and line up with the treatment notes. A form that checks boxes without explanation works like a receipt with no items listed: it shows a total, but nobody can see what was bought.
SSR 96-8p also requires a narrative discussion describing how the evidence supports each conclusion in the RFC and how conflicts in the record were resolved. When a decision sets an RFC, it is supposed to show its work.
How SSA uses your RFC at disability steps 4 and 5
SSA uses the same RFC twice: first against your past work at step 4, then against other work at step 5. Under 20 CFR 404.1520, the RFC is assessed after step 3 and before step 4, and the same assessment carries through both remaining steps. If your impairments do not meet or equal a listing at step 3, every question left in the five-step evaluation runs through your RFC.
At step 4, SSA compares your RFC with the physical and mental demands of your past relevant work, meaning recent work you did at the level of substantial gainful activity (SGA), the earnings level SSA treats as real, ongoing work. If your RFC still allows that work, the claim ends there with a finding of not disabled. SSR 96-8p says the RFC should not be expressed first in exertional categories at this step, because the first question is whether you can still do the job as you actually did it.
At step 5, SSA considers your RFC together with your age, education and work experience to decide whether you can adjust to other work. Here SSR 96-8p requires the RFC to be expressed in, or related to, the exertional categories. Under section 404.1560(c)(2), SSA carries the burden of providing evidence that other work you can do exists in significant numbers in the national economy. Our guide to vocational expert testimony picks up the story from there.
If your claim reaches an administrative law judge (ALJ), the judge sets the RFC from the record as it stands at that point. We tell people early that the RFC, more than the diagnosis, is where a claim that does not meet a listing turns, so the evidence in the sections above is worth building before that date. Our page on disability hearings covers what happens at that stage.
Questions People Ask About This
Who decides my RFC at each stage of the claim?
Under 20 CFR 404.1546, a state agency medical or psychological consultant at Disability Determination Services (DDS), the state agency that decides claims for SSA, usually assesses the RFC at the initial and reconsideration levels. A disability examiner deciding alone can also do it. At a hearing, the administrative law judge assesses it, and at the Appeals Council the administrative appeals judge does when the Council issues the decision.
Does work I did more than five years ago count at step 4?
Generally not. Under 20 CFR 404.1560(b)(1), past relevant work is work you did within the past five years, at the substantial gainful activity level, long enough to learn it. Work you started and stopped in fewer than 30 calendar days does not count. Section 404.1565 explains that older work is usually set aside because skills from it often no longer apply.
Will my own description of pain change my RFC?
It can, but not on its own. Under 20 CFR 404.1529, statements about pain or other symptoms will not alone establish disability. SSA weighs them against factors such as your daily activities, where the pain is and how often it occurs, what triggers it, the medications you take and their side effects, other treatment, and the things you do yourself for relief, such as lying down.
Sources
- 20 CFR 404.1545, Your residual functional capacity
- SSR 96-8p, Assessing residual functional capacity
- 20 CFR 404.1567, Physical exertion requirements
- 20 CFR 404.1569a, Exertional and nonexertional limitations
- 20 CFR 404.1520c, How we consider medical opinions
- 20 CFR 404.1520, Evaluation of disability in general
- 20 CFR 404.1560, When we will consider your vocational background
- 20 CFR 404.1546, Responsibility for assessing residual functional capacity
- 20 CFR 404.1529, How we evaluate symptoms, including pain
- 20 CFR 404.1565, Your work experience as a vocational factor