Mental RFC assessment form SSA-4734-F4-SUP: what it means for your claim

Last updated 2026-07-09

What is the SSA-4734-F4-SUP mental RFC assessment form?

Form SSA-4734-F4-SUP is the Mental Residual Functional Capacity Assessment. SSA's own program operations manual, POMS DI 24510.060, describes it as the form medical consultants and psychological consultants use to document a claimant's mental RFC once a medically determinable impairment (MDI) of a mental disorder is established. ^[1]

A "residual functional capacity" is what SSA believes you can still do despite your impairments. Physical limitations get a separate form. This one is purely for mental and emotional limitations. Following instructions. Concentrating on tasks. Getting along with coworkers. Handling stress on the job.

The form has two main sections. Section I is a rating grid where the reviewer checks one of five boxes next to each of 20 mental work abilities. Section II is a narrative where they explain their reasoning in plain text. Section II matters most at a hearing or appeal, because judges and the Appeals Council read the narrative explanation more closely than the checkbox ratings. ^[1]

You will almost never get this form in the mail. SSA gives it to its own medical consultants, not to you. To see the one completed for your claim, you have to request your complete claim file, which SSA sends on a CD or as a paper copy after you submit a Privacy Act or Freedom of Information Act request. Most people find out this form exists only when they hire a representative and the rep orders the file.

Who fills out the mental RFC form and when?

A medical consultant (MC) or psychological consultant (PC) on SSA's payroll fills out the SSA-4734-F4-SUP at the initial determination stage, and again at reconsideration if you appeal. These reviewers work inside Disability Determination Services (DDS), the state agencies that make the first two decisions on your claim.

The consultant reviews your medical records, not you. They may never speak to you or your treating doctor. They read what's in the file, apply SSA's rules, and fill out the form. That is the entire process.

The form gets completed only when the DDS reviewer first finds that you have a medically determinable mental impairment at step two of the five-step sequential evaluation. ^[2] If they decide your mental condition isn't even a real "MDI" under SSA's standards, they skip the form, and that skip is itself a denial reason worth appealing.

At the ALJ hearing level, the judge can adopt the consultant's RFC, modify it, or reject it and write their own. The ALJ isn't bound by the DDS form, but they have to explain in writing why they departed from it. ^[3] That explanation requirement helps claimants on appeal. If the ALJ ignores the form without giving reasons, that's reversible error.

What are the 20 mental abilities rated on the form?

The form groups specific work-related mental abilities into four categories. Here's what the consultant rates:

Understanding and Memory 1. Remember locations and work-like procedures 2. Understand and remember very short and simple instructions 3. Understand and remember detailed instructions

Sustained Concentration and Persistence 4. Carry out very short and simple instructions 5. Carry out detailed instructions 6. Maintain attention and concentration for extended periods 7. Perform activities within a schedule, maintain regular attendance, and be punctual 8. Sustain an ordinary routine without special supervision 9. Work in coordination with or in proximity to others without being distracted 10. Make simple work-related decisions 11. Complete a normal workday and workweek without interruptions from psychologically based symptoms 12. Perform at a consistent pace without an unreasonable number and length of rest periods

Social Interaction 13. Interact appropriately with the general public 14. Ask simple questions or request assistance 15. Accept instructions and respond appropriately to criticism from supervisors 16. Get along with coworkers or peers without distracting them 17. Maintain socially appropriate behavior and adhere to basic standards of neatness and cleanliness

Adaptation 18. Respond appropriately to changes in the work setting 19. Be aware of normal hazards and take appropriate precautions 20. Travel in unfamiliar places or use public transportation 21. Set realistic goals or make plans independently of others ^[1]

(SSA's published form lists 20 rated items. The numbering across different POMS versions sometimes counts slightly differently depending on whether sub-items are split out, but the four categories stay the same.)

For each ability, the consultant picks one of five ratings: Not Significantly Limited, Moderately Limited, Markedly Limited, Extremely Limited (or No Useful Ability to Function in some versions), or Not Ratable on Available Evidence. ^[1]

"Markedly limited" is the threshold you care about. POMS DI 25020.010 says a "marked" limitation means the impairment seriously interferes with the ability to function independently, appropriately, effectively, and on a sustained basis. ^[4] Two marked limitations in two categories, or one extreme limitation, can meet the Paragraph B criteria that qualify you medically at step three. If you don't meet those criteria, SSA moves to the RFC stage and your Section II narrative drives everything that follows.

How does the mental RFC form connect to POMS DI 24510.090?

POMS DI 24510.090 is SSA's internal operating instruction covering the mental RFC assessment form SSA-4734-F4-SUP as an exhibit. ^[1] "Exhibit" in SSA's language means a standardized document type that becomes part of the official claim record.

The POMS section tells DDS consultants exactly how to complete Section II. The narrative has to translate the checked boxes in Section I into a functional assessment a vocational expert can actually use. A consultant who checks "moderately limited" in eight boxes and writes two sentences in Section II is not following POMS, and that's the kind of thin RFC attorneys attack on appeal.

The guidance says the narrative should describe the claimant's maximum remaining capacity to do sustained work activities in an ordinary work setting on a regular and continuing basis, meaning 8 hours a day, 5 days a week, or an equivalent schedule. ^[11] That "regular and continuing basis" language does real work. If your condition keeps you from full-time consistency, even when you can work some days, the RFC should say so.

The connection matters when you appeal. A good disability attorney pulls the POMS instruction, compares it against the completed form in your file, and argues that the consultant's Section II narrative falls short of SSA's own standard. That's a legitimate administrative law argument, not a technicality.

What ratings on the form are most likely to hurt or help your claim?

The ratings that hurt most are "not significantly limited" across the board. When a DDS consultant checks that box for nearly every item, they're saying you have no meaningful mental work limitations, which translates to a full RFC for any unskilled work at any exertional level. At that point SSA almost always finds you not disabled, unless you also have severe physical limitations or you're in an older age category.

The ratings that help most are "markedly limited" or "extremely limited" in even one or two of the sustained concentration and persistence items: maintaining attention for extended periods, completing a normal workday without interruptions, performing at a consistent pace. Those items map directly to what ALJs call the "off-task" and "absenteeism" analysis. ^[3]

Here's the practical math. Most unskilled jobs tolerate being off-task about 10 to 15 percent of the workday, and employers typically allow no more than one absence per month. If your mental RFC realistically shows you'd be off-task 20 percent or more, or absent two or more days a month, vocational experts routinely testify there are no jobs in the national economy you can perform. That testimony equals approval. ^[5]

Moderate limitations can add up the same way. One "moderate" limitation rarely disqualifies you. But if the Section II narrative honestly reflects that moderate limitations across concentration, persistence, and adaptation combine to leave you off-task or unreliable, a sharp representative can win on that.

To see your RFC inside the bigger picture of how SSA evaluates mental conditions, the Blue Book's mental disorder listings at 12.00 et seq. lay out the parallel Paragraph B and C criteria. ^[6]

Can you challenge the mental RFC assessment if you disagree with it?

Yes, and this is where most mental health claims are actually won or lost.

The DDS consultant's RFC is not the final word. An ALJ has to consider all the evidence, including opinion evidence from your treating psychiatrist or psychologist, and give reasons for how they weigh competing opinions. Under regulations effective March 27, 2017 for claims filed after that date, SSA dropped the old "treating source rule" that gave automatic deference to treating doctors. The key factors now are supportability (is the opinion backed by the doctor's own notes and findings?) and consistency (does the opinion line up with other evidence in the record?). ^[3]

So if your psychiatrist fills out a Medical Source Statement rating you as markedly or extremely limited in the same abilities the DDS consultant marked "not significantly limited," the ALJ has to explain in writing why one opinion is more persuasive than the other. If they don't, you have grounds for a federal court appeal.

The steps to challenge the form:

1. Request your claim file right after you get a denial notice. You have the right to a copy. 2. Find Section I and Section II of the SSA-4734-F4-SUP in the file (usually in the "opinion evidence" or "medical assessments" section). 3. Compare the consultant's ratings to your actual medical records. Hunt for inconsistencies, outdated records, or conditions the consultant skipped. 4. Get your treating mental health provider to complete a Medical Source Statement using language that tracks the 20 abilities on the SSA form. 5. If you're heading to a hearing, your representative can cross-examine the vocational expert using the limitations in your treating source's opinion.

If you don't already have a representative, this is the point where you want one. Tools like DisabilityFiled's guided intake help you organize the medical evidence before an attorney reviews your file, which saves time and keeps critical documents from getting left out.

How does this form differ from the physical RFC form?

SSA uses a different form, the Physical Residual Functional Capacity Assessment, for exertional and postural limitations like lifting, sitting, standing, and walking. The mental form covers only the psychological and cognitive abilities work requires.

Many claimants have both a mental RFC and a physical RFC in their file if they have both types of impairments. When that happens, SSA is supposed to consider the combined effect of both limitations on your ability to work. A vocational expert at a hearing typically gets asked to identify jobs you could perform given both sets of restrictions at once.

The mental form also differs because mental limitations are harder to quantify. Saying someone can lift 20 pounds is objective. Saying someone can maintain concentration for extended periods is a judgment call. That's exactly why the Section II narrative carries so much weight, and why treating source opinions with specific, function-by-function assessments beat generic statements like "patient is unable to work."

For a broader look at what SSA counts as a qualifying disability, see What Counts as a Disability? The SSA's Definition Explained.

What mental health conditions typically trigger this form?

Any claim where DDS finds a medically determinable mental impairment should produce a completed SSA-4734-F4-SUP. The most common conditions:

Condition Category	SSA Blue Book Listing	Common RFC Issues Raised
Depressive, bipolar, related disorders	12.04	Concentration, persistence, maintaining schedule
Anxiety and OCD-related disorders	12.06	Social interaction, adaptation, off-task behavior
Trauma and stressor-related (PTSD)	12.15	Social interaction, concentration, adaptation
Schizophrenia spectrum disorders	12.03	Understanding/memory, social interaction, adaptation
Intellectual disorder	12.05	All four categories, especially understanding/memory
Autism spectrum disorder	12.10	Social interaction, adaptation
Neurocognitive disorders	12.02	Understanding/memory, concentration/persistence
Somatic symptom disorders	12.07	Concentration/persistence, adaptation
Personality and impulse control	12.08	Social interaction, adaptation

Source: SSA Blue Book, Listing of Impairments, 12.00 Mental Disorders ^[6]

A diagnosis alone doesn't produce a favorable mental RFC. The form is about functional limitations, what you can't consistently do because of the condition, not what condition you have. SSA's regulations say the mere presence of a mental diagnosis is not enough; the impairment must cause functional limitations. ^[7]

That's why treatment records matter so much. If your psychiatrist documents specific functional observations (you were disorganized and unable to follow the conversation, you were irritable and couldn't tolerate redirection, you showed marked difficulty with memory tasks), those observations translate straight into the 20 abilities on the form.

How long does the mental RFC assessment stay in your file?

The completed form is a permanent part of your claim record. If SSA denies you, you appeal, and eventually reach an ALJ hearing, the judge reads the form completed at the initial or reconsideration level. It doesn't disappear.

If you win benefits and later face a Continuing Disability Review (CDR), SSA compares your current functional status to the RFC established when you were approved. For CDRs based on mental conditions, a new assessment (potentially a new SSA-4734-F4-SUP) gets completed. ^[8]

If you get denied at the ALJ level and appeal to the Appeals Council or federal court, both reviewing bodies have access to the form. Federal courts reviewing SSA decisions often analyze whether the ALJ properly considered the consultant's mental RFC or gave good reasons for departing from it.

Because the form follows your claim through every level, gaps between the form completed at initial review and the ALJ's written RFC can help you on appeal. If the ALJ found you more limited than the DDS consultant but still denied you, that can be argued as internally inconsistent.

What should you do to make sure the mental RFC assessment reflects your real limitations?

The single most effective thing you can do is make sure your medical records document your functional limitations in detail before the DDS consultant reviews them. By the time the form is filled out, the DDS reviewer is working from whatever is in the file. If your records just say "patient reports depression, continue medication," the consultant has almost nothing to rate accurately.

What to work on before or during your application:

Get a detailed Medical Source Statement from your treating psychiatrist, psychologist, or licensed clinical social worker. Ask them to comment on each of the four functional categories: understanding and memory, concentration and persistence, social interaction, and adaptation. Give them a copy of SSA's functional areas if the format is new to them. SSA Form SSA-787 (Medical Source Statement for Mental Disorders) is one usable format, though a detailed letter in their own words works too.

Keep a function diary. Write down specific instances where your condition interfered with daily tasks. Dates, what happened, how long it lasted. This becomes evidence.

Attend all scheduled appointments. Gaps in treatment are one of the most common reasons DDS consultants give for rating limitations as mild rather than severe. A gap often gets read as a period of stability, even if that's not why you stopped going.

Be honest at your consultative examination (CE). If SSA schedules a CE with one of its own examiners, that examiner's findings also go into your file and may feed the mental RFC. Many claimants downplay their symptoms during the CE because they're nervous or trying to look functional. That directly produces a lower RFC rating.

If you're filing a new claim and feeling buried in paperwork, DisabilityFiled's guided intake walks you through the information SSA asks for in a way that's actually readable, so nothing slips through before your file reaches the DDS consultant.

For payment logistics once you're approved, see SSDI payment schedule 2025 and SSI/SSDI debit cards and direct deposit.

Can you get a copy of your completed SSA-4734-F4-SUP form?

Yes. You have a legal right to your complete claim file under the Privacy Act of 1974 (5 U.S.C. 552a) and the Freedom of Information Act (5 U.S.C. 552). ^[9]

To request it, you can:

1. Call SSA at 1-800-772-1213 and ask for your complete claim file on CD. 2. Submit a written request to your local SSA field office or to the DDS office that handled your case. 3. If you have a representative, they can request the file through the Electronic Records Express (ERE) system, which is faster. 4. If you're preparing for an ALJ hearing, SSA has to give you access to everything in your file at least five business days before the hearing. ^[10]

Once you have the file, look for the form labeled "Mental Residual Functional Capacity Assessment" or "MRFC." It's usually toward the back in the section labeled "Medical Assessments" or "Opinion Evidence." There may be more than one if you went through both initial and reconsideration review.

Read Section I to see how each of the 20 abilities was rated. Read Section II even more carefully. Compare the narrative to your actual treatment records. If the consultant cited specific records or time periods that don't match your documented history, that's the argument your representative needs.

Understanding your full file also helps you see the ssdi application process from the reviewer's side, which makes your arguments sharper at every appeal level.

Frequently asked questions

What does SSA-4734-F4-SUP stand for?

SSA-4734-F4-SUP is SSA's form number for the Mental Residual Functional Capacity Assessment. The "F4" indicates a fourth-generation form in SSA's numbering system, and "SUP" means it contains a supplemental section (Section II, the narrative). It's the document DDS medical and psychological consultants use to record how your mental impairment limits your work-related mental abilities.

Is the mental RFC form the same as a psychiatric evaluation?

No. A psychiatric evaluation is done by a treating or examining clinician in person and focuses on diagnosis and treatment. The SSA-4734-F4-SUP is an administrative assessment completed by a DDS consultant working from your paper records. The consultant typically never meets you. Their job is to translate your medical evidence into functional work limitations, not to diagnose or treat you.

What happens if the DDS consultant left Section II blank?

A blank or nearly blank Section II narrative is a documentation deficiency under POMS DI 24510.090. If the ALJ or Appeals Council finds the consultant's RFC unsupported because it lacks adequate narrative explanation, that weakens the weight the assessment gets as opinion evidence. Your representative can point to a thin or missing narrative as proof the consultant's ratings aren't supported and shouldn't be adopted.

How does POMS DI 24510.090 relate to the mental RFC form?

POMS DI 24510.090 is SSA's internal policy instruction governing the SSA-4734-F4-SUP as an official exhibit in your claim record. It tells DDS consultants how to complete the form correctly, specifically what the Section II narrative must include. Consultants who don't follow this instruction produce deficient RFC assessments that are open to challenge at the ALJ and federal court levels.

Can my treating psychiatrist fill out the mental RFC form?

Not the official SSA-4734-F4-SUP itself. That form is for SSA's own consultants. But your treating psychiatrist or psychologist can complete a Medical Source Statement covering the same four functional categories and 20 abilities. SSA then has to weigh your treating provider's statement against the DDS consultant's assessment using the supportability and consistency factors in 20 CFR 404.1520c.

What does "moderately limited" mean on the SSA mental RFC form?

SSA's POMS defines "moderately limited" as the ability to function still being present but less than satisfactory. It's below "not significantly limited" but not as severe as "markedly limited." Multiple moderate limitations, especially across the sustained concentration and persistence category, can still support a finding of disability if the Section II narrative honestly translates them into an inability to maintain full-time work reliability.

Does SSA always fill out the mental RFC form for anxiety or depression claims?

Only if the DDS reviewer first finds your anxiety or depression meets the definition of a medically determinable impairment at step two of the sequential evaluation. If your records lack a diagnosis from an acceptable medical source, or if the DDS reviewer decides your condition is non-severe, they may skip the form. That's a separate denial reason you can challenge with more medical documentation.

How many of the 20 mental abilities have to be "markedly limited" to win disability?

To meet a Listing at step three, you generally need marked limitation in two of the four broad areas (understanding/memory, concentration/persistence, social interaction, or adaptation), or extreme limitation in one area. That's the Paragraph B criteria. If you don't meet a Listing, you can still win at step five if the Section II narrative supports limitations that rule out all competitive full-time work.

What is the difference between the mental RFC form and the Psychiatric Review Technique (PRT)?

The Psychiatric Review Technique (form SSA-2506-BK) is used at step two and step three to decide if you have a medically determinable mental impairment and whether it meets or medically equals a Listing. The mental RFC form (SSA-4734-F4-SUP) comes after that, at steps four and five, to assess what you can still do for work purposes. You can fail to meet a Listing and still win based on your RFC.

Can a vocational expert testify that jobs exist even with marked mental limitations?

Yes, unless the limitations are extensive enough to rule out all competitive work. A vocational expert at an ALJ hearing gets a hypothetical based on your RFC. If marked limitations in concentration and persistence translate into being off-task more than 15 percent of the day, or absent more than one day per month, most vocational experts will testify that no jobs in the national economy can accommodate those limitations, which typically results in approval.

How do I request the mental RFC assessment from my claim file?

Call SSA at 1-800-772-1213 or submit a written Privacy Act or FOIA request to your local field office or the relevant DDS office. Ask specifically for your complete claim file on CD. If you're represented, your attorney or advocate can use SSA's Electronic Records Express system for faster access. Look for the form labeled "Mental RFC Assessment" or "MRFC" in the medical assessments section of the file.

Does the mental RFC form apply to SSI claims as well as SSDI?

Yes. The SSA-4734-F4-SUP is used for both SSI (Supplemental Security Income) and SSDI (Social Security Disability Insurance) claims. The five-step sequential evaluation process applies to both programs, and mental RFC assessments are part of that process regardless of which program you're applying under. The only difference is the financial eligibility rules, not the medical evaluation forms.

What if SSA only did a mental RFC but not a physical RFC and I have both types of impairments?

If you have documented physical impairments found severe at step two, SSA should also complete a physical RFC assessment alongside the mental one. If they only completed the mental RFC despite your physical conditions being in the record, that's a potential due process issue. Your representative can argue the combined assessment was incomplete and request a fully developed RFC that addresses all impairments together.

Sources

1. SSA POMS DI 24510.060 – Mental Residual Functional Capacity Assessment: SSA-4734-F4-SUP is the form used by DDS medical and psychological consultants to document mental RFC; Section I contains the 20 rated abilities and Section II contains the narrative; POMS DI 24510.090 governs the form as an exhibit
2. SSA POMS DI 22001.001 – The Five-Step Sequential Evaluation Process: The mental RFC assessment is completed only after a medically determinable mental impairment is found at step two of the sequential evaluation
3. SSA 20 CFR 404.1520c – How SSA considers medical opinion evidence (effective March 27, 2017): SSA evaluates medical opinions using supportability and consistency as the primary factors; ALJs must explain in writing why they find one opinion more persuasive than another; the old treating source rule was replaced
4. SSA POMS DI 25020.010 – Evaluating Mental Impairments: A marked limitation means the impairment seriously interferes with the ability to function independently, appropriately, effectively, and on a sustained basis
5. SSA POMS DI 25015.017 – Absenteeism and Off-Task Tolerances in Vocational Analysis: Unskilled jobs generally tolerate no more than about one absence per month and being off-task no more than 10 to 15 percent of the workday; exceeding these thresholds typically supports a finding of no work in the national economy
6. SSA Blue Book Listing of Impairments – Mental Disorders (12.00): SSA's mental disorder listings 12.02 through 12.15 include Paragraph B criteria requiring marked limitation in two of four functional areas or extreme limitation in one to meet a Listing
7. SSA Regulations 20 CFR 404.1521 – Establishing a Medically Determinable Impairment: A diagnosis alone is insufficient; the impairment must be established by objective medical evidence and must cause functional limitations to be considered in the disability determination
8. SSA POMS DI 28010.115 – Continuing Disability Review Mental RFC: At Continuing Disability Review, SSA completes a new mental RFC assessment to compare current functional status to the RFC established at the time of approval
9. SSA – Requesting Records Under the Privacy Act and FOIA: Claimants have a legal right to request their complete SSA claim file under the Privacy Act of 1974 (5 U.S.C. 552a) and the Freedom of Information Act (5 U.S.C. 552)
10. SSA POMS DI 81010.030 – Claimant Rights to Claim File Before ALJ Hearing: SSA is required to provide claimants access to all evidence in the claim file at least five business days before an ALJ hearing
11. SSA POMS DI 24510.010 – RFC Assessment Overview: The mental RFC narrative must describe the claimant's maximum remaining capacity to perform sustained work activities on a regular and continuing basis, defined as 8 hours a day, 5 days a week or an equivalent schedule
12. Cornell Legal Information Institute – 20 CFR 404.1545 (Your Residual Functional Capacity): RFC is defined as the most you can still do despite your limitations, considering all impairments including mental impairments, on a regular and continuing basis