How to Apply for Federal Disability Retirement: Forms and Deadlines

To apply for federal disability retirement, you file OPM Forms SF-3107 and SF-3112 with supporting medical evidence, either through your agency’s human resources office (if you’re still employed or separated fewer than 31 days) or directly to the Office of Personnel Management if you’ve been separated longer. You have until one year after separation to file, and under FERS you must also apply for Social Security disability benefits as part of the process.¹

Confirm You Meet the Eligibility Rules First

Before you touch a form, make sure you clear each of the five gates. Missing one will stop the application cold.

At least 18 months of creditable federal civilian service under FERS, or five years under CSRS.²
A disease or injury that prevents you from performing the critical or essential elements of your position at a fully successful level, maintaining satisfactory conduct, or sustaining regular attendance.¹
A condition expected to last at least one year.¹
Certification from your agency that it cannot accommodate your condition in your current job or reassign you to a vacant position at the same grade and pay level within your commuting area.
Under FERS, a companion application for Social Security disability benefits. This is required by statute, even if you doubt you’ll qualify.¹

Know the Filing Deadline

You have to file before you separate from federal service, or within one year after separation. OPM enforces this strictly. The only exception: if you were mentally incompetent at the time of separation or within the year afterward, the deadline extends to one year from the date your competency is restored or a fiduciary is appointed, whichever comes first.³

If you’re weighing whether to resign, file the disability application first. A current employer has more reason to help you assemble paperwork than a former one, and once you’ve separated the clock runs whether or not your file is complete.

Complete the Required Forms

Two form packages carry the application. SF-3107, Application for Immediate Retirement, collects your personal information, federal service history, and benefit elections. SF-3112, Documentation in Support of Disability Retirement Application, is where the case is actually made. It has five parts:¹

SF-3112A, Applicant’s Statement of Disability. You describe your condition in your own words, how it affects your job, and how it affects daily life. Be specific and concrete; vague statements hurt the file.
SF-3112B, Supervisor’s Statement. Your immediate supervisor documents your duties, performance, conduct, and attendance, and describes how your condition has affected your work.
SF-3112C, Physician’s Statement. Your treating physician provides the diagnosis, prognosis, clinical findings, and specific restrictions on what you can and cannot do.
SF-3112D, Agency Certification of Reassignment and Accommodation Efforts. Your HR office records what it tried and certifies that neither accommodation nor reassignment was possible.
SF-3112E, Disability Retirement Application Checklist. A completeness check for the package.

Build the Medical Evidence Carefully

SF-3112C is where most applications succeed or fail. OPM isn’t looking for a diagnosis alone. It wants a clear explanation of why the diagnosis prevents you from doing your specific job. “Patient has chronic back pain” is not enough. “Patient cannot sit for more than 20 minutes, cannot lift over 5 pounds, and requires two rest periods per hour, making it impossible to perform the sedentary office duties described in the position description” gives OPM something concrete to evaluate.

Pull together your complete medical records, test results, imaging reports, and specialist evaluations. If more than one physician treats you, get statements from each. Include your official position description, performance appraisals that show a decline tied to your condition, and any records of reasonable accommodation requests you’ve made. Objective clinical evidence is what carries the file.

Submit the Package to the Right Place

Where you send the application depends on your employment status at the moment you file.

If you’re still on the agency’s rolls or have been separated for fewer than 31 days, submit the full package through your agency’s human resources office. Your agency reviews it for completeness, adds SF-3112D and any personnel records, and forwards everything to OPM.⁴

If you’ve been separated for more than 31 days, send the application directly to OPM. Your former agency may no longer have quick access to your personnel records, and with a one-year filing deadline you can’t afford the delay.¹

Photocopy or scan everything before you hand it over. Keep your own full set of every form, medical record, and attachment. If something goes missing, you want to be able to reconstruct the file the same day.

Track the Application After You Submit

OPM sends a confirmation once it receives the application and assigns a claim number with a “CSA” prefix. Use that number in every phone call, letter, or online inquiry about your case.⁵

An OPM specialist then measures your medical evidence, agency statements, and supporting documents against the eligibility rules. Expect requests for additional medical records or clarifications from your physician along the way. As of February 2026, OPM’s average processing time for immediate retirements (which includes approved disability applications) is about 71 days, though complex cases run longer.⁶

While OPM finalizes your case, you may receive interim annuity payments of roughly 60 to 80 percent of your estimated net annuity to help cover expenses.⁷

If OPM Denies the Application

A meaningful share of initial applications get denied, most often because the medical evidence didn’t clearly connect the condition to an inability to perform specific job duties. A denial usually points at documentation, not hopelessness.

Your first move after a denial is to request reconsideration from OPM. The denial letter includes specific instructions for disability cases. Reconsideration is your chance to submit additional medical evidence, updated physician statements, or targeted documentation that addresses whatever gap OPM identified.

If OPM denies again on reconsideration, you can appeal to the Merit Systems Protection Board. The deadline is 30 days from the date you receive the reconsideration decision. Appeals can be filed electronically through the MSPB website, by mail, by fax, or by personal delivery to the appropriate regional office. Miss the 30 days and the MSPB will generally accept a late filing only if you can show good cause. Because MSPB proceedings are adversarial and formal, many applicants bring in an attorney at this point.

1
Office of Personnel Management. Information About Disability Retirement (FERS) – Standard Form 3112-2
2
Office of the Law Revision Counsel. 5 USC 8451 – Disability Retirement
3
Office of the Law Revision Counsel. 5 USC 8453 – Application
4
Office of Personnel Management. How to Apply for Federal Disability Retirement
5
U.S. Office of Personnel Management. Frequently Asked Questions About OPM Retirement Claim Numbers
6
U.S. Office of Personnel Management. Retirement Processing Times
7
U.S. Office of Personnel Management. Retirement Quick Guide