To apply for disability in South Dakota, you file a claim with the Social Security Administration either online at ssa.gov, by phone at 1-800-772-1213, or in person at one of six SSA field offices in the state. Before you start, decide whether you are applying for Social Security Disability Insurance (SSDI), which is based on your work history, or Supplemental Security Income (SSI), which is based on financial need. The application itself asks for your medical records, your work history for the past five years, and a detailed description of how your condition limits what you can do.
Figure Out Which Program You Qualify For
SSDI and SSI use the same medical definition of disability but measure financial eligibility in very different ways. Picking the right one before you file saves weeks of back-and-forth.
SSDI is tied to your work history. Most workers need 40 Social Security credits, with 20 of those earned in the 10 years before the disability began.1Social Security Administration. Disability Benefits – How Does Someone Become Eligible? Younger workers qualify with fewer; someone who becomes disabled before age 24 may need as few as six credits earned in the three years before the disability started.2Social Security Administration. Social Security Credits There is no asset test for SSDI, and your monthly payment is based on your lifetime earnings.
SSI has no work-history requirement, but your countable resources cannot exceed $2,000 as an individual or $3,000 as a couple.3Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet Your home and typically one vehicle do not count. The maximum federal SSI payment in 2026 is $994 per month for an individual and $1,491 for a couple.4Social Security Administration. SSI Federal Payment Amounts for 2026 Some applicants qualify for both programs at the same time.
Whichever program you apply to, the medical test is identical: you must have a physical or mental impairment that prevents you from performing any substantial gainful activity and that has lasted or is expected to last at least 12 continuous months, or is expected to result in death.5Social Security Administration. Part I – General Information For 2026, substantial gainful activity means earning $1,690 or more per month if you are not blind, or $2,830 or more if you are statutorily blind.6Social Security Administration. Substantial Gainful Activity Amounts If you are currently earning above those amounts, the claim is denied before any medical review happens.
Gather Your Documents Before You Start
Starting the application without your records on hand is the most common cause of early delays. Every time SSA has to contact you for a missing phone number or medication dose, the file sits.
Have your Social Security number, birth certificate, and current contact information ready. Then pull together the two bodies of information that drive the whole claim: your medical history and your work history.
Medical Records and Provider Information
Make a list of every doctor, therapist, hospital, and clinic that has treated your condition, with facility names, addresses, phone numbers, and the dates of treatment or testing. Write down every medication you take, the dosage, and which doctor prescribed it. If you already have copies of MRIs, lab work, or psychological evaluations, keep them accessible. SSA will also request records directly from your providers once you sign the medical release.
Work History and Earnings
You will be asked to describe every job you held in the five years before you became unable to work, including the physical demands of each — how much you lifted, how long you stood, how long you sat. This information fills out the Work History Report (Form SSA-3369).7Social Security Administration. Work History Report – Form SSA-3369-BK W-2s or self-employment tax returns help confirm your SSDI work credits and should match what SSA already has from IRS records.
The Two Forms That Do the Heavy Lifting
Two forms carry most of your claim. Taking your time with them makes a real difference.
The Application for Disability Insurance Benefits (Form SSA-16) collects your personal information, work history, marital status, and the date you became unable to work.8Social Security Administration. Form SSA-16 – Information You Need to Apply for Disability Benefits It also asks whether you have filed for workers’ compensation or similar benefits. The onset date you list matters: it determines when benefits begin and how much back pay you may receive, and setting it too late can cost you months of benefits.
The Adult Disability Report (Form SSA-3368) is where you explain how your conditions limit your daily functioning.9Social Security Administration. Form SSA-3368-BK – Disability Report – Adult List every physical and mental condition that affects your ability to work, and describe specifically what each one prevents you from doing. Vague answers like “back pain makes it hard” are far less useful than “I cannot sit for more than 20 minutes without needing to lie down.” Medical examiners rely on this document to understand how your diagnoses actually play out.
Both forms are available on the SSA website or at any field office.
How to File in South Dakota
You have three ways to submit.
- Online: The SSA portal at ssa.gov lets you complete and submit the SSDI application electronically and generates a confirmation number you can use to track the claim.10Social Security Administration. Apply Online for Disability Benefits
- By phone: Call 1-800-772-1213 to schedule an appointment where a representative walks you through the application.
- In person: Visit one of six SSA field offices in South Dakota — Sioux Falls, Rapid City, Aberdeen, Huron, Watertown, or Yankton. An in-person appointment helps if you have questions about the forms or want to hand over documents directly.
Whichever route you choose, confirm that every signature is in place, especially the medical release authorizing SSA to pull your treatment records. A missing authorization stops the review until SSA hears back from you.
What Happens After You File
Once your local SSA office verifies your basic eligibility, your file goes to the South Dakota Disability Determination Services (DDS) office in Sioux Falls for medical review.11Social Security Administration. Professional/Medical Relations Officers In Your Area A team of disability examiners and medical consultants reviews your records and decides whether your condition meets the legal standard.
If the existing records are not enough to decide, DDS may schedule a consultative examination with an independent physician or psychologist at no cost to you. You do not pick the doctor, but you do not pay for the visit either.
SSA estimates initial decisions generally take six to eight months.12Social Security Administration. How Long Does It Take to Get a Decision After I Apply for Disability Benefits? The complexity of your condition, how fast your providers respond to records requests, and current agency workload all affect timing. When the review finishes, SSA mails a written notice.
Some conditions move faster. SSA’s Compassionate Allowances program fast-tracks certain cancers, adult brain disorders, and rare childhood conditions where the diagnosis itself essentially confirms disability.13Social Security Administration. Compassionate Allowances You do not apply for this separately; SSA flags qualifying conditions automatically from the medical information you provide.
Also worth knowing before you file: SSDI benefits do not begin immediately. There is a mandatory five-month waiting period, and your first payment arrives in the sixth full month after SSA determines your disability began.1Social Security Administration. Disability Benefits – How Does Someone Become Eligible? SSA can also pay up to 12 months of retroactive benefits for the period before your application date if you were disabled during that time.14Social Security Administration. Retroactivity for Title II Benefits SSI has no waiting period, but payments cannot begin before the month after your application date, and SSI does not pay for months before you applied.
If Your Claim Is Denied
Most initial claims are denied. The appeals system exists because many people who qualify get turned down the first time, often because medical evidence was incomplete when the examiner reviewed the file. You have 60 days from receiving a denial to file at each stage.
The first appeal is a reconsideration, where a different examiner at DDS reviews your file along with any new evidence you send in.15Social Security Administration. Request Reconsideration Approval rates at this level are low, but you have to go through it to get to a hearing.
If reconsideration fails, you can request a hearing before an Administrative Law Judge. The ALJ reviews your file independently, hears your testimony, and may question medical or vocational experts. You will receive at least 75 days’ notice of the hearing date. Approval odds improve meaningfully at this level, and most successful applicants have a representative by then.
Beyond the hearing, you can ask the SSA Appeals Council to review the ALJ’s decision within 60 days.16Social Security Administration. Request Review of Hearing Decision The Appeals Council can decline to review, decide the case itself, or send it back for another hearing. If that fails too, the final step is a lawsuit in federal district court.
You can bring an attorney or non-attorney representative at any stage. Most work on contingency, and under SSA’s fee agreement process the fee is capped at the lesser of 25 percent of your past-due benefits or $9,200.17Social Security Administration. GN 03920.006 – Increases to Fee Cap Limits for Fee Agreements SSA withholds the fee from your back pay and pays the representative directly, so there is nothing out of pocket.