To apply for disability in Missouri, you file with the Social Security Administration — online at ssa.gov, by phone at 1-800-772-1213, by mail, or in person at a local field office. SSA runs two separate programs, Social Security Disability Insurance (SSDI) and Supplemental Security Income (SSI), and your application will be evaluated for whichever one fits your situation. About 62% of initial claims are denied, so how thoroughly you prepare matters as much as how you file.
Figure Out Which Program You’re Applying For
SSDI and SSI pay monthly benefits to people with qualifying disabilities, but the eligibility rules are different.1Social Security Administration. Overview of Our Disability Programs SSDI is tied to your work history: you qualify based on Social Security taxes you paid during your career, and your benefit amount reflects your lifetime earnings. SSI is needs-based for people with limited income and assets, regardless of whether they’ve worked. Some people qualify for both at once.
Each program uses its own forms and has different consequences after approval. SSDI eventually leads to Medicare; SSI connects to Medicaid in Missouri.2USAGov. SSDI and SSI Benefits for People With Disabilities
Do You Qualify?
The Medical Standard (Same for Both Programs)
You must have a physical or mental condition that prevents you from doing substantial gainful activity and that is expected to last at least 12 continuous months or result in death.3Social Security Administration. Code of Federal Regulations 404.1509 – How Long the Impairment Must Last For 2026, substantial gainful activity means earning more than $1,690 per month, or $2,830 per month if you are blind.4Social Security Administration. Substantial Gainful Activity If you are currently earning above those amounts, SSA will generally deny the claim without a full medical review.
SSDI: Work Credits
SSDI requires enough work credits earned through payroll taxes. You can earn up to four per year, and in 2026 every $1,890 in earnings gets you one credit.5Social Security Administration. Update 2026 How many you need depends on your age when you became disabled. A 31-year-old generally needs 20 credits (roughly five years of work); someone disabled at 50 needs 28. Younger workers need fewer. Some of those credits must have been earned in the years just before your disability began.
SSI: Income and Resource Limits
SSI has strict financial limits instead of a work-credit requirement. In 2026, the maximum federal SSI payment is $994 per month for an individual and $1,491 for a couple.6Social Security Administration. SSI Federal Payment Amounts for 2026 Any countable income you receive reduces that amount, and if your income exceeds the threshold, you won’t qualify at all.
The resource cap is $2,000 in countable assets for an individual and $3,000 for a couple.7Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet Countable resources include bank accounts, stocks, and cash. Your primary home, one vehicle, and certain personal belongings generally don’t count. These limits haven’t moved in decades, so even modest savings can disqualify you.
If you’re approved for SSDI, a spouse, ex-spouse, or children may qualify for auxiliary benefits on your record under separate rules.8Social Security Administration. Who Can Get Family Benefits SSI does not offer family benefits.
What to Gather Before You Start
Incomplete answers are one of the easiest ways to slow down a claim. Pull together three categories of information before you open the application.
- Personal documents: Social Security number, birth certificate or other proof of age, and marital history including any divorce decrees.
- Medical evidence: names, addresses, and phone numbers for every doctor, hospital, clinic, and therapist who has treated you; dates of visits, diagnoses, medications with dosages, and any test results you have copies of. The more specific you are here, the faster Missouri’s disability examiners can collect your records.
- Work history: job titles, employers, dates, duties, and earnings for the last 15 years. SSA uses this to decide whether you could still perform any of your past jobs with your current limitations.
For SSI, also gather bank statements, documentation of any property you own, proof of your living arrangements, and your bank routing and account numbers for direct deposit. The main forms are SSA-16 for SSDI, SSA-8000 for SSI, and the disability report SSA-3368. All are available from SSA’s website or at a local office.
How to File
The fastest route is online at ssa.gov/disabilityonline. To use the online application you must be at least 18, not currently receiving benefits on your own record, and not have been denied disability in the last 60 days.9Social Security Administration. Apply Online for Disability Benefits You can save your progress and return later, which helps given how much information the forms require.
If you want help, call SSA at 1-800-772-1213 (TTY 1-800-325-0778) to start by phone or schedule an in-person appointment at a Missouri field office. You can also download the forms, complete them by hand, and mail them to your local office. Whichever method you choose, you’ll get a confirmation number or receipt. One important limit: the SSI application cannot be completed entirely online and usually requires a phone or in-person interview.
What Happens After You File
SSA’s local field office handles the initial paperwork first, verifying your work credits for SSDI or your income and assets for SSI.10Social Security Administration. Disability Determination Process If those non-medical requirements check out, your case moves to Missouri’s Disability Determination Services for the medical evaluation.
Missouri’s DDS operates under the state Department of Elementary and Secondary Education, with district offices in Jefferson City, Kansas City, St. Louis, Springfield, and Cape Girardeau.11Missouri Department of Elementary and Secondary Education. Disability Determination A disability examiner paired with a medical consultant reviews your claim, requests records from every provider you listed, and looks at your treatment history, test results, and daily functioning.
If your existing records aren’t enough to decide the case, DDS may send you to a consultative examination with one of their contracted doctors. You don’t pay for that exam. The DDS team evaluates how your condition affects your ability to perform work-related activities, factoring in your age, education, and past work. Their recommendation goes back to SSA, which issues the official decision.
Compassionate Allowances for Severe Conditions
Some conditions are so obviously disabling that SSA fast-tracks them. The Compassionate Allowances program covers about 300 conditions, mostly certain cancers, rare childhood disorders, and progressive neurological diseases like ALS.12Social Security Administration. Compassionate Allowances Website Home Page If your diagnosis appears on the list, approval can come in weeks rather than months. You don’t request this separately; SSA’s system flags qualifying conditions automatically. You still need medical records confirming the diagnosis.
How Long It Takes
Expect the initial decision to take several months. Processing times depend on how quickly DDS can collect your medical records and whether a consultative exam is needed. Thorough, current documentation from the start is the single best way to speed things up. If your doctors’ offices are slow to respond to records requests, DDS stalls. Appeals take longer still: reconsideration adds a few months, and the wait for an Administrative Law Judge hearing can stretch beyond a year.
If You’re Approved
SSA sends an award letter with your monthly benefit amount and the date benefits begin.
SSDI imposes a five-month waiting period from the date SSA determines your disability began, so your first payment covers the sixth full month of disability.13Social Security Administration. Is There a Waiting Period for Social Security Disability Insurance Benefits ALS applicants approved on or after July 23, 2020 have no waiting period.14Social Security Administration. Code of Federal Regulations 404.315 – Who Is Entitled to Disability Benefits If you were on SSDI within the last five years, the waiting period may be waived.
SSDI also allows up to 12 months of retroactive benefits before the date you filed, as long as you were disabled during that period.15Social Security Administration. SSA Handbook 1513 SSI pays no retroactive benefits before the application date, though you will receive past-due amounts for the months between filing and approval.
On health coverage: SSDI recipients become eligible for Medicare after a 24-month qualifying period from the start of their disability entitlement, which runs concurrently with the five-month waiting period.16Social Security Administration. Medicare Information SSI recipients typically qualify for Medicaid in Missouri right away, often starting the same month they become eligible for SSI.
If You’re Denied
A denial isn’t the end. Many denied claims eventually succeed on appeal. You have 60 days from receiving the denial notice to file; SSA assumes you received the letter five days after its date.17Social Security Administration. Your Right to Question the Decision Made on Your Claim Missing that deadline can cost you your appeal rights entirely. Mark the date immediately.
Appeals go through four levels:18Social Security Administration. Understanding Supplemental Security Income Appeals Process – Section: Steps in the Appeals Process
- Reconsideration, where a different examiner and medical consultant at DDS take a fresh look. You can submit new medical evidence at this stage, and you should.19Social Security Administration. POMS DI 27001.001 – Introduction to the Reconsideration Process
- A hearing before an Administrative Law Judge, where about 51% of claimants are approved. You testify about your condition, often by video, and can bring medical or vocational witnesses. This is where many claims turn around.
- Appeals Council review, which may decline to review, uphold, reverse, or send the case back for a new hearing.
- A civil suit in federal district court.
A different deadline applies if you’re already on disability and SSA decides your condition has improved: you have 10 days from the notice to appeal if you want your payments to continue during review.17Social Security Administration. Your Right to Question the Decision Made on Your Claim If you miss the 60-day deadline for good cause, you can request an extension in writing.
Hiring a Representative
You can handle the whole process yourself, but professional help becomes more valuable the further you get into appeals. Both attorneys and non-attorney representatives are regulated by SSA and subject to the same fee rules.
Under the standard fee agreement, your representative receives 25% of your past-due benefits or $9,200, whichever is lower. That cap has been in effect since November 30, 2024.20Social Security Administration. Fee Agreements SSA pays the fee directly out of your back pay. If you don’t win, you typically owe nothing. SSA also charges the representative a $123 processing fee, which comes out of their portion rather than yours.
Most people don’t need a representative at the initial application stage. The ALJ hearing is where representation tends to pay for itself — a representative knows what evidence judges find persuasive, can cross-examine vocational experts, and can frame your limitations in SSA’s own terms.
After Approval, Benefits Aren’t Automatically Permanent
SSA periodically re-evaluates whether you still meet the disability standard through continuing disability reviews, with frequency depending on whether your condition is expected to improve, might improve, or is considered permanent.21Social Security Administration. Code of Federal Regulations 404.1590 SSDI also has a trial work period that lets you test working for up to nine months without losing benefits; in 2026, a month counts toward it if you earn $1,210 or more.22Social Security Administration (Choose Work). Fact Sheet: Trial Work Period SSI handles work differently, reducing benefits gradually as income rises rather than cutting off at a hard threshold. Both of those come up only after you’re approved, but it’s worth knowing they exist before you decide whether to apply.