What documents are needed for SSDI in California?

By Hogan Smith

Updated 08/20/2025


Applying for Social Security Disability Insurance (SSDI) in California requires submitting the right documents to prove both your disability and your eligibility. Missing or incomplete paperwork can delay or even result in denial of your application. Knowing what documents the Social Security Administration (SSA) expects will help you prepare a strong claim.

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Basic Identification Documents

When you apply for SSDI in California, you will need to provide:


  • A valid government-issued photo ID (driver’s license, state ID card, or passport).
  • Your Social Security number.
  • A birth certificate or proof of age.
  • Proof of U.S. citizenship or lawful residency (if not born in the U.S.).


Medical Evidence and Records

Medical documentation is the backbone of your SSDI claim. Be sure to include:


  • Medical records from doctors, hospitals, clinics, and specialists.
  • Results of diagnostic tests (X-rays, MRIs, bloodwork, etc.).
  • Treatment history, including surgeries, medications, and therapies.
  • Doctor’s notes describing your symptoms and limitations.
  • Contact details for all healthcare providers.


The SSA will use this evidence to confirm that your condition meets their definition of disability.


Work and Employment Records

Because SSDI is based on your work history, you’ll need to provide:


  • A detailed list of past jobs over the last 15 years.
  • W-2 forms or tax returns (if self-employed).
  • Recent pay stubs (if you worked shortly before applying).
  • Job descriptions showing the type of work you performed.


Financial and Family Information

You may also need:


  • Information about spouse and children (names, birthdates, SSNs).
  • Banking information for direct deposit of benefits.
  • Any details about other benefits (workers’ compensation, veterans’ benefits, etc.).


California-Specific Notes

Although SSDI is a federal program, your application in California goes through the SSA but is initially reviewed by the Disability Determination Service Division (DDSD). Providing complete records up front can help speed up the process.


Tips for a Strong SSDI Application
  • Gather at least one year of medical records before applying.
  • Make sure your doctors know you are applying so their records are complete.
  • Keep copies of everything you submit.
  • Respond promptly to any requests from the SSA or DDSD.

How Hogan Smith Can Help

At Hogan Smith, we guide California residents through the SSDI application process. Our team can:


  • Review your documents to ensure nothing is missing.
  • Work with your doctors to obtain detailed medical evidence.
  • File your claim accurately to avoid delays.
  • Represent you if your claim is denied and requires appeal.

Contact Hogan Smith Today

If you’re applying for SSDI in California, don’t risk delays or denials due to missing documents. Contact Hogan Smith for a free consultation, and let our team help you prepare a complete and persuasive application.


Further Reading

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Updated February 10, 2025

A black and white icon of a newspaper on a white background.

Updated February 10, 2025

A black and white icon of a newspaper on a white background.

Updated February 10, 2025

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