How to Apply for State Disability in California (SDI vs. SSDI Explained)

If you live in California and can't work due to a disability, you have access to two separate disability programs — and most people confuse them. One is run by the state of California. The other is run by the federal government. Understanding which one you're applying for — and how — is the first step to getting benefits you may be entitled to.

California State Disability Insurance (SDI) Is Not SSDI

California State Disability Insurance (SDI) is a short-term program administered by the California Employment Development Department (EDD), not the Social Security Administration. It's funded through payroll deductions from California workers' paychecks — the "CASDI" line on your pay stub.

SSDI (Social Security Disability Insurance) is a federal program administered by the SSA. It covers workers with long-term or permanent disabilities and requires a much more extensive medical and work history review.

These programs are separate, have different eligibility rules, different benefit amounts, and entirely different application processes.

How to Apply for California SDI Through the EDD

California SDI is designed for workers who are temporarily unable to work — typically for up to 52 weeks — due to a non-work-related illness, injury, or pregnancy.

Step 1: Confirm You're Covered

To be eligible for California SDI, you generally must:

• Have paid into SDI through your California wages (check your pay stub for "CASDI" deductions)
• Have earned at least $300 in wages during your base period from which SDI deductions were taken
• Be unable to do your regular work for at least eight consecutive days
• Be under the care of a licensed physician or other qualified medical professional

Self-employed workers are generally not automatically covered unless they opted into the Elective Coverage program.

Step 2: File Your SDI Claim Online Through SDI Online

The EDD strongly encourages filing through SDI Online at edd.ca.gov. You can also request a paper form (DE 2501) by calling the EDD.

You'll need:

• Your Social Security number
• Employment information and wages
• Your physician's name and contact information
• Your last day worked

⏱️ File your claim within 49 days of your first day of disability or you may lose benefits.

Step 3: Your Physician Completes the Medical Certification

Your doctor or medical provider must submit a medical certification confirming your disability. Through SDI Online, your provider can submit this electronically. Without this certification, your claim will not be processed.

Step 4: EDD Reviews and Pays

Once your claim and certification are received, EDD typically processes claims within 14 days. There is a seven-day unpaid waiting period at the start of your claim before benefits begin.

Benefit amounts are based on your highest-earning quarter during the base period. As of recent years, California SDI replaces up to 60–70% of weekly wages, depending on income level. Exact rates adjust annually.

How California SDI Compares to Federal SSDI

When You Might Need to Apply for Federal SSDI Instead

If your disability is expected to last more than 12 months or result in death, California SDI may not be the right program — or may only be a temporary bridge. Federal SSDI is designed for long-term disability and has its own separate application process through the SSA.

To qualify for SSDI, you need work credits earned through Social Security-taxed employment. The number of credits required depends on your age at the time of disability. The SSA also evaluates whether your condition prevents you from performing any substantial gainful activity (SGA) — not just your previous job.

🔍 The federal SSDI medical review is significantly more involved than the SDI process. The SSA uses a five-step sequential evaluation, reviewing your age, education, work history, and residual functional capacity (RFC) — an assessment of what you can still do despite your condition.

Some California workers end up applying for both programs simultaneously — SDI first for immediate short-term income, then SSDI for long-term coverage. Benefits received from SDI may be offset against SSDI back pay, depending on how the SSA handles overlapping periods.

The Variable That Changes Everything

How this plays out for any individual depends heavily on factors that no general guide can account for: how long your disability is expected to last, whether your employer withheld SDI from your wages, the nature and documentation of your medical condition, your earnings history, and whether you've paid enough into the federal Social Security system to qualify for SSDI at all.

California SDI and federal SSDI serve different populations with different needs — and the right path forward depends entirely on where your situation fits within those two systems.