California taxes SSDI and SDI differently, and the difference matters

California does not tax federal Social Security Disability Insurance (SSDI) payments. However, California does tax State Disability Insurance (SDI) — the state's own short-term disability program — as ordinary income. The two programs are separate, funded differently, and taxed differently. If you receive only SSDI, you owe no California state income tax on those payments. If you receive SDI, California will tax it unless your total income falls below the state filing threshold.

The confusion arises because both programs use the word "disability" and both replace lost wages. But SSDI is a federal Social Security program funded by payroll taxes over your working life. SDI is a state program funded by employee payroll deductions in California, and it covers temporary disabilities — usually up to 52 weeks. Understanding which program you receive is the first step to knowing what you owe.

Key Takeaways

  • SSDI payments are never taxed by California, even if your total income is high.
  • SDI payments are taxed as ordinary income by California unless your income is below the filing threshold.
  • You can receive both SSDI and SDI at the same time, and each is taxed according to its own rules.
  • Your employer may have withheld taxes from SDI payments during the year, which you can claim back on your tax return.
  • If you are unsure which program you receive, your payment stub or award letter will say "SSDI" or "SDI" explicitly.

How to tell which program you receive

Your payment stub or award letter from the Social Security Administration (for SSDI) or the California Employment Development Department (for SDI) will state the program name directly. SSDI payments come from the federal government and are labeled as such. SDI payments come from California and will say "State Disability Insurance" or "SDI" on the document.

If you are receiving payments but have lost the original letter, you can log into your Social Security account at ssa.gov to view SSDI details, or call the Social Security Administration at 1-800-772-1213. For SDI, you can create an account at edd.ca.gov or call the California Employment Development Department at 1-866-363-6050.

SSDI and California state taxes

Federal law exempts SSDI from California state income tax. This is true regardless of how much SSDI you receive or what other income you have. Even if your SSDI payments push your total income well above California's filing threshold, the SSDI portion itself is never taxable to California.

This exemption applies only to SSDI — the federal program. It does not explore to Supplemental Security Income (SSI), which is also federal but is treated differently for state tax purposes. However, SSI is also not taxed by California. The key distinction is that SDI, the state program, is taxed.

SDI and California state taxes

State Disability Insurance is taxed by California as ordinary income. If you receive SDI, you must report it on your California tax return unless your total income falls below the filing threshold. For the 2024 tax year, the filing threshold for most individuals is $23,942 (this amount changes annually). If your total income — including SDI, wages, interest, and other sources — is below that threshold, you do not have to file.

Your SDI payments may have had taxes withheld during the year. If they did, you will see the withholding on your final SDI payment stub or on a form sent to you by the Employment Development Department. You can claim this withholding on your California tax return, and if more was withheld than you owe, you will receive a refund.

When you receive both SSDI and SDI

Some people receive both programs at the same time. This can happen if you were working, became disabled, and received SDI while your SSDI process was pending. Once SSDI is approved, you may continue to receive SDI for the remainder of its benefit period (usually up to 52 weeks total from the start of your disability). The two payments are separate and taxed separately.

On your California tax return, you report only the SDI portion as income. The SSDI portion is not reported to California and does not count toward your income for tax purposes. If you are unsure how much of each you received, your payment stubs will show them separately, or you can contact both agencies to request a year-end statement.

Filing your California tax return with disability income

If you received SDI and your total income is above the filing threshold, you must file a California tax return. You will report the SDI as income on Schedule CA (540-NR) or on the main Form 540, depending on your residency status. SSDI is not reported anywhere on the return.

If you had taxes withheld from your SDI payments, attach the withholding statement (usually a Form 1099-R or similar) to your return. If you owe more tax than was withheld, you will owe the difference. If more was withheld than you owe, you will receive a refund. You can file on paper or electronically through the California Franchise Tax Board's website at ftb.ca.gov.

What happens if you do not file when you should

If your income is above the filing threshold and you do not file, the California Franchise Tax Board may assess penalties and interest on the unpaid tax. The penalty for late filing is typically 5% of the unpaid tax per month, up to 25%. Interest accrues daily at a rate set by the state. If you have not filed in prior years and believe you owe, you can file amended returns for the past four years.

If you are unable to pay what you owe, California offers payment plans and may reduce or waive penalties if you have a reasonable cause for the late filing. Contact the Franchise Tax Board at 1-800-852-5711 to discuss your situation.

Frequently Asked Questions

Do I have to report SSDI on my California tax return?

No. SSDI is exempt from California state income tax and is not reported on your state return. You do not include it in your income calculation for filing threshold purposes either.

What if I received SDI but no taxes were withheld?

You still owe California income tax on the SDI if your total income is above the filing threshold. You will calculate the tax owed when you file your return. You can pay it with your return or set up a payment plan with the Franchise Tax Board if you cannot pay in full.

Can I claim SDI as a deduction on my California return?

No. SDI is taxable income, not a deductible expense. You report it as income and pay tax on it like wages. However, if you had taxes withheld, you claim that withholding as a credit against your tax liability.

Does receiving disability income affect my California filing threshold?

Only SDI counts toward your income for the filing threshold. SSDI does not count. If you receive only SSDI, you may not have to file even if you have other small income sources, as long as your total is below the threshold.

What if I moved out of California while receiving SDI?

If you moved to another state, you may still owe California tax on SDI you received while a resident. Once you establish residency in another state, that state may tax the SDI instead, depending on its laws. Contact both the California Franchise Tax Board and your new state's tax authority to clarify your obligations.