California does not tax Social Security benefits

California state income tax does not apply to Social Security retirement, survivor, or disability benefits. This is true whether you receive benefits from the federal Social Security Administration or from the Railroad Retirement Board. The state treats these payments as non-taxable income for state tax purposes.

However, you may still owe federal income tax on your Social Security benefits depending on your total income. The federal government uses a formula based on your "combined income" — which includes half your Social Security benefits plus all other income — to determine whether any portion of your benefits is taxable at the federal level. California's exemption applies only to state taxes, not federal ones.

Key Takeaways

  • California does not tax Social Security benefits at the state level, regardless of how much you receive or what your other income is.
  • Federal income tax may still apply to your Social Security benefits if your combined income exceeds certain thresholds, which vary based on filing status.
  • Combined income includes half your Social Security benefits plus wages, interest, dividends, and other income sources.
  • You may need to file a federal tax return even if you owe no California state tax, depending on your total income and filing status.

How federal taxation of Social Security works

The federal government taxes Social Security benefits using a two-tier system based on your combined income. Combined income is calculated as your adjusted gross income plus nontaxable interest plus half your Social Security benefits.

For 2024, if you file as single and your combined income is between $25,000 and $34,000, you may owe federal tax on up to 50 percent of your benefits. If your combined income exceeds $34,000, you may owe tax on up to 85 percent of your benefits. The thresholds are higher for married couples filing jointly ($32,000 to $44,000 for the first tier, and above $44,000 for the second tier) and lower for married couples filing separately.

These income thresholds have not changed since 1984, so more people fall into the taxable range each year as incomes rise. If you have other income sources — such as a pension, part-time work, rental income, or investment earnings — those count toward your combined income and may push you into a taxable bracket.

What counts as income for the federal calculation

Combined income includes wages from employment, net self-employment income, interest (including tax-exempt municipal bond interest), dividends, capital gains, rental income, pension payments, and distributions from retirement accounts like IRAs or 401(k)s. It also includes half your Social Security benefits themselves.

Some income sources do not count toward combined income. These include Supplemental Security Income (SSI), certain veterans benefits, workers' compensation, and some state and local government pensions if you did not pay into Social Security while earning them.

If you are married and file separately, the rules are stricter: you may owe tax on your Social Security benefits with almost no threshold at all. This is one reason married couples are generally advised to file jointly if one or both receive Social Security.

Whether you need to file a federal tax return

You may need to file a federal income tax return even if California does not tax your Social Security benefits. The requirement depends on your total income, filing status, and age.

For 2024, a single person age 65 or older must file if their gross income is $15,000 or more. A married person age 65 or older filing jointly must file if their combined gross income is $30,000 or more. These thresholds include your Social Security benefits as part of gross income.

Even if you do not owe tax, filing a return may be worth doing if you paid federal income tax through withholding or estimated payments. The IRS will refund the overpayment only if you file. You can request that the Social Security Administration withhold federal income tax from your monthly benefit payment if you want to avoid a large bill at tax time.

How to report Social Security on your federal return

Social Security benefits are reported on IRS Form 1040 using Schedule 1 (Additional Income and Adjustments to Income). You will receive a Form SSA-1099 each January showing the total benefits you received in the previous year. Use this form to fill out your tax return.

If you received benefits from the Railroad Retirement Board instead of Social Security, you will receive Form RRB-1099 and should report that income on your federal return as well. The process is the same: the amount goes on your return, and the IRS applies the combined income formula to determine whether any portion is taxable.

You do not report Social Security benefits on your California state return at all. California's Form 540 does not have a line for Social Security income because it is exempt from state tax.

Withholding federal tax from your Social Security check

If you expect to owe federal income tax on your Social Security benefits, you can ask the Social Security Administration to withhold money from your monthly payment. You do this by completing Form W-4V (Voluntary Withholding Request) and submitting it to your local Social Security office or online through your my Social Security account.

You can choose to withhold 7 percent, 10 percent, 12 percent, or 22 percent of your monthly benefit. The withheld amount goes to the IRS as a federal income tax payment. This can help you avoid owing a large amount when you file your tax return.

You can change or stop withholding at any time. If you change your income situation — for example, if you return to work or receive a large distribution from a retirement account — you can adjust your withholding to match.

State tax credits and deductions you may still use

Although California does not tax Social Security benefits, you may still be able to claim other state tax benefits if your income is low enough. The Earned Income Tax Credit (EITC) and the California Child and Dependent Care Credit are available to low-income households, and Social Security income does not disqualify you.

If you are age 65 or older, you may also be able to claim the Senior Citizen Property Tax Postponement Program or other age-based benefits, depending on your home ownership and income. These programs use your total income (including Social Security) to determine whether you meet the income limit, but they do not tax the Social Security itself.

Check the California Franchise Tax Board website or speak with a tax preparer to see whether you meet the income limits for any credits or deductions. Many tax preparation services offer free filing for people over 60 with low to moderate income.

Frequently Asked Questions

Do I have to file a California state tax return if I only receive Social Security?

No. California does not tax Social Security, so you do not owe state income tax on those benefits alone. However, if you have other income — such as a pension, part-time wages, or investment earnings — you may need to file a state return depending on the amount.

Will my Social Security benefits affect my California Medicaid or other state benefits?

Social Security income does count toward the income limits for many state assistance programs, including Medicaid (Medi-Cal in California), CalFresh (food assistance), and subsidized housing programs. Even though California does not tax Social Security, these programs treat it as income for purposes of determining whether you meet their income thresholds.

What if I worked for a California state or local government and did not pay into Social Security?

If you receive a pension from a California government job where you did not pay Social Security taxes, the Windfall Elimination Provision (WEP) may reduce your Social Security benefit amount. This is a federal rule, not a California rule. California still does not tax whatever Social Security benefit you do receive, but the benefit itself may be lower than it would be otherwise.

Can I deduct my Social Security taxes from my California taxes?

You cannot deduct Social Security taxes on your California return because California does not tax Social Security benefits in the first place. At the federal level, you cannot deduct Social Security taxes either — they are withheld from your paycheck as a payroll tax, not an income tax.

Do I need to report my Social Security to California if I move out of state?

No. Social Security benefits are not reported to California for tax purposes because they are not taxed by the state. If you move to another state, check that state's tax rules — some states do tax Social Security benefits, while others do not.