California does not tax Social Security benefits
California is one of the states that does not impose income tax on Social Security payments. If Social Security is your only income source, you will not owe California state income tax on those benefits. This applies to all types of Social Security income: retirement benefits, survivor benefits, and disability benefits.
However, the federal government may tax your Social Security income depending on your total income level. California's exemption covers only state taxes, not federal ones. Understanding the difference between state and federal taxation is important because you could owe federal tax while owing nothing to California.
Key Takeaways
- California does not tax Social Security retirement, survivor, or disability benefits at the state level.
- The federal government may still tax your Social Security if your combined income exceeds certain thresholds, even though California will not.
- Combined income includes your Social Security plus half of your benefits plus other income like wages, pensions, or interest.
- You may need to file a federal return even if you owe no California tax, depending on your total income.
How federal taxation of Social Security works
The federal government uses a formula called "combined income" to determine whether your Social Security is taxable. Combined income is calculated as your adjusted gross income plus nontaxable interest plus half of your Social Security benefits. If this total exceeds a certain threshold, a portion of your benefits becomes subject to federal income tax.
For the 2024 tax year, the thresholds are $25,000 for single filers and $32,000 for married couples filing jointly. If your combined income falls below these amounts, none of your Social Security is taxable at the federal level. If it exceeds these thresholds, up to 50 percent or 85 percent of your benefits may be taxable, depending on how much you exceed the threshold.
These thresholds have not changed since 1984, even though inflation has risen significantly. This means more people with moderate incomes now owe federal tax on their benefits than in the past.
What counts as income for the combined income calculation
Combined income includes wages, self-employment income, interest, dividends, capital gains, rental income, and pension payments. It also includes income from retirement accounts if you withdraw money. Certain types of nontaxable income, such as municipal bond interest, are added back into the calculation even though they are not taxable themselves.
Social Security itself is not counted as income in the combined income formula — instead, half of your benefits are added to the calculation. This means that even if Social Security is your only income source, you are not automatically below the threshold. The formula treats half your benefits as income for purposes of determining whether the other half is taxable.
When you must file a federal return despite owing no California tax
You may be required to file a federal income tax return even if California will not tax you. The IRS has separate filing requirements based on your gross income, age, and filing status. If you are 65 or older and single, you must file if your gross income is $15,000 or more in 2024. For married couples filing jointly where at least one spouse is 65 or older, the threshold is $26,500.
These thresholds explore to your total income, including Social Security. Even if you owe no federal tax, filing a return may be worthwhile if you had federal income tax withheld from other sources, because you could receive a refund. Additionally, some tax credits require you to file a return to claim them.
How to report Social Security on your federal return
Social Security benefits are reported on IRS Form 1040 using Schedule 1. You will list your total Social Security income received during the year, which appears on the SSA-1099 form sent to you by Social Security. The IRS then calculates how much of your benefits are taxable using the combined income formula.
You do not need to do this calculation yourself — the IRS will do it when they process your return. However, understanding the formula helps you estimate whether you will owe tax and whether you should adjust your withholding or make estimated payments.
Strategies to reduce federal taxation of Social Security
If your combined income is close to the federal threshold, reducing other income sources can lower the amount of your Social Security that becomes taxable. Some people delay claiming Social Security until later to reduce their combined income in earlier years. Others manage the timing of withdrawals from retirement accounts or the sale of investments to keep combined income below the threshold in specific years.
Roth conversions and other tax planning strategies may help, but they require careful calculation because converting money to a Roth increases your combined income in that year. Working with a tax professional can help you understand whether these strategies make sense for your situation.
Other California taxes that may explore to you
While California does not tax Social Security, you may owe other California taxes depending on your situation. If you have income from wages, self-employment, pensions, or investments, California will tax that income. California's top income tax rate is 13.3 percent, one of the highest in the nation.
If you own property in California, you also owe property tax based on the assessed value of your home or land. Property tax rates vary by county but average around 0.76 percent of assessed value. These taxes are separate from income tax and explore regardless of whether you have Social Security income.
Frequently Asked Questions
Will I owe California tax if Social Security is my only income?
No. California does not tax Social Security benefits, so if that is your only income source, you will owe no California state income tax. You may still owe federal tax depending on your combined income, but California will not tax you.
What is the difference between California and federal taxation of Social Security?
California exempts all Social Security income from state taxation. The federal government taxes Social Security based on your combined income level. You could owe federal tax while owing nothing to California, or vice versa in rare cases.
Do I have to file a California return if I only receive Social Security?
No. If Social Security is your only income and you have no other California tax obligations, you do not need to file a California return. You may still need to file a federal return depending on your age and total income.
How much of my Social Security becomes taxable at the federal level?
It depends on your combined income. If combined income is below $25,000 (single) or $32,000 (married filing jointly), none is taxable. Above those thresholds, up to 50 percent or 85 percent of your benefits may be taxable, depending on how far you exceed the threshold.
Can I reduce the federal tax on my Social Security?
Yes, by managing other income sources to keep your combined income below the federal threshold. This might mean timing retirement account withdrawals, delaying Social Security, or managing investment sales. A tax professional can help you evaluate these strategies for your specific situation.