Yes, California has a state income tax, and it is one of the highest in the nation

California taxes your income at rates that range from 1% to 13.3%, depending on how much you earn. The state applies these rates to wages, self-employment income, investment gains, and retirement distributions. Unlike some states that have no income tax at all, California funds its schools, infrastructure, and social programs largely through this tax.

The tax brackets change each year, and California adjusts them for inflation. Your actual rate depends on your filing status — single, married filing jointly, head of household, or married filing separately — and your total taxable income for the year. Most people pay through payroll withholding, but self-employed workers and those with investment income often owe estimated taxes throughout the year.

Key Takeaways

  • California's income tax rates range from 1% to 13.3%, with the highest rate explore to income above $680,000 for single filers in 2024.
  • The state taxes wages, self-employment income, capital gains, and retirement withdrawals, though some retirement income has special rules.
  • You can reduce your taxable income through deductions like the standard deduction, mortgage interest, and charitable contributions.
  • If you move out of California, you may still owe tax on income earned while you were a resident, and the state has specific rules about what counts as residency.

How California income tax brackets work

California uses a progressive tax system, meaning you pay a higher percentage only on income that falls within each bracket. For the 2024 tax year, a single filer pays 1% on the first $10,099 of taxable income, then 2% on income between $10,099 and $23,942, and so on, up to 13.3% on income over $680,000. The brackets are wider for married couples filing jointly.

The state publishes new brackets each October for the following tax year. These adjustments account for inflation, so the dollar amounts shift annually even if tax rates stay the same. You can find the current brackets on the California Franchise Tax Board website, which is the state agency that collects income tax.

Your filing status matters because it determines which bracket applies to your income. A married couple filing jointly reaches the highest bracket at a much higher income level than a single person does. If you are married but file separately, you use the same brackets as a single filer, which usually results in a higher total tax.

What income California taxes and what it does not

California taxes most forms of income: wages and salaries, self-employment income, rental income, capital gains, interest, and dividends. If you receive a distribution from a traditional IRA or 401(k), that counts as taxable income in the year you withdraw it. Pensions and annuities are also taxable, though some retirement income has partial exemptions.

Social Security benefits are not taxed by California, even though the federal government may tax them. Certain military pensions and some disability payments have exemptions as well. If you are over 59½ and withdraw from a Roth IRA, those withdrawals are tax-free in California just as they are federally.

Long-term capital gains — profits from selling stocks, real estate, or other assets you held for more than a year — are taxed as ordinary income in California, unlike the federal system, which has preferential rates for long-term gains. This is one reason California's top earners often face a combined federal and state tax rate above 50% on investment income.

Deductions and credits that lower your California tax bill

California allows you to claim either the standard deduction or itemize your deductions. For 2024, the standard deduction is $5,202 for single filers and $10,404 for married couples filing jointly. These amounts increase slightly each year. If your deductible expenses — mortgage interest, property taxes, charitable donations, and medical expenses — exceed the standard deduction, itemizing may save you more tax.

The state also offers tax credits, which reduce your tax dollar-for-dollar rather than reducing your taxable income. The California Earned Income Tax Credit (CalEITC) is available to low- and moderate-income workers. The Child and Dependent Care Credit helps pay for childcare expenses. Unlike the federal Child Tax Credit, California's version does not provide a refund if the credit exceeds your tax liability, so you only benefit up to the amount you owe.

Some income sources have their own deductions. If you are self-employed, you can deduct half of your self-employment tax, home office expenses, and business supplies. Teachers can deduct up to $250 in classroom supplies. Educators and certain other professionals may also deduct professional development costs.

How payroll withholding and estimated taxes work

If you are a W-2 employee, your employer withholds California income tax from each paycheck based on the form you fill out when you are hired. You can adjust your withholding by completing a new Form W-4 at any time — if you expect a large refund, you may want to increase your withholding so less money is withheld and you have more take-home pay during the year.

Self-employed workers and those with significant investment income usually cannot rely on payroll withholding. Instead, you pay estimated taxes four times a year: April 15, June 15, September 15, and January 15. Each payment covers roughly one quarter of your expected annual tax. If you underpay, you may owe a penalty when you file your return, even if you ultimately paid enough tax overall.

You can use the California Franchise Tax Board's online calculator to estimate your withholding or quarterly payments. If your income changes significantly during the year, you can adjust your estimated payments for the remaining quarters rather than waiting until you file your return.

What happens if you move out of California

California taxes you as a resident on all income you earn while you live in the state, regardless of where the income comes from. If you move out of California, you are no longer a resident and owe California tax only on income from California sources — rental income from property you own there, for example, or income from a business you operate there.

The state defines residency based on where you spend the most time and where your permanent home is located. If you move to another state but still own a home in California and spend significant time there, the Franchise Tax Board may argue you are still a resident. This is a common dispute, and the state has specific rules about what counts as a permanent home and how many days you can spend in California without triggering residency.

If you are moving out of state, file a nonresident return for the year you leave, reporting only California-source income. Keep documentation of your move — a lease or purchase agreement in your new state, utility bills, and a record of days spent in each location — in case the state questions your residency status later.

Filing your California return and where to find forms

Most California residents file using Form 540, the California resident income tax return. If you are a nonresident or part-year resident, you use Form 540-NR. Both forms are available on the California Franchise Tax Board website, along with detailed instructions and worksheets for calculating specific deductions and credits.

You can file by mail, but the Franchise Tax Board encourages electronic filing through approved software or a tax professional. E-filing is faster, reduces errors, and you receive your refund more quickly. If you cannot afford to pay a tax professional, the Franchise Tax Board's Free Tax Program offers free preparation through certified volunteers at community sites throughout the state.

The important date to file is April 15 unless that date falls on a weekend or holiday, in which case it moves to the next business day. If you cannot file by then, you can request an extension, but extensions only delay filing — they do not delay payment. If you owe tax, you should pay by April 15 to avoid penalties and interest, even if you file late.

Frequently Asked Questions

Do I have to file a California return if I live in another state?

No, unless you earned income from California sources during the year. If you worked in California for part of the year and then moved, you file a part-year resident return reporting only the income you earned while you lived there. If you own rental property or a business in California but live elsewhere, you file a nonresident return reporting that California-source income.

Can I deduct federal income tax from my California return?

No. California does not allow you to deduct federal income tax as an itemized deduction. You can deduct state income tax, local taxes, and property taxes up to $10,000 total on your federal return, but California does not offer a reciprocal deduction for federal taxes paid.

What if I disagree with the California Franchise Tax Board about how much I owe?

You can file a protest with the Franchise Tax Board within 30 days of receiving a notice of tax due. The protest must explain why you believe the assessment is wrong and include supporting documents. If the Franchise Tax Board denies your protest, you can appeal to the California Tax Court or the State Board of Equalization, depending on the type of dispute.

Is there a way to reduce my California income tax if I am retired?

Social Security is not taxed in California. Some military pensions and federal employee pensions have partial exemptions. If you are over 59½, may have access to retirement account withdrawals are taxed as ordinary income, but you can manage the timing of withdrawals to stay in a lower bracket. Roth conversions and charitable giving strategies may also help, though you should consult a tax professional about your specific situation.