California's tax burden comes from three main sources: the highest state income tax rates in the nation, a sales tax that varies by county, and property taxes that reset when you buy a home

California has the highest top marginal income tax rate of any state—13.3 percent on the highest earners, plus the federal rate on top of that. The state also charges sales tax ranging from 7.25 to 10.75 percent depending on your county and city, and property taxes that can jump significantly when you sell or refinance. Together, these create a tax environment that feels steeper than most other states, especially if you earn above the median income or own property.

The reasons are historical and structural. California's tax system was built to fund schools, infrastructure, and services across a state with nearly 40 million people. Over decades, voter-approved measures and legislative changes have added layers to the tax code. Understanding where each tax comes from and how it works helps explain why your California tax bill looks different from someone living in a neighboring state.

Key Takeaways

  • California's 13.3 percent top income tax rate is the highest in the nation, applied to income above roughly $680,000 for single filers in 2024.
  • Sales tax varies by location because counties and cities add their own rates on top of the state's 7.25 percent base, reaching as high as 10.75 percent in some areas.
  • Property taxes reset to current market value when you buy a home, meaning your tax bill can jump thousands of dollars after a sale, even if you stay in the same house.
  • Proposition 13, passed in 1978, capped property tax increases at 2 percent per year for existing owners, which is why long-time homeowners pay far less than new buyers in the same neighborhood.
  • California funds education, healthcare, and social services at higher levels than many states, which requires higher tax revenue to support.

How California's income tax brackets work

California uses a progressive tax system with 12 tax brackets. The lowest rate is 1 percent on the first roughly $10,000 of income, and the rate increases as your income rises. At the top, you pay 13.3 percent on income above roughly $680,000 (for single filers in 2024; the threshold is higher for married filers and changes annually with inflation).

This means most Californians pay somewhere between 1 and 9.3 percent on their income. Only high earners hit the 13.3 percent rate. However, because California's brackets are narrower than federal brackets, you can move into higher tax brackets faster than you would at the federal level. A single person earning $100,000 pays roughly 9.3 percent state income tax; someone earning $200,000 pays closer to 10.3 percent. The jump feels sharper than in states with fewer brackets or wider income ranges per bracket.

Why sales tax varies so much by location

California's base sales tax is 7.25 percent, but that is rarely what you actually pay. Counties add their own rate (usually 0.5 to 2.25 percent), and cities can add more on top of that. A county might add 1 percent, and a city within it might add another 0.5 percent, bringing the total to 8.75 percent. Some areas reach 10.75 percent.

These local additions fund county and city services—transit, libraries, parks, and local infrastructure. When voters in a county or city approve a sales tax measure, it goes into effect when ready and applies to most purchases. This is why two people buying the same item in different California cities pay different amounts of tax. It also means your tax bill depends partly on where you shop, not just where you live.

Property taxes and Proposition 13

California's property tax system is unusual because of Proposition 13, passed by voters in 1978. Under Prop 13, your property tax is based on the purchase price of your home, not its current market value. Your tax bill can increase by no more than 2 percent per year, even if your home's value rises much faster.

This creates a stark difference between long-time homeowners and new buyers. A house purchased in 1990 for $200,000 might be worth $1.2 million today, but the owner pays property tax on roughly $200,000 (adjusted for 2 percent annual increases). A new buyer paying $1.2 million for the same house pays property tax on $1.2 million. The new buyer's annual property tax bill can be five to ten times higher, even though they own identical homes on the same street.

Property tax rates themselves are not especially high—roughly 0.76 percent of assessed value statewide—but because assessments reset at purchase price, the effective burden on new buyers is substantial. When you refinance a mortgage, your assessment does not reset, but it does reset when you sell or transfer ownership to anyone except a spouse or direct descendant.

Why California's tax revenue is so high

California's tax rates are high partly because the state spends more on education, healthcare, and social services than the national average. California funds K-12 schools through a combination of state income tax and local property tax. The state also runs Medicaid (called Medi-Cal in California) and funds numerous social programs. These services require revenue, and California chose to raise it through income and sales taxes rather than other methods.

Additionally, California's economy is large and concentrated in high-income sectors like technology, entertainment, and finance. This means a significant portion of state income tax comes from a relatively small number of high earners. When the stock market rises or tech companies perform well, state tax revenue spikes. When the economy contracts, revenue falls sharply. This volatility has led lawmakers to keep tax rates high during good years to build reserves for downturns.

How California compares to other states

California ranks among the highest in state income tax rates. Only Hawaii, Vermont, and Washington D.C. have higher top rates. However, many states have no income tax at all—including Texas, Florida, Nevada, and Washington. Those states fund services through sales tax, property tax, or other revenue sources instead.

On sales tax, California's average rate of around 8.6 percent is higher than the national average of 7.2 percent, but not the highest. Tennessee and Louisiana have higher average sales tax rates. On property tax, California's effective rate is lower than many states because Prop 13 limits increases for existing owners, but new buyers face steep assessments.

The overall tax burden—income, sales, and property combined—varies widely depending on your income level and whether you own property. A high-earning renter in California pays more in state income tax than a high earner in Texas, but a long-time homeowner in California may pay less in property tax than a homeowner in New Jersey or Illinois. The comparison depends on your specific situation.

Tax deductions and credits available to California residents

California allows you to deduct federal income tax paid, up to $10,000 per year (this limit was set by federal law and applies to state taxes as well). You can also deduct mortgage interest, charitable donations, and certain business expenses, similar to federal deductions. The state offers tax credits for things like dependent children, education expenses, and low-income renters.

If you work in California but live in another state, or vice versa, you may owe taxes to both states. California taxes residents on all income, regardless of where it is earned. If you moved out of California during the year, you may be able to claim part-year resident status, which can lower your tax bill. Keeping records of when you moved and where you worked is important if your residency status changes.

Frequently Asked Questions

Why does my property tax bill jump so much when I buy a home?

Proposition 13 resets your property tax assessment to the current purchase price. If the previous owner bought decades ago, they paid tax on a much lower value. Your assessment is based on what you paid, so your bill reflects current market value. After you buy, your tax can only increase 2 percent per year, even if the home appreciates.

Do I pay California income tax if I moved out of state?

California taxes you as a resident on all income if you lived there for most of the year. If you moved out partway through the year, you may file as a part-year resident and only pay tax on income earned while you lived in California. You will need to show when you moved and where you worked. Other states may also tax you on income earned within their borders.

Can I deduct state income tax on my federal return?

You can deduct state income tax paid, but the total deduction for state income tax, sales tax, and property tax combined is capped at $10,000 per year on your federal return. This limit applies regardless of how much you actually paid in state taxes. Many high-income Californians hit this cap.

Why is sales tax different in every city?

Cities and counties add their own sales tax rates on top of California's 7.25 percent base rate to fund local services like transit, libraries, and infrastructure. Each jurisdiction votes on whether to add a local tax and at what rate. This is why a purchase in one city costs more in tax than the same purchase a few miles away.

Do I have to pay California income tax on retirement income?

Yes, California taxes most retirement income, including Social Security benefits (though there is a limited exemption for some low-income retirees), pension income, and withdrawals from retirement accounts. If you move out of California after retiring, you generally do not owe California tax on income earned after you leave, but you may owe tax on income earned while you were a resident.