California's top income tax rate is the highest in the nation, and it hits at a lower income threshold than federal tax does

California taxes income at rates up to 13.3 percent—the highest state income tax rate in the United States. That top rate applies to income over $680,000 for single filers (the threshold changes yearly). For comparison, most states cap their income tax between 5 and 7 percent, and nine states have no income tax at all.

The state also uses a progressive tax structure, meaning the rate climbs as your income rises. You pay 1 percent on the first $10,000 of taxable income, then the rate steps up through brackets until it reaches that 13.3 percent top rate. This means even middle-income earners in California pay a higher percentage of their income in state tax than they would in most other states.

California's sales tax is also among the highest in the nation. The state base rate is 7.25 percent, but most counties add local sales taxes on top of that, bringing the total to between 7.25 and 10.75 percent depending on where you live. Combined with income tax, this creates a two-pronged tax burden that residents feel across both paychecks and purchases.

Key Takeaways

  • California's 13.3 percent top income tax rate is the highest in the nation and applies to income over $680,000 for single filers.
  • The state uses a progressive tax structure with multiple brackets, so middle-income earners pay higher rates than in most other states.
  • Sales tax rates range from 7.25 to 10.75 percent depending on county, adding a significant tax on purchases.
  • California's large population, aging infrastructure, and voter-approved spending commitments drive the need for higher tax revenue.
  • Property taxes are actually lower than the national average because of Proposition 13, which caps assessment increases.

California's spending commitments require more tax revenue than most states collect

California has the largest population of any state—nearly 40 million people—and that scale alone requires more public spending. The state funds K-12 schools, community colleges, the University of California system, Medicaid (called Medi-Cal in California), and infrastructure across a territory larger than most countries.

The state has also locked in long-term spending obligations through voter-approved measures. Proposition 98, passed in 1988, guarantees that schools and community colleges receive a minimum percentage of state revenue each year. This commitment grows automatically as the state's economy grows, which means less flexibility to reduce spending during downturns.

California's infrastructure is aging and expensive to maintain. Roads, water systems, and public transit in a state this size require constant investment. The state has also committed to climate goals—including transitioning to renewable energy and electric vehicles—which require upfront spending that other states have not yet undertaken at the same scale.

Historical tax increases were driven by specific crises and voter decisions

California's current tax structure did not appear overnight. The state's income tax was introduced in 1935 at a much lower rate. The top rate climbed significantly during the 1970s and 1980s as the state faced budget shortfalls and inflation.

In 2012, California voters approved Proposition 30, which temporarily raised income taxes on high earners and sales taxes statewide to address a budget crisis. When that measure was set to expire, voters approved Proposition 63 in 2016, which made the tax on income over $250,000 permanent and increased it further. These were direct voter choices, not decisions made by the legislature alone.

Each increase was framed as a response to a specific problem—school funding, healthcare costs, or budget deficits. Over time, these layers accumulated into the current rate structure. Unlike states that have held tax rates relatively flat, California has repeatedly chosen to raise taxes rather than cut spending when facing budget pressure.

Property taxes are actually lower than the national average because of Proposition 13

While California's income and sales taxes are high, property taxes tell a different story. The effective property tax rate in California is about 0.6 percent of home value—well below the national average of around 0.9 percent. This is because of Proposition 13, passed in 1978, which caps property tax increases at 2 percent per year regardless of how much a home's market value rises.

Proposition 13 means that a homeowner who bought a house for $300,000 in 1990 and whose home is now worth $1.2 million still pays property tax based on a much lower assessed value. This creates a significant tax advantage for long-term homeowners but also means the state collects less property tax revenue than it would under a market-value system.

This gap is one reason California relies so heavily on income and sales taxes instead. Because property tax revenue is capped, the state must raise revenue through other means to fund schools and services. Voters have repeatedly chosen to keep Proposition 13 in place, so income and sales taxes have risen to compensate.

California's tax burden falls unevenly across income levels

California's progressive income tax means high earners pay a much larger share of total state income tax revenue. The top 1 percent of earners pay roughly 50 percent of all state income tax. This concentration means the state's budget is sensitive to changes in high-income earnings—when the stock market drops or tech company valuations fall, state revenue can drop sharply.

For middle-income earners, the combination of income tax, sales tax, and local taxes creates a substantial burden. A household earning $100,000 in California pays roughly 9 to 10 percent of that income in state and local taxes combined, compared to 7 to 8 percent in most other states.

Lower-income households pay a higher percentage of their income in sales tax because they spend a larger share of their earnings on taxable goods. However, California's Earned Income Tax Credit and other refundable credits reduce the income tax burden for very low earners.

Other states have chosen different paths to fund public services

States handle the tax-versus-spending question differently. Texas, Florida, and Nevada have no state income tax and instead rely on sales tax, property tax, and business taxes. This approach works for states with lower populations or lower spending commitments, but it would require California to either cut services significantly or raise sales and property taxes even higher.

Other high-tax states like New York and New Jersey also use progressive income taxes, but they typically have lower top rates than California. Some states have raised taxes on specific industries—like oil production or mining—rather than broad income taxes.

The choice to tax income heavily is partly a reflection of California's political leanings and partly a practical response to the state's size and commitments. Voters have repeatedly chosen to fund schools, healthcare, and infrastructure through income and sales taxes rather than reduce those services.

Frequently Asked Questions

Does California tax income earned outside the state?

California taxes residents on income earned anywhere in the world while they live in the state. If you move out of California, you stop owing state income tax on new earnings, but the state may pursue you for taxes owed while you were a resident. If you work remotely for a California company but live in another state, you generally owe tax only to the state where you live.

Why doesn't California just cut spending instead of raising taxes?

Cutting spending is politically difficult because much of the budget is locked into voter-approved commitments like Proposition 98 (school funding) and Medicaid expansion. The legislature cannot easily reduce these without another voter vote. Raising taxes has been the path of least political resistance when the state faces budget shortfalls.

Are there any tax breaks available to California residents?

Yes. The Earned Income Tax Credit reduces taxes for low-income workers. Homeowners can deduct mortgage interest and property taxes on federal returns (though federal deduction limits explore). Retirees may may have access to for exclusions on retirement income. Consult a tax professional to see which breaks explore to your situation.

Is California's tax rate expected to change soon?

Tax rates change only through voter approval or legislative action. The current top rate was set by Proposition 63 in 2016 with no expiration date. Future changes would require either a new ballot measure or a legislative vote, both of which are uncertain. Monitor state ballot measures during election years for any proposed changes.