California has the highest top marginal income tax rate in the entire country: 13.3%. That headline number scares plenty of people considering a move to the state. But it applies to a tiny fraction of earners, and most Californians pay a far lower effective rate than that number suggests. Here’s the real math.
California’s State Tax Brackets
California uses 9 progressive brackets for single filers, before an additional surcharge on very high earners:
| Taxable Income | State Rate |
|---|---|
| $0 – $10,756 | 1% |
| $10,756 – $25,499 | 2% |
| $25,499 – $40,245 | 4% |
| $40,245 – $55,866 | 6% |
| $55,866 – $70,606 | 8% |
| $70,606 – $360,659 | 9.3% |
| $360,659 – $432,787 | 10.3% |
| $432,787 – $721,314 | 11.3% |
| Above $721,314 | 12.3% |
On top of this, California adds a 1% Behavioral Health Services Tax (formerly the Mental Health Services Tax) on all taxable income above $1,000,000, bringing the effective top rate to 13.3%. This surcharge applies the same way to every filing status, without doubling the threshold for joint filers the way most brackets do.
California’s Standard Deduction Is Surprisingly Small
California’s standard deduction for single filers is just $5,706, dramatically lower than the federal standard deduction of $16,100. As a result, Californians typically pay state tax on a meaningfully larger portion of their income than they pay federal tax on, which catches many new residents off guard when comparing their state and federal tax bills side by side.
Real Example: $85,000 Salary in California
Let’s calculate the full picture.
- Gross salary: $85,000
- Federal tax: $9,870
- FICA: $6,502.50
- California state tax: $3,916.70
- California SDI (State Disability Insurance): $935
Total tax: $21,224.20
Take-home pay: $85,000 − $21,224.20 = $63,775.80/year, or approximately $5,315/month
That works out to a California state effective rate of just 4.6%, despite the state’s headline 13.3% top rate, since almost all of this earner’s income falls in the lower brackets before reaching anywhere near the top.
What Is California SDI?
Unlike most states, California charges a separate State Disability Insurance (SDI) payroll tax, currently 1.1% on all wages with no cap, funding short-term disability and paid family leave benefits. This tax applies on top of, not instead of, standard state income tax, and is a detail that trips up people comparing California’s tax burden to states without an equivalent program. The California Employment Development Department’s SDI overview covers what this tax actually funds.
Why the Top Rate Rarely Applies
The 13.3% top rate only kicks in above $1,000,000 in taxable income, a threshold that applies to a very small percentage of California taxpayers. In fact, the Tax Foundation’s analysis of California’s tax structure consistently notes that most Californians, even fairly high earners, pay effective rates well below the headline top rate, since the state’s genuinely steep brackets are concentrated at the very top of the income distribution.
California Doesn’t Cap SALT Deductions
One notable state-specific quirk: unlike federal rules, which cap the state and local tax (SALT) deduction, California places no cap on how much property tax can be deducted on the state return itself. This mainly benefits higher-income homeowners in expensive markets who pay substantial property tax, since they can deduct more on their state return than federal rules currently allow on the federal return.
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Frequently Asked Questions
How much tax will I pay on $85,000 in California?
On an $85,000 salary in California, estimated total tax (federal, FICA, state tax, and SDI) is approximately $21,224, for take-home pay of roughly $63,776 per year, or about $5,315 per month.
Is California’s 13.3% tax rate really that high?
The 13.3% rate is real, but it only applies to taxable income above $1,000,000, affecting a very small share of taxpayers. Most Californians pay an effective state tax rate well below that headline figure, often in the 3–7% range depending on income.
What is California SDI and why is it deducted from my paycheck?
State Disability Insurance is a mandatory California payroll tax, currently 1.1% of wages with no cap, funding short-term disability and paid family leave benefits. It’s separate from, and in addition to, standard state income tax.
Why is California’s standard deduction so much lower than federal?
California has historically set its standard deduction well below the federal amount — $5,706 for single filers versus $16,100 federally — meaning a larger portion of income becomes state-taxable than federally taxable for the same person.
Does California tax Social Security benefits?
No, California doesn’t tax Social Security retirement benefits at the state level, making it one of the more favorable states for retirees on this specific point, even though its overall income tax rates run higher than many other states.
What income level triggers California’s top tax bracket?
The 12.3% statutory top bracket applies to taxable income above roughly $721,314 for single filers, with the additional 1% surcharge (bringing the effective rate to 13.3%) applying separately to all taxable income above $1,000,000.