The federal tax rate in California is the same as the federal tax rate in every other state. The IRS uses one national schedule of seven brackets—10%, 12%, 22%, 24%, 32%, 35%, and 37%—and the bracket you land in depends on your taxable income and filing status, not your zip code.1Internal Revenue Service. Federal Income Tax Rates and Brackets What makes California distinctive is the second layer: the state imposes its own income tax on top of the federal one, so your total tax picture is heavier than the federal rates alone suggest.
2026 Federal Income Tax Brackets
Federal income tax is progressive. Each slice of your income is taxed at the rate for the bracket it falls into, so you never pay your top rate on every dollar you earn. For tax year 2026, single filers face these thresholds:2Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill
- 10%: taxable income up to $12,400
- 12%: over $12,400 up to $50,400
- 22%: over $50,400 up to $105,700
- 24%: over $105,700 up to $201,775
- 32%: over $201,775 up to $256,225
- 35%: over $256,225 up to $640,600
- 37%: over $640,600
For married couples filing jointly, nearly every threshold is doubled:
- 10%: taxable income up to $24,800
- 12%: over $24,800 up to $100,800
- 22%: over $100,800 up to $211,400
- 24%: over $211,400 up to $403,550
- 32%: over $403,550 up to $512,450
- 35%: over $512,450 up to $768,700
- 37%: over $768,700
The IRS adjusts these numbers each year for inflation so that a cost-of-living raise doesn’t push you into a higher bracket on its own.
How the Brackets Actually Apply to Your Income
Your top bracket is your marginal rate, not your overall rate. A single California resident with $100,000 of taxable income pays 10% on the first $12,400, 12% on the portion between $12,400 and $50,400, and 22% on the rest. The effective rate—total tax divided by taxable income—always comes in below the marginal rate.
Filing status moves the thresholds. The five options are Single, Married Filing Jointly, Married Filing Separately, Head of Household, and Qualifying Surviving Spouse. Head of Household brackets sit between single and joint. Married Filing Separately generally produces the least favorable brackets and locks you out of several credits, so it tends to make sense only for specific reasons such as separating liability from a spouse’s tax debt.
Deductions That Shrink the Income Being Taxed
Before the brackets apply, you subtract deductions from your gross income. You pick either the standard deduction or itemized deductions, whichever is larger.
Standard Deduction
For tax year 2026, the standard deduction is $16,100 for single filers and those married filing separately, $32,200 for married couples filing jointly, and $24,150 for heads of household.2Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill Most filers take it.
Itemized Deductions and the SALT Cap
Itemizing lets you deduct specific expenses like mortgage interest, charitable contributions, and state and local taxes paid.3Internal Revenue Service. Credits and Deductions for Individuals For California residents, the state and local tax (SALT) deduction cap matters more than it does in low-tax states. The 2026 maximum is $40,400 for most filers and $20,200 for those married filing separately, and the cap phases down for modified adjusted gross income above $505,000, eventually dropping to $10,000 at the top end.4Office of the Law Revision Counsel. 26 USC 164 – Taxes If your California income tax plus property tax exceeds the cap, the excess is not deductible on your federal return.
Health Savings Accounts
If you have a high-deductible health plan, HSA contributions come off your income before the brackets apply. The 2026 limits are $4,400 for individual coverage and $8,750 for family coverage.5IRS.gov. Expanded Availability of Health Savings Accounts Under the One, Big, Beautiful Bill Act – Notice 2026-5
Credits That Cut Your Tax Bill Directly
Credits are more powerful than deductions. A deduction lowers the income the brackets act on; a credit subtracts dollar for dollar from the tax you owe.
The Child Tax Credit is worth up to $2,200 per qualifying child under 17 for tax year 2026, with up to $1,700 refundable so you can receive it even if you owe no federal income tax. The credit phases out at higher incomes.2Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill
The Earned Income Tax Credit targets low-to-moderate-income workers. The amount scales with earned income, filing status, and number of qualifying children, and it is fully refundable. Workers without children can qualify for a smaller version.6Office of the Law Revision Counsel. 26 USC 32 – Earned Income
The American Opportunity Tax Credit is worth up to $2,500 per eligible student for the first four years of higher education. The full credit requires modified adjusted gross income under $80,000 for single filers or $160,000 for joint filers, with a partial credit available up to $90,000 and $180,000 respectively.7Internal Revenue Service. Education Credits – AOTC and LLC
The Used Clean Vehicle Credit has income limits of $150,000 for joint filers, $112,500 for heads of household, and $75,000 for other filers.8Internal Revenue Service. Used Clean Vehicle Credit
Payroll Taxes You Pay Alongside Income Tax
Income tax is not the only federal tax that comes out of your earnings. Employees have FICA withheld from each paycheck at a combined 7.65%, split into 6.2% for Social Security and 1.45% for Medicare, with the employer matching that amount. For 2026, Social Security tax applies only to the first $184,500 in wages; Medicare tax applies to all wages with no cap.9Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet
Self-employed Californians pay both halves, for a combined 15.3% self-employment tax. You can deduct half of that when calculating your adjusted gross income, which lowers the income the federal brackets apply to.
High earners owe an additional 0.9% Medicare tax on wages or self-employment income above $200,000 for single filers or $250,000 for married couples filing jointly. Employers do not match it, and it is not deductible.10Internal Revenue Service. Topic No. 560 – Additional Medicare Tax Those thresholds are not unusual for California professionals or dual-income households.
Capital Gains Rates
Investment income follows a separate schedule. Short-term capital gains, from assets held one year or less, are taxed at your ordinary bracket rates. Long-term capital gains, from assets held more than a year, get preferential rates of 0%, 15%, or 20%, depending on taxable income.
For single filers in 2026, the 0% rate covers taxable income up to $49,450, the 15% rate applies from there up to $545,500, and the 20% rate takes over above that. For married couples filing jointly, the thresholds are $98,900 and $613,700.11IRS.gov. 2026 Adjusted Items – Rev. Proc. 2025-32
A 3.8% Net Investment Income Tax piles on when modified adjusted gross income exceeds $200,000 for single filers or $250,000 for joint filers.12Internal Revenue Service. Topic No. 559 – Net Investment Income Tax Add that to the top long-term rate and the highest federal tax on long-term gains reaches 23.8%.
What California Adds on Top
California layers its own progressive income tax over the federal one, with ten brackets running from 1% to 13.3%. The top rate includes a 1% surcharge for mental health services on income above $1 million, and it is the highest marginal state income tax rate in the country.
California taxes wages, investment income, and retirement distributions. Unlike the federal system, it does not give long-term capital gains a preferential rate. A top-bracket California resident can face a combined marginal rate above 50% on ordinary income (37% federal plus 13.3% state) and above 37% on long-term capital gains (23.8% federal plus 13.3% state).
This is also where the SALT cap bites. Because California’s income and property taxes commonly exceed the $40,400 federal limit, residents often cannot deduct the full amount they pay the state, and their real federal burden runs higher than the bracket math alone would show.
Filing Deadlines, Extensions, and Late Penalties
Individual federal returns for tax year 2025 are due April 15, 2026.13Internal Revenue Service. IRS Opens 2026 Filing Season Filing Form 4868 by that date gives you an automatic six-month extension to October 15, 2026.14IRS.gov. Form 4868 – Application for Automatic Extension of Time to File U.S. Individual Income Tax Return The extension only buys time to file. Any tax owed is still due April 15, and unpaid balances accrue interest.
Two penalties can hit a late taxpayer at once. The failure-to-file penalty is 5% of unpaid taxes for each month or partial month a return is late, capped at 25%.15Internal Revenue Service. Collection Procedural Questions The failure-to-pay penalty is 0.5% per month, also capped at 25%.16Internal Revenue Service. Failure to Pay Penalty Filing on time even when you can’t pay in full cuts the more expensive of the two. The IRS offers installment agreements when a full payment isn’t possible.