# California Tax Calculator

Estimate your California state income tax with 2025 brackets. Calculate CA tax owed, SDI, effective rate, and marginal bracket for any filing status.

## What this calculates

Estimate your California state income tax using 2025 tax brackets. California has ten income tax brackets ranging from 1% to 13.3%, the highest top rate of any state. Enter your income and filing status to see your CA tax liability.

## Inputs

- **Annual Gross Income** ($) — min 0 — Your total annual income before deductions.
- **Filing Status** — options: Single, Married Filing Jointly, Head of Household — Your California state tax filing status.
- **CA Deductions** ($) — min 0 — CA standard deduction: $5,540 single, $11,080 married.

## Outputs

- **CA Taxable Income** — formatted as currency — Income subject to California state tax.
- **California State Tax** — formatted as currency — Estimated California income tax owed.
- **SDI Tax (1.1%)** — formatted as currency — State Disability Insurance tax on wages.
- **Effective CA Tax Rate** — formatted as percentage — Your actual California tax rate on total income.
- **Marginal CA Bracket** — formatted as percentage — CA tax rate on your last dollar of income.
- **Income After CA Tax** — formatted as currency — Your income after California state tax and SDI.

## Details

California has the highest top marginal income tax rate in the country at 13.3%, which applies to income over $1 million for single filers. But most Californians pay much less. The brackets start at just 1% on the first $10,756 and climb gradually through nine intermediate rates before reaching the top.

A single filer earning $100,000 with the standard $5,540 deduction pays about $5,200 in California income tax, for an effective rate of roughly 5.2%. That is well below the top rate because most income is taxed in lower brackets.

California also charges State Disability Insurance (SDI) at 1.1% on wages up to $161,391. This is withheld from your paycheck alongside state income tax and adds to your total California tax burden. SDI funds short-term disability and paid family leave benefits.

The California standard deduction is relatively small: $5,540 for single filers and $11,080 for married filing jointly. This is much lower than the federal standard deduction, which means more of your income is subject to state tax. California allows itemized deductions but conforms to many federal limitations, including the $10,000 SALT deduction cap.

## Frequently Asked Questions

**Q: What are the California income tax rates?**

A: California has ten income tax brackets for 2025 ranging from 1% to 13.3%. The rates are: 1%, 2%, 4%, 6%, 8%, 9.3%, 10.3%, 11.3%, 12.3%, and 13.3%. The top 13.3% rate applies to income over $1 million (single). An additional 1% Mental Health Services Tax applies to income over $1 million, which is included in the 13.3% top rate.

**Q: Does California tax capital gains?**

A: Yes. California taxes capital gains as ordinary income, with no preferential rate. This means long-term capital gains are taxed at up to 13.3% at the state level, compared to the federal rate of 0%, 15%, or 20%. Combined federal and state capital gains tax in California can reach 33.3% for high earners, making it one of the most expensive states for investment income.

**Q: What is California SDI tax?**

A: State Disability Insurance (SDI) is a mandatory payroll tax of 1.1% on wages up to $161,391 (2025). The maximum SDI tax is about $1,775 per year. SDI funds temporary disability benefits and the Paid Family Leave program. It is withheld from employee wages; employers do not pay SDI. Self-employed workers can opt in through the Elective Coverage program.

**Q: How does California tax compare to other states?**

A: California has the highest top income tax rate (13.3%) of any state. By comparison, Texas, Florida, and Nevada have no state income tax. Oregon's top rate is 9.9%, New York's is 10.9%. However, California's high rate only kicks in above $1 million. For a $100,000 earner, the effective rate is about 5%, which is comparable to many other states with lower top rates.

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Source: https://vastcalc.com/calculators/finance/california-tax
Category: Finance
Last updated: 2026-04-08