California has the most progressive income tax of any state — nine brackets running from 1% to 12.3%, plus a 1% mental-health surcharge on income over $1 million that lifts the effective top rate to 13.3%, the highest in the nation. Here is how the brackets work for 2026, who pays what, and an important note on indexing.
A Note on 2026 Figures
California’s Franchise Tax Board (FTB) indexes its brackets and deductions annually to California inflation, and the final 2026 bracket dollar amounts are not published until late in the year. The schedule below shows the confirmed 2025 brackets (the ones you file by April 2026), which are the latest official figures. Expect the 2026 thresholds to rise by a low single-digit percentage when FTB releases them; the rates themselves do not change.
2026 California Tax Brackets (Single Filers)
These are the marginal rates — each rate applies only to income within that band.
| Taxable income (single) | Marginal rate |
|---|---|
| $0 – $10,756 | 1.0% |
| $10,756 – $25,499 | 2.0% |
| $25,499 – $40,245 | 4.0% |
| $40,245 – $55,866 | 6.0% |
| $55,866 – $70,606 | 8.0% |
| $70,606 – $360,659 | 9.3% |
| $360,659 – $432,787 | 10.3% |
| $432,787 – $721,314 | 11.3% |
| Over $721,314 | 12.3% |
Married-filing-jointly thresholds are roughly double the single amounts (for example, the 9.3% band starts at $141,212 for joint filers), and head-of-household thresholds fall in between.
The 1% Mental Health Surcharge (Now the Behavioral Health Services Tax)
On top of the brackets above, California adds 1% on taxable income over $1,000,000 — originally the Mental Health Services Tax, now referred to as the Behavioral Health Services Tax. This applies the same way to all filing statuses (the $1M threshold is not doubled for joint filers). Combined with the 12.3% top bracket, this produces California’s well-known 13.3% top marginal rate.
2026 Standard Deduction
California’s standard deduction is far smaller than the federal one. For 2026, FTB has set it at:
- $5,706 for single and married-filing-separately filers
- $11,412 for married filing jointly, head of household, and qualifying surviving spouse
(Source: California FTB.) If your itemized deductions exceed these amounts, you itemize on Schedule CA instead.
A Worked Example
Consider a single filer with $120,000 of California taxable income (after the standard deduction). The tax stacks bracket by bracket:
- 1% of $10,756 = $107.56
- 2% of $14,743 = $294.86
- 4% of $14,746 = $589.84
- 6% of $15,621 = $937.26
- 8% of $14,740 = $1,179.20
- 9.3% of ($120,000 − $70,606 = $49,394) = $4,593.64
- Total California tax ≈ $7,702
That is an effective rate of about 6.4%, even though the filer’s marginal rate is 9.3%. This gap between marginal and effective rate is a frequent point of confusion — only the last dollars are taxed at 9.3%.
How California Taxes Capital Gains
Unlike the federal system, California has no preferential rate for long-term capital gains. Gains are taxed as ordinary income at the same brackets above, up to 13.3%. This is a major consideration for anyone selling stock, RSUs, or real estate while a California resident.
Who Should Pay Attention
- High earners crossing the $1M line should factor in the extra 1% surcharge.
- Remote and relocating workers should remember California can tax income sourced to the state even after you move; trailing income like vested RSUs may still be partly California-taxable.
- Retirees benefit from one bright spot: California does not tax Social Security benefits, though it taxes other retirement income at ordinary rates.
To estimate your own California liability — including the surcharge and the latest standard deduction — run the numbers through the state income tax calculator or review the dedicated California brackets page.