California State Income Tax Filing
1% to 13.3%
Top marginal rate
13.3% including the 1% surcharge above $1 million
Brackets
Nine graduated bands before the surcharge
Standard deduction
$5,540 single / $11,080 joint — far below the federal figure
Capital gains
Taxed as ordinary income, with no preferential rate
California income tax at a glance
California has the highest top marginal income tax rate in the country and one of the most aggressive approaches to residency, which is a combination worth understanding before you file. The rate schedule is genuinely graduated — nine brackets before the surcharge — so a mid-career salary lands nowhere near the headline 13.3%. What catches people is not the rate but the sourcing: California taxes residents on worldwide income and non-residents on California-source income, and it applies a facts-and-circumstances test to residency rather than a day count. If you moved in or out during the year, hold RSUs vested partly while you lived elsewhere, or work remotely for a California employer from another state, the question of how much of your income California can reach is a real one and not something software resolves for you.
California tax rates
| Rate | Taxable income |
|---|---|
| 1% | $0 – $11,079 |
| 2% | $11,079 – $26,264 |
| 4% | $26,264 – $41,452 |
| 6% | $41,452 – $57,542 |
| 8% | $57,542 – $72,724 |
| 9.3% | $72,724 – $371,479 |
| 10.3% | $371,479 – $445,771 |
| 11.3% | $445,771 – $742,953 |
| 12.3% | $742,953 – $1,000,000 |
| 13.3% | $1,000,000 and over |
California tax rates for single filers: 1% from $0 to $11,079; 2% from $11,079 to $26,264; 4% from $26,264 to $41,452; 6% from $41,452 to $57,542; 8% from $57,542 to $72,724; 9.3% from $72,724 to $371,479; 10.3% from $371,479 to $445,771; 11.3% from $445,771 to $742,953; 12.3% from $742,953 to $1,000,000; 13.3% above $1,000,000.
California tax rates for married filing jointly: 1% from $0 to $22,158; 2% from $22,158 to $52,528; 4% from $52,528 to $82,904; 6% from $82,904 to $115,084; 8% from $115,084 to $145,448; 9.3% from $145,448 to $742,958; 10.3% from $742,958 to $891,542; 11.3% from $891,542 to $1,000,000; 12.3% from $1,000,000 to $1,485,906; 13.3% above $1,485,906.
- Standard deduction
- $5,540 single · $11,080 joint
- Personal exemption
- Structured as a credit — $153 single, $306 joint, $153 per dependent
Rates and thresholds as of . State legislatures change these mid-year and several states index brackets annually — check against California Franchise Tax Board before relying on a figure.
What to watch out for in California
- California does not have a reduced rate for long-term capital gains. A stock sale that qualifies for 15% federally is taxed at your full California marginal rate, which is the single most commonly missed part of a California tax bill.
- The state standard deduction is roughly a third of the federal one, so many people who take the standard deduction federally are better off itemising for California. The two decisions are separate.
- California also levies a state disability insurance contribution on wages, withheld by your employer and shown separately on your payslip. It is not income tax and is not part of the rates above.
- Residency is decided on where your closest connections are, not on a fixed number of days. Keeping a California home, licence or dependants in the state while working elsewhere is often enough to keep you a resident.
If you still hold anything in India, California is the hardest state to be resident in
California taxes residents on worldwide income, and it gives no credit at all for income tax paid to a foreign country. The regulation governing its credit for taxes paid elsewhere defines the qualifying jurisdictions as US states, the District of Columbia and US possessions, and states expressly that the term does not include foreign countries. So the relief you rely on federally has no California equivalent.
That combination produces a result most people do not expect. Your NRO interest, your rent from a flat in Pune, your gain on an Indian share sale — all of it is taxable by California if you are a resident, at a rate up to 13.3%, with the Indian tax already deducted at source giving you nothing back. Federally the foreign tax credit on Form 1116 largely neutralises the Indian tax. At the California layer it simply is not available, so the same rupee genuinely is taxed twice.
| Compared on | Federal return | California return |
|---|---|---|
| Indian income taxable? | Yes, if resident | Yes, if resident |
| Credit for Indian tax paid | Yes, via Form 1116 | No — foreign countries excluded |
| India-US treaty relief | Available | California is not a party to it |
| Article 21(2) student deduction | Available on Form 1040-NR | No state equivalent |
| Long-term capital gain rate | Preferential | Taxed as ordinary income |
The student case is the one that catches people hardest, and it is a residency mismatch rather than a rate problem. California decides residency on closest connections; it does not ask what visa you hold or whether the IRS treats you as a non-resident alien. So an Indian student on F-1 who correctly files Form 1040-NR federally as an exempt individual is very often a full-year California resident for state purposes at the same time. Federal non-resident, state resident, same year, both correct.
Two practical consequences. First, if you are moving out of California and hold substantial Indian assets, the timing of a sale relative to the move matters more than it would for someone with only US income. Second, California is aggressive about departures — it looks at where your connections are rather than accepting a new address, so leaving needs to be genuine and documentable.
On an H-1B in California with income still coming from India? We prepare H-1B returns with Indian income.
Go deeper on the India side
These guides cover the federal treatment of Indian income and assets in detail. They apply wherever you live in the US — California sits on top of them.
- The Foreign Tax Credit and Form 1116The mechanism that actually stops you being taxed twice — and it does not work evenly. NRE interest is fully taxable in the US with no credit at all, because India exempted it. Plus the April-March year mismatch nobody warns you about.
- NRE, NRO and FCNR AccountsIndia taxes the three accounts three different ways and the US recognises none of those distinctions. What actually goes on your return, the April-March timing mismatch, and the currency rules only FCNR deposits raise.
- Indian Rental Income on a US ReturnYou declared the rent in India and paid Indian tax on it, so it feels handled. But India’s flat 30% deduction does not exist in the US, depreciation is mandatory here, and Indian property cannot use the 27.5-year period every calculator defaults to.
- Indian Mutual Funds and the PFIC ProblemPFIC status turns on the US income and asset tests applied to the fund — tests a pooled vehicle holding securities will often meet. What that means for your SIPs, why the default regime is the punitive one, why the QEF election is usually closed to you, and how many Form 8621s you may owe.
- The India-US Tax TreatyIt does not stop the US taxing your Indian income — a saving clause preserves that. What the treaty really provides, why the foreign tax credit is the actual mechanism, and the one benefit that is unique to India.
- RSUs and ESPP Across India and the USVesting is the taxable event, and if you moved countries mid-vesting the income splits on a day count over the grant-to-vest period — a split that locks on the vesting date and cannot be changed afterwards.
- Selling Property in IndiaThe gain arises on the sale, not when you bring the money over. How the dollar basis puts exchange movement inside your gain, why India’s indexation gives you nothing here, and the home-sale exclusion that can reach an Indian flat — for about three years after you move out.
- H-1B Tax Filing ChecklistYou are on H-1B and it is filing season. Which residency status does this year fall into, what does that change, and which of the W-2, equity, India-side and state items on the list actually apply to you?
- F-1 and OPT Tax Filing ChecklistDo you have to file at all if you earned nothing, are you a nonresident this year or not, and was your employer right to withhold social security on your OPT pay? The three questions students actually arrive with.
Forms and deadlines
- Which form
- Form 540 for residents, Form 540NR for non-residents and part-year residents
- Deadline
- Aligns with the federal deadline, and California grants an automatic filing extension without a form.
- State authority
- California Franchise Tax Board
Federal deadlines are separate from state ones. Our US tax deadlines page covers the federal calendar, and the federal tax brackets apply on top of whatever California charges.
Want the arithmetic done for you? The California state tax calculator applies the schedule above to a salary and shows the result band by band.
Where these figures come from
Rates, bracket floors, standard deductions and exemptions are taken from the compilation below, stated as of January 1, 2026 and built from state statutes, forms and instructions. The state authority is always the final word on your own position.
Reviewed by Teja K, CPA · last reviewed . General information, not tax advice for your situation. State tax law changes frequently — confirm before acting. How we research and review this.
California tax questions
What is the California state income tax rate?
California uses nine graduated brackets running from 1% to 12.3%, with an additional 1% mental health services surcharge on taxable income above $1 million, giving a top marginal rate of 13.3%. As with federal tax the rates are marginal, so reaching a bracket does not apply that rate to your whole income. Figures are as of January 1, 2026.
Do I have to file a California return if I moved during the year?
Almost certainly yes, on Form 540NR as a part-year resident. You are taxed on all income received while you were a California resident plus any California-source income from the rest of the year. Allocating income across the two periods correctly — particularly bonuses, RSU vesting and severance that straddle the move — is where part-year returns go wrong, and it usually goes wrong in California's favour.
I work remotely for a California company from another state. Do I owe California tax?
Generally the source of wage income is where the work is physically performed, so if you never work in California the wages are usually not California-source. That said, your employer may withhold California tax anyway, in which case you file a non-resident return to recover it. Trips into the state for work create genuinely California-source income for those days. This is one of the most frequently misunderstood positions and worth getting right rather than assuming.
Does California tax capital gains at a lower rate?
No. Long-term and short-term gains are both taxed as ordinary income at your full marginal rate. A gain taxed at the federal 15% long-term rate can face a California rate approaching double that, which materially changes the after-tax result of a sale. Planning the timing of a large sale around a state move is a real consideration, and one California scrutinises.
Can non-residents claim the California standard deduction?
Part-year and non-resident filers use Form 540NR, which prorates deductions and credits based on the ratio of California income to total income rather than granting them in full. The mechanics differ from the federal treatment of non-residents, so a position that is correct on your federal return is not automatically correct for California.
Does California give credit for income tax I already paid in India?
No. This is the single most expensive difference between your federal and California returns. The regulation governing California's credit for taxes paid to another state defines that term as covering US states, the District of Columbia and US possessions, and states that it does not include foreign countries. So TDS deducted on your NRO interest, or Indian tax paid on rent or a share sale, produces a federal foreign tax credit and no California relief whatever. If you are a California resident with meaningful Indian income, budget for a genuine second layer of tax on it rather than assuming the treaty covers you — California is not a party to the treaty and is not bound by it.
I am an Indian student on F-1 in California filing Form 1040-NR. Am I a California resident?
Quite possibly yes, and the two answers are independent of each other. Federal residency for an F-1 student turns on the exempt-individual rules, which is why you correctly file Form 1040-NR. California residency turns on where your closest connections are — where you live, study, bank and keep your belongings. Nothing in that test refers to your immigration status, so living and studying in California all year generally makes you a California resident even while the IRS treats you as a non-resident alien. Practically that means a full-year Form 540 alongside your federal 1040-NR. It also means the one benefit unique to Indian students — the Article 21(2) standard deduction under the US-India treaty — does nothing for your California return, because California is not a party to the treaty and grants no equivalent. Your Indian bank interest is a separate question again, and it depends on whether California treats you as a resident for the year.
We file California returns alongside your federal
Get your California return filed properly
Federal returns from $19.99, state returns from $29.99. Multi-state and part-year situations are what we do most of, so bring us the complicated year.