TakeHome Pay
CalculatorHourlyBonusOvertimeNo Tax on OTNo Tax on TipsOffersIncome %Total CompTax Refund

California Bonus Paycheck Calculator

A bonus paid in California is withheld at the flat 22% federal supplemental rate in 2026 (37% on amounts above $1 million), plus FICA of 7.65% and California's graduated income tax (1% to 13.3%), with 1.3% CA SDI on top. Your final tax bill is settled when you file, not at withholding.

How are bonuses taxed in California?

In California, your employer withholds a flat 22% federal supplemental rate and 7.65% FICA, plus California's graduated income tax (1% to 13.3%) and 1.3% CA SDI, so roughly 30–35% of a bonus is typically withheld up front. Withholding isn't your final tax: at filing time a bonus is ordinary income, so any over-withholding comes back as a refund. Against the 3 states California borders, the same a $10,000 bonus is worth $6,017 here: Nevada keeps $1,018 more ($7,035), Arizona keeps $768 more ($6,785) and Oregon keeps $83 more ($6,100). Arizona, Nevada and Oregon are the only borders worth crossing for the tax alone.

Calculate your exact bonus take-home pay

Your bonus take-home

$2,941

from $5,000 bonusFor a $5,000 bonus · California · single

Take-home 59%Taxes 41%
Bonus amount$5,000
Federal tax−$1,100
State tax−$512
CA SDI−$65
Social Security−$310
Medicare−$73
Net bonus$2,941

Estimate based on 2026 federal and California tax rules updated Oct 2026 How we calculate

Your details

Taxation method

Most common: a flat 22% federal rate is withheld on the bonus.

More options Base salary

What a bonus is actually worth in California

On top of a $75,000 salary in California, here is what each extra dollar survives federal tax, California income tax, FICA and CA SDI in 2026:

BonusGrossCalifornia taxYou keepShare kept
$5,000 bonus$5,000$423$3,03060.6%
$10,000 bonus$10,000$888$6,01760.2%
$25,000 bonus$25,000$2,283$14,98059.9%

California takes about 8.9% of that money on top of the 22% federal marginal rate and 7.65% FICA, and CA SDI takes another 1.30%.

How California ranks on bonuses

Across all 50 states and DC, California ranks 51st for what a $10,000 bonus leaves in 2026. That is $548 less than the median state ($6,565).

The best outcome anywhere is $7,035 in Alaska and the other states with no wage income tax, $1,018 more than California keeps.

California bonuses against the states next door

Crossing a state line changes what the same bonus is worth without changing what you are paid. Here is a $10,000 bonus in California against the states it borders:

StateState income taxYou keepvs California
California$888$6,017—
Arizona$250$6,785$768 more
NevadaNone$7,035$1,018 more
Oregon$875$6,100$83 more

How California bonus withholding works

Short answer: your employer withholds a flat 22% for federal income tax (the supplemental rate), plus 7.65% for Social Security and Medicare, plus California withholding and 1.3% CA SDI on top: typically 30–35% of a California bonus withheld up front. Bonuses aren't actually taxed at a higher rate, though: at tax time they're ordinary income, and any over-withholding comes back in your refund. Here's how each piece works.

  • Federal supplemental rate: Most employers withhold federal income tax from bonuses at a flat 22%, $2,200 on a $10,000 bonus, or 37% above $1 million a year, regardless of your regular bracket.
  • California state tax: Bonus income is ultimately taxed through California's graduated income tax (1% to 13.3%). The calculator estimates the California share based on your inputs. The bonus also pays 1.3% CA SDI, as any wage does.
  • FICA taxes still apply: Social Security (6.2% up to the annual wage base) and Medicare (1.45%, plus 0.9% for high earners) come out of a bonus like any wage: $765 on $10,000.
  • Over-withholding is common: The flat 22% federal rate is often higher than your actual effective rate, and the difference comes back as a refund. In California the whole $10,000 nets $6,017 once state tax, FICA and CA SDI are in.

Your actual bonus tax depends on your total annual income, not the bonus alone: these figures assume a $75,000 California salary. Enter your own numbers above for an estimate that fits your situation.

Frequently Asked Questions

Typically 30–35%: a flat 22% federal supplemental withholding, 7.65% FICA, California's graduated income tax (1% to 13.3%), and 1.3% CA SDI. Your actual tax owed depends on your full-year income and may be lower: the difference comes back as a refund when you file.

The IRS requires employers to withhold federal income tax from supplemental wages (including bonuses) at a flat 22% rate for amounts up to $1 million, rising to 37% above that. Your employer may alternatively add the bonus to your regular paycheck and withhold using the aggregate method. Worked through for California: a $10,000 bonus keeps $6,017: 60.2% of it, after $888 of California income tax and $130 of CA SDI.

It depends on your total annual income and tax bracket. If the 22% flat withholding rate is higher than your actual effective rate on the bonus, you'll get the difference back as a refund; if you're in a higher bracket, you may owe more. On a $75,000 salary in California, a bonus is taxed at about 22% federally plus 8.9% to California, so the 22% flat rate is close to the mark at that income.

Yes: as regular income. Some employers withhold California tax on bonuses at a supplemental rate, but what you ultimately owe is determined by California's graduated income tax (1% to 13.3%) applied to your full-year income.

Splitting a bonus across pay periods can reduce withholding if your employer uses the aggregate method, which annualizes your income, but it changes the timing, not the amount you ultimately owe. Where you live changes the amount: California ranks 51 of 51 on what a $10,000 bonus leaves, against $6,565 in the median state and $6,017 in California.

Against the 3 states California borders, the same a $10,000 bonus is worth $6,017 here: Nevada keeps $1,018 more ($7,035), Arizona keeps $768 more ($6,785) and Oregon keeps $83 more ($6,100). Arizona, Nevada and Oregon are the only borders worth crossing for the tax alone.

It depends on your income level. At $100,000, California's effective state rate is approximately 5%-6%, meaning roughly $5,000-$6,000 annually in state tax (Texas has zero income tax). At $200,000, that jumps to 7%-8.5% ($14,000-$17,000 annually). At $300,000+, you might pay 8.5%-10% effective rate ($25,500-$30,000+ annually). However, California salaries are often 10%-20% higher for similar roles, which may partially or fully offset the tax difference. Calculate your actual take-home difference, not just the tax.

Yes. California taxes all income earned by California residents, regardless of where the employer is located. If you live in California and work remotely for a New York company, you pay California income tax on that income. You might also need to pay New York taxes under the 'convenience of the employer' rule if New York considers the work to be for your convenience. In that case, you'd file in both states and claim credits to avoid double taxation, but you'll likely pay the higher of the two rates. Consult a tax professional familiar with both states' rules.

Related Tools