California Sports Betting Tax Calculator
California taxes gambling winnings as ordinary income at graduated brackets (varies by income). Sports betting is not yet legalized in California. Residents who gamble in other states or at casinos still owe California income tax on winnings. Sports betting not legalized. Ballot measures have failed. Highest top marginal rate in the US at 13.3% (including Mental Health Services Tax).
Calculate Your California Sports Betting Tax
2026 rules: 90% loss deduction cap applies (OBBBA)
Your salary, wages, and other non-gambling income
Losses can only be deducted if you itemize deductions
You cannot deduct gambling losses with the standard deduction. Switch to itemized to deduct losses.
Tax Breakdown
W-2G Form: Likely Required
Your total winnings of $10,000 exceed the $2,000 W-2G threshold for 2026. Individual wins that also meet the 300:1 odds requirement may trigger a W-2G form. Use our W-2G Checker for precise results.
Federal Withholding
$2,400 (24%) would be withheld at the time of payout. You may be due a refund of $1,200.
California Gambling Tax Key Facts
- ✓State income tax: graduated brackets (varies by income)
- ✓Sports betting: not yet legalized
- ✓Gambling loss deductions ARE allowed (must itemize)
- ✓State lottery winnings are exempt from CA state tax
- ✓Other gambling winnings taxed as ordinary income
- ✓Additional 1% Mental Health Services Tax on income over $1M
How Sports Betting Taxes Work in California
California taxes gambling winnings as ordinary income through graduated tax brackets. Your gambling winnings are added to all other income and taxed accordingly.
California allows gambling loss deductions following federal rules. Under the 2026 OBBBA, losses are deductible at 90% (capped at the amount of winnings) when itemizing deductions.
California Allows Gambling Loss Deductions
California follows federal rules for gambling loss deductions. The 2026 OBBBA 90% cap applies when itemizing.
California Tax Example
A single filer in California earning $60,000 with $10,000 in sports betting winnings and no losses
How California Compares to Neighboring States
Recent California Gambling Tax Changes
Sports betting not legalized. Ballot measures have failed. Highest top marginal rate in the US at 13.3% (including Mental Health Services Tax).
California Sports Betting Tax FAQ
How much tax do I pay on sports betting winnings in California?
California taxes gambling winnings at graduated brackets (varies by income) on top of federal tax (10-37%). Your total combined tax rate depends on your income level and filing status.
Is sports betting legal in California?
Sports betting is not currently legal in California. However, residents who gamble in other states or at legal casinos still must report and pay taxes on their winnings.
Can I deduct gambling losses in California?
Yes, California allows gambling loss deductions following federal rules. You must itemize deductions, and losses are limited to the amount of your winnings. The 2026 OBBBA 90% cap applies.
California Tax Authority
For official tax guidance specific to California, contact the state tax authority:
https://www.ftb.ca.gov/↗Calculate Your California Sports Betting Taxes
Use our free calculator above to see exactly what you owe in California.
Full Tax Calculator