Gambling loss deduction 2026: only 90% of losses are deductible
The One Big Beautiful Bill Act changed a rule that had stood for decades. Starting with the 2026 tax year, the itemized deduction for gambling losses is limited to 90% of the losses you incurred, and still cannot exceed your winnings. The practical result: a break-even year now produces a tax bill.
The change in one line
2025 and earlier: deduct 100% of losses, up to winnings. 2026 onward: deduct the lesser of 90% of losses or your winnings. The missing 10% is taxed as income even if you never kept a dollar of it.
What you owe on a break-even year
Enter your gross winnings and gross losses for the year (session-level totals, not your net profit).
Old rule (2025)
Deductible losses: $100,000
Taxable gambling income: $0
New rule (2026)
Deductible losses: $90,000
Taxable gambling income: $10,000
Extra taxable income under the 90% cap: $10,000
At a 24% marginal rate that is roughly $2,400 in additional federal tax. Estimated total federal tax on your gambling income for 2026: $2,400. State tax may add more — several states never allowed a loss deduction at all.
Estimates only, assuming you itemize. Your actual liability depends on your full return.
Break-even examples at a 24% rate
| Profile | Winnings | Losses | Deductible (90%) | Phantom income | Extra tax @ 24% |
|---|---|---|---|---|---|
| Casual bettor | $10,000 | $10,000 | $9,000 | $1,000 | $240 |
| Regular weekend bettor | $50,000 | $50,000 | $45,000 | $5,000 | $1,200 |
| High-volume sports bettor | $250,000 | $250,000 | $225,000 | $25,000 | $6,000 |
| Full-time advantage player | $1,000,000 | $980,000 | $882,000 | $98,000 | $23,520 |
Notice the pattern: the cost scales with how much money moves through your account, not with how much you actually win. High-volume, low-margin bettors are hit hardest.
How to blunt the impact legally
- Use the session method, not bet-by-bet totals. The IRS lets you measure a gambling session's net result rather than every individual winning wager. That single change can cut both your reported winnings and your reported losses dramatically — and a smaller loss number means a smaller 10% haircut. Read the session method guide →
- Keep contemporaneous records. Date, venue, game, amount in, amount out. Without them you cannot defend a session-level figure, and you fall back to gross W-2G totals. What the IRS expects in a log →
- Check whether itemizing still wins. The deduction only exists on Schedule A. Run your numbers both ways before assuming you benefit.
- Plan for withholding gaps. A 24% W-2G withholding rarely covers the bill once phantom income is added on top.
Full 2026 W-2G threshold reference
Every threshold in one sourced table — sportsbook $600 at 300:1, slots & bingo $2,000 (up from $1,200 on Jan 1, 2026), keno $1,500 net, poker $5,000 net — plus when 24% federal tax is withheld.
The 90% cap makes records worth money
NetBetTracker keeps a private, session-level ledger of every bet — so at filing time you have defensible winnings and loss totals instead of a pile of statements. That is now the difference between a fair tax bill and paying on income you never kept.
Start a 7-day free trialFrequently asked questions
What changed for gambling losses in 2026?
For tax years beginning on or after January 1, 2026, the One Big Beautiful Bill Act limits the itemized gambling loss deduction to 90% of the losses you incurred during the year. Before 2026 you could deduct 100% of losses, up to the amount of your winnings. The winnings ceiling still applies on top of the new 90% haircut.
Does the 90% cap mean I pay tax even if I broke even?
Yes. If you won $100,000 and lost $100,000, you report $100,000 of winnings and can deduct only $90,000 of losses. The remaining $10,000 is taxable income even though your bankroll ended the year flat — commonly called phantom income.
When does the 90% limit first affect my return?
It applies to the 2026 tax year, which is the return most people file in early 2027. Your 2025 return, filed in 2026, still uses the old 100% rule.
Do I still have to itemize to deduct gambling losses?
Yes. Gambling losses remain an itemized deduction on Schedule A for recreational gamblers. If you take the standard deduction, you deduct nothing and pay tax on your gross winnings — the 90% cap never comes into play.
Can losses still exceed winnings?
No. The deduction is capped at your reported winnings, and now also at 90% of your losses. Whichever number is lower is the most you can deduct. Net gambling losses can never create a deduction against wage income.
Does the 90% cap apply to professional gamblers?
Professionals filing on Schedule C are subject to the same limitation on wagering losses; the change applies to the deduction for losses from wagering transactions generally. Related business expenses are treated separately from wagering losses. Confirm your position with a tax professional before filing.
How do I reduce the impact of the 90% cap?
Accurate session-level records are the biggest lever. Under the IRS session method your reportable winnings are the net result of each gambling session, not the sum of every winning bet, which lowers both the winnings you report and the losses you have to deduct. Fewer gross dollars flowing through the calculation means a smaller 10% haircut.
Educational information, not tax advice. Reflects federal rules as enacted for the 2026 tax year; confirm your situation with a qualified tax professional.