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Imagine losing money at the casino and still owing tax on it. That seems unfair, but starting in 2026, it’s the reality for a lot of gamblers, including many retirees who enjoy the occasional casino trip or bingo night.
Let’s walk through how gambling income actually gets taxed, what changed under the One Big Beautiful Bill, and what it means whether you itemize or take the standard deduction.
The Story That Inspired This Post
I recently got a call from a client I’ll call Susan. Susan hit a jackpot on a slot machine worth about $8,000. She was thrilled, and rightfully so. Winning $8,000 on a single pull is a great day.
The problem is Susan doesn’t have a clean accounting of how much she’s lost at the casino over the year. And whether she itemizes or takes the standard deduction is about to make a real difference in how much of that $8,000 she has to report.
Susan is facing an $8,000 reportable gain no matter what. That doesn’t change. What changed is how much of her losses she can use to offset it, and only if she itemizes.
The New 90% Rule for Itemizers
Starting in January 2026, itemizers can only deduct up to 90% of their gambling losses. The old rule let you deduct your losses dollar for dollar, up to your winnings.
Here’s what that looked like under the old rule:
- If you had $10,000 in gambling wins and $10,000 in gambling losses, you could deduct the full $10,000 in losses against your $10,000 in wins.
- Net result: breakeven, zero taxable gambling income.
Under the new rule:
- That same $10,000 in losses can only offset 90% of it, or $9,000.
- That leaves you with $1,000 of taxable income you wouldn’t have had the year before, even though you didn’t actually come out ahead.
- The more you win and lose, the bigger that gap gets, and it compounds with whatever tax bracket you’re in.
This only affects itemizers. If you take the standard deduction, and most retirees do since the 2017 Tax Cuts and Jobs Act raised the standard deduction significantly, the 90% rule doesn’t apply to you. Instead, a different problem applies.
If You Take the Standard Deduction, It’s Worse
If you’re a standard deduction filer and you hit a jackpot, you have to report the full amount (per session) of that win as income.
It doesn’t matter how much you lost before or after that jackpot in other sessions.
Going back to Susan’s example, if she’s taking the standard deduction, her full $8,000 jackpot is taxable income, regardless of any losses she racked up elsewhere. There’s no offset available to her at all.
This is where session rules matter, and they’re more nuanced than people expect.
How the IRS Defines a “Session”
Say you put $150 of your own money into a slot machine and then hit a $1,000 jackpot in that same sitting. Your session income is $850, not $1,000, because the loss and the win happened in the same session.
But if you sit down and hit $1,000 on your very first pull, your session income is the full $1,000.
Now say you go back a month later, feed a machine $150, lose it all, and walk away. That’s a separate session. Even though your net across both visits is the same $850, the IRS treats these as two different sessions with two different outcomes.
Understanding how your specific trips break into sessions can meaningfully change what you owe. This is one area where good recordkeeping throughout the year pays off.
The W-2G Threshold Went Up, But That Doesn’t Change Your Obligation
One piece of good news: the W-2G reporting threshold, the form casinos file for your winnings, went up from $1,200 to $2,000.
So the paperwork trail only kicks in above $2,000 now, compared to the old $1,200 mark.
But whether or not a W-2G gets generated, you are still required to report all your gambling winnings as income. The paper trail is a reporting mechanism for the casino, not a determination of what you owe.
Three Other Changes Retirees Should Know About
The 90% gambling loss rule isn’t happening in isolation. It’s one of three notable changes for itemizers taking effect in the 2026 tax year under the One Big Beautiful Bill, signed July 4, 2025.
The SALT deduction cap went up (good news). Starting in 2025, the state and local tax deduction cap jumped from $10,000 to $40,000 for itemizers ($40,400 in 2026 for MFJ filers, half that amount for single). It’s temporary, but a lot of people took advantage of it when they filed last year.
Charitable deductions now have a floor (not great news). Previously, itemizers could deduct the full amount of their charitable giving.
Starting in 2026, there’s a 0.5% AGI floor, meaning you can only start deducting charitable contributions once your giving exceeds half a percent of your adjusted gross income. This mostly affects higher-income households, but it’s worth knowing about if you give regularly.
The gambling loss rule dropped to 90% (also not great news). As covered above.
If you still carry a mortgage into retirement, the interest is still deductible even as your balance and interest amount shrink each year. That’s one piece that hasn’t changed.
The Part You Don’t Want to Miss: AGI vs. Taxable Income
Here’s the detail I think trips up even people who understand the rules above. Itemized deductions lower your taxable income. They do not lower your adjusted gross income (AGI).
If Susan’s $8,000 jackpot isn’t fully offset because of the 90% rule, that gain still flows into her AGI, even if she itemizes. And a jump in AGI can trigger a Medicare IRMAA surcharge two years down the road, on top of other effects like the taxability of Social Security or the net investment income tax.
So a single good night at the casino can quietly follow you into a higher Medicare premium bill two years later, separate from whatever you owe in income tax that year.
What You Can Actually Do About It
There’s no silver bullet here, but a few things are worth doing proactively rather than discovering them next April.
Track your sessions. Know how the IRS would define your sessions based on how you actually gamble, and keep records as you go rather than trying to reconstruct them at tax time.
Run the itemize-vs-standard math with everything in view. Between a larger SALT deduction, mortgage interest, charitable giving, and gambling losses, some retirees may find it’s worth itemizing this year even if they haven’t in years past. That decision depends on your full picture, not gambling losses in isolation.
Assume the jackpot is taxable and plan accordingly. If you’re heading into a casino trip and hit a win, assume you’re a standard deduction filer for that money unless you have a specific reason to itemize. Treat the full win as taxable and plan your withholding or estimated payments accordingly.
Watch your AGI, not just your taxable income. If you have a big gambling year, look ahead two years for a potential Medicare premium bump, not just at this year’s tax bill.
This rule could still change. A prior attempt to fix it failed in the House, and there’s a resurrected bill with some bipartisan support. But as of this writing in August 2026, the law stands as written on July 4, 2025, and it applies to the 2026 tax year. Plan around what’s actually on the books today, not what might change.
Actionable Steps:
- Start a simple session log now. A notes app entry with the date, buy-in, and outcome of each casino visit will save you a scramble in early 2027.
- Revisit your itemize-vs-standard decision for 2026. Don’t assume last year’s choice still applies with the SALT cap increase and other changes in play.
- If you hit a win this year, set aside real money for taxes. Treat a jackpot like taxable income the moment it happens, not a surprise you’ll deal with at filing time.
- Check your Medicare IRMAA exposure two years out if you’ve had a significant gambling win, separate from your income tax planning.
If you’re approaching retirement or already there and want help building the structure that supports real financial peace, we can help. At Hyperion Financial, we work with our clients to build plans that reflect their actual lives – not just their balance sheets. Because the numbers matter, but the peace matters more. Click Here to schedule a conversation.