Crypto Gambling Taxes in 2026: The New IRS Rules and What They Cost You

What Changed in 2026: The 90% Gambling Loss Deduction Cap

The biggest shift for gamblers in years dropped quietly inside the Tax Reform Act of 2025, signed in late December. Before 2026, you could deduct gambling losses dollar-for-dollar against your gambling winnings. Win $50,000 and lose $50,000 in the same year? Net taxable gambling income: zero. That was the rule for decades, and most of us took it for granted.

Starting with tax year 2026, the IRS only lets you deduct 90% of your gambling losses against your gambling winnings. The remaining 10% of your losses is simply gone from a tax perspective. You cannot write it off. You cannot carry it forward. It evaporates.

Let me be precise about the mechanics. The rule still requires you to itemize deductions on Schedule A if you want to claim gambling losses at all. The standard deduction for 2026 is $15,700 for single filers and $31,400 for married filing jointly. If your total itemized deductions (including the now-capped gambling losses) do not exceed the standard deduction, you get nothing from tracking losses. You just pay tax on the full winnings. That part has not changed.

What changed is the ceiling. Even if you do itemize, even if your losses exceed your winnings, the maximum loss deduction is now 90% of your documented losses. Congress framed this as a "revenue enhancement" provision. For recreational gamblers who lose a few hundred a year, it is meaningless. For active crypto gamblers moving serious volume, it creates a real tax bill on money you never actually profited from.

The rule applies to all forms of gambling: casinos, sportsbooks, poker, prediction markets, and yes, crypto gambling. There is no carve-out for digital assets. The IRS treats a Bitcoin blackjack session the same as a slot machine pull in Atlantic City.

One more detail that matters: the 90% cap applies to your aggregate annual losses, not per-session. You total up all gambling winnings for the year, total up all losses, then cap the deductible losses at 90% of the loss figure. This is important because it means the impact scales with volume.

Worked Example: How the New Cap Hits Crypto Gamblers

Let me walk through a realistic scenario. Say you are a regular crypto gambler, playing mostly on offshore casinos, using Bitcoin. Over the course of 2026, your records show:

• Total gambling winnings: $80,000
• Total gambling losses: $75,000
• Net actual profit: $5,000

Under the old rules (pre-2026), you would report $80,000 as gambling income on Schedule 1, then deduct $75,000 in losses on Schedule A. Your taxable gambling income would be $5,000. Straightforward.

Under the 2026 rules, your deductible losses are capped at 90% of $75,000 = $67,500. So your taxable gambling income is $80,000 minus $67,500 = $12,500. That is $7,500 more taxable income than your actual profit.

You made $5,000 gambling and you owe $3,000 in federal tax on it. That is a 60% effective rate on your actual profit. Not because of some exotic tax scenario, but because the loss cap inflates your taxable number.

Now consider someone who broke even. $100,000 in winnings, $100,000 in losses. Under the old rules, zero tax. Under the 2026 rules, your deductible losses cap at $90,000, leaving $10,000 of phantom taxable income. At the 24% bracket, that is $2,400 in taxes on zero actual profit.

And it gets worse if you lost money overall. Say you won $60,000 but lost $80,000. Your net result is negative $20,000. You can only deduct losses up to your winnings ($60,000 limit still applies, losses cannot exceed winnings), and within that, only 90%. So your deductible losses are 90% of $60,000 = $54,000. Your taxable gambling income: $6,000. You lost $20,000 and still owe tax. The 90% cap does not change the rule that losses can only offset winnings, but it does make the existing limitation bite harder.

The higher your volume, the more this hurts. Professional poker players and high-volume crypto gamblers are the primary targets. If you play $10,000 a year, the 10% haircut on losses might cost you an extra $50 in taxes. If you cycle $500,000 through crypto casinos over the course of a year, it can cost thousands.

The Double-Tax Problem Refresher

Before we even get to the loss cap, crypto gamblers face a structural tax disadvantage that cash gamblers do not. I have covered this in detail in the crypto gambling taxes (double-tax) guide, but here is the short version for context.

When you deposit cryptocurrency at a casino, the IRS treats that as a disposal of a capital asset. If your Bitcoin has appreciated since you bought it, you owe capital gains tax on the increase at the moment of deposit. Then, if you win, you owe ordinary income tax on the winnings. Two separate taxable events from one gambling session.

Quick example. You bought 1 BTC at $30,000. It is now worth $90,000. You deposit it at a crypto casino. That deposit triggers a $60,000 long-term capital gain. Then you win 0.5 BTC ($45,000). That is $45,000 of ordinary income. Your total tax exposure from that session: capital gains tax on $60,000 plus income tax on $45,000, minus whatever losses you can deduct (now at 90%).

The 2026 loss cap makes this double-tax sandwich even less appetizing. You are now paying tax on the crypto appreciation, paying tax on inflated gambling income (because 10% of your losses are non-deductible), and potentially paying state taxes on top of all of it.

This is why bankroll management matters more than ever from a tax perspective. The tax drag on crypto gambling is real, measurable, and now 10% worse than it was last year.

Form 1099-DA: What Exchanges Now Report and What Casinos Do Not

The Infrastructure Investment and Jobs Act of 2021 created the requirement for "digital asset brokers" to report transactions to the IRS. After years of delays and regulatory back-and-forth, Form 1099-DA finally became mandatory for centralized exchanges and certain other brokers starting January 1, 2026.

Here is what Form 1099-DA covers. When you sell, exchange, or dispose of cryptocurrency through a covered broker (Coinbase, Kraken, Gemini, etc.), that broker now reports the transaction to the IRS. The form includes the date of the transaction, gross proceeds, cost basis (if known to the broker), and gain or loss. It works similarly to the 1099-B that stock brokers have issued for decades.

What it does not cover is equally important. Offshore crypto casinos are not registered as brokers in the United States. They do not file 1099-DA forms. They do not report your deposits, withdrawals, winnings, or losses to the IRS. If you are playing at an offshore casino, the casino itself generates zero tax paperwork for you or the government.

But your exchange does. If you buy Bitcoin on Coinbase and send it to an offshore casino, Coinbase reports that outbound transfer. When you withdraw from the casino back to Coinbase, Coinbase reports the inbound transfer and any resulting sale if you convert back to USD. The exchange cannot see what happened in between (it does not know if you won or lost), but it can see the flow of funds.

This creates a paper trail that the IRS can piece together. They see $10,000 going out to an unknown wallet and $15,000 coming back a week later. That gap raises questions. It is not a complete picture, but it is enough to flag accounts for review.

For US taxpayers specifically, Form 1099-DA is a game changer not because it directly reports gambling activity, but because it removes the anonymity shield that crypto used to provide at the exchange on-ramp and off-ramp.

The Stablecoin Simplification

Here is practical advice that saves headaches. If you are gambling with crypto and you care about clean tax reporting, use stablecoins. USDT and USDC are pegged to the US dollar. Their value does not fluctuate meaningfully. That eliminates the capital gains layer entirely.

When you buy USDC at $1.00 and deposit it at a casino, your cost basis is $1.00 and the disposal value is $1.00. Capital gain: zero. When you withdraw USDC, same thing. The only taxable events are the actual gambling wins and losses, which are much simpler to calculate and report.

I still gamble with BTC sometimes because certain casinos have better Bitcoin bonuses or because I want exposure to the upside. But from a pure tax efficiency standpoint, stablecoins win. You deal with one layer of tax instead of two, your records are clean, and you do not have to look up Bitcoin's price at 2:47 AM on a Tuesday when you hit a lucky Plinko drop.

The one caveat: if USDT or USDC ever de-pegs significantly (USDT briefly traded at $0.97 in 2022), you would have a small capital gain or loss on the difference. In practice, this is negligible for most sessions, but worth noting for completeness.

Record Keeping: What You Need to Track

The 90% loss cap makes meticulous record keeping even more important than before. You need to document your losses thoroughly because the IRS can (and will) challenge loss deductions that lack supporting evidence. And now that you can only deduct 90% of them, every undocumented loss is a larger wasted opportunity.

Here is what I track for every gambling session:

For each deposit:

• Date and time of the transaction
• Amount of crypto sent (e.g., 0.05 BTC)
• USD value at the time of transfer
• Your cost basis for that crypto
• The casino or platform receiving the deposit
• Transaction hash (for on-chain deposits)

For each session:

• Casino name
• Date
• Games played
• Starting balance (in crypto and USD equivalent)
• Ending balance (in crypto and USD equivalent)
• Net win or loss in USD terms

For each withdrawal:

• Date and time
• Amount of crypto received
• USD value at the time
• Destination wallet or exchange
• Transaction hash

The IRS expectation is that you maintain a "diary" or log of gambling activity. They want contemporaneous records, meaning you logged it around the time it happened, not reconstructed from memory in April. A spreadsheet works. Some people use crypto tax software like Koinly or CoinTracker that can pull exchange data automatically, though these tools usually do not capture the gambling side without manual input.

For crypto-specific gambling, the critical extra field is the USD price of the cryptocurrency at the time of each transaction. If you bet 0.01 BTC on blackjack, you need to know what 0.01 BTC was worth at that moment in dollar terms. This is how the IRS values the transaction.

I use CoinGecko's historical price API to backfill prices when I have been lazy about logging in real time. It is not perfect, but it is defensible. The IRS has not published guidance on exactly which price source is acceptable, so using a major aggregator is a reasonable choice.

One practical tip: if you are playing at a casino that denominates everything in USD but settles in crypto (some hybrid platforms work this way), your records are simpler. The USD values are already displayed. Just screenshot your session history regularly and archive it.

The Offshore Casino Reporting Gap

Most crypto gambling happens at offshore casinos. Stake, Duelbits, Roobet, Shuffle, BC.Game. These platforms are not licensed in the United States and have no obligation to report anything to the IRS. They will not send you a W-2G. They will not file a 1099. They do not have your Social Security number.

This creates an information gap. The IRS knows you exist because your exchange reported fund flows via 1099-DA. But the IRS does not know the details of your gambling activity. It does not know if the crypto that left your Coinbase went to a casino, a DeFi protocol, a friend's wallet, or a hardware wallet in your desk drawer.

Some people interpret this gap as license to ignore reporting obligations. That is a mistake for several reasons.

First, the IRS has gotten significantly better at blockchain analytics. They contract with Chainalysis and other firms that trace fund flows across wallets. If your crypto goes to a known casino deposit address, that flag exists in the data even if no one is looking at it today.

Second, the statute of limitations for unfiled or fraudulent returns is much longer than most people realize. The standard window is three years. If you understate income by more than 25%, it extends to six years. If you never file or file a fraudulent return, there is no statute of limitations. The IRS could come knocking about your 2026 gambling in 2032 or later.

Third, crypto exchanges are increasingly cooperative with IRS summons requests. The IRS has issued John Doe summons to multiple exchanges, compelling them to hand over customer records. If your name comes up in one of these, the burden shifts to you to explain every transaction.

The smart play is to report accurately and keep records, even for offshore gambling. You might pay more tax this way. But the alternative is a tax fraud case with penalties, interest, and potentially criminal exposure. Not worth it for the sake of avoiding a few thousand dollars in legitimate taxes.

State Taxes: The Second Bite

Federal taxes are only the beginning. Most states also tax gambling income, and they do not all follow the federal rules on deductions.

The states that hurt the most are the ones that tax gross gambling winnings without allowing any loss deduction. California is the worst offender. If you live in California and you win $100,000 gambling but lose $95,000, your net profit is $5,000. California taxes you on the full $100,000 of winnings. At the top bracket, that is $13,300 in state tax on $5,000 of actual profit. Combined with federal, you could owe more in taxes than you won.

Illinois is similar. The 4.95% flat tax applies to gross winnings with no loss offset. Connecticut also disallows the deduction. These states treat gambling losses as a personal expense rather than a cost of earning the income.

States like New York and New Jersey follow the federal framework more closely, allowing loss deductions (subject to the new 90% federal cap). If your state conforms to federal rules, the 90% cap flows through automatically.

The obvious planning point: if you are a serious gambler and you have flexibility on where you live, a state with no income tax eliminates an entire layer of drag. Texas, Florida, Nevada, Wyoming, Tennessee, South Dakota, Alaska, and Washington have no state income tax. New Hampshire taxes interest and dividends but not gambling income.

International Comparison: Where Crypto Gambling is Tax-Free

The United States is one of the harshest jurisdictions for gambling taxation. Many countries treat gambling winnings as non-taxable or apply much lighter rules.

United Kingdom: Gambling winnings are completely tax-free for the individual bettor. The tax burden falls on the operators (who pay 21% point-of-consumption tax on gross gaming yield). It does not matter how much you win or how frequently you gamble. This applies to crypto gambling as well, though HMRC may scrutinize if gambling is your primary income source, as they could argue it constitutes a trade.

Australia: Similar to the UK. The Australian Tax Office does not consider gambling winnings taxable income for recreational gamblers. The reasoning is that gambling is not considered an income-producing activity. Professional gamblers who operate as a business may be taxed, but the bar for that classification is high. You would need to demonstrate systematic, business-like operations.

Canada: The Canada Revenue Agency generally does not tax gambling winnings for recreational gamblers. The distinction between a "recreational" gambler and a "professional" gambler matters. If you earn a living from gambling, CRA may assess it as business income. But for the vast majority of gamblers, winnings are a windfall and not taxable. This extends to crypto gambling winnings.

Germany: More complex. Germany does not tax gambling winnings from licensed operators. However, a 5.3% turnover tax applies to certain types of bets (primarily sports betting), and this is factored into the odds rather than charged directly to players. For casino games, there is generally no tax on player winnings. Crypto-specific guidance remains somewhat ambiguous, and the treatment of crypto disposals (separate from the gambling itself) may trigger capital gains tax if the holding period is under one year.

Portugal: Gambling winnings from licensed operators are subject to a special rate of 25% on winnings above certain thresholds. Online gambling winnings can be taxed at the same rate. This is more favorable than the US for high earners but less favorable than the UK or Australia.

For US-based gamblers, the comparison is frustrating. A British player can win $100,000 at an online casino and keep every penny. An American player in California winning the same amount might owe $40,000+ between federal and state taxes, especially with the new 90% loss cap reducing the value of their deductions. This disparity is one reason some US crypto gamblers explore international residency, though that has its own significant legal and tax complexities.

Common Mistakes That Trigger Audits

After years of reading tax forums, talking to CPAs who specialize in gambling, and learning some lessons the hard way, here are the mistakes I see most often. Several of these become more dangerous in the 2026 regime.

1. Not reporting winnings at all. This is the big one. Some people figure that if the casino did not send a W-2G or 1099, the IRS does not know. With Form 1099-DA now active, your exchange is creating a paper trail. Money goes out, money comes back. If you do not report the winnings that correspond to those inbound transfers, you have an unexplained income gap. The IRS automated matching systems are specifically designed to catch this.

2. Netting wins and losses and only reporting the net. You cannot just report your net $5,000 profit on Schedule 1. You must report the gross winnings ($80,000 in our example) and claim the losses separately on Schedule A. If you skip this and just report $5,000, and the IRS ever looks at it, they will assess tax on the full gross winnings and potentially deny your loss deduction entirely for failure to substantiate.

3. Claiming losses without itemizing. Gambling losses are an itemized deduction. If you take the standard deduction (which most Americans do), you cannot also claim gambling losses. Some people try to enter them on Schedule A anyway while also taking the standard deduction. That is not how it works and it will trigger scrutiny.

4. Failing to track cost basis for crypto. Every deposit at a casino is a disposal. You need to know what you paid for that crypto to calculate the capital gain or loss. If you cannot demonstrate your cost basis, the IRS can assign a basis of zero, meaning the entire deposit amount becomes a taxable capital gain. For someone depositing $50,000 in Bitcoin that they bought at $45,000, the difference between proving your basis ($5,000 gain) and losing your basis records ($50,000 gain) is enormous.

5. Ignoring the session method vs. per-bet method. The IRS allows you to calculate gambling results on a per-session basis rather than per-bet. For table games and slots, a session is a continuous period of play at one game. This can significantly reduce your gross winnings number (and therefore your exposure). But you need to be consistent and document the sessions properly. Many people use whichever method is convenient for a given day, which invites challenge.

6. Claiming professional gambler status without qualifying. Filing as a professional gambler (Schedule C) lets you deduct gambling-related expenses and avoid some of the itemization requirements. But the IRS has specific criteria: gambling must be your primary income source, you must pursue it regularly and continuously, and you must demonstrate a profit motive. Filing Schedule C when you have a full-time job and gamble on weekends is a red flag that can trigger an audit of your entire return.

7. Not reporting crypto-to-crypto conversions. If you convert BTC to ETH inside a casino, or swap tokens on a DEX before depositing, each conversion is a taxable event. Some people track the initial purchase and the final sale but ignore the intermediate swaps. Each one needs to be recorded with its USD value at the time.

8. Overstating losses relative to the new 90% cap. In 2026, some filers will be tempted to inflate their losses to compensate for the 90% cap. If you claim $100,000 in losses to offset $80,000 in winnings, but your actual losses were $70,000, you have committed tax fraud. The 90% cap is going to make loss substantiation a higher audit priority. The IRS knows people will try to game the new rule. Keep honest records and accept the 10% haircut.

For anyone getting into prediction market taxes, the same principles apply. Polymarket and Kalshi winnings are taxable. Losses follow the same deduction rules, including the new 90% cap.

The Bottom Line

The 2026 tax landscape for crypto gamblers is meaningfully worse than 2025. The 90% loss cap creates phantom taxable income for anyone with significant volume. Form 1099-DA makes exchange-level tracking automatic. The double-tax problem on appreciated crypto persists. And states like California continue to pile on.

None of this means you should stop gambling. It means you should factor taxes into your expected value calculations. That 1% house edge at blackjack effectively becomes larger when the tax system takes its cut. The edge you need to justify a bet is not just the mathematical edge against the house. It includes the tax drag.

Use stablecoins when possible. Keep detailed records. Understand your state's rules. And do not assume that offshore casinos mean no tax obligations. The IRS is catching up to crypto, slowly but steadily. The gamblers who will be fine are the ones who planned ahead.