IRS, Crypto, and Your Sportsbook Account: A 2025 Tax Survival Guide for US Bettors

For years, a convenient myth circulated in online betting communities: cryptocurrency transactions were effectively invisible to the IRS, and winnings paid out in Bitcoin or Ethereum existed in a regulatory gray zone that the government hadn't yet mapped. That myth is now thoroughly and officially dead.

In 2025, the IRS treats cryptocurrency with the same scrutiny it applies to any other asset class — and when you layer sports betting winnings on top of that, you are navigating two overlapping compliance frameworks simultaneously. Understanding how they interact is not optional for any serious bettor operating in the United States.

How the IRS Classifies Crypto Winnings From Sportsbooks

The foundational principle here is straightforward, even if the execution is not. The IRS classifies cryptocurrency as property, not currency. This means every time you receive a crypto payout from a sportsbook, two separate taxable events may occur.

First, the gambling winnings themselves are ordinary income, reportable in the year you receive them, at the fair market value of the cryptocurrency at the moment of receipt. If you win 0.05 BTC on a game-winning field goal and Bitcoin is trading at $80,000 at that precise moment, you have $4,000 in gambling income — full stop.

Second, if you subsequently hold that Bitcoin and sell or exchange it at a higher price, you have generated a capital gain on the appreciation. Conversely, selling at a loss from your receipt price creates a capital loss. Every disposition is a separate reportable event. The practical implication is that a bettor who wins, holds, and later spends crypto is generating a tax trail at each step — not just at the point of winning.

The IRS formalized expanded reporting obligations for digital asset brokers beginning in 2025 under regulations stemming from the Infrastructure Investment and Jobs Act. Centralized crypto exchanges operating in the US are now required to issue 1099-DA forms to users, making it significantly harder to argue that transactions were undetected.

Hobby Gambler vs. Professional Bettor: Why the Distinction Is Worth Thousands of Dollars

The IRS does not treat all gamblers equally, and the classification it assigns to your activity has substantial financial consequences.

If the agency considers you a casual or hobby gambler, your winnings are reported as "Other Income" on Schedule 1 of your Form 1040. Your losses are deductible only if you itemize — and only up to the amount of your winnings. You cannot net losses against other income, and you cannot carry losses forward to future tax years. For most recreational bettors, this structure is punishing in a losing year.

If, however, you qualify as a professional gambler in the IRS's view, you file Schedule C as a self-employed individual. This opens the door to deducting ordinary business expenses — analytical software subscriptions, data services, a portion of home office costs, and relevant hardware — against your gross gambling income. Losses may be deductible beyond the amount of winnings in certain circumstances, though the Tax Cuts and Jobs Act placed additional restrictions on excess business loss deductions that remain relevant through 2025.

The IRS applies a facts-and-circumstances test to determine professional status. Courts have consistently looked for evidence that betting is conducted with regularity, continuity, and a genuine profit motive — not as a recreational hobby. If you are using sophisticated analytics platforms, maintaining detailed records, and treating your betting operation with the discipline of a business, you have a stronger argument for professional classification. Consult a tax attorney or CPA with gambling-specific experience before filing under this status.

State-Level Complexity: Your Location Changes the Math

Federal compliance is only half the picture. State tax treatment of gambling winnings — particularly crypto gambling winnings — varies considerably across the country.

States like Nevada impose no state income tax, making them straightforwardly favorable for bettors from a state tax perspective. New York, by contrast, taxes gambling winnings as ordinary income at rates that can reach 10.9% at the top bracket, and the state has been aggressive about ensuring residents report online gambling activity. California currently prohibits most forms of sports betting but taxes gambling income for residents who bet through out-of-state or offshore platforms — a distinction many California bettors incorrectly assume protects them.

Several states that do permit legal sports betting — including New Jersey, Pennsylvania, and Michigan — have their own withholding thresholds and reporting requirements that may differ from federal standards. Some states do not allow gambling loss deductions at all, even for residents who itemize on their federal return.

The cryptocurrency layer adds further complexity: a small number of states have begun issuing guidance specifically addressing crypto asset gains, and some treat them differently than federal law does. This remains a rapidly evolving area, and bettors with significant activity across multiple states should consider professional tax counsel.

The Record-Keeping Infrastructure Every Crypto Bettor Needs

The single most important thing a US bettor can do to protect themselves in 2025 is maintain contemporaneous, detailed records. "Contemporaneous" is the operative word — reconstructing records after the fact is both unreliable and less credible under audit scrutiny.

For crypto betting specifically, your records should capture:

• The date and time of every deposit and withdrawal from each sportsbook wallet address
• The fair market value of the cryptocurrency at the exact moment of each transaction, expressed in USD
• The outcome of each wager — win, loss, or push — with the bet amount and payout in both crypto and USD equivalent
• Wallet addresses associated with each transaction, allowing you to cross-reference against on-chain data
• Exchange records documenting any conversion of crypto winnings into fiat currency, including the applicable exchange rate

Several dedicated crypto tax platforms — including Koinly, CoinTracker, and TaxBit — now offer gambling-specific transaction categorization that can substantially reduce the manual burden of this process. These tools import transaction histories directly from wallets and exchanges, calculate cost basis using multiple accounting methods (FIFO, LIFO, or specific identification), and generate IRS-compatible reports.

For bettors who operate at significant volume, pairing a crypto tax tool with dedicated gambling log software — or even a well-structured spreadsheet — creates the dual-layer documentation that satisfies both the gambling income and capital gains reporting requirements simultaneously.

What Happens if You Don't Report

The enforcement environment has materially tightened. The IRS's Criminal Investigation division has demonstrated increasing sophistication in tracing cryptocurrency transactions through blockchain analysis, and the agency has pursued civil and criminal cases against individuals who failed to report crypto income across multiple asset categories.

Underpayment penalties, accuracy-related penalties, and interest charges can rapidly compound an already uncomfortable tax bill. In cases involving willful non-reporting, criminal exposure is a genuine risk. The regulatory infrastructure being built around both digital assets and online gambling is designed to close the gaps that previously allowed activity to go undetected.

For US bettors using crypto sportsbooks in 2025, compliance is not merely the ethical choice — it is the strategically sound one. Building the right systems now is far less costly than resolving an IRS inquiry later.