Deep Dive: Tax Reporting for Prediction Market Profits 2026

Prediction market profits in 2026 are fully taxable in the United States, and the IRS is paying closer attention than ever before. Whether you're trading on platforms like PredictEngine, Polymarket, or Kalshi, your winnings count as taxable income—and the rules for reporting them correctly are more nuanced than most traders realize. This guide breaks down exactly what you owe, how to calculate it, and how to file without leaving money on the table or triggering an audit.

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Why Prediction Market Taxes Are More Complex Than You Think

Most people assume prediction markets work like sports betting—you win, you pay tax, you move on. The reality is considerably messier. Depending on the structure of the platform, whether you're trading binary outcome contracts, and whether your activity crosses the threshold from casual gambling into active trading, you could be subject to wildly different tax treatments.

In 2025, the CFTC formally recognized certain prediction markets as legal derivatives markets, which has downstream implications for how the IRS views profits from platforms it considers exchanges versus gambling operators. This regulatory evolution means 2026 is a pivotal year for getting your classification right.

The key classifications to understand:

• Gambling income — Reported on Schedule 1, Line 8b; losses only deductible if you itemize
• Capital gains — Short-term (taxed as ordinary income) or long-term (0%, 15%, or 20% rates)
• Section 1256 contracts — Special 60/40 split treatment for regulated futures contracts
• Self-employment income — If trading is your primary business activity

Getting the wrong classification doesn't just mean paying more than you owe—it can mean paying significantly less and triggering penalties.

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How the IRS Currently Classifies Prediction Market Income

The IRS has not issued a comprehensive ruling specifically covering prediction markets as of early 2026. That ambiguity cuts both ways.

For platforms regulated by the CFTC as Designated Contract Markets (DCMs)—like Kalshi—there's a credible argument that contracts qualify as Section 1256 contracts. Under Section 1256, gains and losses are treated as 60% long-term and 40% short-term, regardless of how long you held the position. At the 2026 top marginal rate, this blended treatment saves high earners meaningful money compared to ordinary income rates.

For platforms operating outside direct CFTC oversight, or those structured around crypto-denominated markets, the IRS is more likely to treat profits as either ordinary income or gambling winnings, depending on the facts and circumstances.

The Crypto Complication

Many prediction markets—including those accessible through PredictEngine—settle in stablecoins or other cryptocurrencies. When that happens, you have two taxable events:

1. The settlement of the prediction contract itself (gain or loss)
2. Any subsequent appreciation or depreciation in the cryptocurrency received

For example: You win 500 USDC on a market. USDC is pegged to the dollar, so the first event is straightforward. But if you'd won in ETH and ETH rose 20% before you sold it, that 20% gain is a separate capital gains event.

If you want to understand how algorithmic and AI-driven strategies interact with tax exposure, check out our piece on AI agents for prediction market making, which covers how automated positions can create dozens of taxable events per day.

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Step-by-Step: How to Report Prediction Market Profits in 2026

Following a consistent process will protect you from missed reporting and audit risk.

1. Download your full transaction history from every platform you used in 2025 (the tax year preceding your 2026 filing deadline).
2. Categorize each transaction by platform type: CFTC-regulated exchange, offshore/crypto platform, or hybrid.
3. Identify your cost basis for each contract. For binary contracts, your cost basis is typically what you paid for the "yes" or "no" share.
4. Calculate realized gains and losses on each closed position. Open/unrealized positions are generally not taxable until settlement.
5. Determine holding period for each position—under 12 months is short-term, over 12 months is long-term.
6. Apply the correct form: Form 8949 for capital transactions, Schedule 1 for gambling income, Form 6781 for Section 1256 contracts.
7. Aggregate losses carefully—capital losses offset capital gains dollar-for-dollar; excess losses are capped at $3,000 per year against ordinary income.
8. File FBAR or FinCEN Form 114 if you held more than $10,000 in aggregate on foreign-based platforms at any point during the year.
9. Consider quarterly estimated tax payments if your platform profits exceeded $1,000 in a prior quarter—underpayment penalties apply.
10. Retain records for at least seven years, including screenshots of positions, smart contract interactions, and any platform-issued tax documents.

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Key Tax Forms You'll Use for Prediction Markets

Form	When to Use	Tax Treatment
Schedule 1 (Form 1040)	Gambling income from non-regulated platforms	Ordinary income rates (10%–37%)
Form 8949 + Schedule D	Capital gains/losses from trading contracts	Short-term (ordinary) or long-term (0/15/20%)
Form 6781	Section 1256 contracts (CFTC-regulated exchanges)	60% long-term / 40% short-term blended
Schedule C	Professional traders with business activity	Self-employment tax applies; deductions allowed
FBAR / FinCEN 114	Foreign account holdings over $10,000	Reporting only; no direct tax, but penalties for failure
Form 8938 (FATCA)	Higher-threshold foreign asset disclosure	Reporting only

If you're an active trader running momentum strategies—see our momentum trading prediction markets playbook—you may have hundreds of taxable events annually. Software like Koinly, TaxBit, or CoinTracker can automate much of the calculation, but they still require correct categorization inputs from you.

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Deductions and Offsets Available to Prediction Market Traders

One of the most overlooked aspects of prediction market taxation is how losses and expenses can reduce your overall liability.

Capital Loss Harvesting

If you closed any positions at a loss in 2025, those losses offset your gains dollar-for-dollar. If your losses exceed your gains, you can deduct up to $3,000 against ordinary income per year, carrying forward the remainder indefinitely. This is standard capital loss treatment and applies to prediction market contracts classified as capital assets.

Trading Expenses for Professional Traders

If you qualify as a trader in securities under IRS rules—meaning trading is your primary livelihood and you engage in frequent, substantial activity—you can deduct expenses on Schedule C, including:

• Platform fees and commissions
• Subscription costs for data feeds and analytics tools
• Home office deduction (if used exclusively for trading)
• Professional tax preparation fees related to your trading activity
• Cost of trading software and bots

For those running algorithmic reinforcement learning strategies, documented software and infrastructure costs can represent significant deductible expenses.

Gambling Loss Rules (The Harder Path)

If your platform is classified as a gambling operator by the IRS, your losses are only deductible if you itemize deductions on Schedule A, and only up to the amount of your gambling winnings. Given that the 2026 standard deduction is approximately $15,000 for single filers (indexed for inflation), most retail traders won't clear the threshold to benefit from itemizing—meaning gambling-classified losses often disappear entirely from a tax standpoint.

This asymmetry is one of the strongest arguments for trading on CFTC-regulated platforms whenever possible.

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State Tax Considerations You Can't Ignore

Federal taxes are only part of the picture. State treatment varies dramatically:

• California: No capital gains preference; all gains taxed at ordinary income rates up to 13.3%
• Texas, Florida, Nevada: No state income tax—prediction market profits escape state-level taxation entirely
• New York: Capital gains taxed as ordinary income; New York City residents face an additional local tax
• Washington State: No income tax, but a capital gains tax of 7% on gains above $250,000 (passed in 2021, upheld in 2023)

If you're trading seriously across multiple markets—including entertainment prediction markets after the 2026 midterms or science and tech events—the geographic arbitrage of your state of residence can be worth tens of thousands of dollars annually at scale.

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Common Mistakes That Trigger IRS Scrutiny

Even well-intentioned traders make errors that raise red flags. Avoid these:

• Ignoring 1099 forms: Some regulated platforms now issue 1099-B or 1099-MISC forms directly to the IRS. If you don't report income that appears on a 1099, you will receive a CP2000 notice.
• Treating all prediction markets identically: As covered above, platform classification matters enormously.
• Missing the wash sale trap: Wash sale rules technically apply to securities, not Section 1256 contracts—but if your contracts are classified as securities, repurchasing a "substantially identical" contract within 30 days disallows the loss.
• Not reporting crypto-denominated settlements: Many traders forget that receiving USDC or ETH as a payout is a taxable event at the moment of receipt.
• Underreporting due to platform anonymity: The IRS has successfully subpoenaed major crypto exchanges and has treaty arrangements with many foreign jurisdictions. Anonymity is not a tax defense.

For more detail on specific market-type tax handling, our article on tax considerations for science & tech prediction markets walks through a step-by-step framework you can apply directly.

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Frequently Asked Questions

Are prediction market winnings considered gambling income by the IRS?

It depends on the platform. Winnings from CFTC-regulated exchanges like Kalshi are more likely treated as capital gains or Section 1256 contract income. Unregulated or offshore platforms are more frequently categorized as gambling income. The distinction significantly affects your deduction rights and effective tax rate.

Do I owe taxes on unrealized gains in prediction markets?

No. Prediction market contracts are generally taxable only when a position closes or settles. Unrealized gains on open contracts are not taxable income until the outcome is determined and the contract resolves. However, mark-to-market elections under Section 475 can change this for professional traders.

What happens if I don't receive a 1099 from my prediction market platform?

You are still legally required to report your income. The absence of a 1099 does not eliminate your tax obligation—it simply means the platform hasn't reported it to the IRS yet. Self-reporting is required by law, and the IRS has increasingly effective data-matching tools for crypto and financial platforms.

Can I deduct prediction market losses against other income?

If your contracts are classified as capital assets, losses offset capital gains first, then up to $3,000 of ordinary income per year. If classified as gambling, losses are only deductible against gambling winnings and only if you itemize. Professional traders on Schedule C have broader deduction rights for losses and expenses.

How does Section 1256 treatment benefit prediction market traders?

Section 1256 contracts receive a 60/40 blended rate—60% of gains treated as long-term regardless of holding period, 40% as short-term. For traders in the top 37% bracket, effective tax on Section 1256 gains is approximately 26.8% versus 37% under ordinary income treatment, representing a substantial saving for high earners.

What records should I keep for prediction market tax purposes?

Retain complete transaction histories, contract details (outcome, settlement date, amount), wallet addresses for crypto settlements, platform fee records, and any correspondence with platforms. The IRS generally has three years to audit standard returns and six years if income is understated by more than 25%. Seven years of records is a conservative, defensible standard.

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Taking Action Before the Filing Deadline

Tax compliance for prediction market trading is genuinely complex in 2026—more so than almost any other investment category. The regulatory gray zones, crypto integrations, and platform-specific classifications create a web of rules that rewards preparation and punishes procrastination.

The traders who come out ahead aren't just the ones with the best strategies; they're the ones who treat tax efficiency as part of their edge. If you're running sophisticated approaches—whether that's market making with a $10k portfolio or high-frequency contract flipping—every dollar you save in unnecessary taxes is a dollar that compounds in your next trade.

PredictEngine is built for serious prediction market participants who understand that information, tooling, and efficiency are everything. Explore our platform to access real-time market data, strategy resources, and the analytics infrastructure that gives disciplined traders a structural advantage—and pair your trading activity with a qualified tax professional who understands digital assets to make sure your 2026 returns are as optimized as your positions.