Taxes on Polymarket winnings
Last updated · how we verify
Gains are generally taxable, but the classification — gambling, capital gains, or derivatives income — differs by jurisdiction and decides everything. Polymarket US contracts are regulated as derivatives by the CFTC rather than as gambling, which can pull treatment away from the sportsbook analogy. This page sets out what determines the answer and what records to keep. It is not tax advice.
Tax treatment of prediction-market contracts varies by country, differs between gambling and derivatives classifications, and is genuinely unsettled in places. Rather than publish a confident rule that might be wrong for you, this page sets out the questions that determine the answer and what records you need. Speak to a tax professional in your jurisdiction.
The question that decides everything
How your gains are taxed depends on how the instrument is classified where you live:
| Possible classification | Typical consequence |
|---|---|
| Gambling winnings | In some countries untaxed; in others taxed at a specific rate, often with losses not deductible |
| Capital gains | Taxed on disposal, often with loss offset available |
| Derivatives or contract income | May have its own regime and reporting requirements |
| Ordinary income | Taxed at marginal rates |
The reason this is not a solved question: Polymarket US contracts are regulated as derivatives by the CFTC, not as gambling. That is the same distinction 7 states are currently litigating for gambling-law purposes, and it can pull tax treatment away from the sportsbook analogy people reach for by default. The legal dispute →
The USDC complication
On the international exchange there is an extra layer: you are transacting in a stablecoin. Depending on your jurisdiction, acquiring and disposing of USDC may itself be a taxable event separate from the trading outcome. Keep the USD value at each step, not just the USDC amount.
What to record
- Every deposit and withdrawal — date, amount, network, and USD value at the time.
- Every trade — market, side, share count, price, and fee paid.
- Every resolution — outcome and the amount credited.
- Fees separately. Where losses or costs are deductible, fees usually are too.
- Export regularly. Reconstructing a year of trades afterwards is far harder than exporting monthly.
Fees are recorded per trade and are typically small — see the fee schedule — but they add up across an active year and are worth capturing properly.
Availability varies by jurisdiction. 18+. Event contracts carry risk of loss.
You appear to be in the US. Polymarket’s international exchange blocks US IP addresses — use Polymarket US, the CFTC-regulated exchange, instead. See what’s available in your state.
Questions
Do I pay tax on Polymarket winnings?
In most jurisdictions, gains are taxable in some form. What differs — and what matters — is which form: gambling winnings, capital gains, or derivatives/contract income are treated very differently. Take advice specific to where you live.
Are event contracts taxed like gambling?
Not necessarily, and this is the crux. Polymarket US contracts are regulated as derivatives by the CFTC rather than as gambling, which can point toward different treatment from a sportsbook bet. We are not going to state a rule we cannot source — this is exactly the area to pay a professional for.
Does Polymarket send tax forms?
The non-custodial international exchange is not a broker holding your account, so do not expect conventional tax reporting from it. A regulated US venue is a different matter. Keep your own records regardless.
What records should I keep?
Deposits and withdrawals with dates and amounts, every trade with price and size, resolution outcomes, fees paid, and the USD value of USDC at each point. Export them regularly rather than reconstructing later.
Related
Fees
What you paid, for your records.
Withdrawals
The events you need to log.
Legal status
Why the derivatives classification matters.
Polymarket US
A regulated venue with different reporting.
All figures on this page verified 17 August 2026 against primary sources where reachable. Unconfirmed values are marked.