Polymarket Tax Calculator

How Polymarket Works (Tax Perspective)

Polymarket uses a Central Limit Order Book (CLOB) paired with on-chain settlement on Polygon. When you trade, you're buying or selling ERC-1155 conditional tokens through the CTF (Conditional Token Framework) contract at 0x4D97...6045.

Unlike Kalshi, Polymarket is not CFTC-regulated. This makes Section 1256 treatment less defensible. Most tax professionals recommend capital gains treatment — each conditional token position is a capital asset that's disposed of at settlement or sale.

Because Polymarket is crypto-native, you may also need to account for USDC on-ramp/off-ramp events depending on your overall crypto tax situation.

Most likely treatment for Polymarket. Each position treated as a capital asset — conditional tokens bought and sold/settled. Short-term rates apply for most trades.

Form: Form 8949 + Schedule D

Report net P&L as other income. Simpler approach, taxed at your marginal rate. Defensible for event contract winnings.

Form: Schedule 1

Less likely for Polymarket since it's not CFTC-regulated. However, some tax professionals argue binary options may still qualify. Higher risk position.

Form: Form 6781

Report gross winnings as gambling income. Losses only deductible if itemizing. Starting 2026, OBBBA caps loss deduction at 90%.

Form: Schedule 1 + Schedule A

Enter wallet address

Provide your Polygon wallet address. We read your ERC-1155 conditional token history directly from the blockchain.

Review positions

See every market you traded, with entry price, settlement, and profit/loss per position.

Compare tax methods

See all 4 treatments with exact dollar amounts. Capital gains is typically the recommended approach.

Download forms

Get pre-filled IRS forms. Form 8949 lists every position as a capital asset disposition.

Does Polymarket Send a 1099?

No. Polymarket does not issue 1099 forms. As a decentralized, crypto-native platform, Polymarket does not collect the tax identification information needed to generate 1099s. All trading happens on-chain via your personal Polygon wallet.

This does not mean your Polymarket profits are tax-free. The IRS requires you to report all income regardless of whether you receive a tax form. Failing to report prediction market gains can trigger penalties if the IRS later identifies the income through blockchain analysis or other means.

Our calculator reads your on-chain transaction history directly from Polygon, reconstructs every position, and generates the IRS forms you need — even though Polymarket itself provides no tax documents.

USDC and Crypto Tax Considerations

Polymarket uses USDC (USD Coin) as its settlement currency. When you deposit funds to trade on Polymarket, you're converting USD to USDC and bridging to Polygon. This on-ramp event is generally not taxable since USDC is pegged 1:1 to USD.

However, if USDC briefly depegs or you hold USDC for an extended period with a different cost basis, the conversion could have tax implications. Most traders can safely ignore this, but it's worth noting for completeness.

Your Polymarket prediction market gains and losses are separate from any broader crypto portfolio tax events. If you also trade ETH, BTC, or other tokens, you'll need to account for those separately using a crypto tax tool.

Are Polymarket profits taxable in the US?

Yes. All prediction market profits are taxable income in the United States regardless of the platform. The fact that Polymarket is decentralized and crypto-native does not exempt your gains from taxation.

How do I find my Polymarket wallet address?

Your Polymarket wallet address is the Polygon address you use to trade. You can find it in your browser wallet (MetaMask, Rabby, etc.) or in Polymarket's account settings. It starts with 0x and is 42 characters long.

Does Polymarket send a 1099?

No. Polymarket does not issue any tax forms. You are responsible for tracking and reporting your own gains and losses. Our tool reads your on-chain data and generates the necessary IRS forms for you.

Are USDC deposits and withdrawals taxable?

Generally no. USDC is pegged 1:1 to USD, so converting between USD and USDC is typically not a taxable event. However, if USDC depegs or you acquired USDC at a different cost basis, there could be implications.

Can Polymarket trades qualify for Section 1256?

Unlikely. Section 1256 applies to regulated futures contracts. Since Polymarket is not CFTC-regulated, the argument for 1256 treatment is weak. Most tax professionals recommend capital gains or ordinary income treatment for Polymarket.

What if I used multiple wallets on Polymarket?

You can import each wallet address separately. Our calculator consolidates positions across all wallets into a single P&L report and tax calculation.

How far back can you read my Polymarket history?

We read your complete on-chain history from the Polygon blockchain. Every conditional token transaction from your wallet is captured, going back to your first Polymarket trade.

Do I need to report Polymarket losses?

Reporting losses is optional but beneficial — losses can offset gains and reduce your tax bill. Under capital gains treatment, losses offset gains on Schedule D. Under gambling treatment, losses are deductible only if you itemize.