How It Works
From wallet address to IRS-ready tax forms in minutes.
1
Enter Your Wallet
Paste your Polygon wallet address. Support for multiple wallets — add as many as you need.
2
Blockchain Scan
We scan every on-chain transaction: buys, sells, splits, merges, redemptions, and conversions across all Polymarket contracts.
3
FIFO Calculation
Each trade is matched to tax lots using First-In-First-Out ordering. Cost basis, proceeds, and gain/loss are calculated with full decimal precision.
4
Snapshot Reconciliation
Your computed positions are cross-referenced against Polymarket's official accounting snapshot to verify accuracy.
5
Download Reports
Get IRS Form 8949, detailed transaction history, and TurboTax-compatible CSV files ready for filing.
Transaction Types We Handle
Buy/Sell orders (CLOB)
Position Splits (USDC → YES+NO)
Position Merges (YES+NO → USDC)
Payout Redemptions
Neg-Risk Conversions
ERC-1155 Transfers
USDC Deposits & Withdrawals
Maker Rebates & Rewards