Compute your report
Paste your Polymarket wallet addresses (up to 3, comma-separated). Everything is fetched from Polymarket's public API and processed here in this tab — nothing is ever uploaded to us. Country-aware cost basis, winners redeem at $1.00, worthless positions realize as losses.
Everything, in the open
Realized and unrealized P&L, per market and per tax year — visible in full before you pay.
Your country's method
US Form-8949 FIFO, UK Section 104 pooling, or the German one-year rule — switch anytime.
Private by architecture
No account, no upload, no cookies. The report lives in your tab; only a $19 USDC payment is ever public.