Bitfork Tax
Polymarket taxes, computed in your browser
2026 is the first year of Form 1099-DA. Paste your address and get cost basis, gains, and filing-ready forms — nothing is ever uploaded.
- Nothing uploaded — no server in the loop
- No account, no email
- US · UK · Germany · International packs
- Pay once in USDC — $19
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.
See exactly what you get
No stock photos — these are the actual product surfaces, rendered with sample data. What you preview for free is what you file.
Simple pricing
Preview
$0
- Full realized & unrealized report
- Per-market and per-year breakdowns
- Complete published methodology
Filing export
One time$19/ $29 for up to 3 wallets
- Form 8949/SA108-style CSV by country pack
- Full report with totals and methodology
- Unrealized positions + rewards income
- Paid in USDC on Base or Polygon
What you give up to use this
Nothing, on our side. We are not able to leak what we never collect.
No account
Nothing to sign up for
No cookies
Not one, ever
No tracking
No analytics, no pixels
No custody
Keys stay in your wallet