Prediction market taxes, in one place

What it does

• Reads your own exports — the CSV from Kalshi, your public Polymarket profile, the annual statement from Robinhood — and merges them into a single cost-basis ledger.
• Handles the traps that quietly corrupt hand-built spreadsheets: exports denominated in cents, positions held through a proxy wallet, and USDC itself being a taxable layer underneath the trades.
• Produces a Form 8949 statement, Schedule D totals, and a CSV your filing software can import — plus a reconciliation worksheet showing which trades produced each line.
• If our totals do not reconcile against what the platform reported, it says so and refuses to export. A number you can check beats a number that looks finished.

Three treatments, side by side

How event contracts should be taxed is genuinely unsettled, and anyone who tells you otherwise is selling certainty they do not have. So we compute all three, show them next to each other with the reasoning and citations behind each, and leave the choice where it belongs — with you and your preparer.

Section 1256

60/40 long-term/short-term split, marked to market at year end. Argued for exchange-traded contracts on a regulated venue.

Capital gains

Ordinary short-term and long-term treatment per position, the way most brokerage activity is reported.

Ordinary income

Net winnings as ordinary income. The most conservative reading, and the one some preparers apply to event contracts.

Your trades are not stored

This is an architectural commitment, not a promise about how careful we intend to be. Your files are parsed in memory, the results are handed to you, and the session ends — nothing about your positions, amounts or wallet addresses is written to a database, because there is no table for it. We never ask for an API key or a password to any platform: everything runs on exports you already have the right to download.

Price

$39 once, per tax year. Not a subscription, and nothing renews on its own — you buy a filing season or you do not.