Free tells you if the bet is smart.
Pro shows you how to win money on it.

Lock it

Combos, the parlay hedger, is Pro: when your legs start hitting, it computes the exact bet to lock in a guaranteed profit instead of Kalshi's discounted cash-out. One good hedge can pay for a year of Pro many times over.

The ledger

We record every mispricing we flag before the market settles, then publish what happened to it, losers included, at contracttax.com/proof. If the record does not convince you, do not buy Pro. Nobody else in this space will show you that page, because most of them cannot afford to.

Your number

Upload your history to the free Trade Report and it prints a receipt: what your worst habits actually cost you, and what fees took from everything you won, in dollars. If it does not clear the price of Pro, we say so on the page. Nobody else will show you that.

10 min

Pro watchlist alerts check every 10 minutes while you sleep. One repricing caught before the crowd is a month of Pro.

5,000

The Sweat Board's night distribution simulates your open book 5,000 times, live: your odds of finishing green, the range, best and worst case. Nobody else shows this.

If you’re down money

Start free, because the tools that stop the bleeding shouldn’t cost anything: the Comeback Plan turns your history into rules with receipts, Loss Rescue shows whether this year’s loss is a refund of taxes you already paid, and the Guardian emails you before your monthly number is gone, not after. When you’re ready, Pro adds the weekly grading, alerts, and the full board, the coach on top of the plan.

If you’re here for edge

The data layer compounds daily and can’t be backfilled by anyone who starts later: the Truth Machine measures what prices really mean, the Strategy Lab backtests your rules against settled outcomes, and the report’s You vs. the market’s truth table names your edge and leak zones. Pro puts the full Radar board, unlimited alerting, and the night distribution on top.

Is the free plan really free?

Yes, and it's deliberately a full product: your trades analyzed, all four tax treatments, IRS-ready forms, the Comeback Plan, Loss Rescue, and the Bankroll Guardian with budget emails. No time limit, no card.

What does Pro add?

Pro unlocks the power layer: Combos (the parlay hedger that locks in a guaranteed profit when your legs hit), the Edge Lab (a statistical skill-vs-luck test and sizing counterfactual on your own record), the full Radar board (free shows the top 5), unlimited watchlist with offline email alerts (free watches 3 with on-page alerts), the Sweat Board night distribution, one-click TurboTax .txf export, your Sharp Score card and trend, full performance analytics, auto-sync from Kalshi, and a verified check on the leaderboard.

Why is the Guardian free if it's so useful?

Because a loss-limit tool behind a paywall is a loss-limit tool that failed at its job. Budget tracking and threshold emails are free for everyone, forever. Pro exists for the power features, not the safety ones.

Does Pro actually pay for itself?

Run your own numbers in the free Trade Report rather than taking ours. The True Cost Machine shows what share of everything you won went to fees, and what resting your orders instead of crossing the spread would have saved: for an active trader that alone is usually multiples of $228. The Comeback Plan prices what your worst habits cost. One hedge caught on a live parlay, or one watchlist alert caught while you slept, can cover a year. The report shows your specific figures, not ours.

Can I cancel anytime?

Yes, and in one click. Go to your account page and open the billing portal, where you can change your card, switch between monthly and annual, or cancel outright. Cancelling takes effect at the end of the period you already paid for, and you keep Pro until then. No email, no phone call, no retention maze. Your free plan stays free.

Do you support Polymarket?

ContractTax is built for Kalshi today. Polymarket support is on the roadmap.