For Kalshi & Polymarket Traders

Do you actually know what you owe the IRS?

Most prediction market traders have no idea. Kalshi sends a 1099-B — but is it gambling income or capital gains? Polymarket runs on crypto — that's a separate tax nightmare. Your CPA is guessing too.

Predictr shows your real P&L across Kalshi and Polymarket — and generates a tax report your accountant will actually understand.

predictr — portfolio overview
Estimated Tax Exposure
$???
You don't know. That's the problem.
Unreported Gains
$4,821
IRS has no 1099 from Polymarket
Classification
UNKNOWN
Gambling? Capital gains? Both?
IRS Penalty Risk — Misclassification
Underpayment penalty
up to 20%
Failure to report
+ interest
Audit risk
unknown
🗳
Fed Rate Cut · March 2026
KALSHI
+$312.40
800 shares @ $0.61
₿
BTC above $95k · Mar 31
POLYMARKET
−$88.20
500 shares @ $0.44
⚡
Super Bowl LXI Winner
KALSHI
+$540.00
1,200 shares @ $0.55
$13B+
Monthly trading volume
612k+
Active traders
$0
Tax software with PM support
$???
What you owe the IRS

Tax season hits different
when you trade prediction markets

No tax software supports this. No CPA has done it before. You're on your own — until now.

01
😰

Nobody knows the rules

Is Kalshi income gambling (Schedule C) or derivatives (Form 6781)? IRS has no clear guidance. CPAs give contradictory advice. Getting it wrong means penalties.

02
🔗

Polymarket = crypto tax nightmare

Every trade on Polymarket is an on-chain USDC transaction. That's potentially hundreds of separate taxable events your accountant has never seen before.

03
📭

Kalshi's 1099-B doesn't help

You get a form but no guidance on what to do with it. TurboTax doesn't have a prediction markets flow. H&R Block doesn't either. You're flying blind.

One tool to know exactly
where you stand

Start with your real P&L. End with a tax report your CPA can actually use.

Free

See Your Exposure

Enter your Polymarket wallet. Instantly see your unreported gains and what you're potentially on the hook for.

  • Real-time P&L across all positions
  • Unreported gains summary
  • Classification flags (crypto / gambling / capital gains)
  • No signup required
Free forever
Pro

Understand Your Tax Position

Add Kalshi. Get a unified view of your real tax exposure across both platforms with clear classification guidance.

  • Kalshi + Polymarket combined
  • Section 1256 vs gambling vs capital gains analysis
  • Loss deduction calculator
  • Full trade history export (CSV)
$19 / month
Tax Filing

Generate Your Report — ready for your CPA

Your specific numbers, your specific forms. Not generic advice — structured data accountants actually use.

  • IRS Form 8949 auto-generated
  • Schedule D summary
  • USDC transaction reconciliation for Polymarket
  • TurboTax-compatible CSV
  • Tax summary letter for your accountant
$49 / one-time · tax season

Connects where
you already trade

No new accounts, no new wallets. We read your existing data directly from platform APIs and the blockchain.

Polymarket Live
Kalshi Live
Manifold Coming soon
PredictIt Coming soon
🔒
Your data stays yours
We read public blockchain data and your API keys — nothing is stored on our servers without your consent.
⚖️
Built with tax professionals
Tax classification logic reviewed by CPAs with crypto and derivatives experience. Not legal advice — structured guidance.
📋
IRS-compliant output
Forms generated match IRS Form 8949 and Schedule D specifications. Export directly to TurboTax or hand to your accountant.