How prediction market winnings are taxed differs substantially across jurisdictions and hinges on variables such as trading volume, whether it constitutes your main source of earnings, and the way your country treats USDC-denominated activity. This overview covers the principal regulations across major markets — you should always seek advice from a qualified tax adviser in your own region before filing.
United States
- Most prediction market platforms restrict access from the US (Polymarket applies geographic blocking) — though blockchain-based transactions remain theoretically available
- The IRS classifies crypto holdings as tangible property; every USDC transaction may generate a taxable obligation
- Returns from prediction markets are generally taxed as short-term capital gains (at standard income tax rates for positions held under 12 months)
- Kalshi (operating under CFTC authorisation) generates 1099 forms; decentralised platforms do not — traders must declare manually
- Those trading frequently may qualify for professional trader status (allowing mark-to-market election)
United Kingdom
- Possible gambling exemption: returns may escape taxation if treated as gambling activity
- Investment classification triggers capital gains tax: £3,000 annual allowance applies in 2026
- Trading undertaken professionally counts as earned income — National Insurance contributions may be due
- HMRC guidance on prediction markets remains non-specific and unsettled
Germany
- §23 EStG: gains below €600 annually from private transactions escape taxation
- USDC retained beyond 12 months: profits potentially exempt under German cryptocurrency tax rules
- Active trading typically falls under income tax rules
- Glücksspielgewinne (gaming proceeds) normally face no tax — though prediction market status remains ambiguous
Australia
- The ATO views cryptocurrency as property: capital gains obligations arise on sale
- Assets owned for 12+ months qualify for 50% CGT reduction
- Gaming proceeds are ordinarily untaxed unless you're classified as a professional gambler
Best Practices Globally
- Export your full transaction log from PolyGram for submission purposes
- Employ crypto accounting platforms (Koinly, CoinTracking) to determine profit and loss positions
- Retain documentation for every USDC movement, including deposits and withdrawals
- Engage a tax specialist with cryptocurrency expertise in your location
FAQ
- Does PolyGram report my earnings to tax authorities?
- PolyGram does not presently furnish tax documentation to members. Traders bear sole responsibility for declaring prediction market income according to their local rules.
- Is USDC treated differently from volatile crypto for tax?
- Across most jurisdictions, USDC remains classified as a cryptocurrency subject to identical taxation as Bitcoin or Ethereum. Its price stability makes gain accounting simpler but does not alter the underlying tax regime.
- What records should I keep?
- Maintain copies of every transaction showing date, quantity, entry and exit prices, and settlement outcome. PolyGram permits users to download transaction records — retrieve these on a regular schedule.