Key takeaway: Prediction market earnings face taxation across nearly all jurisdictions. How authorities classify your gains—whether as capital appreciation, wagering returns, or standard income—depends on your location and trading frequency. Comprehensive documentation of all transactions is essential.
The uncomfortable reality many traders avoid: are prediction market returns subject to tax liability? The answer is straightforward: in virtually all cases, yes. Below is a comprehensive regional analysis of how tax authorities globally approach prediction market earnings.
United States
Although the IRS has not released formal rulings specific to prediction markets, established tax doctrine governs these positions:
- Capital gains treatment: Should prediction market shares qualify as assets (comparable to digital currencies), gains face short-term capital gains taxation (at marginal rates up to 37%) when disposed within twelve months
- Wagering income: Under a gambling classification, all proceeds become taxable ordinary income reported via Schedule 1, Line 8b. Offsetting losses against winnings is permitted (Schedule A), though deductions cannot reduce other income categories
- Kalshi (regulated): Generates 1099 documentation for American participants. Polymarket does not issue forms — yet you remain obligated to self-report all activity
United Kingdom
HMRC's standard position classifies prediction market returns as betting proceeds, typically exempt from duty for non-professional participants. Nuances exist:
- Should prediction markets constitute your principal occupation, HMRC may reclassify activity as commercial trading (liable to income tax)
- USDC settlement and conversion mechanics may generate separate taxable events under capital gains rules
- Those engaged professionally should obtain formal HMRC advice
European Union
Member states apply divergent tax frameworks:
- Germany: Gains taxed under private asset disposal or speculative trading provisions (consult our German tax guide)
- France: Crypto-denominated gains subject to flat 30% levy (PFU), encompassing prediction market settlements in crypto form
- Netherlands: Annual wealth assessment (Box 3) on total holdings rather than realised transaction gains
Australia
The ATO categorises prediction market earnings as taxable income. Frequent traders face assessment as ordinary income earners. Occasional participants might attempt hobbyist classification, though the ATO has grown stricter regarding crypto-related and crypto-adjacent trading.
Record-keeping best practices
Across all jurisdictions, preserve documentation covering:
- All transactions: execution date, contract name, position type (YES/NO), entry price, volume
- Account funding and redemptions including exact timestamps and values
- Exchange rates for USDC and fiat conversions at each transaction moment
- Platform charges and fee statements
- Final settlement prices and distribution receipts
PolyGram's tax reporting module automatically produces IRS 8949-ready summaries and EU MiCA-formatted datasets derived from your complete trading ledger. Start trading on PolyGram →