The tax implications of prediction market earnings differ substantially across jurisdictions and hinge on elements such as trading volume, whether this constitutes your primary source of revenue, and your region's stance on stablecoin-denominated transactions. This overview outlines the principal considerations — always engage a qualified tax adviser in your locality for personalised guidance.
United States
- Most prediction market platforms restrict access for US-based participants (Polymarket implements geographic restrictions) — though direct blockchain engagement remains technically available
- The IRS classifies digital assets as property; each USDC transaction may trigger a taxable event
- Earnings from prediction markets are ordinarily taxed as short-term capital gains (at standard income tax rates for holdings under 12 months)
- Kalshi, operating under CFTC oversight, generates 1099 documentation; decentralised platforms do not — participants must file independently
- Active market participants may potentially qualify for trader status (enabling mark-to-market election)
United Kingdom
- Possible gambling exemption: returns may be entirely exempt if your activity qualifies as gambling under UK law
- Investment classification results in capital gains taxation: the £3,000 annual CGT allowance applies in 2026
- Trading conducted as a profession constitutes income — National Insurance contributions may be due
- HMRC has not issued comprehensive guidance on how prediction markets should be classified
Germany
- §23 EStG permits tax-free treatment of private asset disposals generating under €600 annually
- Holding USDC for more than 12 months: profits may qualify for exemption under German cryptocurrency tax rules
- High-frequency activity is likely to be reclassified as commercial income
- Glücksspielgewinne (gaming-related winnings) typically enjoy tax-exempt status — though the regulatory classification remains ambiguous
Australia
- The ATO classifies digital assets as property: capital gains tax applies upon sale or exchange
- Assets retained for 12 months or longer qualify for a 50% CGT concession
- Gambling returns are ordinarily not taxable unless the participant is classified as a professional gambler
Best Practices Globally
- Export your full transaction record from PolyGram for use in tax filings
- Employ dedicated crypto accounting platforms (Koinly, CoinTracking) to compute profit and loss positions
- Maintain documentation of all USDC activity, encompassing deposit and withdrawal records
- Retain a crypto-informed tax professional familiar with your local regulations
FAQ
- Does PolyGram report my earnings to tax authorities?
- PolyGram presently does not furnish tax documentation to participants. You bear full responsibility for declaring prediction market income according to your local tax regime.
- Is USDC treated differently from volatile crypto for tax?
- Across most jurisdictions, USDC remains classified as a digital asset subject to identical taxation as Bitcoin or Ethereum. Its price stability streamlines gain computation yet does not alter the underlying tax framework.
- What records should I keep?
- Retain documentation for every transaction including timestamp, quantity, entry and exit prices, and settlement outcome. PolyGram supplies downloadable transaction records — obtain these on a regular schedule.