Are Polymarket gains taxable?
Yes, Polymarket gains are taxable in the United States. According to IRS Topic 420 on Bartering Income, you must include in gross income the fair market value of goods or services received from betting activities.
Gains from prediction markets are treated similarly to other forms of gambling or bartering income. Key points: Winnings should be reported on Schedule C (Form 1040) for business activities or Schedule 1 for personal winnings. Significant income from trading may require making estimated tax payments.
Form 1099-B may be issued for reportable transactions. Losses may be deductible in certain circumstances but tax rules are complex. Cryptocurrency transactions may have additional reporting requirements.
Consult a tax professional for your specific situation as tax regulations vary by country.