资料来源
本页所有数据均对照一手资料核实:监管机构文件、交易平台官方文档与官方赛果。价格与规则会变动,交易前请再次向平台确认。
- 1.Publication 550, Investment Income and Expenses — Internal Revenue Service
- 2.Topic no. 419, Gambling income and losses — Internal Revenue Service
- 3.California income tax guidance — California Franchise Tax Board
- 4.Kalshi Help Center — fees, funding and account rules — Kalshi
- 5.Kalshi market listings and contract rulebooks — Kalshi
- 6.Polymarket documentation — markets, fees and resolution — Polymarket




