Kalshi 还是 Polymarket 更便宜？

这取决于用例。Polymarket 没有单笔交易费用，但有充值/提现摩擦。Kalshi 收取每份合约费用，但 ACH 转账免费。对于在平台保留资金的活跃交易者，Polymarket 更便宜。对于进行存取款的散户交易者，成本大致相当。

Kalshi 每笔交易收取多少费用？

Kalshi对大多数合约收取大致0.07美元的往返费用，低价合约和高交易量市场的费用会有所降低。

Polymarket收取费用吗？

Polymarket不收取每笔交易的费用，但通过其他机制赚取利润，并对USD兑USDC的充值（通常信用卡为1–3%）和提现收取少量费用。

在Kalshi存款免费吗？

ACH银行转账是免费的。电汇和借记卡存款会产生少量手续费。

哪个平台的点差更好？

在交易量最高的市场，两个平台的点差都在1-2美分之间。Polymarket在加密原生和政治合约方面通常有更紧密的点差；Kalshi在美国体育和宏观市场方面通常有更紧密的点差。

Are prediction markets legal in the US?

Yes. federally-regulated event-contract platforms operate under federal commodities law, which preempts state gambling statutes. That makes Kalshi, Polymarket, Sleeper, Chalkboard, Novig, Rebet, and Crypto.com legal for US traders to use today — even in states where traditional online sportsbooks remain unavailable.

Who regulates the platforms I am trading on?

The Commodity Futures Trading Commission (CFTC) — the same federal agency that regulates futures, options, and swaps. Platforms operate as Designated Contract Markets (DCMs) and must follow rules on disclosures, market integrity, customer protection, and segregation of customer funds.

Do I need to pay tax on my winnings?

Yes. Profits are taxable as either short-term capital gains or ordinary income at both federal and state levels. There is no de minimis exemption. Some Kalshi contracts may qualify for Section 1256 60/40 treatment. Consult a CPA — this is not tax advice.

Is my money protected if a platform fails?

federally-regulated event-contract platforms are required to keep customer funds segregated from operational capital. That gives meaningful protection in the event of operator bankruptcy, but it is not the same as FDIC insurance. Only fund accounts with money you are prepared to lose.

What disclosures should I read before trading?

Read each platform's contract resolution rules carefully — they vary across venues for the same event. Also review our editorial Disclosure for how we earn revenue from affiliate partnerships and how that affects (and does not affect) our coverage.

What are the age and residency requirements?

You must be 21 or older and a US resident with a valid government ID. KYC verification is mandatory and typically completes in 5–60 minutes.

Guide · 7 min read

Kalshi 与 Polymarket 费用：2026 年完整成本明细

作者 Catie Di Stefano发布于 2026年4月21日更新于 2026年8月5日

Polymarket 没有单笔交易费用。Kalshi 每笔往返交易收费约 0.07 美元。但总成本情况有所不同——这里是真正重要的并列比较。

本页面的部分链接为联盟链接 —— 如您注册，我们可能会获得佣金，对您无任何额外费用。我们如何盈利.

独立教育指南。与国际足联（FIFA）或任何官方世界杯机构均无关联、认可或合作关系。

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.Kalshi Help Center — fees, funding and account rules — Kalshi
2.Polymarket documentation — markets, fees and resolution — Polymarket
3.Kalshi market listings and contract rulebooks — Kalshi
4.Polymarket Learn — how the exchange works — Polymarket
5.Customer advisories and investor protection notices — U.S. Commodity Futures Trading Commission
6.Designated Contract Markets (DCMs) — U.S. Commodity Futures Trading Commission

Editorial coverage

Polymarket is the world's largest prediction market, with a US iPhone app for event contracts.

We don't operate Polymarket and don't accept signups on this site. For state-specific availability and guidance, jump to the sibling editorial site for your jurisdiction.

了解更多关于足球的预测市场

联盟合作伙伴

在 Kalshi 交易足球事件合约 — 交易 $25 即可获得 $25，代码 WCPREDICTS。

Kalshi 是受联邦监管的事件合约交易所，覆盖足球、政治与文化。几分钟即可开户，交易 $25 后 $25 随之到账。

在 Kalshi 注册 →

Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.

本页面的部分链接为联盟链接 —— 如您注册，我们可能会获得佣金，对您无任何额外费用。我们如何盈利.

独立教育指南。与国际足联（FIFA）或任何官方世界杯机构均无关联、认可或合作关系。

Guide

常见问题

Kalshi 还是 Polymarket 更便宜？: 这取决于用例。Polymarket 没有单笔交易费用，但有充值/提现摩擦。Kalshi 收取每份合约费用，但 ACH 转账免费。对于在平台保留资金的活跃交易者，Polymarket 更便宜。对于进行存取款的散户交易者，成本大致相当。
Kalshi 每笔交易收取多少费用？: Kalshi对大多数合约收取大致0.07美元的往返费用，低价合约和高交易量市场的费用会有所降低。
Polymarket收取费用吗？: Polymarket不收取每笔交易的费用，但通过其他机制赚取利润，并对USD兑USDC的充值（通常信用卡为1–3%）和提现收取少量费用。
在Kalshi存款免费吗？: ACH银行转账是免费的。电汇和借记卡存款会产生少量手续费。
哪个平台的点差更好？: 在交易量最高的市场，两个平台的点差都在1-2美分之间。Polymarket在加密原生和政治合约方面通常有更紧密的点差；Kalshi在美国体育和宏观市场方面通常有更紧密的点差。

Legal & Compliance

Legality, regulation, and your protections

For full guardrails, see our Responsible Trading guide and our editorial Disclosure. This page is informational, not legal or tax advice.

负责任交易

安全交易：值得关注的问题

在预测市场交易和赌博一样吗？: 不一样。预测市场是受联邦监管的事件合约 — 属于金融衍生品，而非赌场游戏。但即便如此，你仍可能损失全部投入资金。请将投入的资金视为你愿意承担损失的金额。
我应该用多少钱交易？: 只用不会影响房租、账单或储蓄目标的钱。通用经验法则：将预测市场的总敞口控制在你可支配收入的 1–5%。
问题交易的警告信号有哪些？: 为追回损失而交易、向家人隐瞒活动、借钱来充值、错过工作或睡眠，或感觉无法停止。如有以上任一情况，请停止交易并致电 1-800-GAMBLER。
在美国我可以从哪里获得帮助？: 致电全国问题赌博求助热线 1-800-GAMBLER（免费、保密、24/7），或访问 ncpgambling.org。大多数平台也在账户设置中提供自我排除和存款限额工具。
我可以设置存款或亏损限额吗？: 可以。Kalshi、Polymarket、Sleeper 和 Chalkboard 都提供自设的存款限额、亏损限额和冷静期。请在开户时设置，而不是在亏损一周后再设。

如果你或你认识的人需要帮助，请致电 1-800-GAMBLER 或访问 ncpgambling.org.

后续步骤

准备开始了吗？

Kalshi

监管领导者。