BitcoinWorld Japan’s Bitbank Suspends Accounts Linked to Polymarket and Prediction Platforms Japanese cryptocurrency exchange bitbank has announced it will suspendBitcoinWorld Japan’s Bitbank Suspends Accounts Linked to Polymarket and Prediction Platforms Japanese cryptocurrency exchange bitbank has announced it will suspend

Japan’s Bitbank Suspends Accounts Linked to Polymarket and Prediction Platforms

2026/06/15 22:50
4 min read
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Japan’s Bitbank Suspends Accounts Linked to Polymarket and Prediction Platforms

Japanese cryptocurrency exchange bitbank has announced it will suspend user accounts found to be engaging with decentralized prediction market platforms, including Polymarket. The move, detailed in a company blog post and reported by local media outlet CoinPost, signals a tightening of regulatory oversight on crypto-related activities that Japanese authorities may classify as gambling.

Account Suspension Policy and Rationale

According to bitbank’s announcement, the exchange will monitor for deposits or withdrawals linked to prediction market services, even if those platforms operate outside Japan. The company stated that accessing such services from Japan for financial gain could be considered gambling under Japanese law. This interpretation extends to platforms like Polymarket, which allow users to bet on the outcomes of real-world events using cryptocurrency.

Bitbank emphasized that suspended accounts will lose access to all functions, including login capabilities, cryptocurrency and yen transactions, and trading. The exchange explicitly stated it will not be held responsible for any losses incurred as a result of such suspensions. This policy places the onus on users to ensure their trading activities comply with Japanese regulations.

Broader Regulatory Context in Japan

Japan has historically maintained a strict stance on gambling, with only state-sanctioned activities like horse racing and certain lotteries being legal. The country’s Payment Services Act and Financial Instruments and Exchange Act govern cryptocurrency exchanges, requiring them to register with the Financial Services Agency (FSA). While prediction markets operate in a legal gray area, bitbank’s proactive measure suggests a cautious interpretation of the law, likely influenced by FSA guidance.

Polymarket, a decentralized platform built on the Polygon network, has gained significant traction globally for allowing users to trade on the probability of events ranging from political elections to sports outcomes. However, its structure resembles a betting exchange, which may conflict with Japan’s strict gambling prohibitions.

Implications for Japanese Crypto Users

This development has immediate practical consequences for Japanese crypto traders. Users who have engaged with Polymarket or similar platforms risk losing access to their bitbank accounts and any funds held within them. The policy also creates a chilling effect, potentially discouraging participation in decentralized finance (DeFi) activities that regulators might view unfavorably.

For the broader crypto industry in Japan, bitbank’s decision could set a precedent. Other exchanges may adopt similar policies to avoid regulatory scrutiny, further limiting the options available to Japanese users who wish to explore decentralized applications.

Conclusion

Bitbank’s suspension policy reflects the ongoing tension between Japan’s traditional regulatory framework and the borderless nature of decentralized crypto platforms. As prediction markets grow in popularity, exchanges and users alike will need to navigate a complex legal landscape. For now, Japanese crypto holders should carefully review their exchange’s terms of service and avoid activities that could be construed as gambling to protect their account access.

FAQs

Q1: What is Polymarket?
Polymarket is a decentralized prediction market platform built on the Polygon blockchain. Users can trade on the outcomes of real-world events, such as elections, sports matches, and economic indicators, using cryptocurrency.

Q2: Why is bitbank suspending accounts linked to prediction markets?
Bitbank believes that accessing prediction market services from Japan for financial gain could be considered gambling under Japanese law. To comply with regulations and avoid legal risk, the exchange is proactively suspending accounts involved in such activities.

Q3: What should I do if I have used Polymarket and have a bitbank account?
If you have used Polymarket or similar platforms, you should immediately stop any related deposits or withdrawals and consider transferring your funds to a different wallet or exchange that does not have such policies. Bitbank has stated it will not be liable for losses resulting from account suspensions.

This post Japan’s Bitbank Suspends Accounts Linked to Polymarket and Prediction Platforms first appeared on BitcoinWorld.

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