MAS proposes 100% reserve stablecoin rules

TLDR

Singapores central bank is moving to require MAS regulated stablecoins to be fully backed by segregated reserves and to stop paying interest to holders.

1. MAS proposes that licensed stablecoin issuers hold 100 percent reserves in segregated accounts, ban interest on MAS regulated stablecoins, and introduce stress tests plus wind down plans.
2. The rules would raise trust in a small set of highly regulated SGD and G10 pegged stablecoins, while making yield style products harder and pushing riskier designs outside the MAS label.
3. Key next steps are the public consultation, how foreign and joint issuers are treated, and whether other regulators copy Singapores strict full reserve plus no interest model.

Deep Dive

1. What MAS Is Proposing

The Monetary Authority of Singapore (MAS) has published draft legislative amendments to the Payment Services Act that would give full effect to its stablecoin framework. These changes would require MAS regulated stablecoin issuers to maintain 100 percent reserves in segregated accounts and prohibit paying interest or similar benefits on those tokens, according to a regulatory summary of Singapores proposed 100 percent reserve and yield ban rules.

Issuers would also need to run regular stress tests, prepare recovery and orderly wind down plans, and enhance protection of customer funds received before stablecoins are minted, as described in MAS focused coverage of legislative amendments to the Payment Services Act.

The framework applies to single currency stablecoins pegged to the Singapore dollar or G10 currencies, and only licensed issuers meeting these standards could use the MAS regulated stablecoin label. Others would remain general digital payment tokens under looser rules.

2. Impact On Issuers And Users

For issuers, 100 percent segregated reserves plus capital and stress test requirements significantly increase compliance and balance sheet costs, but they also create a high trust label that could appeal to institutions. The explicit ban on interest means MAS regulated stablecoins cannot compete with bank deposits on yield, pushing any earn features into separate, regulated investment products instead of being embedded in the coin itself.

Crypto native stablecoins like USDT or USDC could keep circulating in Singapore, but without the MAS regulated label they may be less attractive for regulated financial institutions and tokenized finance projects that need a clearly supervised settlement asset.

3. What To Watch Next

The proposals are out for public consultation, with comments accepted until mid October 2026, and are not yet in force. The final text will determine how strict reserve composition, reporting, and redemption time limits really are.

MAS is also considering allowing joint Singapore foreign issuers to qualify and selectively recognizing some foreign stablecoins overseen by comparable regimes, which could matter for large USD or EUR tokens if they seek Singapore recognition.

Globally, the move aligns Singapore with other emerging regimes that demand one to one backing and often restrict interest, such as the US GENIUS Act, so any convergence toward this model will shape which stablecoins become the default rails for compliant cross border payments.

Conclusion

Singapores 100 percent reserve, no interest stablecoin proposal points toward a tightly regulated, bank like model for a narrow class of tokens that want official recognition. For crypto users and builders, the key shift is that trusted stablecoins in Singapore will likely be safer but yield free, while anything chasing higher returns will sit outside the MAS regulated label and carry clearer regulatory and risk trade offs.