Japan is turning stablecoins into everyday money — with fine print worth reading

Japan is quietly weaving regulated stablecoins into ordinary life. This week the financial group SBI began offering a 3 percent yield to customers who lend out a yen-pegged stablecoin, the convenience-store chain Lawson prepared to test stablecoin payments at a Tokyo store, and a payments company opened a service that lets shops accept dollar stablecoins alongside a yen-backed one.

A quick refresher: a stablecoin is a crypto token designed to hold a steady value by tracking a currency such as the yen or the U.S. dollar, which makes it useful for payments rather than speculation. Japan gave these tokens a legal home when amendments to its Payment Services Act took effect in 2023, creating a regulated category for fiat-linked stablecoins.

On the everyday-use side, HashPort, Lawson and telecom group KDDI plan to trial yen-stablecoin checkout at the Lawson Takanawa Gateway City store in August, using a non-custodial wallet while the shop rings it up through its normal point-of-sale system. Separately, the payments firm Netstars launched a service called Stablecoin Pay that lets merchants accept USDC, USDT and the yen-backed JPYC over the Solana and Polygon networks for a 0.98 percent fee, settling everything in yen so the shop never has to hold crypto.

The yield side is where a beginner should slow down and read carefully. SBI VC Trade opens applications on July 16 to lend out its JPYSC stablecoin for a 12-week term at an initial 3 percent annualized rate, which works out to about 0.69 percent over the full term. That beats the roughly 0.3 to 1 percent Japanese banks pay on yen deposits, but SBI is explicit that this is not a bank deposit, is not covered by deposit insurance, generally cannot be canceled early, and sits outside the rules that segregate customer assets, meaning you could lose some or all of your tokens if the company goes bankrupt.

The lesson for a newcomer is that stable does not mean risk-free. A yield higher than a savings account is being paid for a reason, and here the reason is that you are taking on a company's bankruptcy risk that an insured deposit would shield you from. Understanding exactly which protections you are trading away is the whole game. This is information, not investment advice.