
The BIS says stablecoins fail as full currencies and their $320B, 99% dollar-pegged supply risks monetary sovereignty in developing economies. It proposes a unified ledger and the Agora project instead.
The Bank for International Settlements, in its 2026 annual economic report released Sunday, said stablecoins do not function as full currencies and could accelerate dollarization in emerging economies, weakening their monetary sovereignty. The report, published during the BIS annual general meeting in Basel, assessed stablecoins against four criteria: uniqueness, elasticity, interoperability, and integrity. It found existing models fall short on all fronts.
Stablecoins can trade at prices that deviate from their peg on secondary markets, the report said. Their redemption mechanisms are more like exchange-traded fund shares than currency, making them clunky for daily use. BIS General Manager Agustín Carstens has previously made similar points about their financial nature.
The total stablecoin market reached roughly $320 billion by the end of May, the BIS said. More than 99% of that supply is pegged to the U.S. dollar, with Tether's USDT and Circle's USDC dominating. The report warned that when households in developing countries adopt dollar-pegged tokens as a store of value, it shifts capital flows and erodes demand for local currency. The BIS called this "dollarization of stablecoins" and said it challenges monetary sovereignty.
The BIS also modelled the economic consequences of widespread stablecoin adoption. Its simulations showed that large-scale growth could push up bank funding costs, reduce credit availability, and slightly lower output in the medium term. The benefits from increased demand for public debt would not fully offset those costs, the report found. Even at very high capitalisation, the negative impact remained "limited" in the scenarios studied.
The report noted that stablecoins account for a significant share of illicit transactions on some blockchains. Controls are harder to enforce when users hold assets in autonomous wallets, the BIS said.
Rather than trying to regulate stablecoins into becoming full currencies, the BIS proposed folding tokenization into the existing central bank and commercial bank system. It floated a unified ledger that would include central bank reserves, commercial bank money, and regulated private assets. The institution cited the Agora project, a cross-border payment prototype involving multiple central banks and private firms, as a proof of concept.
The report was published Sunday. The BIS said the next step is international coordination on rules.
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