BIS Warns Stablecoins Bypass Capital Controls, Threaten Monetary Sovereignty

Headline: BIS study warns stablecoins are bypassing capital controls — and regulators are running out of tools The Bank for International Settlements has laid out a stark warning: dollar-backed stablecoins are slipping past capital controls in more than 130 economies, undermining traditional tools that countries use to protect exchange rates and monetary sovereignty. What the research found - BIS researchers compared inflows of dollar-pegged stablecoins with foreign-currency bank deposits during episodes of financial stress. Both rose when sovereign risk spiked, banks faltered or exchange-rate pass-through intensified — but only traditional dollar deposits fell when countries imposed limits on foreign-currency holdings or capital flows. - Stablecoin inflows, by contrast, were largely unaffected by those restrictions. The likely reason: stablecoins can move via crypto exchanges, peer-to-peer markets and self-hosted (unhosted) wallets without touching domestic banks — in short, “partly circulating outside the regulatory perimeter.” - Once established, both deposit and stablecoin dollarization tend to persist. The study found little evidence that people merely substitute between the two; instead, they often expand together, increasing overall dollar exposure in an economy. Why this matters - Monetary sovereignty is at risk. If households and businesses store or transact in U.S. dollars outside regulated banks, central banks lose control over money demand and some monetary-policy channels. - Stablecoins are not just a store of value: they can be used for payments, remittances and trade settlement. That shifts transactions and data flows away from regulated intermediaries, making capital movements harder for authorities to monitor and control. - Traditional capital controls work because banks enforce rules. Stablecoins’ bearer-like, blockchain-native properties (transferable through unhosted wallets) make full enforcement difficult; measures that block domestic intermediaries from touching unapproved stablecoins are likely to be imperfect. Real-world examples - Nigeria: The IMF found stablecoins accounted for more than 65% of the country’s cross-border crypto inflows in 2024, with total inflows approaching recorded remittance values by 2025. Households use USDT and USDC for remittances, investments and dollar access; SMEs use them to pay foreign suppliers. When the Central Bank of Nigeria limited banks’ dealings with crypto users in 2021, activity shifted toward peer-to-peer channels rather than disappearing. - Latin America: Bitso Business reported an 81% year-over-year jump in stablecoin payment volume in H1 2026. In 2025, USDT and USDC made up about 40% of regional crypto purchases, overtaking Bitcoin for the first time. - Market scale: Stablecoin market capitalization rose to roughly $309.7 billion from about $260 billion a year earlier, increasing the tokens’ role in payments and savings and heightening regulatory concern. Policy implications and alternatives - BIS researchers suggest that relying solely on rules designed for bank deposits will be insufficient. Policymakers may need tools tailored for blockchain-based assets that consider foreign exchanges, peer-to-peer transfers and self-hosted wallets. - There is a model that keeps tokenized money inside regulated rails: Project Agorá — a BIS initiative involving eight central banks and more than 40 regulated institutions — has tested cross-border settlement using tokenized commercial-bank deposits and central-bank reserves. Tokenized bank money stays within a regulated two-tier system, unlike privately issued stablecoins that can circulate beyond it. Bottom line Stablecoins are fast becoming a parallel channel for dollar exposure that traditional capital controls struggle to contain. For emerging and developing economies — where inflation, currency depreciation and FX scarcity make dollar assets attractive — the challenge is acute. Regulators face a trade-off: clamping down risks pushing activity deeper into unregulated channels, while inaction risks erosion of monetary control and visibility into cross-border flows. The BIS study underscores that policymakers need new, crypto-native strategies if they want to address digital dollarization without shutting off innovation in cross-border payments.