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The International Monetary Fund has raised a fresh red flag over the global rise of stablecoins. In its report Understanding Stablecoins, the IMF warns that dollar-based tokens could make people give up their local currencies even faster than before.
This shift, known as currency substitution, often happens in economies where inflation is high or where trust in national money has already faded. Once trust is broken, it usually takes a long time to return.
The IMF says the real accelerant is the effortless movement of these tokens across borders. Someone living in an unstable economy only needs a smartphone to switch into a dollar stablecoin. No long queues at the bank. No fear that the local currency will lose value overnight. But this convenience comes at a cost.
Central banks struggle to steer money flows or defend the value of their currency when people start quietly moving into digital dollars. It’s like trying to manage traffic when half the cars start using routes you can’t see.
By October 2025, the stablecoin market reached about $314 billion. USDT held more than $150 billion, while USDC stayed near the $70–75 billion range. At this scale, stablecoins shape how people save, spend, and move money, especially in countries under economic pressure. They are no longer viewed as simple trading tools. They now play a real role in daily financial activity for millions of users.
According to the IMF, stablecoins can weaken capital controls because people can move funds across borders without ever touching a bank. This reduces the visibility central banks need during periods of economic stress. A big chunk of stablecoin activity also happens through unhosted wallets, where user identity is often unclear, making reliable financial data even harder to collect.
Regions across Africa, the Middle East and Latin America show the highest stablecoin use relative to economic size. Many of these areas have dealt with currency pressure for years, sometimes decades. When a weak currency meets easy access to digital dollars, people naturally look for safer options. The IMF warns that this can trigger sudden shifts that catch policymakers off guard.
There is also the risk of stablecoin runs. If users start doubting whether an issuer truly holds enough reserves, mass redemptions could follow. Imagine thousands of people trying to withdraw at once. Issuers would have to dump assets quickly, including government bonds. A fire sale like that can affect broader markets, not just crypto.
The IMF notes that global rules for stablecoins remain uneven. Japan treats stablecoins as digital money and only allows banks and licensed trusts to issue them. The European Union follows MiCA, which sets strict rules for reserve backing and regular reporting.
In the United States, most oversight still sits at the state level while new federal laws are being phased in. The United Kingdom ties stablecoin operations to the payments system and requires firms to meet payment service standards. These separate approaches let issuers choose the region with lighter demands, creating gaps that weaken oversight.
Still, the IMF is not calling for stablecoins to be shut down. It accepts that they are now part of global finance. The bigger question is how countries coordinate new rules and manage the growing risk of currency substitution.
The IMF’s message is clear. Stronger cooperation is needed before stablecoins become deeply woven into everyday financial activity in ways that may be hard to reverse.
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