Stablecoin Regulation Hits a Snag in Latin America's Dollar Conundrum

Latin America's financial landscape is being shaped by the growing use of stablecoins, which are dollar-pegged tokens that offer an alternative to traditional currencies. The region's regulators are grappling with how to oversee these instruments, which have become increasingly popular among savers and businesses.

In Argentina, Brazil, and Mexico, stablecoin usage has skyrocketed, with USDT and USDC dominating the market. However, this trend raises questions about the location of the dollars backing these tokens. While a dollar in a reserve account in New York may seem equivalent to one in Buenos Aires or Sao Paulo, regulators are concerned that offshore reserves could exacerbate dollar scarcity and limit access to hard currency.

Argentina's experience is particularly noteworthy, as it remains the world's most dollarized crypto market by share of volume. Institutional stablecoin usage jumped from 5% of local crypto flows in 2024 to 84% in 2025. Meanwhile, Mexico's Senate is debating a bill to regulate peso-pegged stablecoins.

One proposal gaining traction is the idea of requiring stablecoin issuers to hold at least 30% of customer funds in banks domiciled in the country. While this approach has its merits, experts warn that it could fragment liquidity and push demand toward unregulated rails instead of compliant ones. The alternative being explored is coexistence: locally-reserved and offshore-reserved dollar instruments operating under supervision, allowing users to decide where their dollars live.