A new research paper from the Bank of Italy challenges the widely held belief that stablecoins universally reduce the cost of cross-border remittances. By executing 200 real transfers of $200 each in USDC across ten corridors linking Italy with Argentina, Brazil, South Africa, the UAE, and Japan, the researchers found that total fees ranged from 0.30% to nearly 9%, with on‑chain costs representing only about 0.4% of the total. The bulk of the expense arose at the fiat on‑ and off‑ramps: funding crypto accounts with cards or wires incurred 1–3% charges, while converting USDC into thin local currencies opened wide bid‑ask spreads. Brazil’s Pix instant‑payment system kept off‑ramp costs low, whereas Argentina’s 0.30% figure was the result of an artificial currency gap, not blockchain efficiency—sending money in the opposite direction cost 8.96%. The study concludes that stablecoin savings are substantial only when recipients keep funds on‑chain, a closed‑loop vision that central banks increasingly view as a threat to monetary sovereignty.
The findings coincide with tightening regulatory oversight in Brazil, where the Central Bank has issued a series of resolutions (561, 519, 520, 521) designed to push cross‑border stablecoin settlement back into the traditional banking system. Non‑bank virtual‑asset service providers are now capped at $100,000 per transaction, while banks face no such limit. Additionally, the use of investment funds as disguised FX intermediaries for crypto imports has been declared illegal. These moves have caused stablecoin spreads to widen sharply, reflecting a deliberate strategy to channel flows through regulated banks rather than ban stablecoins outright. “Regulators don’t want to stop these flows, but rather they want to see them in action as they build identity and compliance into the rails themselves,” noted Ryan Kirkley, co‑founder and CEO of Global Settlement Network.
Against this backdrop, the Bank for International Settlements’ Project Agorá has completed real‑value testing of a multi‑currency ledger that tokenizes central‑bank reserves and commercial‑bank deposits, settling 30 transactions in six currencies in about 80 seconds. This public‑private alternative stands in contrast to public stablecoin rails and may shape the future of regulated cross‑border payments. With the stablecoin market near $307 billion, the pressure to reconcile cost, compliance, and sovereign interests is only building.
