The Bank for International Settlements (BIS), often called the central bank for the world's central banks, has issued a stark warning in its 2026 Annual Economic Report: the rapid expansion of stablecoins could begin draining deposits from commercial banks, making bank funding more expensive and reducing the capacity to extend credit. As digital assets increasingly integrate into global finance, this shift poses fresh risks to financial stability.
Stablecoins vs. Bank Deposits: BIS's Core Concern
The BIS argues that while tokenization could modernize financial markets, privately issued stablecoins, if widely used for payments and savings, could weaken the traditional banking model. The reasoning is straightforward: every dollar converted from a bank deposit into a stablecoin is a dollar no longer on a bank's balance sheet. Banks rely on cheap, stable customer deposits to fund mortgages, corporate loans, and consumer credit. If stablecoins capture a meaningful share of household and corporate cash balances, banks must replace those deposits with more expensive wholesale funding, compressing margins and shrinking credit availability.
The report distinguishes between cryptocurrencies like Bitcoin, seen mainly as speculative assets, and stablecoins, which increasingly perform functions traditionally held by bank deposits: transferring money, settling trades, earning yield via DeFi, and serving as a store of value in inflation-prone countries. According to industry data, the global stablecoin market has surpassed $250 billion in circulation, with issuers like Tether and Circle becoming top holders of short-term U.S. Treasury securities.
Tokenization Gets a Nod, Private Stablecoins Face Heat
The BIS does not reject blockchain technology. It explicitly supports tokenization, saying it can improve settlement efficiency, reduce operational costs, and simplify asset movement. However, it questions whether privately issued stablecoins should become the foundation of the future financial system. Among the concerns: fragmentation among issuers, reliance on reserve management, financial integrity risks from digital wallets, and the potential for widespread stablecoin migration to undermine monetary sovereignty in countries with weaker domestic currencies.
This cautious stance contrasts with growing optimism from financial institutions. Over the past year, major banks, payment firms, and crypto companies have announced stablecoin initiatives, while regulators in the U.S., Europe, and Asia move closer to dedicated legal frameworks. The BIS warning arrives amid this regulatory race.
A Double-Edged Sword: Banks Lose Deposits, Treasuries Gain Buyers
An ironic twist: stablecoin issuers invest customer reserves in short-dated U.S. Treasury bills and other liquid government securities. Thus, stablecoins simultaneously reduce bank deposit bases while becoming increasingly important buyers of government debt. This duality forces policymakers into complex trade-offs. The BIS argues that if stablecoins evolve beyond crypto trading into everyday payments, payroll, remittances, and cross-border commerce, the impact on banks could become severe.
Currently, central banks and regulators are balancing innovation with stability. Stablecoins were originally built for crypto markets but are now creeping into mainstream financial infrastructure. The BIS does not predict an imminent bank replacement, but warns that if stablecoins become widely used payment and savings instruments, they will compete directly for banks' most valuable resource: customer deposits. That shift could reshape how banks fund lending, influence monetary policy transmission, and accelerate the next phase of digital finance.