When retail bank customers use $100 to purchase newly issued stablecoins, total dollar deposits inside the banking system may not disappear, but converting sticky retail balances into demanding wholesale reserves increases funding costs and can make bank loans more expensive. Research from the Federal Reserve and a 2026 analysis from the Bank for International Settlements (BIS) demonstrate that this ownership shift alters the dependability of bank liabilities even when total deposits remain stable.
The Shift From Retail to Wholesale Funding
When a customer transfers $100 from a checking account to purchase stablecoins, the issuing firm deposits those funds back into its own banking provider. While the $100 remains within the banking system, the nature of the creditor changes completely. Banks rely on predictable retail funding from individual accounts whose holders rarely withdraw all funds at once. In contrast, stablecoin issuers hold large institutional balances classified as wholesale funding, which can be withdrawn rapidly to satisfy token redemptions.
This structural transition directly impacts bank regulatory metrics. Under the Basel banking framework, institutions must maintain a Liquidity Coverage Ratio (LCR) comparing qualifying liquid assets to estimated 30-day net cash outflows during stress. For example, a bank holding $120 million in qualifying liquid assets against $100 million in expected outflows maintains an LCR of 120%. If customer balances shift toward volatile institutional accounts, expected outflows can rise to $110 million while assets remain fixed at $120 million, dropping the bank's LCR to 109%. To restore liquidity buffers, banks must acquire higher-cost funding or retain more cash, increasing operational expenses.
Treasury Reserves and System Dynamics
Stablecoin issuers do not keep all reserves in traditional commercial bank accounts; they frequently purchase short-term Treasury bills to earn yield while backing their tokens. When an issuer buys existing Treasuries from a non-bank investor, the seller receives the bank deposit, keeping overall liquidity in the system. As seen in market trends where stablecoin issuers replace 40% of China's lost demand for US Treasuries, these reserve allocations alter deposit pathways rather than eliminating cash.
However, if an issuer buys government debt directly from a commercial bank's portfolio, the bank forfeits an asset and extinguishes a deposit liability, shrinking its overall balance sheet and reducing available liquid reserves. Addressing reserve composition, BIS General Manager Pablo Hernández de Cos emphasized that understanding how stablecoins alter deposit ownership is essential for evaluating systemic financial stability.
Why It Matters
This dynamic demonstrates that stablecoins can disrupt traditional banking and credit markets without triggering outright capital flight. By converting low-cost, stable retail deposits into high-velocity wholesale liabilities, stablecoins force commercial banks to pay higher interest rates or hold larger liquid buffers to maintain regulatory compliance. As a result, commercial banks are likely to pass these elevated funding costs onto everyday borrowers through higher loan interest rates, impacting broader economic lending even for consumers who do not use cryptocurrency.
