A Federal Reserve Bank of Dallas analysis published Aug. 25 warns that AI-directed bank accounts could let depositors shift money between banks almost instantly, eroding the stable funding that supports long-term lending. The report estimates that about $5.84 trillion of banks' interest-rate exposure is backed by the duration of their deposits, and that faster, more price-sensitive deposits would shrink that cushion.
How deposit duration works
The Dallas Fed approximates the effective duration of deposits as weighted average life multiplied by one minus deposit beta. Deposit beta measures how quickly deposit rates respond to short-term interest rates. When deposits are sticky — meaning rates don't move much — they behave like long-term funding, giving banks room to lend out over years.
Instant settlement would change that. Yield-sensitive customers could switch banks in seconds, and programmable rules or agentic AI could automate the move without any human action. That would make deposits shorter-lived and more responsive to rate changes, weakening the funding advantage banks have relied on.
The scale of the risk
Using commercial-bank balance sheets as of July 15, the Dallas Fed estimated about $7 trillion of asset-side interest-rate exposure in 10-year equivalents. Of that, roughly $5.84 trillion was supported by the duration characteristics of deposits other than large time deposits.
The sensitivity cases are stark. A 10% increase in deposit price sensitivity, assuming a four-year weighted average life, would reduce aggregate duration-risk appetite by about $700 billion in 10-year equivalents. A separate 10% reduction in weighted average life would cut modeled maturity-transformation capacity by about $580 billion.
What banks could do
Banks could issue more term debt to keep their lending composition closer to unchanged. But the Dallas Fed said wholesale funding would likely raise borrowing costs for consumers and businesses. Alternatively, banks could hold more reserves and Treasuries against faster, less predictable outflows — leaving less room for illiquid credit.
The pattern isn't hypothetical. A 2025 Central Bank of Brazil paper found that heavier use of the Pix instant-payment system increased liquid-asset holdings and reduced liquidity transformation. That suggests real-world instant payments push banks toward safer, shorter assets.
The tokenized money push
Tokenized deposits are still early, but the infrastructure is moving. In June 2026, The Clearing House announced an initiative to develop 24/7, interoperable tokenized commercial-bank money, including automated and agentic-commerce uses. That would make instant, programmable deposit movement technically feasible.
The Dallas Fed authors stress that the magnitude of any shift is uncertain and that their views should not be attributed to the Dallas Fed or the Federal Reserve System. As tokenized deposits develop, banks will have to weigh the trade-off between stable funding and the convenience of instant, programmable money.
