Fed Researchers Examine Where Stablecoins Fit in the U.S. Money Supply

Payment stablecoins are outside the U.S. monetary aggregates, but Federal Reserve researchers have outlined how they might eventually fit. Their September 4 study raises an accounting problem with consequences for crypto market analysis: some assets backing digital tokens are already counted elsewhere.

Kristen Payne and Mary-Frances Styczynski describe the work as independent research, explicitly outside policy deliberations. It is not an announcement that the Fed has added stablecoins to M1 or M2. Their FEDS Note, published September 4, 2026, says classification would depend on whether the instruments chiefly support payments or serve as stores of value.

The authors identify data quality, reporting arrangements, overlapping claims and geographic coverage as obstacles. They also distinguish payment stablecoins from tokenized deposits: the latter already enter monetary statistics through conventional bank reporting. Moving a deposit onto a blockchain does not, by itself, create an additional component of the money supply.

A larger token market is not automatically more money

The Fed’s H.6 release dated August 25, 2026 reports July seasonally adjusted M2 at $23.218 trillion. Its definition includes M1, small time deposits and retail money market fund balances, with specified retirement-account exclusions. It is a defined statistical measure, not a sum of everything denominated in dollars.

Consider a hypothetical analyst who places a token-supply total beside M2 and adds the two. Before calling the result additional liquidity, the analyst would need to establish what each series includes, which holders it covers and whether the totals overlap. Otherwise, the arithmetic may be precise while the economic interpretation is wrong.

That distinction also matters when comparing American monetary statistics with activity visible on a global blockchain. A dollar unit of account does not identify the holder’s country. Nor does an increase in transferable claims establish that American households have more money available to spend.

The comparison needs an accounting bridge

For readers assessing a claim that stablecoin growth will lift Bitcoin, the useful follow-up is to ask how the proposed mechanism works. Is the claim about exchange buying power, settlement convenience, a shift out of bank deposits or a change in economy-wide spending capacity? Those are different propositions and require different evidence.

A chart of two rising series cannot settle those questions. A stronger analysis identifies the relevant holders, explains the funding flow and checks whether the observation survives adjustments to the measurement period and coverage. It should also say what evidence would contradict its interpretation.

The research leaves the measurement question open. For now, treating token adoption, changes in monetary definitions and new purchasing power as interchangeable would obscure the very distinction the accounting is supposed to reveal.

Sources checked September 11, 2026 (UTC). This article reports staff research and offers analysis; it does not describe an adopted Federal Reserve policy change.