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The Bank for International Settlements has put a number on how long state-issued money tends to survive. The answer is a median of 33 years.
That figure is now circulating on social media as evidence that crypto challenges government currencies. The BIS research itself, however, does not mention Bitcoin.
The data comes from BIS Working Paper 1392, released on November 6, 2026. It tracks the lifespans of 568 currencies from 1850 to 2026.
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The paper also found that approximately 70% of the currencies in its database have been discontinued. The usual cause was economic, according to the research.
Online commentary has paired the 33-year statistic with Bitcoin’s design. The argument runs that a fixed-supply digital asset may present a challenge to fiat money with a shorter track record.
That framing belongs to outside commentators, not the BIS. The working paper does not analyze digital assets at all.
To understand where the BIS stands on Bitcoin, look at a paper it published a few weeks earlier. BIS Paper 175, written by Iñaki Aldasoro and released on October 14, 2026, is titled “Money and the architecture of trust.”
The paper examines Bitcoin alongside gold and stablecoins. Its verdict on Bitcoin is blunt.
Bitcoin “rejects the social compact that money embodies,” the paper states.
Aldasoro argues that money needs certain features to work at scale. Those include a central-bank anchor and credit elasticity, meaning the ability of the money supply to expand and contract with lending demand.
Bitcoin, by the paper’s account, has neither the anchor nor the shock absorber. Its fixed issuance schedule is the very feature supporters prize, and it is what the BIS sees as a limit.
So the institution is not crowning Bitcoin as fiat’s successor. If anything, it places Bitcoin outside the core architecture that, in its view, makes money trustworthy.
Interestingly, Bitcoin is not the BIS’s main target in recent publications. The institution has spent more of its 2026 commentary on stablecoins.
BIS reports have argued that stablecoins fail key tests for what counts as money. They have compared the tokens to exchange-traded funds rather than true monetary instruments.
The research summary describes the BIS as using Bitcoin mostly as a reference point. It shows up in discussions about trust and monetary design, not as a systemic threat or a credible replacement for fiat.
The BIS is often described as the central bank for central banks. Its research shapes how monetary authorities around the world think about money, payments, and new technology.
The two 2026 papers sit side by side in an awkward way. One documents how often government money fails, while the other argues that Bitcoin lacks what money needs to scale.
For Bitcoin holders, the 33-year statistic is a ready-made talking point. It supports the long-running argument that fiat systems are less permanent than they appear.
The catch is that the source institution does not share that conclusion. Investors who cite the BIS data as an endorsement of Bitcoin are borrowing a statistic while ignoring the author’s broader stance.
For policymakers, the October paper is the more consequential document. Its emphasis on central-bank anchors and credit elasticity frames the debate over what digital money should look like.
That framing helps explain why the BIS has focused its fire on stablecoins. Those tokens increasingly claim to function as money, which puts them squarely in the territory the BIS wants to define.
For Bitcoin, the practical takeaway for readers is narrower. The BIS has handed both sides of the debate useful material: a striking statistic on fiat fragility for the bulls, and a clear institutional rejection of Bitcoin as money for the skeptics.
