The primary demand driver for fiat currency. In the orthodox telling, taxation is how the state collects revenue it then spends. MMT reverses the sequence: for a government issuing its own free-floating, non-convertible currency, the state spends first and taxes afterward. Taxation removes currency from circulation; it does not supply the state with funds it lacked.

The orthodox story, “taxes fund government,” persisted for two and a half centuries because it performed coordination work that had nothing to do with its accuracy. It manufactured demand for the currency by making the tax obligation payable only in the state’s unit of account. It framed every public expenditure as a draw on a finite pot, installing scarcity as the binding constraint. It converted the coercion of the tax obligation into felt civic duty, lowering the cost of compliance at scale. And it constrained deficit spending in ways that protected capital accumulation from political redistribution.

Societies run on stories they collectively tell themselves, and the “taxes fund government” story was one of the load-bearing stories of the industrial growth phase. Like a belief in Santa Claus, it worked because enough people held it, and its usefulness was separable from its truth. The Chartalist tradition (Knapp, Mitchell-Innes, Lerner, Minsky) decoded the story’s operational falsity from the early twentieth century, but the acceleration phase selected against the correction because the false story did the coordination work the phase required.

The mechanism underneath the story is the tax obligation itself: a substrate-level demand driver that forces participation in the monetary system whether or not any participant understands or endorses that system. Warren Mosler’s business-card parable states the mechanism at its most compressed: no one wants his worthless cards until a man with a gun stands at the door and demands one for exit. “That man is the tax man.” The obligation creates unemployment in Mosler’s and Wray’s technical sense: a population that must acquire the state’s currency to discharge the obligation, and therefore must seek paid work denominated in it. This is the mechanism through which the state commands real resources.

The distinction between the story and the mechanism is load-bearing for the Substrate Hypothesis. Correcting the story (as Kelton’s The Deficit Myth did for millions of readers) does not change the substrate’s incentive structure, because the tax obligation continues to force currency demand regardless of the corrected model. The story was the legitimating overlay; the obligation is the substrate component. Experimental evidence supports this separation: Barnes and Hicks (2022) find no causal link from the household-budget analogy to austerity preferences, only ex post recruitment of the analogy to justify preferences formed elsewhere.

For the BioConomy, taxation is the benchmark any alternative demand driver must match. A bioregional currency, a system of commitment pools, or a Regenerative Participation Income requires some obligation denominated in its own unit that forces primary demand for that unit. Demurrage solves circulation (penalizing holding, it accelerates spending) but does not solve demand (it does not force anyone to acquire the unit in the first place). What plays the role the tax obligation plays is the open structural question.

Sources

  • Knapp, G.F. (1905). The State Theory of Money (Eng. trans. 1924).
  • Mosler, W. (1993). Soft Currency Economics.
  • Wray, L.R. (1998). Understanding Modern Money; (2015). Modern Money Theory: A Primer, 2nd ed.
  • Kelton, S. (2020). The Deficit Myth.
  • Barnes, L. and Hicks, T. (2022). “Are Policy Analogies Persuasive?” British Journal of Political Science 52(3).