Fiat currency

What is a fiat currency?

Fiat money is government-issued currency designated as legal tender, though it isn’t backed by a physical commodity like gold or silver. The term traces to the Latin fiat, translating as “let it be done” or “it shall be.” Its value doesn’t come from inherent worth; instead, it rests on government decree and the public’s confidence in the issuing authority’s economic stability.

Fiat in the crypto world

Within cryptocurrency ecosystems, fiat plays distinct roles. It acts as the main bridge for moving into and out of the crypto market — the cash used to purchase digital assets on exchanges and the currency traders receive when they cash out. 

Stablecoins offer another link: these cryptocurrencies are engineered to track the value of a fiat currency, such as the U.S. dollar, delivering price stability across decentralized networks. Central Bank Digital Currencies (CBDCs) represent a further evolution; governments are building them as digital counterparts to national fiat money, issued directly by central banks. 

Structurally, fiat stands apart from decentralized cryptocurrencies — while the latter run on code and blockchain protocols, fiat remains centralized, with central banks and government policy dictating its supply and oversight.

Is fiat literally paper money?

The cash and coins in your wallet are forms of fiat money, but fiat money is not limited to physical currency. It generally exists as physical cash and electronic money, such as bank deposits.

Physical fiat consists of the banknotes and coins used for transactions. Most money in modern economies, however, exists electronically as balances in bank accounts and other payment systems.

Modern fiat money is not backed by a fixed quantity of gold or another physical commodity. Its value instead depends on factors such as government authority, monetary policy, legal-tender status, and public confidence. Unlike commodity-backed currencies, modern fiat currencies are generally not redeemable for a fixed amount of gold or another commodity.