Fiat currency: the everyday money behind every transfer

If the term “fiat currency” comes up while researching how to send money internationally, especially in comparison to cryptocurrency, it can sound more complicated than it actually is. Here’s what it means in plain terms.

What is fiat currency?

Fiat currency is government-issued money, such as the U.S. dollar, the euro, or the Mexican peso, that has value because a government has declared it legal tender, rather than being backed by a physical commodity like gold. The Federal Reserve confirms⁠(opens in new window) that U.S. currency hasn’t been redeemable for gold since 1934 or silver since the 1960s. Nearly every international money transfer sent or received moves fiat currency from one country’s system into another’s.

How fiat currency works

A fiat currency’s value comes from the trust placed in the issuing government and central bank, along with the broader economy’s stability, rather than any physical asset held in reserve. Central banks manage the supply of their fiat currency and set policies, such as interest rates, that influence its value relative to other currencies over time. This is part of why exchange rates between two fiat currencies constantly shift, reflecting each currency’s relative economic conditions rather than a fixed, unchanging ratio.

Fiat currency for immigrants and newcomers

Understanding the term “fiat currency” matters less for its own sake and more because it clarifies what’s actually being dealt with every time money is sent or received internationally: ordinary, government-backed money, not a form of cryptocurrency or a speculative asset. As a detailed look at fiat currency’s benefits and risks⁠(opens in new window) explains, this distinction is worth understanding clearly given any marketing or conversation suggesting cryptocurrency might be a faster or cheaper way to send money home, since fiat currency transfers through a regulated provider come with consumer protections, oversight, and a level of predictability that a less regulated alternative may not offer in the same way.

For newcomers still getting oriented in a new country’s financial system, it’s reassuring to know that “fiat currency” isn’t a special or unusual category. It’s simply the standard term for the kind of money already being used every day, in a bank account, a paycheck, and every transfer sent.

Community context

How familiar this term feels often depends less on immigration status and more on where someone grew up banking, and whether that country’s currency has a long history of stability or a more turbulent one. Someone from a country that has experienced significant currency instability may already have a very concrete, lived sense of what happens when trust in a fiat currency weakens, while someone from a historically stable economy may be encountering the underlying mechanics for the first time only through this kind of explanation.

How fiat currency moves in an international transfer

1. Fiat currency funds the transfer, typically from a bank account, debit card, or another standard payment method, in the sender’s local currency.

2. The provider converts that fiat currency into the recipient’s fiat currency, applying an exchange rate⁠(opens in new window) that reflects current market conditions between the two currencies.

3. The converted fiat currency is delivered through the recipient’s chosen method, whether a bank deposit, cash pickup, or mobile wallet.

4. The recipient receives ordinary, spendable fiat currency, usable the same way as money earned or received through any other standard means in their country.

Fiat currency compared to other forms of money

Throughout history, money has taken different forms, and understanding where fiat currency fits helps clarify what makes it distinct. Commodity money, like gold or silver coins, derived its value from the material itself, meaning the coin was worth roughly what the metal it contained was worth. Representative money, such as early paper certificates that could be exchanged for a fixed amount of gold, derived its value from a promise to redeem it for a commodity held elsewhere. Fiat currency breaks from both of these models entirely: it isn’t backed by any physical commodity and isn’t redeemable for one, and its value rests purely on legal decree and the collective trust that others will accept it in exchange for goods, services, and other currencies.

This shift happened gradually across the twentieth century, with most major economies, including the United States, fully moving away from any commodity backing by the 1970s. The practical result is that a central bank has considerably more flexibility to manage the money supply and respond to economic conditions than it would under a commodity-backed system, though this flexibility also means a fiat currency’s value depends more heavily on confidence in the issuing government’s economic management.

Why fiat currency still requires trust, and what protects that trust

Because fiat currency isn’t backed by gold or another commodity, its entire value rests on trust: trust that a government will maintain reasonably stable economic policy, trust that a central bank won’t print money recklessly, and trust that other people and institutions will keep accepting the currency in exchange for real goods and services. Most of the currencies used in everyday international transfers, the U.S. dollar, the euro, the British pound, and many others, benefit from decades of this kind of institutional trust, which is part of why they remain stable and widely accepted despite not being backed by anything physical.

This is also why extreme instability in a country’s fiat currency, sometimes called hyperinflation, is so disruptive: it reflects a breakdown in that underlying trust, often tied to a government printing money far faster than the economy is growing. For someone sending money to a country experiencing this kind of instability, understanding that the issue lies with a specific currency’s management, not with the broader concept of fiat currency itself, helps put the situation in clearer context.

How central banks influence fiat currency value

A central bank has several tools to influence its fiat currency’s value and stability, and understanding these broadly helps make sense of financial news that might otherwise seem abstract. Adjusting interest rates is one of the more direct tools, since a higher interest rate tends to attract foreign investment seeking a better return, which can strengthen a currency’s value relative to others, while a lower rate can have the opposite effect. Controlling the money supply, how much currency is created and circulated, also affects value, since increasing the supply too quickly relative to economic growth tends to weaken a currency’s value through inflation.

Fiat currency and inflation’s effect on your transfers

Because fiat currency isn’t tied to a fixed physical standard, its purchasing power can erode over time through inflation, meaning the same nominal amount buys somewhat less each year in most economies. This matters for anyone sending regular support to family abroad, since a fixed transfer amount that comfortably covered specific expenses a few years ago may cover meaningfully less today if the recipient’s local currency has experienced significant inflation in the interim. Periodically reassessing whether a regular transfer amount still matches a recipient’s actual needs, rather than assuming a fixed amount remains adequate indefinitely, helps support keep pace with real-world costs on the receiving end.

In Summary

Fiat currency is simply the everyday, government-backed money already in use, and every standard international transfer moves this kind of currency from one country’s system into another’s. Understanding this helps put alternative options like cryptocurrency into clearer context when deciding how to send money home.

This publication is provided for general information purposes only and is not intended to cover all aspects of the topics discussed herein. This publication is not a substitute for seeking advice from an applicable specialist or professional. The content in this publication does not constitute legal, tax, or other professional advice from Remitly or any of its affiliates and should not be relied upon as such. While we strive to keep our posts up to date and accurate, we cannot represent, warrant, or otherwise guarantee that the content is accurate, complete, or up to date.