Close this search box.

Table of Contents

ISO Currency Code


An ISO currency code is a three-letter code that represents a particular country’s currency, established by the International Organization for Standardization (ISO). These codes are used in banking, finance, and commerce globally for reliable, standardized identification of currencies. The first two letters represent the country, while the third one typically symbolizes the name of the currency.


The phonetics of the keyword ‘ISO Currency Code’ would be: ‘eye-soe curr-en-see kohd’

Key Takeaways

  1. Standardization: ISO Currency Code is a three-letter code that is established by the International Standards Organization (ISO) to denote different currencies worldwide. It standardizes the representation of currencies across the world.
  2. Global Acceptance: ISO Currency Codes are widely recognized and used globally. They are used in banking, financial systems, and international transactions because of their universal acceptance and understanding. They eliminate confusion caused by different language standards and currency symbols.
  3. Code Structure: The structure of the ISO Currency Code is derived from the ISO 3166-1 country codes. The first two letters denote the country and the third letter is the initial of the currency used in that country. For example, the ISO currency code for the United States dollar is USD, where ‘US’ stands for the United States and ‘D’ stands for Dollar.


ISO currency codes, typically known as ISO 4217 codes, are essential in the world of business and finance because they standardize and streamline international financial transactions and foreign exchange operations. These three-letter codes are used worldwide to distinctly represent each currency, thereby preventing confusion and misinterpretation. This becomes especially significant in a global economy where businesses across nations need to engage in financial transactions without ambiguity about the currency being referred to. These codes remove potential discrepancies that can arise from different national conventions for writing currency names, and mitigate risks associated with international trade and finance. For example, the ISO code for United States Dollar is USD, for Euro it is EUR, for Japanese Yen it is JPY, and so on.


ISO Currency Code is a vital part of the international financial landscape. Its purpose is to standardize currency identifiers across the globe, thereby simplifying and harmonizing global trade, financial reporting and investment. These codes, which are established by the International Organization of Standardization (ISO), consist of three letters. The first two represent the country and the third one denotes the currency being used in that country. For instance, USD is the ISO Currency Code for the United States Dollar, where ‘US’ stands for the United States and ‘D’ for Dollar.The ISO Currency Code is vital for businesses and financial institutions engaging in international trade because it prevents confusion over currency names and symbols, which can vary significantly between different languages and countries. For instance, the dollar is the currency name for the US, Australia, Canada and other countries, but each has a different value. The ISO Currency Code, however, clearly distinguishes between these currencies (USD, AUD, CAD), thereby facilitating accurate, efficient business transactions. Similarly, in capital markets, the codes ensure the correct tracking of international investments, stocks, bonds and derivatives. In essence, the ISO Currency Code provides a shared monetary language for business and finance across the globe.


ISO Currency Code is a three-letter standard code that represents a country’s currency. This code is defined by the International Organization for Standardization (ISO). Here are three real-world examples:1. USD – This is the ISO Currency Code for the United States Dollar. This code is used in global financial transactions and is recognized internationally in the finance market.2. GBP – This is the ISO Currency Code for the Great British Pound, the official currency of the United Kingdom. The code is used in banking and business globally whenever a transaction involves the GBP.3. JPY – This represents the Japanese Yen, which is the official currency of Japan. The JPY is utilized in worldwide commerce and is particularly common in forex trading.

Frequently Asked Questions(FAQ)

What is an ISO Currency Code?

An ISO Currency Code is a three-letter code that represents a specific currency used in different countries, as established by the International Organization for Standardization (ISO).

How is the ISO Currency Code structured?

The ISO Currency Code is structured with the first two letters representing the country and the last letter representing the currency name. For instance, USD is the ISO Currency Code, where ‘US’ refers to the United States, and ‘D’ refers to Dollar.

Where are ISO Currency Codes used?

ISO Currency Codes are used in banking and business worldwide for defining different currencies. They are also commonly used in software systems that require the definition, exchange, or processing of different currencies.

Are all current currencies represented by an ISO Currency Code?

Most commonly used currencies around the globe have an ISO Currency Code. However, certain rare or less common currencies may not have an ISO code.

Can an ISO Currency Code change or be altered?

Usually, the ISO Currency Code remains the same and cannot be altered once established. However, if there are significant changes in a country’s monetary system, such as a change in the country’s primary currency, the ISO Currency Code may change.

Can one country have more than one ISO Currency Code?

Yes. There are instances where one country has more than one ISO Currency Code, usually due to various territories under the country’s jurisdiction using different currencies.

How frequently is the list of ISO Currency Codes updated?

The list of ISO Currency Codes is updated whenever there are significant changes in the global currency scenario – for example, when a new currency is introduced, or an existing one is discontinued.

Where can I find a comprehensive list of ISO Currency Codes?

A comprehensive list of current ISO Currency Codes is maintained by the ISO and can typically be accessed from their official website or from other financial literature and resources.

Related Finance Terms

Sources for More Information

About Our Editorial Process

At Due, we are dedicated to providing simple money and retirement advice that can make a big impact in your life. Our team closely follows market shifts and deeply understands how to build REAL wealth. All of our articles undergo thorough editing and review by financial experts, ensuring you get reliable and credible money advice.

We partner with leading publications, such as Nasdaq, The Globe and Mail, Entrepreneur, and more, to provide insights on retirement, current markets, and more.

We also host a financial glossary of over 7000 money/investing terms to help you learn more about how to take control of your finances.

View our editorial process

About Our Journalists

Our journalists are not just trusted, certified financial advisers. They are experienced and leading influencers in the financial realm, trusted by millions to provide advice about money. We handpick the best of the best, so you get advice from real experts. Our goal is to educate and inform, NOT to be a ‘stock-picker’ or ‘market-caller.’ 

Why listen to what we have to say?

While Due does not know how to predict the market in the short-term, our team of experts DOES know how you can make smart financial decisions to plan for retirement in the long-term.

View our expert review board

About Due

Due makes it easier to retire on your terms. We give you a realistic view on exactly where you’re at financially so when you retire you know how much money you’ll get each month. Get started today.

Due Fact-Checking Standards and Processes

To ensure we’re putting out the highest content standards, we sought out the help of certified financial experts and accredited individuals to verify our advice. We also rely on them for the most up to date information and data to make sure our in-depth research has the facts right, for today… Not yesterday. Our financial expert review board allows our readers to not only trust the information they are reading but to act on it as well. Most of our authors are CFP (Certified Financial Planners) or CRPC (Chartered Retirement Planning Counselor) certified and all have college degrees. Learn more about annuities, retirement advice and take the correct steps towards financial freedom and knowing exactly where you stand today. Learn everything about our top-notch financial expert reviews below… Learn More