How can I get access to the API?

Submit our contact form and indicate which countries, banks, or tax authorities you are interested in. Our team will provide onboarding details and API access instructions.

Where can I find the API documentation?

The API documentation is available on the Swagger page and includes the always up-to-date OpenAPI specification. You can explore endpoints, test requests, and generate client SDKs. Additional authentication guides and code samples are available in the Developer Portal.

What is the earliest available date for historical exchange rates?

Historical exchange rates are typically available starting from January 1, 2015, or the first business day of that month for most banks. The exact availability range can be verified through the API.

Why is historical data from 2015 sufficient for VAT and GST compliance?

In most jurisdictions, the statute of limitations for VAT and GST ranges from three to six years. Historical exchange rate data starting from 2015 typically exceeds these compliance requirements.

Which exchange rate types are supported?

Depending on the source bank or tax authority, supported frequencies include daily, weekly, biweekly, and monthly rates. Available price types may include midpoint, bid, and ask rates.

What sources are used for exchange rates?

Exchange rates are sourced from official central banks and tax authorities in accordance with national VAT and GST legislation in supported countries.

How often are exchange rates updated?

New exchange rates become available almost instantly after they are officially published by the respective central bank or tax authority.

Which file formats are supported?

Exchange rate data can be accessed in JSON, XML, Excel, and CSV formats via both the API and the web application.

Can I use the service without API integration?

Yes. In addition to the API, a web application is available for browsing and downloading exchange rates manually.

I cannot find a specific bank or country in the list. Will it be added?

Supported countries and banks are continuously expanded. If you require a specific source that is not currently available, you can submit a request through the contact form.

What sets Fluentax API apart from other exchange rate services?

Most providers use market rates that differ from prescribed sources and therefore cannot be used for compliance. Fluentax provides official rates specifically intended for tax compliance. Sources are clearly identified and exposed as separate data feeds. We standardize data using ISO currency codes, dates, standard numerical formats, and mid rates where only bid/ask rates are provided, while keeping the data as close as possible to official publications. This approach allows you to access multiple jurisdictions without building custom integrations.

Exchange Rates API

Official Exchange Rates for Tax & Customs

In most countries the use of exchange rates for foreign currency invoices and indirect tax return calculations is regulated by the national VAT and GST legislations. You must use approved rates, otherwise you risk VAT/GST underpayment and the associated interest and penalties.

For businesses operating in multiple countries, keeping up with these requirements can be challenging. We provide a simple solution that can easily be integrated with your system to comply with the local exchange rate conversion rules in all supported countries.

All the features you need

Here are a few reasons why you should choose Fluentax FX API

Official sources

Exchange rates from 114 central banks and tax authorities in compliance with the national VAT and GST legislations.

Check available sources

Easy integration

You don't have to deal with the different websites, APIs and data formats of the source banks. We provide a unified API access to all exchange rates. All you need is a one-time implementation.

View API Documentation

Global coverage

EU, Europe, GCC, MENA, APAC, LATAM - we have your global requirements covered.

Online app

Not ready for the API automation? Use our web application to access the same functionality – browse and download exchange rates or perform currency conversions online to support your manual processes.

Historical data

Exchange rates available starting from 2015.

Daily updates

Newly published rates become available instantly.

Multiple file formats

JSON, XML, Excel, CSV

Supported banks

Official foreign exchange rates for six continents

Bank	Country	Currency	Frequencies	Details
Central Bank of the UAE	United Arab Emirates	AED	Daily	View
Bank of Albania	Albania	ALL	Daily	View
Central Bank of Armenia	Armenia	AMD	Daily	View
National Bank of Angola	Angola	AOA	Daily	View
Bank of the Argentine Nation	Argentina	ARS	Daily	View
Austrian Ministry of Finance	Austria	EUR	Monthly	View
Reserve Bank of Australia	Australia	AUD	Daily	View
Central Bank of Aruba	Aruba	AWG	Daily	View
Central Bank of the Republic of Azerbaijan	Azerbaijan	AZN	Daily	View
Central Bank of Bosnia and Herzegovina	Bosnia and Herzegovina	BAM	Daily	View
Central Bank of Barbados	Barbados	BBD	Daily	View
Bangladesh Bank	Bangladesh	BDT	Daily	View
Bulgarian National Bank	Bulgaria	BGN	Daily	View
Central Bank of Bahrain	Bahrain	BHD	Daily	View
Central Bank of Bolivia	Bolivia, Plurinational State of	BOB	Daily	View
Central Bank of Brazil	Brazil	BRL	Daily	View
National Bank of the Republic of Belarus	Belarus	BYN	Daily	View
Bank of Canada	Canada	CAD	Daily, Monthly	View
Central Bank of the Congo	Congo, the Democratic Republic of the	CDF	Daily	View
Federal Tax Administration	Switzerland	CHF	Daily, Monthly	View
Central Bank of Chile	Chile	CLP	Daily	View
People's Bank of China	China	CNY	Daily	View
Central Bank of Colombia	Colombia	COP	Daily	View
Financial Superintendence of Colombia	Colombia	COP	Daily	View
Central Bank of Costa Rica	Costa Rica	CRC	Daily	View
Republic of Cyprus, Ministry of Finance	Cyprus	EUR	Monthly	View
Czech National Bank	Czechia	CZK	Daily, Monthly	View
Federal Ministry of Finance	Germany	EUR	Monthly	View
Danmarks Nationalbank	Denmark	DKK	Daily	View
Central Bank of the Dominican Republic	Dominican Republic	DOP	Daily	View
Bank of Algeria	Algeria	DZD	Daily	View
Central Bank of Ecuador	Ecuador	USD	Daily	View
Central Bank of Egypt	Egypt	EGP	Daily	View
National Bank of Ethiopia	Ethiopia	ETB	Daily	View
European Central Bank	Austria, Belgium, Cyprus, …	EUR	Daily, Monthly	View
Bank of England	United Kingdom of Great Britain and Northern Ireland	GBP	Daily, Monthly	View
HM Revenue & Customs	United Kingdom of Great Britain and Northern Ireland	GBP	Monthly	View
National Bank of Georgia	Georgia	GEL	Daily	View
Bank of Ghana	Ghana	GHS	Daily	View
Central Bank of the Republic of Guinea	Guinea	GNF	Daily	View
Independent Authority for Public Revenue	Greece	EUR	Monthly	View
Bank of Guatemala	Guatemala	GTQ	Daily	View
Bank of Guyana	Guyana	GYD	Daily	View
Central Bank of Honduras	Honduras	HNL	Daily	View
Croatian National Bank	Croatia	HRK	Daily, Monthly	View
Central Bank of Hungary	Hungary	HUF	Daily	View
Ministry of Finance of the Republic of Indonesia	Indonesia	IDR	Weekly	View
Bank of Israel	Israel	ILS	Daily	View
Reserve Bank of India	India	INR	Daily	View
Central Bank of Iceland	Iceland	ISK	Daily	View
Bank of Italy	Italy	EUR	Daily	View
Bank of Italy - USD rates	Italy	USD	Daily	View
Central Bank of Jordan	Jordan	JOD	Daily	View
Mitsubishi UFJ Financial Group	Japan	JPY	Daily	View
Central Bank of Kenya	Kenya	KES	Daily	View
National Bank of the Kyrgyz Republic	Kyrgyzstan	KGS	Daily, Weekly	View
National Bank of Cambodia	Cambodia	KHR	Daily	View
Seoul Money Brokerage Services	Korea, Republic of	KRW	Daily	View
Central Bank of Kuwait	Kuwait	KWD	Daily	View
National Bank of Kazakhstan	Kazakhstan	KZT	Daily	View
Bank of the Lao P.D.R.	Lao People's Democratic Republic	LAK	Daily	View
Central Bank of Sri Lanka	Sri Lanka	LKR	Daily	View
Bank Al-Maghrib	Morocco	MAD	Daily	View
National Bank of Moldova	Moldova, Republic of	MDL	Daily	View
National Bank of the Republic of North Macedonia	North Macedonia	MKD	Daily	View
Central Bank of Myanmar	Myanmar	MMK	Daily	View
Bank of Mongolia (Mongolbank)	Mongolia	MNT	Daily	View
Monetary Authority of Macao	Macao	MOP	Daily	View
Central Bank of Mauritania	Mauritania	MRU	Daily	View
Maldives Monetary Authority	Maldives	MVR	Daily	View
Bank of Mexico	Mexico	MXN	Daily, Monthly	View
Central Bank of Malaysia	Malaysia	MYR	Daily	View
Bank of Mozambique	Mozambique	MZN	Daily	View
Central Bank of Nigeria	Nigeria	NGN	Daily	View
Central Bank of Nicaragua	Nicaragua	NIO	Daily	View
Norges Bank	Norway	NOK	Daily	View
Norwegian Customs	Norway	NOK	Weekly	View
Nepal Rastra Bank	Nepal	NPR	Daily	View
Reserve Bank of New Zealand	New Zealand	NZD	Daily	View
Central Bank of Oman	Oman	OMR	Daily	View
Superintendency of Banking, Insurance and Pension Fund Administrators	Peru	PEN	Daily	View
Central Bank of the Philippines	Philippines	PHP	Daily	View
National Bank of Poland	Poland	PLN	Daily	View
National Directorate of Tax Revenues	Paraguay	PYG	Daily	View
Qatar Central Bank	Qatar	QAR	Daily	View
National Bank of Romania	Romania	RON	Daily	View
National Bank of Serbia	Serbia	RSD	Daily	View
Central Bank of Russia	Russian Federation	RUB	Daily	View
Saudi Central Bank	Saudi Arabia	SAR	Daily	View
Central Bank of Seychelles	Seychelles	SCR	Daily	View
Sveriges Riksbank	Sweden	SEK	Daily	View
Monetary Authority of Singapore	Singapore	SGD	Daily	View
Central Bank of Suriname	Suriname	SRD	Daily	View
Bank of Thailand	Thailand	THB	Daily	View
Bank of Thailand - Average Buying Rate: Sight Bill	Thailand	THB	Daily	View
Bank of Thailand - Average Buying Rate: Transfer	Thailand	THB	Daily	View
National Bank of Tajikistan	Tajikistan	TJS	Daily	View
Central Bank of Tunisia	Tunisia	TND	Daily	View
Central Bank of the Republic of Turkey	Turkey	TRY	Daily	View
Bank Of Taiwan	Taiwan, Province of China	TWD	Daily	View
Bank of Tanzania	Tanzania, United Republic of	TZS	Daily	View
National Bank of Ukraine	Ukraine	UAH	Daily	View
Uganda Revenue Authority	Uganda	UGX	Daily	View
United Nations Treasury	United States, American Samoa, Guam, …	USD	Biweekly	View
United States Federal Reserve	United States, American Samoa, Guam, …	USD	Daily	View
Central Bank of Uruguay	Uruguay	UYU	Daily	View
Central Bank of the Republic of Uzbekistan	Uzbekistan	UZS	Daily	View
Central Bank of Venezuela	Venezuela, Bolivarian Republic of	VES	Daily	View
State Bank of Vietnam	Viet Nam	VND	Daily, Weekly	View
Bank of Central African States	Cameroon, Central African Republic, Chad, …	XAF	Daily	View
Eastern Caribbean Central Bank	Anguilla, Antigua and Barbuda, Dominica, …	XCD	Daily	View
Central Bank of West African States	Benin, Burkina Faso, Côte d'Ivoire, …	XOF	Daily	View
South African Reserve Bank	South Africa	ZAR	Daily	View
Bank of Zambia	Zambia	ZMW	Daily	View