Currency exchange rates The Internal Revenue Service has no official exchange rate. Generally, it accepts any posted exchange rate that is used consistently.
When valuing currency of a foreign country that uses multiple exchange rates, use the rate that applies to your specific facts and circumstances. For example, if you have a single transaction such as the sale of a business that occurred on a single day, use the exchange rate for that day. However, if you receive income evenly throughout the tax year, you may translate the foreign currency to U.S. dollars using the yearly average currency exchange rate for the tax year.
Yearly average currency exchange rates The table below includes yearly average exchange rates for prior years. It was revised on November 1, 2011, to reflect the typical cash exchange rates for the listed countries and years. For additional exchange rates, refer to Foreign Currency and Currency Exchange Rates.
To convert from foreign currency to U.S. dollars, divide the foreign currency amount by the applicable yearly average exchange rate in the table below. To convert from U.S. dollars to foreign currency, multiply the U.S. dollar amount by the applicable yearly average exchange rate in the table below.