You must express the amounts you report on your U.S. tax return in U.S. dollars. Therefore, you must translate foreign currency into U.S. dollars if you receive income or pay expenses in a foreign currency. In general, use the exchange rate prevailing (i.e., the spot rate) when you receive, pay or accrue the item.

The only exception relates to some qualified business units (QBUs), which are generally allowed to use the currency of a foreign country. If you have a QBU with a functional currency that is not the U.S. dollar, make all income determinations in the QBU's functional currency, and where appropriate, translate such income or loss at the appropriate exchange rate.




Currency Exchange Rate Table Download