If your functional currency is not the U.S. You can generally get exchange rates from banks and U.S. If there is more than one exchange rate, use the one that most properly reflects your income. Use the exchange rate prevailing when you receive, pay, or accrue the item. (including taxes), that you receive, pay, or accrue in a foreign currency and that will affect computation of your income tax. dollar, you must immediately translate into dollars all items of income, expense, etc. Make all income tax determinations in your functional currency. The business books and records are not kept in the currency of the economic environment in which a significant part of the business activities is conducted.
