Official Treasury Currency Conversion Rates of December 31, 2010

Every quarter the U.S. Department of Treasury publishes its official currency conversion rates (they are called “Treasury’s Financial Management Service rates). While there are many uses for these rates, the current (March 2011 revision) FBAR instructions require their use, if available, to determine the maximum value of a foreign bank account. In particular, the FBAR instructions state:

In the case of non-United States currency, convert the maximum account value for each account into United States dollars. Convert foreign currency by using the Treasury’s Financial Management Service rate (this rate may be found at www.fms.treas.gov) from the last day of the calendar year. If no Treasury Financial Management Service rate is available, use another verifiable exchange rate and provide the source of that rate. In valuing currency of a country that uses multiple exchange rates, use the rate that would apply if the currency in the account were converted into United States dollars on the last day of the calendar year.

Here is the table of the official Treasury currency conversion rates:

1. Lesotho’s loti is pegged to South African Rand 1:1 basis
2. Macao is also spelled Macau: currency is Macanese pataka
3. Macedonia: due to the conflict over name with Greece, the official name if FYROM – former Yugoslav Republic of Macedonia.