Versions of s. 261(9)(e)

in determining any amount (expressed in Canadian currency) that has been deducted or claimed as a reserve in computing the income of the taxpayer for its last functional currency year preceding the particular Canadian currency year, that amount (determined in the taxpayer’s functional currency for the last functional currency year) deducted or claimed as a reserve for that last functional currency year is to be converted to Canadian currency using the reversionary exchange rate of the taxpayer for that last functional currency year;