(b)
Appropriate exchange rate
Except as provided in regulations, for purposes of this subpart, the term “appropriate exchange rate” means—
(1)
in the case of an actual distribution of earnings and profits, the spot rate on the date such distribution is included in income,
(2)
in the case of an actual or deemed sale or exchange of stock in a foreign corporation treated as a dividend under section
1248, the spot rate on the date the deemed dividend is included in income,
(3)
in the case of any amounts included in income under section
951
(a)(1)(A) or
1293
(a), the average exchange rate for the taxable year of the foreign corporation, or
(4)
in the case of any other qualified business unit of a taxpayer, the average exchange rate for the taxable year of such qualified business unit.
For purposes of the preceding sentence, any amount included in income under section
951
(a)(1)(B) shall be treated as an actual distribution made on the last day of the taxable year for which such amount was so included.