The 2017 Tax Act added a separate foreign tax credit limitation category, or basket, for income earned in a foreign branch. As a result, certain US groups may be limited in their ability to use foreign income taxes paid or accrued by a foreign branch as a credit against their US federal income tax liability.
This new limitation can present a problem for a taxpayer with losses in some foreign branches and income in other foreign branches. Consider, for example, a US consolidated group that has $1,000 of losses from Foreign Branch X and $1,000 of income in Foreign Branch Y on which it pays $200 of foreign income taxes. The group would have zero income in its foreign branch basket, and therefore the $200 of foreign taxes would not be currently usable as a foreign tax credit. The credits can be carried over to other tax years, but they may never be tax benefited if the above circumstances continue.