§ 2102. Credits against tax
(b)
Unified credit
(2)
Residents of possessions of the United States
In the case of a decedent who is considered to be a “nonresident not a citizen of the United States” under section
2209, the credit under this subsection shall be the greater of—
(3)
Special rules
(A)
Coordination with treaties
To the extent required under any treaty obligation of the United States, the credit allowed under this subsection shall be equal to the amount which bears the same ratio to the applicable credit amount in effect under section
2010
(c) for the calendar year which includes the date of death as the value of the part of the decedent’s gross estate which at the time of his death is situated in the United States bears to the value of his entire gross estate wherever situated. For purposes of the preceding sentence, property shall not be treated as situated in the United States if such property is exempt from the tax imposed by this subchapter under any treaty obligation of the United States.
(B)
Coordination with gift tax unified credit
If a credit has been allowed under section
2505 with respect to any gift made by the decedent, each dollar amount contained in paragraph (1) or (2) or subparagraph (A) of this paragraph (whichever applies) shall be reduced by the amount so allowed.
(4)
Limitation based on amount of tax
The credit allowed under this subsection shall not exceed the amount of the tax imposed by section
2101.