§ 4271. Imposition of tax
(a)
In general
There is hereby imposed upon the amount paid within or without the United States for the taxable transportation (as defined in section
4272) of property a tax equal to 6.25 percent of the amount so paid for such transportation. The tax imposed by this subsection shall apply only to amounts paid to a person engaged in the business of transporting property by air for hire.
(b)
By whom paid
(1)
In general
Except as provided by paragraph (2), the tax imposed by subsection (a) shall be paid by the person making the payment subject to tax.
(2)
Payments made outside the United States
If a payment subject to tax under subsection (a) is made outside the United States and the person making such payment does not pay such tax, such tax—
(c)
Determination of amounts paid in certain cases
For purposes of this section, in any case in which a person engaged in the business of transporting property by air for hire and one or more other persons not so engaged jointly provide services which include taxable transportation of property, and the person so engaged receives, for the furnishing of such taxable transportation, a portion of the receipts from the joint providing of such services, the amount paid for the taxable transportation shall be treated as being the sum of
(2)
any expenses incurred by any of the persons not so engaged which are properly attributable to such taxable transportation and which are taken into account in determining the portion of the receipts so received.
(d)
Application of tax