26 U.S.C. § 863
Special rules for determining source
Items of gross income, expenses, losses, and deductions, other than those specified in sections 861(a) and 862(a), shall be allocated or apportioned to sources within or without the United States, under regulations prescribed by the Secretary. Where items of gross income are separately allocated to sources within the United States, there shall be deducted (for the purpose of computing the taxable income therefrom) the expenses, losses, and other deductions properly apportioned or allocated thereto and a ratable part of other expenses, losses, or other deductions which cannot definitely be allocated to some item or class of gross income. The remainder, if any, shall be included in full as taxable income from sources within the United States.
All transportation income attributable to transportation which begins and ends in the United States shall be treated as derived from sources within the United States.
In the case of any United States person, 50 percent of any international communications income shall be sourced in the United States and 50 percent of such income shall be sourced outside the United States.
Except as provided in regulations or clause (ii), in the case of any person other than a United States person, any international communications income shall be sourced outside the United States.
In the case of any person (other than a United States person) who maintains an office or other fixed place of business in the United States, any international communications income attributable to such office or other fixed place of business shall be sourced in the United States.
For purposes of this section, the term “international communications income” includes all income derived from the transmission of communications or data from the United States to any foreign country (or possession of the United States) or from any foreign country (or possession of the United States) to the United States.
2017—Subsec. (b). Pub. L. 115–97 inserted at end of concluding provisions “Gains, profits, and income from the sale or exchange of inventory property described in paragraph (2) shall be allocated and apportioned between sources within and without the United States solely on the basis of the production activities with respect to the property.”
1997—Subsec. (c)(2)(B). Pub. L. 105–34 inserted concluding provisions “In the case of transportation income derived from, or in connection with, a vessel, this subparagraph shall only apply if the taxpayer is a citizen or resident alien.”
1989—Subsec. (b)(2), (3). Pub. L. 101–239 substituted “865(i)(1)” for “865(h)(1)”.
1988—Pub. L. 100–647, § 1012(e)(3)(A), substituted “Special rules for determining source” for “Item not specified in section 861 or 862” in section catchline.
Subsec. (e)(2). Pub. L. 100–647, § 1012(f), substituted “foreign country (or possession of the United States)” for “foreign country” in two places.
1986—Subsec. (b)(1). Pub. L. 99–514, § 1212(e), substituted “services” for “transportation or other services”.
Subsec. (b)(2), (3). Pub. L. 99–514, § 1211(b)(1)(A), substituted “inventory property (within the meaning of section 865(h)(1))” for “personal property”.
Subsec. (c)(2). Pub. L. 99–514, § 1212(a), amended par. (2) generally, in subpar. (A) substituting provisions relating to other transportation having United States connections for provisions relating to transportation between United States and any possession, and in subpar. (B) substituting provisions relating to special rule for personal service income for provisions relating to special rule for certain lessors of aircraft.
Subsecs. (d), (e). Pub. L. 99–514, § 1213(a), added subsecs. (d) and (e).
1984—Subsec. (c). Pub. L. 98–369 added subsec. (c).
1976—Subsec. (a). Pub. L. 94–455, § 1906(b)(13)(A), struck out “or his delegate” after “Secretary”.
Subsec. (b). Pub. L. 94–455, §§ 1901(b)(26)(C), (D), 1906(b)(13)(A), struck out “or his delegate” after “Secretary” in introductory provisions, and inserted “or exchange” after “sale” in pars. (2) and (3), and “or exchanged” after “sold” in par. (2) wherever appearing.
Pub. L. 115–97, title I, § 14303(b),
Amendment by Pub. L. 105–34 applicable to remuneration for services performed in taxable years beginning after
Amendment by Pub. L. 101–239 effective, except as otherwise provided, as if included in the provision of the Technical and Miscellaneous Revenue Act of 1988, Pub. L. 100–647, to which such amendment relates, see section 7817 of Pub. L. 101–239, set out as a note under section 1 of this title.
Amendment by Pub. L. 100–647 effective, except as otherwise provided, as if included in the provision of the Tax Reform Act of 1986, Pub. L. 99–514, to which such amendment relates, see section 1019(a) of Pub. L. 100–647, set out as a note under section 1 of this title.
Amendment by section 1211(b)(1)(A) of Pub. L. 99–514 applicable to taxable years beginning after
Pub. L. 99–514, title XII, § 1212(f), “March 5, 1986 $176,844,000 February 5, 1986 64,567,000 April 22, 1986 64,598,000 May 22, 1986 175,300,000.”
Pub. L. 99–514, title XII, § 1213(b),
Pub. L. 98–369, div. A, title I, § 124(b),
Amendment by section 1901(b)(26)(C), (D) of Pub. L. 94–455 effective for taxable years beginning after
For nonapplication of amendments by sections 1211(b)(1)(A) and 1212(a) of Pub. L. 99–514 to the extent application of such amendments would be contrary to any treaty obligation of the United States in effect on
For allocation and apportionment of qualified research and experimental expenditures for purposes of sections 861 to 863 of this title, see section 4009 of Pub. L. 100–647, set out as a note under section 861 of this title.
For rule governing allocation under subsec. (b) of this section of amounts allowable as a deduction for qualified research and experimental expenditures during taxable years beginning after
For purposes of subsec. (b) of this section, all amounts allowable as a deduction for qualified research and experimental expenditures are to be allocated to income from sources within the United States and deducted from such income in determining the amount of taxable income from sources within the United States for taxable years beginning after