Code of Federal Regulations · Section
§ 1.666(a)-1 — (a)-1 Amount Allocated
26 C.F.R. § 1.666(a)-1
(a) (1) If a trust other than a foreign trust created by a U.S. person makes an accumulation distribution in any taxable year, the distribution is included in the beneficiary's gross income for that year to the extent of the undistributed net income of the trust for the preceding 5 years. It is therefore necessary to determine the extent to which there is undistributed net income for the preceding 5 years. For this purpose, an accumulation distribution made in any taxable year is allocated to each of the 5 preceding taxable years in turn, beginning with the most recent year, to the extent of the undistributed net income of each of those years. Thus, an accumulation distribution is deemed to have been made from the most recently accumulated income of the trust.
(2) If a foreign trust created by a U.S. person makes an accumulation distribution in any year after December 31, 1962, the distribution is included in the beneficiary's gross income for that year to the extent of the undistributed net income of the trust for the trust's preceding taxable years which began after December 31, 1953, and ended after August 16, 1954. It is therefore necessary to determine the extent to which there is undistributed net income for such preceding taxable years. For this purpose, an accumulation distribution made in any taxable year is first allocated to each of such preceding taxable years in turn, beginning with the most recent year, to the extent of the undistributed net income of each of those years. Thus, an accumulation distribution is deemed to have been made from the most recently accumulated income of the trust.
(3) If a trust that is in part a foreign trust created by a U.S. person and in part a foreign trust created by a person other than a U.S. person makes an accumulation distribution in any year after December 31, 1962, the distribution is deemed made from the undistributed net income of the foreign trust created by a U.S. person in the proportion that the total undistributed net income for all preceding years of the foreign trust created by the U.S. person bears to the total undistributed net income for all years of the entire foreign trust. In addition, such distribution is deemed made from the undistributed net income of the foreign trust created by a person other than a U.S. person in the proportion that the total undistributed net income for all preceding years of the foreign trust created by a person other than a U.S. person bears to the total undistributed net income for all years of the entire foreign trust. Accordingly, an accumulation distribution of such a trust is composed of two portions with one portion relating to the undistributed net income of the foreign trust created by the U.S. person and the other portion relating to the undistributed net income of the foreign trust created by the person other than a U.S. person. For these purposes, each portion of an accumulation distribution made in any taxable year is first allocated to each of such preceding taxable years in turn, beginning with the most recent year, to the extent of the undistributed net income for the applicable foreign trust for each of those years. Thus, each portion of an accumulation distribution is deemed to have been made from the most recently accumulated income of the applicable trust. If the foreign trust created by a U.S. person makes an accumulation distribution in any year after December 31, 1962, the distribution is included in the beneficiary's gross income for that year to the extent of the undistributed net income of the trust for the trust's preceding taxable years which began after December 31, 1953, and ended after August 16, 1954. If the foreign trust created by a person other than a U.S. person makes an accumulation distribution in any taxable year, the distribution is included in the beneficiary's gross income for that year to the extent of the undistributed net income of the trust for the preceding 5 years.
(b) If, before the application of the provisions of subpart D (section 665 and following), part I, subchapter J, chapter 1 of the Code, to an accumulation distribution for the taxable year, there is no undistributed net income for a preceding taxable year, then no portion of the accumulation distribution is deemed distributed on the last day of such preceding taxable year. Thus, if an accumulation distribution is made during the taxable year 1960 and the trust had no undistributed net income for the taxable year 1959, then no portion of the 1960 accumulation distribution is deemed distributed on the last day of 1959. For purposes of subpart D, the term 5 preceding taxable years includes only the 5 taxable years immediately preceding the taxable year in which the accumulation distribution is made and which are subject to part I (section 641 and following) of such subchapter J even though the trust has no undistributed net income during one or more of those years.
(c) Paragraphs (a) and (b) of this section may be illustrated by the following examples:
In 1964, a domestic trust, reporting on the calendar year basis, makes an accumulation distribution of $25,000. In 1963, the trust had $7,000 of undistributed net income; in 1962, none; in 1961, $12,000; in 1960, $4,000; in 1959, $4,000. The accumulation distribution is deemed distributed $7,000 in 1963, none in 1962, $12,000 in 1961, $4,000 in 1960, and $2,000 in 1959.
In 1964, a foreign trust created by a U.S. person, reporting on the calendar year basis, makes an accumulation distribution of $50,000. In 1963, the trust had $12,000 of undistributed net income; in 1962, none; in 1961, $10,000; in 1960, $8,000; in 1959, $5,000; in 1958, $14,000; in 1957, none; in 1956, $3,000; in 1955, $2,000; and in 1954, $1,000. The accumulation distribution is deemed distributed $12,000 in 1963, none in 1962, $10,000 in 1961, $8,000 in 1960, $5,000 in 1959, $14,000 in 1958, none in 1957, $1,000 in 1956.
A trust is created in 1952 under the laws of Country X by the transfer to a trustee in Country X of money and property by both a U.S. person and a person other than a U.S. person. Both the trust and the only beneficiary of the trust (who is a U.S. person) report their taxable income on a calendar year basis. On March 31, 1964, the trust makes an accumulation distribution of $150,000 to the U.S. beneficiary. The distributable net income of both the portion of the trust which is a foreign trust created by a U.S. person and the portion of the trust which is a foreign trust created by a person other than a U.S. person for each year is computed in accordance with the provisions of paragraph (b)(3) of § 1.643(d)-1 and the undistributed net income for each portion of the trust for each year is computed as described in paragraph (b) of § 1.665(a)-1. For the taxable years 1952 through 1963, the portion of the trust which is a foreign trust created by a U.S. person and the portion of the trust which is a foreign trust created by a person other than a U.S. person had the following amounts of undistributed net income:
The accumulation distribution in the amount of $150,000 is deemed to have been distributed in the amount of $100,000 (120,000/180,000 × $150,000) from the portion of the trust which is a foreign trust created by a U.S. person, and in the amount of $50,000 (60,000/180,000 × $150,000) from the portion of the trust which is a foreign trust created by a person other than a U.S. person computed as follows:
Pursuant to paragraph (a)(3) of this section, the accumulation distribution in the amount of $100,000 from the portion of the trust which is a foreign trust created by a U.S. person is included in the beneficiary's gross income for 1964, as this amount represents undistributed net income of the trust for the trust's preceding taxable years which began after December 31, 1953, and ended after August 16, 1954. The accumulation distribution in the amount of $50,000 from the portion of the trust which is a foreign trust created by a person other than a U.S. person is included in the beneficiary's gross income for 1964 to the extent of the undistributed net income of the trust for the preceding 5 years. Accordingly, with respect to the portion of the trust which is a foreign trust created by a person other than a U.S. person only the undistributed net income for the years 1959 through 1963 which totals $39,000 is includible in the beneficiary's gross income for 1964. Thus, of the $150,000 distribution made in 1964, the beneficiary is required to include a total of $139,000 in his gross income for 1964.
Assume the same facts as in example 3 and, in addition, that by December 31, 1964, the undistributed net income for 1964 is determined to be $20,000, and that in accordance with the provisions of paragraph (b)(3) of § 1.643(d)-1 and paragraph (b) of § 1.665(a)-1, $10,000 is allocated to the portion of the trust which is a foreign trust created by a U.S. person and $10,000 is allocated to the portion of the trust which is a foreign trust created by a person other than a U.S. person. On March 31, 1965, the trust makes an accumulation distribution of $25,000 to the U.S. beneficiary. For the taxable years 1952 through 1964, the portion of the trust which is a foreign trust created by a U.S. person and the portion of the trust which is a foreign trust created by a person other than a U.S. person had the following amounts of undistributed net income:
The accumulation distribution is deemed to have been distributed in the amount of $15,000 (30,000/50,000 × $25,000), from the portion of the trust which is a foreign trust created by a U.S. person, and in the amount of $10,000 (20,000/50,000 × $25,000) from the portion of the trust which is a foreign trust created by a person other than a U.S. person computed as follows:
Pursuant to paragraph (a)(3) of this section, only $11,000 of the accumulation distribution in the amount of $15,000 from the portion of the trust which is a foreign trust created by a U.S. person is includible in the beneficiary's gross income for 1965 as the $11,000 amount represents undistributed net income of the trust for the trust's preceding taxable years which began after December 31, 1953, and ended after August 16, 1954. The accumulation distribution in the amount of $10,000 from the portion of the trust which is a foreign trust created by a person other than a U.S. person is included in the beneficiary's gross income for 1965 to the extent of the undistributed net income of the trust for the preceding 5 years. Accordingly, the entire $10,000 (representing the undistributed net income for the year 1964) is includible in the beneficiary's gross income for 1965. Thus, of the $25,000 distribution made in 1965, the beneficiary is required to include a total of $21,000 in his gross income for 1965.
(d) For the purposes of allocating to any preceding taxable year an accumulation distribution of the taxable year, the undistributed net income of such preceding taxable year is computed without regard to the accumulation distribution of the taxable year or of taxable years following the taxable year. However, accumulation distributions of any taxable years intervening between such preceding taxable year and the taxable year are taken into account. Accordingly, if a trust has undistributed net income for the taxable year 1954 and makes an accumulation distribution during the taxable year 1955, the undistributed net income for 1954 is computed without regard to the accumulation distribution for 1955 or any subsequent year. If the trust makes a further accumulation distribution for 1956, the undistributed net income for 1954 is computed without regard to the accumulation distribution for 1956 or subsequent years; but in determining the undistributed net income for 1954 for purposes of the 1956 accumulation distribution the accumulation distribution for 1955 will be taken into account.
Authorizing Statute
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Rules and regulations26 U.S.C. § 7805
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Advanced manufacturing production credit26 U.S.C. § 45X
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Alcohol, etc., used as fuel26 U.S.C. § 40
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Gross income defined26 U.S.C. § 61
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Transfers of excess pension assets to retiree health accounts26 U.S.C. § 420
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Partial exclusion for gain from certain small business stock26 U.S.C. § 1202
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Tax treatment of stripped bonds26 U.S.C. § 1286
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Current taxation of income from qualified electing funds26 U.S.C. § 1293
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Imposition of tax on certain foreign procurement26 U.S.C. § 5000C
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Returns regarding payments of interest26 U.S.C. § 6049
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Signing of returns and other documents26 U.S.C. § 6061
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General requirement of return, statement, or list26 U.S.C. § 6011
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Income from discharge of indebtedness26 U.S.C. § 108
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Indian general welfare benefits26 U.S.C. § 139E
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Bonds must be registered to be tax exempt; other requirements26 U.S.C. § 149
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Trade or business expenses26 U.S.C. § 162
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Accelerated cost recovery system26 U.S.C. § 168
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Amortizable bond premium26 U.S.C. § 171
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Golden parachute payments26 U.S.C. § 280G
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Distributions of stock and stock rights26 U.S.C. § 305
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Transfer to corporation controlled by transferor26 U.S.C. § 351
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Special rules for long-term contracts26 U.S.C. § 460
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Determination of basis of partner’s interest26 U.S.C. § 705
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Taxes of foreign countries and of possessions of United States26 U.S.C. § 901
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Controlled foreign corporations; United States persons26 U.S.C. § 957
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New energy efficient home credit26 U.S.C. § 45L
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2-percent floor on miscellaneous itemized deductions26 U.S.C. § 67
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Certain death benefits26 U.S.C. § 101
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Qualified business income26 U.S.C. § 199A
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Installment method26 U.S.C. § 453
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Certain payments for the use of property or services26 U.S.C. § 467
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Partners, not partnership, subject to tax26 U.S.C. § 701
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Extent of recognition of gain or loss on distribution26 U.S.C. § 731
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Capitalization of certain policy acquisition expenses26 U.S.C. § 848
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Special rules for determining source26 U.S.C. § 863
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Income of foreign governments and of international organizations26 U.S.C. § 892
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Definitions and special rules26 U.S.C. § 6241
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Computation and payment of tax26 U.S.C. § 1503
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Adjusted gross income defined26 U.S.C. § 62
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Treatment of loans with below-market interest rates26 U.S.C. § 7872
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Basis to distributees26 U.S.C. § 358
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Minimum participation standards26 U.S.C. § 410
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Other definitions and special rules26 U.S.C. § 860G
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Adjustments required by changes in method of accounting26 U.S.C. § 481
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Definitions26 U.S.C. § 7701
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Insurance income26 U.S.C. § 953
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Returns relating to actions affecting basis of specified securities26 U.S.C. § 6045B
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Information relating to certain trusts and annuity plans26 U.S.C. § 6047
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Enhanced oil recovery credit26 U.S.C. § 43
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Energy efficient commercial buildings deduction26 U.S.C. § 179D
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Redemption through use of related corporations26 U.S.C. § 304
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Certain stock purchases treated as asset acquisitions26 U.S.C. § 338
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Special limitations on certain excess credits, etc.26 U.S.C. § 383
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Optional treatment of elective deferrals as Roth contributions26 U.S.C. § 402A
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General rule for taxable year of inclusion26 U.S.C. § 451
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Qualified ABLE programs26 U.S.C. § 529A
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Charitable remainder trusts26 U.S.C. § 664
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Nonrecognition of gain or loss on contribution26 U.S.C. § 721
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Investment of earnings in United States property26 U.S.C. § 956
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Definitions and special rule26 U.S.C. § 1377
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Relief from joint and several liability on joint return26 U.S.C. § 6015
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Return of S corporation26 U.S.C. § 6037
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Notice of certain transfers to foreign persons26 U.S.C. § 6038B
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Information at source26 U.S.C. § 6041
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Imposition of accuracy-related penalty on underpayments26 U.S.C. § 6662
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Tax imposed26 U.S.C. § 1
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Railroad track maintenance credit26 U.S.C. § 45G
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Zero-emission nuclear power production credit26 U.S.C. § 45U
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Rehabilitation credit26 U.S.C. § 47
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Clean electricity investment credit26 U.S.C. § 48E
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Special rules26 U.S.C. § 52
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Election to expense certain depreciable business assets26 U.S.C. § 179
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Individual retirement accounts26 U.S.C. § 408
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Special rules for nondealers26 U.S.C. § 453A
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Deductions limited to amount at risk26 U.S.C. § 465
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Exemption from tax on corporations, certain trusts, etc.26 U.S.C. § 501
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Definition of regulated investment company26 U.S.C. § 851
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Source rules for personal property sales26 U.S.C. § 865
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Tax on nonresident alien individuals26 U.S.C. § 871
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Foreign base company income26 U.S.C. § 954
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S corporation defined26 U.S.C. § 1361
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Definitions26 U.S.C. § 1402
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Distributions of property26 U.S.C. § 301
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Life insurance contract defined26 U.S.C. § 7702
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Previously-owned clean vehicles26 U.S.C. § 25E
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Electricity produced from certain renewable resources, etc.26 U.S.C. § 45
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Clean fuel production credit26 U.S.C. § 45Z
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Taxation of employee annuities26 U.S.C. § 403
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Last-in, first-out inventories26 U.S.C. § 472
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Allocation of income and deductions among taxpayers26 U.S.C. § 482
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Definitions applicable to subparts A, B, C, and D26 U.S.C. § 643
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Taxable years of partner and partnership26 U.S.C. § 706
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Disposition of investment in United States real property26 U.S.C. § 897
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Administrative adjustment request by partnership26 U.S.C. § 6227
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Citizens or residents of the United States living abroad26 U.S.C. § 911
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Residence and source rules involving possessions26 U.S.C. § 937
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Rules relating to expatriated entities and their foreign parents26 U.S.C. § 7874
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Regulations26 U.S.C. § 1502
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Capitalization and inclusion in inventory costs of certain expenses26 U.S.C. § 263A
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Foreign corporations26 U.S.C. § 367
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Roth IRAs26 U.S.C. § 408A
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Minimum vesting standards26 U.S.C. § 411
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Partner’s distributive share26 U.S.C. § 704
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Unrealized receivables and inventory items26 U.S.C. § 751
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Taxation of residual interests26 U.S.C. § 860C
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Exclusions from gross income26 U.S.C. § 883
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Income affected by treaty26 U.S.C. § 894
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Other definitions and special rules26 U.S.C. § 989
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Special rules26 U.S.C. § 1474
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Returns of brokers26 U.S.C. § 6045
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Information returns of tax return preparers26 U.S.C. § 6060
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Authority to make credits or refunds26 U.S.C. § 6402
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Failure by individual to pay estimated income tax26 U.S.C. § 6654
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Interest on certain home mortgages26 U.S.C. § 25
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Credit for qualified commercial clean vehicles26 U.S.C. § 45W
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Interest on State and local bonds26 U.S.C. § 103
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Qualified lessee construction allowances for short-term leases26 U.S.C. § 110
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Losses26 U.S.C. § 165
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Charitable, etc., contributions and gifts26 U.S.C. § 170
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Incentive stock options26 U.S.C. § 422
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Deemed paid credit for subpart F inclusions26 U.S.C. § 960
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Election of mark to market for marketable stock26 U.S.C. § 1296
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Returns relating to certain life insurance contract transactions26 U.S.C. § 6050Y
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Clean vehicle credit26 U.S.C. § 30D
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Credit for carbon oxide sequestration26 U.S.C. § 45Q
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Amount of credit26 U.S.C. § 46
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Advanced manufacturing investment credit26 U.S.C. § 48D
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Arbitrage26 U.S.C. § 148
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Amortization of goodwill and certain other intangibles26 U.S.C. § 197
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Interest on education loans26 U.S.C. § 221
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Disallowance of certain entertainment, etc., expenses26 U.S.C. § 274
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Qualifications for tax credit employee stock ownership plans26 U.S.C. § 409
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Unrelated debt-financed income26 U.S.C. § 514
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Rules for allocation of basis26 U.S.C. § 755
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Rules for certain reserves26 U.S.C. § 807
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Special rules in case of foreign oil and gas income26 U.S.C. § 907
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Basis of property acquired from a decedent26 U.S.C. § 1014
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Special rules26 U.S.C. § 1298
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Definitions26 U.S.C. § 3401
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Extension of time for filing returns26 U.S.C. § 6081
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Renumbered § 45C]26 U.S.C. § 28
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Credit for production of clean hydrogen26 U.S.C. § 45V
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Energy credit26 U.S.C. § 48
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Limitation on credit26 U.S.C. § 904
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Qualified pension, profit-sharing, and stock bonus plans26 U.S.C. § 401
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Dependent care assistance programs26 U.S.C. § 129
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Special rules for nuclear decommissioning costs26 U.S.C. § 468A
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Mark to market accounting method for dealers in securities26 U.S.C. § 475
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Basis of distributed property other than money26 U.S.C. § 732
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Straddles26 U.S.C. § 1092
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Qualified electing fund26 U.S.C. § 1295
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Averaging of farm income26 U.S.C. § 1301
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Withholdable payments to foreign financial institutions26 U.S.C. § 1471
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Definitions26 U.S.C. § 1504
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Basis information to persons acquiring property from decedent26 U.S.C. § 6035
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Information with respect to certain foreign-owned corporations26 U.S.C. § 6038A
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Returns relating to cash received in trade or business, etc.26 U.S.C. § 6050I
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Credit for increasing research activities26 U.S.C. § 41
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Definitions and special rules26 U.S.C. § 150
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Passive activity losses and credits limited26 U.S.C. § 469
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Certain expenses for which credits are allowable26 U.S.C. § 280C
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Assumption of liability26 U.S.C. § 357
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Complete liquidations of subsidiaries26 U.S.C. § 332
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Distribution of stock and securities of a controlled corporation26 U.S.C. § 355
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Period for computation of taxable income26 U.S.C. § 441
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General rule for taxable year of deduction26 U.S.C. § 461
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Special rules for modified guaranteed contracts26 U.S.C. § 817A
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Treatment of variable contracts26 U.S.C. § 817
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Certain reinsurance agreements26 U.S.C. § 845
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Failure to file notice of redetermination of foreign tax26 U.S.C. § 6689
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Branch transactions26 U.S.C. § 987
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Qualified zone property defined26 U.S.C. § 1397D
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Withholdable payments to other foreign entities26 U.S.C. § 1472
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Liquidating, etc., transactions26 U.S.C. § 6043
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Verification of returns26 U.S.C. § 6065
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Mode or time of collection26 U.S.C. § 6302
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Transfer of certain credits26 U.S.C. § 6418
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American Opportunity and Lifetime Learning credits26 U.S.C. § 25A
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Refundable credit for coverage under a qualified health plan26 U.S.C. § 36B
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Clean electricity production credit26 U.S.C. § 45Y
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Other special rules26 U.S.C. § 50
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Treatment of community income26 U.S.C. § 66
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Basis to corporations26 U.S.C. § 362
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Election of taxable year other than required taxable year26 U.S.C. § 444
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Transactions between partner and partnership26 U.S.C. § 707
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Special allocation rules for certain asset acquisitions26 U.S.C. § 1060
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Discounted unpaid losses defined26 U.S.C. § 846
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Definitions and special rules26 U.S.C. § 864
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Capital asset defined26 U.S.C. § 1221
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Interest on tax deferral26 U.S.C. § 1291
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Passive foreign investment company26 U.S.C. § 1297
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Withholding of tax on nonresident aliens26 U.S.C. § 1441
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Returns as to interests in foreign partnerships26 U.S.C. § 6046A
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State and local income tax refunds26 U.S.C. § 6050E
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Returns relating to exchanges of certain partnership interests26 U.S.C. § 6050K
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Returns relating to higher education tuition and related expenses26 U.S.C. § 6050S
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Reporting of health insurance coverage26 U.S.C. § 6055
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Low-income housing credit26 U.S.C. § 42
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New markets tax credit26 U.S.C. § 45D
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Definitions and special rules26 U.S.C. § 414
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Qualified asset account; limitation on additions to account26 U.S.C. § 419A
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General rule for methods of accounting26 U.S.C. § 446
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Interest on certain deferred payments26 U.S.C. § 483
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Reserves for losses on loans of banks26 U.S.C. § 585
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Certain revocable trusts treated as part of estate26 U.S.C. § 645
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Insurance company taxable income26 U.S.C. § 832
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Income from sources within the United States26 U.S.C. § 861
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Treatment of certain foreign currency transactions26 U.S.C. § 988
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Functional currency26 U.S.C. § 985
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Other definitions and special rules26 U.S.C. § 1275
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Election to extend time for payment of tax on undistributed earnings26 U.S.C. § 1294
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Requirement to maintain minimum essential coverage26 U.S.C. § 5000A
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Returns by exempt organizations26 U.S.C. § 6033
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Information with respect to foreign financial assets26 U.S.C. § 6038D
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Returns relating to the cancellation of indebtedness by certain entities26 U.S.C. § 6050P
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Identifying numbers26 U.S.C. § 6109
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Elective payment of applicable credits26 U.S.C. § 6417
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Certain fringe benefits26 U.S.C. § 132
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Dependent defined26 U.S.C. § 152
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Interest26 U.S.C. § 163
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Bad debts26 U.S.C. § 166
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Special rules for credits and deductions26 U.S.C. § 642
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General rule for inventories26 U.S.C. § 471
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Political organizations26 U.S.C. § 527
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Special rules applicable to sections 661 and 66226 U.S.C. § 663
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Allowance of deductions and credits26 U.S.C. § 874
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Branch profits tax26 U.S.C. § 884
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Tax imposed on certain built-in gains26 U.S.C. § 1374
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Foreign tax-exempt organizations26 U.S.C. § 1443
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Valuation tables26 U.S.C. § 7520
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Losses on small business stock26 U.S.C. § 1244
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Distributions26 U.S.C. § 1368
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Definitions26 U.S.C. § 1473
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Information with respect to certain fines, penalties, and other amounts26 U.S.C. § 6050X
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Failure by corporation to pay estimated income tax26 U.S.C. § 6655