(a) In general—(1) Scope. This section provides rules for allocating basis adjustments under sections 743(b) and 734(b) among partnership property. If there is a basis adjustment to which this section applies, the basis adjustment is allocated among the partnership's assets as follows. First, the partnership must determine the value of each of its assets under paragraphs (a)(2) through (5) of this section. Second, the basis adjustment is allocated between the two classes of property described in section 755(b). These classes of property consist of capital assets and section 1231(b) property (capital gain property), and any other property of the partnership (ordinary income property). For purposes of this section, properties and potential gain treated as unrealized receivables under section 751(c) and the regulations thereunder shall be treated as separate assets that are ordinary income property. Third, the portion of the basis adjustment allocated to each class is allocated among the items within the class. Basis adjustments under section 743(b) are allocated among partnership assets under paragraph (b) of this section. Basis adjustments under section 734(b) are allocated among partnership assets under paragraph (c) of this section.

(2) Coordination of sections 755 and 1060. If there is a basis adjustment to which this section applies, and the assets of the partnership constitute a trade or business (as described in § 1.1060-1(b)(2)), then the partnership is required to use the residual method to assign values to the partnership's section 197 intangibles. To do so, the partnership must, first, determine the value of partnership assets other than section 197 intangibles under paragraph (a)(3) of this section. The partnership then must determine partnership gross value under paragraph (a)(4) of this section. Last, the partnership must assign values to the partnership's section 197 intangibles under paragraph (a)(5) of this section. For purposes of this section, the term section 197 intangibles includes all section 197 intangibles (as defined in section 197), as well as any goodwill or going concern value that would not qualify as a section 197 intangible under section 197.

(3) Values of properties other than section 197 intangibles. For purposes of this section, the fair market value of each item of partnership property other than section 197 intangibles shall be determined on the basis of all the facts and circumstances, taking into account section 7701(g).

(4) Partnership gross value—(i) Basis adjustments under section 743(b)—(A) In general. Except as provided in paragraph (a)(4)(ii) of this section, in the case of a basis adjustment under section 743(b), partnership gross value generally is equal to the amount that, if assigned to all partnership property, would result in a liquidating distribution to the partner equal to the transferee's basis in the transferred partnership interest immediately following the relevant transfer (reduced by the amount, if any, of such basis that is attributable to partnership liabilities).

(B) Special situations. In certain circumstances, such as where income or loss with respect to particular section 197 intangibles are allocated differently among partners, partnership gross value may vary depending on the values of particular section 197 intangibles held by the partnership. In these special situations, the partnership must assign value, first, among section 197 intangibles (other than goodwill and going concern value) in a reasonable manner that is consistent with the ordering rule in paragraph (a)(5) of this section and would cause the appropriate liquidating distribution under paragraph (a)(4)(i)(A) of this section. If the actual fair market values, determined on the basis of all the facts and circumstances, of all section 197 intangibles (other than goodwill and going concern value) is not sufficient to cause the appropriate liquidating distribution, then the fair market value of goodwill and going concern value shall be presumed to equal an amount that if assigned to goodwill and going concern value would cause the appropriate liquidating distribution.

(C) Income in respect of a decedent. Solely for the purpose of determining partnership gross value under this paragraph (a)(4)(i), where a partnership interest is transferred as a result of the death of a partner, the transferee's basis in its partnership interest is determined without regard to section 1014(c) or section 1022(f), and is deemed to be adjusted for that portion of the interest, if any, that is attributable to items representing income in respect of a decedent under section 691.

(ii) Basis adjustments under section 743(b) resulting from substituted basis transactions. This paragraph (a)(4)(ii) applies to basis adjustments under section 743(b) that result from exchanges in which the transferee's basis in the partnership interest is determined in whole or in part by reference to the transferor's basis in the interest or to the basis of other property held at any time by the transferee (substituted basis transactions). In the case of a substituted basis transaction, partnership gross value equals the value of the entire partnership as a going concern, increased by the amount of partnership liabilities at the time of the exchange giving rise to the basis adjustment.

(iii) Basis adjustments under section 734(b). In the case of a basis adjustment under section 734(b), partnership gross value equals the value of the entire partnership as a going concern immediately following the distribution causing the adjustment, increased by the amount of partnership liabilities immediately following the distribution.

(5) Determining the values of section 197 intangibles—(i) Two classes. If the aggregate value of partnership property other than section 197 intangibles (as determined in paragraph (a)(3) of this section) is equal to or greater than partnership gross value (as determined in paragraph (a)(4) of this section), then all section 197 intangibles are deemed to have a value of zero for purposes of this section. In all other cases, the aggregate value of the partnership's section 197 intangibles (the residual section 197 intangibles value) is deemed to equal the excess of partnership gross value over the aggregate value of partnership property other than section 197 intangibles. The residual section 197 intangibles value must be allocated between two asset classes in the following order—

(A) Among section 197 intangibles other than goodwill and going concern value; and

(B) To goodwill and going concern value.

(ii) Values assigned to section 197 intangibles other than goodwill and going concern value. The fair market value assigned to a section 197 intangible (other than goodwill and going concern value) shall not exceed the actual fair market value (determined on the basis of all the facts and circumstances) of that asset on the date of the relevant transfer. If the residual section 197 intangibles value is less than the sum of the actual fair market values (determined on the basis of all the facts and circumstances) of all section 197 intangibles (other than goodwill and going concern value) held by the partnership, then the residual section 197 intangibles value must be allocated among the individual section 197 intangibles (other than goodwill and going concern value) as follows. The residual section 197 intangibles value is assigned first to any section 197 intangibles (other than goodwill and going concern value) having potential gain that would be treated as unrealized receivables under the flush language of section 751(c) (flush language receivables) to the extent of the basis of those section 197 intangibles and the amount of income arising from the flush language receivables that the partnership would recognize if the section 197 intangibles were sold for their actual fair market values (determined based on all the facts and circumstances) (collectively, the flush language receivables value). If the value assigned to section 197 intangibles (other than goodwill and going concern value) is less than the flush language receivables value, then the assigned value is allocated among the properties giving rise to the flush language receivables in proportion to the flush language receivables value in those properties. Any remaining residual section 197 intangibles value is allocated among the remaining portions of the section 197 intangibles (other than goodwill and going concern value) in proportion to the actual fair market values of such portions (determined based on all the facts and circumstances).

(iii) Value assigned to goodwill and going concern value. The fair market value of goodwill and going concern value is the amount, if any, by which the residual section 197 intangibles value exceeds the aggregate value of the partnership's section 197 intangibles (other than goodwill and going concern value).

(6) Examples. The provisions of paragraphs (a)(2) through (5) are illustrated by the following examples, which assume that the partnerships have an election in effect under section 754 at the time of the transfer and that the assets of each partnership constitute a trade or business (as described in § 1.1060-1(b)(2)). Except as provided, no partnership asset (other than inventory) is property described in section 751(a), and partnership liabilities are secured by all partnership assets. The examples are as follows:

(b) Adjustments under section 743(b)—(1) Generally. (i) Application. For basis adjustments under section 743(b) resulting from substituted basis transactions, paragraph (b)(5) of this section shall apply. For basis adjustments under section 743(b) resulting from all other transfers, paragraphs (b)(2) through (4) of this section shall apply. For transfers subject to section 334(b)(1)(B), see § 1.334-1(b)(3)(iii)(C)(1) (treating a determination of basis under § 1.334-1(b)(3) as a determination not by reference to the transferor's basis solely for purposes of applying section 755); for transfers subject to section 362(e)(1), see § 1.362-3(b)(4)(i) (treating a determination of basis under § 1.362-3 as a determination not by reference to the transferor's basis solely for purposes of applying section 755); for transfers subject to section 362(e)(2), see § 1.362-4(c)(3)(i) (treating a determination of basis under § 1.362-4 as a determination by reference to the transferor's basis for all purposes). Except as provided in paragraph (b)(5) of this section, the portion of the basis adjustment allocated to one class of property may be an increase while the portion allocated to the other class is a decrease. This would be the case even though the total amount of the basis adjustment is zero. Except as provided in paragraph (b)(5) of this section, the portion of the basis adjustment allocated to one item of property within a class may be an increase while the portion allocated to another is a decrease. This would be the case even though the basis adjustment allocated to the class is zero.

(ii) Hypothetical transaction. For purposes of paragraphs (b)(2) through (b)(4) of this section, the allocation of the basis adjustment under section 743(b) between the classes of property and among the items of property within each class are made based on the allocations of income, gain, or loss (including remedial allocations under § 1.704-3(d)) that the transferee partner would receive (to the extent attributable to the acquired partnership interest) if, immediately after the transfer of the partnership interest, all of the partnership's property were disposed of in a fully taxable transaction for cash in an amount equal to the fair market value of such property (the hypothetical transaction). See § 1.460-4(k)(3)(v)(B) for a rule relating to the computation of income or loss that would be allocated to the transferee from a contract accounted for under a long-term contract method of accounting as a result of the hypothetical transaction.

(2) Allocations between classes of property—(i) In general. The amount of the basis adjustment allocated to the class of ordinary income property is equal to the total amount of income, gain, or loss (including any remedial allocations under § 1.704-3(d)) that would be allocated to the transferee (to the extent attributable to the acquired partnership interest) from the sale of all ordinary income property in the hypothetical transaction. The amount of the basis adjustment to capital gain property is equal to—

(A) The total amount of the basis adjustment under section 743(b); less

(B) The amount of the basis adjustment allocated to ordinary income property under the preceding sentence; provided, however, that in no event may the amount of any decrease in basis allocated to capital gain property exceed the partnership's basis (or in the case of property subject to the remedial allocation method, the transferee's share of any remedial loss under § 1.704-3(d) from the hypothetical transaction) in capital gain property. In the event that a decrease in basis allocated to capital gain property would otherwise exceed the partnership's basis in capital gain property, the excess must be applied to reduce the basis of ordinary income property.

(ii) Examples. The provisions of this paragraph (b)(2) are illustrated by the following examples:

(3) Allocation within the class—(i) Ordinary income property. The amount of the basis adjustment to each item of property within the class of ordinary income property is equal to—

(A) The amount of income, gain, or loss (including any remedial allocations under § 1.704-3(d)) that would be allocated to the transferee (to the extent attributable to the acquired partnership interest) from the hypothetical sale of the item; reduced by

(B) The product of—

(1) Any decrease to the amount of the basis adjustment to ordinary income property required pursuant to the last sentence of paragraph (b)(2)(i) of this section; multiplied by

(2) A fraction, the numerator of which is the fair market value of the item of property to the partnership and the denominator of which is the total fair market value of all of the partnership's items of ordinary income property.

(ii) Capital gain property. The amount of the basis adjustment to each item of property within the class of capital gain property is equal to—

(A) The amount of income, gain, or loss (including any remedial allocations under § 1.704-3(d)) that would be allocated to the transferee (to the extent attributable to the acquired partnership interest) from the hypothetical sale of the item; minus

(B) The product of—

(1) The total amount of gain or loss (including any remedial allocations under § 1.704-3(d)) that would be allocated to the transferee (to the extent attributable to the acquired partnership interest) from the hypothetical sale of all items of capital gain property, minus the amount of the positive basis adjustment to all items of capital gain property or plus the amount of the negative basis adjustment to capital gain property; multiplied by

(2) A fraction, the numerator of which is the fair market value of the item of property to the partnership, and the denominator of which is the fair market value of all of the partnership's items of capital gain property.

(iii) Special rules—(A) Assets in which partner has no interest. An asset with respect to which the transferee partner has no interest in income, gain, losses, or deductions shall not be taken into account in applying paragraph (b)(3)(ii)(B) of this section.

(B) Limitation in decrease of basis. In no event may the amount of any decrease in basis allocated to an item of capital gain property under paragraph (b)(3)(ii)(B) of this section exceed the partnership's adjusted basis in that item (or in the case of property subject to the remedial allocation method, the transferee's share of any remedial loss under § 1.704-3(d) from the hypothetical transaction). In the event that a decrease in basis allocated under paragraph (b)(3)(ii)(B) of this section to an item of capital gain property would otherwise exceed the partnership's adjusted basis in that item, the excess must be applied to reduce the remaining basis, if any, of other capital gain assets pro rata in proportion to the bases of such assets (as adjusted under this paragraph (b)(3)).

(iv) Examples. The provisions of this paragraph (b)(3) are illustrated by the following examples:

(4) Income in respect of a decedent—(i) In general. Where a partnership interest is transferred as a result of the death of a partner, under section 1014(c) or section 1022(f), the transferee's basis in its partnership interest is not adjusted for that portion of the interest, if any, that is attributable to items representing income in respect of a decedent under section 691. See § 1.742-1. Accordingly, if a partnership interest is transferred as a result of the death of a partner, and the partnership holds assets representing income in respect of a decedent, no part of the basis adjustment under section 743(b) is allocated to these assets. See § 1.743-1(b).

(ii) The provisions of this paragraph (b)(4) are illustrated by the following example:

(5) Substituted basis transactions—(i) In general. This paragraph (b)(5) applies to basis adjustments under section 743(b) that result from exchanges in which the transferee's basis in the partnership interest is determined in whole or in part by reference to the transferor's basis in that interest. For exchanges on or after June 9, 2003, this paragraph (b)(5) also applies to basis adjustments under section 743(b) that result from exchanges in which the transferee's basis in the partnership interest is determined by reference to other property held at any time by the transferee. For example, this paragraph (b)(5) applies if a partnership interest is contributed to a corporation in a transaction to which section 351 applies, if a partnership interest is contributed to a partnership in a transaction to which section 721(a) applies, or if a partnership interest is distributed by a partnership in a transaction to which section 731(a) applies.

(ii) Allocations between classes of property. If the total amount of the basis adjustment under section 743(b) is zero, then no adjustment to the basis of partnership property will be made under this paragraph (b)(5). If there is an increase in basis to be allocated to partnership assets, such increase must be allocated to capital gain property or ordinary income property, respectively, only if the total amount of gain or loss (including any remedial allocations under § 1.704-3(d)) that would be allocated to the transferee (to the extent attributable to the acquired partnership interest) from the hypothetical sale of all such property would result in a net gain or net income, as the case may be, to the transferee. Where, under the preceding sentence, an increase in basis may be allocated to both capital gain assets and ordinary income assets, the increase shall be allocated to each class in proportion to the net gain or net income, respectively, which would be allocated to the transferee from the sale of all assets in each class. If there is a decrease in basis to be allocated to partnership assets, such decrease must be allocated to capital gain property or ordinary income property, respectively, only if the total amount of gain or loss (including any remedial allocations under § 1.704-3(d)) that would be allocated to the transferee (to the extent attributable to the acquired partnership interest) from the hypothetical sale of all such property would result in a net loss to the transferee. Where, under the preceding sentence, a decrease in basis may be allocated to both capital gain assets and ordinary income assets, the decrease shall be allocated to each class in proportion to the net loss which would be allocated to the transferee from the sale of all assets in each class.

(iii) Allocations within the classes—(A) Increases. If there is an increase in basis to be allocated within a class, the increase must be allocated first to properties with unrealized appreciation in proportion to the transferee's share of the respective amounts of unrealized appreciation before such increase (but only to the extent of the transferee's share of each property's unrealized appreciation). Any remaining increase must be allocated among the properties within the class in proportion to the transferee's share of the amount that would be realized by the partnership upon the hypothetical sale of each asset in the class.

(B) Decreases. If there is a decrease in basis to be allocated within a class, the decrease must be allocated first to properties with unrealized depreciation in proportion to the transferee's shares of the respective amounts of unrealized depreciation before such decrease (but only to the extent of the transferee's share of each property's unrealized depreciation). Any remaining decrease must be allocated among the properties within the class in proportion to the transferee's shares of their adjusted bases (as adjusted under the preceding sentence).

(C) Limitation in decrease of basis. Where, as the result of a transaction to which this paragraph (b)(5) applies, a decrease in basis must be allocated to capital gain assets, ordinary income assets, or both, and the amount of the decrease otherwise allocable to a particular class exceeds the transferee's share of the adjusted basis to the partnership of all depreciated assets in that class, the transferee's negative basis adjustment is limited to the transferee's share of the partnership's adjusted basis in all depreciated assets in that class.

(D) Carryover adjustment. Where a transferee's negative basis adjustment under section 743(b) cannot be allocated to any asset, because the adjustment exceeds the transferee's share of the adjusted basis to the partnership of all depreciated assets in a particular class, the adjustment is made when the partnership subsequently acquires property of a like character to which an adjustment can be made.

(iv) Examples. The provisions of this paragraph (b)(5) are illustrated by the following examples:

(c) Adjustments under section 734(b)—(1) Allocations between classes of property—(i) General rule. Where there is a distribution of partnership property resulting in an adjustment to the basis of undistributed partnership property under section 734(b)(1)(B) or (b)(2)(B), the adjustment must be allocated to remaining partnership property of a character similar to that of the distributed property with respect to which the adjustment arose. Thus, when the partnership's adjusted basis of distributed capital gain property immediately prior to distribution exceeds the basis of the property to the distributee partner (as determined under section 732), the basis of the undistributed capital gain property remaining in the partnership is increased by an amount equal to the excess. Conversely, when the basis to the distributee partner (as determined under section 732) of distributed capital gain property exceeds the partnership's adjusted basis of such property immediately prior to the distribution, the basis of the undistributed capital gain property remaining in the partnership is decreased by an amount equal to such excess. Similarly, where there is a distribution of ordinary income property, and the basis of the property to the distributee partner (as determined under section 732) is not the same as the partnership's adjusted basis of the property immediately prior to distribution, the adjustment is made only to undistributed property of the same class remaining in the partnership.

(ii) Special rule. Where there is a distribution resulting in an adjustment under section 734(b)(1)(A) or (b)(2)(A) to the basis of undistributed partnership property, the adjustment is allocated only to capital gain property.

(2) Allocations within the classes—(i) Increases. If there is an increase in basis to be allocated within a class, the increase must be allocated first to properties with unrealized appreciation in proportion to their respective amounts of unrealized appreciation before such increase (but only to the extent of each property's unrealized appreciation). Any remaining increase must be allocated among the properties within the class in proportion to their fair market values.

(ii) Decreases. If there is a decrease in basis to be allocated within a class, the decrease must be allocated first to properties with unrealized depreciation in proportion to their respective amounts of unrealized depreciation before such decrease (but only to the extent of each property's unrealized depreciation). Any remaining decrease must be allocated among the properties within the class in proportion to their adjusted bases (as adjusted under the preceding sentence).

(3) Limitation in decrease of basis. Where a decrease in the basis of partnership assets is required under section 734(b)(2) and the amount of the decrease exceeds the adjusted basis to the partnership of property of the required character, the basis of such property is reduced to zero (but not below zero).

(4) Carryover adjustment. Where, in the case of a distribution, an increase or a decrease in the basis of undistributed property cannot be made because the partnership owns no property of the character required to be adjusted, or because the basis of all the property of a like character has been reduced to zero, the adjustment is made when the partnership subsequently acquires property of a like character to which an adjustment can be made.

(5) Cross reference. See § 1.460-4(k)(3)(v)(B) for a rule relating to the computation of unrealized appreciation or depreciation in a contract accounted for under a long-term contract method of accounting.

(6) Example. The following example illustrates this paragraph (c):

(d) Required statements. See § 1.743-1(k)(2) for provisions requiring the transferee of a partnership interest to provide information to the partnership relating to the transfer of an interest in the partnership. See § 1.743-1(k)(1) for a provision requiring the partnership to attach a statement to the partnership return showing the computation of a basis adjustment under section 743(b) and the partnership properties to which the adjustment is allocated under section 755. See § 1.732-1(d)(3) for a provision requiring a transferee partner to attach a statement to its return showing the computation of a basis adjustment under section 732(d) and the partnership properties to which the adjustment is allocated under section 755. See § 1.732-1(d)(5) for a provision requiring the partnership to provide information to a transferee partner reporting a basis adjustment under section 732(d).

(e) Effective/applicability dates—(1) Generally. Except as provided in paragraphs (b)(5) and (e)(2) of this section, this section applies to transfers of partnership interests and distributions of property from a partnership that occur on or after December 15, 1999.

(2) Special rules. Paragraphs (a) and (b)(3)(iii) of this section apply to transfers of partnership interests and distributions of property from a partnership that occur on or after June 9, 2003. The provisions of paragraphs (a)(4)(i)(C) and (b)(4)(i) of this section relating to section 1022 are effective on and after the date January 19, 2017.