§ 1.355-6. Recognition of gain on certain distributions of stock or securities in controlled corporation.

D owns all of the stock of D1, and D1 owns all the stock of C. A purchases 60 percent of the D stock for cash. Within five years of A's purchase, D1 distributes the C stock to D. A is treated as having purchased 60 percent of the stock of both D1 and C on the date A purchases 60 percent of the D stock under the attribution rules of section 355(d)(8) and paragraph (e)(1) of this section. The C stock received by D is attributable to a distribution on purchased D1 stock under section 355(d)(3)(B)(ii). Accordingly, the D1 and C stock each is disqualified stock under section 355(d)(3) and paragraph (b)(2) of this section, and A is a disqualified person under paragraph (b)(3)(ii) of this section. However, the purposes of section 355(d) under paragraph (b)(3)(i) of this section are not violated. A did not increase direct or indirect ownership in D1 or C. In addition, D's basis in the C stock is not a purchased basis under paragraph (b)(3)(iii) of this section because both the D1 and the C stock are treated as acquired by purchase solely under the attribution rules of section 355(d)(8) and paragraph (e)(1) of this section. Accordingly, D1's distribution of the C stock to D is not a disqualified distribution under section 355(d)(2) and paragraph (b)(1) of this section.

The facts are the same as Example 1, except that D immediately further distributes the C stock to its shareholders (including A) pro rata. The D and C stock each is disqualified stock under section 355(d)(3) and paragraph (b)(2) of this section, and A is a disqualified person under paragraph (b)(3)(ii) of this section. The purposes of section 355(d) under paragraph (b)(3)(i) of this section are violated. A did not increase direct or indirect ownership in D or C. However, A's basis in the C stock is a purchased basis under paragraph (b)(3)(iii) of this section because the D stock is not treated as acquired by purchase solely under the attribution rules of section 355(d)(8) and paragraph (e)(1) of this section. Accordingly, the further distribution is a disqualified distribution under section 355(d)(2) and paragraph (b)(1) of this section.

The facts are the same as Example 1, except that D immediately further distributes the C stock to A in exchange for A's purchased stock in D. The C stock received by A is attributable to a distribution on purchased D stock under section 355(d)(3)(B)(ii), and A's basis in the C stock is determined by reference to the adjusted basis of A's purchased D stock under paragraph (e)(3) of this section. (Under paragraph (b)(2)(iii)(B)(3) of this section, the basis resulting from A's purchase of D stock is not eliminated solely for purposes of determining if the C stock acquired by A is disqualified stock immediately after the distribution, notwithstanding that paragraph (e)(3) of this section applies to the exchange.) Accordingly, the D stock and the C stock each is disqualified stock under section 355(d)(3) and paragraph (b)(2) of this section, and A is a disqualified person under paragraph (b)(3)(ii) of this section. The purposes of section 355(d) under paragraph (b)(3)(i) of this section are violated because A increased its ownership in C from a 60 percent indirect interest to a 100 percent direct interest, and because A's basis in the C stock is a purchased basis under paragraph (b)(3)(iii) of this section. Accordingly, the further distribution is a disqualified distribution under section 355(d)(2) and paragraph (b)(1) of this section.

D1 owns all the stock of C. D purchases all of the stock of D1 for cash. Within five years of D's purchase of D1, P acquires all of the stock of D1 from D in a section 368(a)(1)(B) reorganization that is not a reorganization under section 368(a)(1)(A) by reason of section 368(a)(2)(E), and D1 distributes all of its C stock to P. P is treated as having acquired the D1 stock by purchase on the date D acquired it under the transferred basis rule of section 355(d)(5)(C) and paragraph (e)(2) of this section. P is treated as having purchased all of the C stock on the date D purchased the D1 stock under the attribution rules of section 355(d)(8) and paragraph (e)(1) of this section, and the C stock received by P is attributable to a distribution on purchased D1 stock under section 355(d)(3)(B)(ii). Accordingly, the D1 and C stock each is disqualified stock under section 355(d)(3) and paragraph (b)(2) of this section, and P is a disqualified person under paragraph (b)(3)(ii) of this section. The purposes of section 355(d) under paragraph (b)(3)(i) of this section are violated. P did not increase direct or indirect ownership in D1 or C. However, P's basis in the C stock is a purchased basis under paragraph (b)(3)(iii) of this section because the D1 stock is not treated as acquired by purchase solely under the attribution rules of section 355(d)(8) and paragraph (e)(1) of this section. Accordingly, D1's distribution of the C stock to P is a disqualified distribution under section 355(d)(2) and paragraph (b)(1) of this section.

P owns 50 percent of the stock of D, the remaining D stock is owned by unrelated persons, D owns all the stock of C, and A purchases all of the P stock from the P shareholders. Within five years of A's purchase, D distributes all of the C stock to P in exchange for P's D stock. A is treated as having purchased 50 percent of the stock of both D and C on the date A purchases the P stock under the attribution rules of section 355(d)(8) and paragraph (e)(1) of this section. The C stock received by P is attributable to a distribution on purchased D stock under section 355(d)(3)(B)(ii). Accordingly, the D stock and the C stock each is disqualified stock under section 355(d)(3) and paragraph (b)(2) of this section, and A is a disqualified person under paragraph (b)(3)(ii) of this section. The purposes of section 355(d) under paragraph (b)(3)(i) of this section are violated because, even though P's basis in the C stock is not a purchased basis under paragraph (b)(3)(iii) of this section, A increased its direct or indirect ownership in C from a 50 percent indirect interest to a 100 percent indirect interest. Accordingly, D's distribution of the C stock to P is a disqualified distribution under section 355(d)(2) and paragraph (b)(1) of this section.

A purchases all of the stock of T. T later merges into D in a section 368(a)(1)(A) reorganization and A exchanges its purchased T stock for 60 percent of the stock of D. D owns all of the stock of D1 and D2, D1 and D2 each owns 50 percent of the stock of D3, and D3 owns all of the stock of C. Within five years of A's purchase of the T stock, D3 distributes the C stock to D1 in exchange for all of D1's D3 stock. A is treated as having acquired 60 percent of the D stock by purchase on the date A purchases the T stock under paragraph (e)(3) of this section. A is treated as having purchased 60 percent of the stock of D1, D2, D3, and C on the date A purchases the T stock under the attribution rules of section 355(d)(8) and paragraph (e)(1) of this section. The C stock received by D1 is attributable to a distribution on purchased D3 stock under section 355(d)(3)(B)(ii). Accordingly, the D3 stock and the C stock each is disqualified stock under section 355(d)(3) and paragraph (b)(2) of this section, and A is a disqualified person under paragraph (b)(3)(ii) of this section. However, the purposes of section 355(d) under paragraph (b)(3)(i) of this section are not violated. A did not increase direct or indirect ownership in D3 or C, and D1's basis in the C stock is not a purchased basis under paragraph (b)(3)(iii) of this section because the D3 stock is treated as acquired by purchase solely under the attribution rules of section 355(d)(8) and paragraph (e)(1) of this section. Accordingly, D3's distribution of the C stock to D1 is not a disqualified distribution under section 355(d)(2) and paragraph (b)(1) of this section.

P owns 30 percent of the stock of D, D owns all of the stock of D1, and D1 owns all of the stock of C. P purchases the remaining 70 percent of the D stock for cash. Within five years of P's purchase, P liquidates D in a transaction qualifying under sections 332 and 337(a), and D1 then distributes the stock of C to P. Prior to the liquidation, P is treated as having purchased 70 percent of the stock of D1 and C on the date P purchases the D stock under the attribution rules of section 355(d)(8)(B) and paragraph (e)(1) of this section. After the liquidation, however, under paragraph (b)(2)(iii) of this section, P is not treated as having acquired by purchase the D1 or the C stock under section 355(d)(8)(B) and paragraph (e)(1) of this section because P's basis in the D stock is eliminated in the liquidation of D. Under section 334(b)(1), P's basis in the D1 stock is determined by reference to D's basis in the D1 stock and not by reference to P's basis in D. Paragraph (d)(2)(i)(B) of this section does not treat the D1 stock as newly purchased in P's hands because no gain or loss was recognized by D in the liquidation. Accordingly, neither the D1 stock nor the C stock is disqualified stock under section 355(d)(3) and paragraph (b)(2) of this section in P's hands, and the distribution is not a disqualified distribution under section 355(d)(2) and paragraph (b)(1) of this section.

D owns all of the stock of D1, and D1 owns all of the stock of C. P purchases 60 percent of the D stock for cash. Within five years of P's purchase, D merges into P in a section 368(a)(1)(A) reorganization, with the D shareholders other than P receiving solely P stock in exchange for their D stock, and D1 then distributes the stock of C to P. Prior to the merger, P is treated as having purchased 60 percent of the stock of D1 and C on the date P purchases the D stock under the attribution rules of section 355(d)(8) and paragraph (e)(1) of this section. After the merger, however, under paragraph (b)(2)(iii) of this section, P is not treated as having acquired by purchase the D1 or the C stock under section 355(d)(8)(B) and paragraph (e)(1) of this section because P's basis in the D stock is eliminated in the merger. Under section 362(b), P's basis in the D1 stock is determined by reference to D's basis in the D1 stock and not by reference to P's basis in D. Paragraph (d)(2)(i)(B) of this section does not treat the D1 stock as newly purchased in P's hands because no gain or loss was recognized by D in the merger. Accordingly, neither the D1 stock nor the C stock is disqualified stock under section 355(d)(3) and paragraph (b)(2) of this section in P's hands, and the distribution is not a disqualified distribution under section 355(d)(2) and paragraph (b)(1) of this section.

A purchases all the stock of C for cash on Date 1. D acquires all of the stock of C from A in a section 368(a)(1)(B) reorganization that is not a reorganization under section 368(a)(1)(A) by reason of section 368(A)(1)(E). A receives ten percent of the D stock in the transaction. The remaining D stock is owned by B. Within five years of A's purchase of the C stock, D distributes all the stock of C pro rata to A and B. Under the transferred basis rule of paragraph (e)(2) of this section, D is treated as having purchased all of the C stock on the date A acquired it. Under the exchanged basis rule of paragraph (e)(3) of this section, A is treated as having purchased its D stock on Date 1 and A is treated as having purchased ten percent of the C stock on Date 1 under the attribution rules of section 355(d)(8) and paragraph (e)(3) of this section. Moreover, under paragraph (b)(2)(iii)(C) of this section, A's basis in the C stock resulting from A's Date 1 purchase of C stock is eliminated. After the distribution, A's and B's bases in their C stock are determined by reference to the bases of their D stock under § 1.358-2(a)(2) (and not by reference to D's basis in the C stock). D's basis in the stock of C resulting from its deemed purchase of that stock under paragraph (e)(2) of this section is eliminated by the distribution of the C stock because it would no longer be taken into account by any person in determining gain or loss on the sale of C stock. Therefore, the C stock distributed to A and B is not disqualified stock as a result of D's purchase of C. However, A's basis in its D stock resulting from its deemed purchase of that stock under paragraph (e)(3) of this section is not eliminated. Therefore, A's ten percent interest in the stock of D is disqualified stock. Furthermore, A's ten percent interest in the stock of C is disqualified stock because the distribution of the C stock is attributable to A's D stock that was acquired by purchase. However, there has not been a disqualified distribution because no person, immediately after the distribution, holds disqualified stock in either D or C that constitutes a 50 percent or greater interest in such corporation.

—(i) P owns all the stock of D. D purchases all the stock of D1 for cash on Date 1. D1 owns all the stock of C (which owns all the stock of C1) and S. Within five years of Date 1, D1 distributes all the stock of C to D. The D1 and C stock each is disqualified stock under section 355(d)(3) and paragraph (b)(2) of this section, and D is a disqualified person under paragraph (b)(3)(ii) of this section. The purposes of section 355(d) under paragraph (b)(3)(i) of this section are violated. D did not increase direct or indirect ownership in D1 or C. However, D's basis in the C stock is a purchased basis under paragraph (b)(3)(iii) of this section because the D1 stock is not treated as acquired by purchase solely under the attribution rules of section 355(d)(8) and paragraph (e)(1) of this section. Accordingly, the distribution is a disqualified distribution under section 355(d) and paragraph (b)(1) of this section. D's basis in the D1 stock is allocated pursuant to § 1.358-2 between the D1 stock and the C stock. Therefore, under paragraph (e)(4) of this section, the C stock is deemed to be acquired by purchase on Date 1, the date D purchased all the stock of D1. If thereafter, and within five years of Date 1, C were to distribute all the stock of C1 to D, that distribution would also be a disqualified distribution because of D's deemed purchase of the stock of C.

(ii) Following the distribution of the stock of C by D1, and within five years of Date 1, D distributes all the stock of D1 to P. Under paragraph (b)(2)(iii)(D) of this section, the determination of whether D's basis in D1 has been eliminated shall be made without regard to D's allocated basis in C. After the distribution, P's basis in the D1 stock is determined by reference to its basis in its D stock under § 1.358-2(a)(2) (and not by reference to D's basis in the D1 stock). D's basis in the D1 stock resulting from the purchase of that stock is eliminated by the distribution of the D1 stock because it would no longer be taken into account by any person in determining gain or loss on the sale of D1 stock. Therefore, the D1 stock distributed to P is not disqualified stock as a result of D's purchase of D1. Moreover, a subsequent distribution of the S stock by D1 to P would not be a disqualified distribution because both the D1 and S stock would cease to be treated as purchased when D's basis in D1 has been eliminated.

B wholly owns D, which wholly owns C. With a principal purpose to avoid the purposes of section 355(d), A, B, D, and C engage in the following transactions. A purchases 45 of 100 shares of the only class of D stock. Within five years after A's purchase, D distributes all of its 100 shares in C to A and B pro rata. D then redeems 20 shares of B's D stock, and C redeems 20 shares of B's C stock. After the redemption, A owns 45 shares and B owns 35 shares in each of D and C. Under paragraph (b)(4)(i) of this section, the Commissioner may treat A as owning disqualified stock in D and C that constitutes a 50 percent or greater interest in D and C immediately after the distribution. Under that treatment, the distribution is a disqualified distribution under section 355(d)(2) and paragraph (b)(1) of this section.

D owns all of the stock of C. A purchases 40 percent of D's only class of stock and an option to purchase D stock from D, that if deemed exercised, would result in A owning a total of 60 percent of the stock of D. Assume that no control premium or minority or blockage discount applies to the D stock underlying the option. The option permits A to acquire the D stock at $30 per share, and D's stock has a fair market value of $27 per share on the date the option is issued. The option is subject to no contingencies or restrictive covenants, may be exercised within five years after its issuance, and is not described in paragraph (c)(3)(vi) of this section (regarding instruments generally not treated as options). Within five years of A's purchase of the D stock and option, D distributes the stock of its subsidiary C pro rata and A receives 40 percent of the C stock in the distribution. Immediately after the distribution, D's stock has a fair market value of $30 per share and C's stock has a fair market value of $15 per share. At the time of the distribution, A exchanges A's option for an option to purchase 20 percent of the D stock at $20 per share and an option to purchase 20 percent of the C stock at $10 per share. The exchange of the options in D for options in D and C did not materially increase the likelihood that the options would be exercised. Nonetheless, based on all the facts and circumstances, it is reasonably certain, immediately after the distribution, that A will exercise its options. Under paragraph (c)(3)(iii)(C) of this section, the substituted options are treated as issued on the date the original option was issued. Accordingly, the options are treated as exercised by A on the date that A purchased the original option. A is treated as owning 60 percent of the D stock and 60 percent of the C stock that is disqualified stock, and the distribution is a disqualified distribution under section 355(d)(2) and paragraph (b)(1) of this section.

D owns all of the stock of C. A purchases 37 percent of D's only class of stock. B owns 38 percent of the D stock, and the remaining 25 percent is owned by 20 individuals, each of whom owns less than five percent of D's stock. A purchases an option to purchase an additional 14 percent of the D stock from shareholders other than B for $50 per share. The option is subject to no contingencies or restrictive covenants, may be exercised within five years after its issuance, and is not described in paragraph (c)(3)(vi) of this section. Within five years of A's purchase of the option and 37 percent interest in D, D distributes the stock of its subsidiary C pro rata and A receives 37 percent of the C stock in the distribution. At the time of the distribution, A exchanges its option for an option to purchase 14 percent of the D stock at $25 per share and an option to purchase 14 percent of the C stock at $25 per share. Assume that, although a shareholder that owned no D or C stock would pay only $20 per share for D or C stock immediately after the distribution, a shareholder in A's position would pay $30 per share for 14 percent of the stock of D or C because of the control premium which attaches to the shares. The control premium is taken into account under paragraph (c)(3)(vii)(A) of this section to determine whether A is reasonably certain to exercise the options. The exchange of the options in D for options in D and C did not materially increase the likelihood that the options would be exercised. Nonetheless, based on all the facts and circumstances, it is reasonably certain, immediately after the distribution, that A will exercise its options. Under paragraph (c)(3)(iii)(C) of this section, the substituted options are treated as issued on the date the original option was issued. Accordingly, the options are treated as exercised by A on the date that A purchased the original option. Under paragraph (c)(2) of this section, all shares of D and C are considered to have the same value to determine the amount of stock A is treated as purchasing under the options. A is treated as owning 51 percent of the D stock and 51 percent of the C stock that is disqualified stock, and the distribution is a disqualified distribution under section 355(d)(2).

D has 1,000 shares of common stock outstanding. A group of 20 unrelated individuals who previously owned no D stock (the Group) agree among themselves to acquire 50 percent or more of D's stock. The Group is not a person under section 7701(a)(1). Subsequently, pursuant to their understanding, the members of the Group purchase 600 shares of D common stock from the existing D shareholders (a total of 60 percent of the D stock), with each member purchasing 30 shares. Under paragraph (c)(4)(ii) of this section, the members of the Group have a formal or informal understanding among themselves to make a coordinated acquisition of stock. Their interests are therefore aggregated under section 355(d)(7)(B), and they are treated as one person that purchased 600 shares of D's stock for purposes of section 355(d).

D has 1,000 shares of outstanding stock owned by unrelated individuals. D's management is concerned that D may become subject to a takeover bid. In separate meetings, D's management meets with potential investors who own no stock and are friendly to management to convince them to acquire D's stock based on an understanding that D will assemble a group that in the aggregate will acquire more than 50 percent of D's stock. Subsequently, 15 of these investors each purchases four percent of D's outstanding stock. Under paragraph (c)(4)(ii) of this section, the 15 investors have a formal or informal understanding among themselves to make a coordinated acquisition of stock. Their interests are therefore aggregated under section 355(d)(7)(B), and they are treated as one person that purchased 600 shares of D stock for purposes of section 355(d).

(i) D has 1,000 shares of outstanding stock owned by unrelated individuals. An investment advisor advises its clients that it believes D's stock is undervalued and recommends that they acquire D stock. Acting on the investment advisor's recommendation, 20 unrelated individuals each purchases 30 shares of the outstanding D stock. Each client's decision was not based on the investment decisions made by one or more other clients. Because there is no formal or informal understanding among the clients to make a coordinated acquisition of D stock, their interests are not aggregated under section 355(d)(7)(B) and they are treated as making separate purchases.

(ii) The facts are the same as in paragraph (i) of this Example 3, except that the investment advisor is also the underwriter (without regard to whether it is a firm commitment or best efforts underwriting) for a primary or secondary offering of D stock. The result is the same.

(iii) The facts are the same as in paragraph (i) of this Example 3, except that, instead of an investment advisor recommending that clients purchase D stock, the trustee of several trusts qualified under section 401(a) sponsored by unrelated corporations causes each trust to purchase the D stock. The result is the same, provided that the trustee's investment decision made on behalf of each trust was not based on the investment decision made on behalf of one or more of the other trusts.

A, who owns all of the stock of P and T, sells the T stock to P for cash. The T stock is not marketable stock under section 355(d)(5)(B)(ii) and paragraph (d)(3)(ii) of this section. A is treated under section 304(a)(1) as receiving a distribution in redemption of the P stock. Under section 302(d), the deemed redemption is treated as a section 301 distribution. Assume that under sections 304(b)(2) and 301(c)(1), all of the distribution is a dividend. A and P are treated in the same manner as if A had transferred the T stock to P in exchange for stock of P in a transaction to which section 351(a) applies, and P had then redeemed the stock P was treated as issuing in the transaction. Under section 362(a), P's basis in the T stock is determined by reference to A's adjusted basis in the T stock, and there is no basis increase in the T stock because A recognizes no gain on the deemed transfer. Accordingly, P's acquisition of the T stock from A is not a purchase by P under section 355(d)(5)(A)(i)(I) and paragraphs (d)(1)(i)(A)(1) and (d)(2)(i)(B) of this section.

Forward triangular reorganization. P forms S with $25 of cash and T merges into S in a reorganization qualifying under section 368(a)(1)(A) by reason of section 368(a)(2)(D) in which the T shareholders receive $70 of P stock and $15 of cash in exchange for their T stock. T is not a common parent of a consolidated group of corporations. The remaining $10 of cash with which P formed S will not be used in the acquired business. T's assets consist only of assets part of and used in its business with a value of $80, and $5 of cash that is not part of or used in T's business. T has no liabilities. S will use T's business assets in T's business (which will become S's business), but will invest the $5 of cash in an unrelated passive investment. Under paragraph (d)(4)(ii) of this section, P is treated as acquiring the T assets in a transaction in which P's basis in the T assets was determined under section 362(b) and contributing them to S in a section 351 transfer. Under paragraph (d)(3)(v) of this section, $10 (of the total $25) of cash contributed by P to S upon S's formation is not treated as a purchase of S stock. The $15 (of the total $25) of cash contributed by P to S upon S's formation that is paid to T's shareholders is not treated as a purchase of S stock. The exception in paragraph (d)(3)(v) of this section does not apply to the $5 of cash from T's business because P is treated as having acquired T's assets in a related transaction in which section 362(b) applies to determine P's basis in such assets. Accordingly, P is treated under section 355(d)(5)(B) and paragraph (d)(3)(iv) of this section as having purchased $5 of the S stock, but is not deemed to have purchased the remaining $80 of the S stock.

(i) A purchases 60 percent of the stock of D on Date 1. D owns no cash items, marketable stock, or transferor debt, but holds cash that is not part of or used in D's trade or business under paragraph (d)(3)(iv) of this section and that represents 20 percent of D's value. On Date 2, P forms S, and S merges into D in a reorganization qualifying under section 368(a)(1)(B) and under section 368(a)(1)(A) by reason of section 368(a)(2)(E). In the reorganization, P acquires all of the D stock in exchange solely for P stock. After Date 2, and within five years after Date 1, D distributes its wholly owned subsidiary C to P. P does not obtain a letter ruling and enter into a closing agreement under paragraph (d)(5)(ii) of this section. P would acquire 20 percent of the D stock by purchase on Date 2 under paragraph (d)(5)(i)(A) of this section by operation of section 355(d)(5)(B) and paragraph (d)(3)(iv) of this section. The exception in paragraph (d)(3)(v) of this section does not apply because D was not affiliated with P before the transaction in which the section 351 transfer is deemed to occur and D's assets are treated as acquired by P in a related transaction in which section 362(b) applies to determine P's basis in the D assets. P would acquire 60 percent of the D stock by purchase on Date 1 under paragraph (d)(5)(i)(B) of this section because, under the transferred basis rule of section 355(d)(5)(C) and paragraph (e)(2) of this section, P is treated as though P purchased the D stock on the date A purchased it. Accordingly, under paragraph (d)(5)(i) of this section, P is treated as acquiring the higher amount (60 percent) by purchase on Date 1. D's distribution of C to P is a disqualified distribution under section 355(d)(2) and paragraph (b)(1) of this section. In addition, A is treated as acquiring the P stock by purchase on Date 1 under paragraph (e)(3) of this section because A's basis in the P stock is determined by reference to A's basis in the D stock.

(ii) The facts are the same as in paragraph (i) of this Example, except that P obtains a letter ruling and enters into a closing agreement under which it agrees to determine its basis in the D stock under § 1.358-6(c)(2)(ii)(A). Under paragraph (d)(5)(ii) of this section, section 355(d)(5)(B) (and paragraphs (d)(3)(i) through (iv) of this section) applies, and section 355(d)(5)(C) (and paragraph (e)(2) of this section) does not apply. Accordingly, P is treated as acquiring only 20 percent of the D stock by purchase on Date 2. D's distribution of C to P is not a disqualified distribution under section 355(d)(2) and paragraph (b)(1) of this section.

P is the common parent of a consolidated group, and T is the common parent of another group. P has owned S for more than five years, and the fair market value of the S stock is $50. T's assets consist only of non-marketable stock of direct and indirect wholly owned subsidiaries with a value of $50, assets used in its business with a value of $50, and $50 of marketable stock that is not part of or used in T's business. T has no liabilities. T merges into S with the T shareholders receiving solely P stock with a value of $150 in exchange for their T stock in a section 368(a)(2)(D) reorganization. S will use T's business assets in T's business (which will become S's business), but will hold the $50 of marketable stock for investment purposes. Assume that the transaction is a reverse acquisition under § 1.1502-75(d)(3) because the T shareholders, as a result of owning T stock, own more than 50 percent of the value of P's stock immediately after the transaction. Thus, the transaction is a group structure change under § 1.1502-33(f)(1). Under paragraph (d)(6) of this section, P is treated as having acquired the assets of T in a transaction in which P's basis in the T assets was determined under section 362(b), and then transferred the acquired assets to S in a section 351 transfer, with P and T being treated as not in the same affiliated group at the time of the transfer solely for purposes of paragraph (d)(3)(v) of this section. The exception in paragraph (d)(3)(v) of this section (transfers within an affiliated group) does not apply. Accordingly, P is treated under section 355(d)(5)(B) and paragraph (d)(3)(iv) of this section as having purchased $50 of the S stock (attributable to the marketable stock), but is not deemed to have purchased the remaining $150 of the S stock.

On Date 1, A purchases 10 percent of the stock of P, which has held 100 percent of the stock of T for more than five years at the time of A's purchase. A is deemed to have purchased 10 percent of P's T stock on Date 1. If A later purchases an additional 41 percent of the stock of P on Date 2, A is deemed to have purchased an additional 41 percent of P's T stock on Date 2. Because A and P are now related persons under section 267(b), they are treated as one person under section 355(d)(7)(A), and A is treated as owning all of P's T stock. A is treated as acquiring 51 percent of the T stock by purchase at the times of A's respective purchases of P stock on Date 1 and Date 2. The remaining 49 percent of T stock is treated as acquired when P acquired the T stock, more than five years before Date 1. If P distributes T after Date 2 and within five years after Date 1, the distribution will be a disqualified distribution under section 355(d)(2) and paragraph (b)(1) of this section.

A has owned 60 percent of the stock of P for more than five years, and P has owned 40 percent of the stock of T for more than five years. A and P are treated as one person, and A is treated as owning 40 percent of the stock of T for more than five years. If P later purchases an additional 20 percent of the stock of T on Date 1, A is treated as acquiring by purchase the additional 20 percent of T stock on Date 1. If A then purchases an additional 10 percent of the stock of P on Date 2, under paragraph (e)(1)(i) of this section, A is deemed to have purchased on Date 2 an additional four percent of the T stock (10 percent of the 40 percent that P originally owned). In addition, even though A and P were already treated as one person under section 355(d)(7)(A), A also is deemed to have purchased two percent of the T stock on Date 2 (10 percent of the 20 percent of the T stock that it was treated as purchasing on Date 1). A is still treated as owning all 60 percent of the T stock owned by P. However, of the 60 percent, A is treated as having purchased 18 percent of the T stock on Date 1 and 6 percent of the T stock on Date 2, for a total of 24 percent purchased stock.

A purchases a 20 percent interest in partnership M on Date 1. M has owned 30 percent of the stock and 25 percent of the securities of P for more than five years. P has owned 40 percent of the stock and 100 percent of the securities of T for more than five years. Under section 318(a)(2)(C) as modified by section 355(d)(8)(A), M is deemed to own 12 percent of the stock (30 percent of the 40 percent P owns) and 30 percent of the securities (30 percent of the 100 percent P owns) of T. Under sections 318(a)(2)(A) and 355(d)(8)(B), A is deemed to have purchased 2.4 percent of the stock (20 percent of the 12 percent M is deemed to own) and 6 percent of the securities (20 percent of the 30 percent M is deemed to own) of T on Date 1. Similarly, A is deemed to have purchased 6 percent of the stock (20 percent of the 30 percent M owns) and five percent of the securities (20 percent of the 25 percent M owns) of P on Date 1. If M later purchases an additional 10 percent of P stock on Date 2, M is deemed to have purchased four percent of the stock (10 percent of the 40 percent P owns) and 10 percent of the securities (10 percent of the 100 percent P owns) of T on Date 2. A is deemed to have purchased two percent of the stock of P on Date 2 (20 percent of the 10 percent M purchased). A is also deemed to have purchased 0.8 percent of the stock (20 percent of the four percent M is deemed to have purchased) and two percent of the securities (20 percent of the 10 percent M is deemed to have purchased) of T on Date 2.

A and B are brother and sister. For more than five years, A has owned 75 percent of the stock of P, and B has owned 25 percent of the stock of P. A and B are treated as one person under section 267(b), and the stock of each is treated as purchased on the date it was purchased by A and B, respectively. If B later purchases 50 percent of the P stock from A on Date 1, A and B are still treated as one person. However, under paragraph (e)(3)(iii) of this section, the 50 percent of P stock that B purchased from A is treated as purchased on Date 1.

A purchases 50 percent of the stock of T on Date 1. On Date 2, T merges into D in a section 368(a)(1)(A) reorganization, with A exchanging all of the T stock solely for stock of D. Under section 358(a), A's basis in the D stock is determined by reference to the basis of the T stock it purchased. Accordingly, A is treated as having purchased the D stock on Date 1, and has a purchased basis in the D stock under paragraph (b)(3)(iii) of this section.