(a) In general—(1) Application. This section prescribes rules for allocating interest expense for purposes of applying sections 469 (the “passive loss limitation”) and 163 (d) and (h) (the “nonbusiness interest limitations”).

(2) Cross-references. This paragraph provides an overview of the manner in which interest expense is allocated for the purposes of applying the passive loss limitation and nonbusiness interest limitations and the manner in which interest expense allocated under this section is treated. See paragraph (b) of this section for definitions of certain terms, paragraph (c) for the rules for allocating debt and interest expense among expenditures, paragraphs (d) and (e) for the treatment of debt repayments and refinancings, paragraph (j) for the rules for reallocating debt upon the occurrence of certain events, paragraph (m) for the coordination of the rules in this section with other limitations on the deductibility of interest expense, and paragraph (n) of this section for effective date and transitional rules.

(3) Manner of allocation. In general, interest expense on a debt is allocated in the same manner as the debt to which such interest expense relates is allocated. Debt is allocated by tracing disbursements of the debt proceeds to specific expenditures. This section prescribes rules for tracing debt proceeds to specific expenditures.

(4) Treatment of interest expenses—(i) General rule. Except as otherwise provided in paragraph (m) of this section (relating to limitations on interest expense other than the passive loss and nonbusiness interest limitations), interest expense allocated under the rules of this section is treated in the following manner:

(A) Interest expense allocated to a trade or business expenditure (as defined in paragraph (b)(7) of this section) is taken into account under section 163 (h)(2)(A);

(B) Interest expense allocated to a passive activity expenditure (as defined in paragraph (b)(4) of this section) or a former passive activity expenditure (as defined in paragraph (b)(2) of this section) is taken into account for purposes of section 469 in determining the income or loss from the activity to which such expenditure relates;

(C) Interest expense allocated to an investment expenditure (as defined in paragraph (b)(3) of this section) is treated for purposes of section 163(d) as investment interest;

(D) Interest expense allocated to a personal expenditure (as defined in paragraph (b)(5) of this section) is treated for purposes of section 163(h) as personal interest; and

(E) Interest expense allocated to a portfolio expenditure (as defined in paragraph (b)(6) of this section) is treated for purposes of section 469(e)(2)(B)(ii) as interest expense described in section 469(e)(1)(A)(i)(III).

(ii) Examples. The following examples illustrate the application of this paragraph (a)(4):

(b) Definitions. For purposes of this section—

(1) “Former passive activity” means an activity described in section 469(f)(3), but only if an unused deduction or credit (within the meaning of section 469(f)(1) (A) or (B)) is allocable to the activity under section 469(b) for the taxable year.

(2) “Former passive activity expenditure” means an expenditure that is taken into account under section 469 in computing the income or loss from a former passive activity of the taxpayer or an expenditure (including an expenditure properly chargeable to capital account) that would be so taken into account if such expenditure were otherwise deductible.

(3) “Investment expenditure” means an expenditure (other than a passive activity expenditure) properly chargeable to capital account with respect to property held for investment (within the meaning of section 163(d)(5)(A)) or an expenditure in connection with the holding of such property.

(4) “Passive activity expenditure” means an expenditure that is taken into account under section 469 in computing income or loss from a passive activity of the taxpayer or an expenditure (including an expenditure properly chargeable to capital account) that would be so taken into account if such expenditure were otherwise deductible. For purposes of this section, the term “passive activity expenditure” does not include any expenditure with respect to any low-income housing project in any taxable year in which any benefit is allowed with respect to such project under section 502 of the Tax Reform Act of 1986.

(5) “Personal expenditure” means an expenditure that is not a trade or business expenditure, a passive activity expenditure, or an investment expenditure.

(6) “Portfolio expenditure” means an investment expenditure properly chargeable to capital account with respect to property producing income of a type described in section 469(e)(1)(A) or an investment expenditure for an expense clearly and directly allocable to such income.

(7) “Trade or business expenditure” means an expenditure (other than a passive activity expenditure or an investment expenditure) in connection with the conduct of any trade or business other than the trade or business of performing services as an employee.

(c) Allocation of debt and interest expense—(1) Allocation in accordance with use of proceeds. Debt is allocated to expenditures in accordance with the use of the debt proceeds and, except as provided in paragraph (m) of this section, interest expense accruing on a debt during any period is allocated to expenditures in the same manner as the debt is allocated from time to time during such period. Except as provided in paragraph (m) of this section, debt proceeds and related interest expense are allocated solely by reference to the use of such proceeds, and the allocation is not affected by the use of an interest in any property to secure the repayment of such debt or interest. The following example illustrates the principles of this paragraph (c)(1):

(2) Allocation period—(i) Allocation of debt. Debt is allocated to an expenditure for the period beginning on the date the proceeds of the debt are used or treated as used under the rules of this section to make the expenditure and ending on the earlier of—

(A) The date the debt is repaid; or

(B) The date the debt is reallocated in accordance with the rules in paragraphs (c)(4) and (j) of this section.

(ii) Allocation of interest expense—(A) In general. Except as otherwise provided in paragraph (m) of this section, interest expense accruing on a debt for any period is allocated in the same manner as the debt is allocated from time to time, regardless of when the interest is paid.

(B) Effect of compounding. Accrued interest is treated as a debt until it is paid and any interest accruing on unpaid interest is allocated in the same manner as the unpaid interest is allocated. For the taxable year in which a debt is reallocated under the rules in paragraphs (c)(4) and (j) of this section, however, compound interest accruing on such debt (other than compound interest accruing on interest that accrued before the beginning of the year) may be allocated between the original expenditure and the new expenditure on a straight-line basis (i.e., by allocating an equal amount of such interest expense to each day during the taxable year). In addition, a taxpayer may treat a year as consisting of 12 30-day months for purposes of allocating interest on a straight-line basis.

(C) Accrual of interest expense. For purposes of this paragraph (c)(2)(ii), the amount of interest expense that accrues during any period is determined by taking into account relevant provisions of the loan agreement and any applicable law such as sections 163(e), 483, and 1271 through 1275.

(iii) Examples. The following examples illustrate the principles of this paragraph (c)(2):

(3) Allocation of debt; proceeds not disbursed to borrower—(i) Third-party financing. If a lender disburses debt proceeds to a person other than the borrower in consideration for the sale or use of property, for services, or for any other purpose, the debt is treated for purposes of this section as if the borrower used an amount of the debt proceeds equal to such disbursement to make an expenditure for such property, services, or other purpose.

(ii) Debt assumptions not involving cash disbursements. If a taxpayer incurs or assumes a debt in consideration for the sale or use of property, for services, or for any other purpose, or takes property subject to a debt, and no debt proceeds are disbursed to the taxpayer, the debt is treated for purposes of this section as if the taxpayer used an amount of the debt proceeds equal to the balance of the debt outstanding at such time to make an expenditure for such property, services, or other purpose.

(4) Allocation of debt; proceeds deposited in borrower's account—(i) Treatment of deposit. For purposes of this section, a deposit of debt proceeds in an account is treated as an investment expenditure, and amounts held in an account (whether or not interest bearing) are treated as property held for investment. Debt allocated to an account under this paragraph (c)(4)(i) must be reallocated as required by paragraph (j) of this section whenever debt proceeds held in the account are used for another expenditure. This paragraph (c)(4) provides rules for determining when debt proceeds are expended from the account. The following example illustrates the principles of this paragraph (c)(4)(i):

(ii) Expenditures from account; general ordering rule. Except as provided in paragraph (c)(4)(iii) (B) or (C) of this section, debt proceeds deposited in an account are treated as expended before—

(A) Any unborrowed amounts held in the account at the time such debt proceeds are deposited; and

(B) Any amounts (borrowed or unborrowed) that are deposited in the account after such debt proceeds are deposited.

The following example illustrates the application of this paragraph (c)(4)(ii):

(iii) Expenditures from account; supplemental ordering rules—(A) Checking or similar accounts. Except as otherwise provided in this paragraph (c)(4)(iii), an expenditure from a checking or similar account is treated as made at the time the check is written on the account, provided the check is delivered or mailed to the payee within a reasonable period after the writing of the check. For this purpose, the taxpayer may treat checks written on the same day as written in any order. In the absence of evidence to the contrary, a check is presumed to be written on the date appearing on the check and to be delivered or mailed to the payee within a reasonable period thereafter. Evidence to the contrary may include the fact that a check does not clear within a reasonable period after the date appearing on the check.

(B) Expenditures within 15 days after deposit of borrowed funds. The taxpayer may treat any expenditure made from an account within 15 days after debt proceeds are deposited in such account as made from such proceeds to the extent thereof even if under paragraph (c)(4)(ii) of this section the debt proceeds would be treated as used to make one or more other expenditures. Any such expenditures and the debt proceeds from which such expenditures are treated as made are disregarded in applying paragraph (c)(4)(ii) of this section. The following examples illustrate the application of this paragraph (c)(4)(iii)(B):

(C) Interest on segregated account. In the case of an account consisting solely of the proceeds of a debt and interest earned on such account, the taxpayer may treat any expenditure from such account as made first from amounts constituting interest (rather than debt proceeds) to the extent of the balance of such interest in the account at the time of the expenditure, determined by applying the rules in this paragraph (c)(4). To the extent any expenditure is treated as made from interest under this paragraph (c)(4)(iii)(C), the expenditure is disregarded in applying paragraph (c)(4)(ii) of this section.

(iv) Optional method for determining date of reallocation. Solely for the purpose of determining the date on which debt allocated to an account under paragraph (c)(4)(i) of this section is reallocated, the taxpayer may treat all expenditures made during any calendar month from debt proceeds in the account as occurring on the later of the first day of such month or the date on which such debt proceeds are deposited in the account. This paragraph (c)(4)(iv) applies only if all expenditures from an account during the same calendar month are similarly treated. The following example illustrates the application of this paragraph (c)(4)(iv):

(v) Simultaneous deposits—(A) In general. If the proceeds of two or more debts are deposited in an account simultaneously, such proceeds are treated for purposes of this paragraph (c)(4) as deposited in the order in which the debts were incurred.

(B) Order in which debts incurred. If two or more debts are incurred simultaneously or are treated under applicable law as incurred simultaneously, the debts are treated for purposes of this paragraph (c)(4)(v) as incurred in any order the taxpayer selects.

(C) Borrowings on which interest accrues at different rates. If interest does not accrue at the same fixed or variable rate on the entire amount of a borrowing, each portion of the borrowing on which interest accrues at a different fixed or variable rate is treated as a separate debt for purposes of this paragraph (c)(4)(v).

(vi) Multiple accounts. The rules in this paragraph (c)(4) apply separately to each account of a taxpayer.

(5) Allocation of debt; proceeds received in cash—(i) Expenditure within 15 days of receiving debt proceeds. If a taxpayer receives the proceeds of a debt in cash, the taxpayer may treat any cash expenditure made within 15 days after receiving the cash as made from such debt proceeds to the extent thereof and may treat such expenditure as made on the date the taxpayer received the cash. The following example illustrates the rule in this paragraph (c)(5)(i):

(ii) Other expenditures. Except as provided in paragraphs (c)(5) (i) and (iii) of this section, any debt proceeds a taxpayer (other than a corporation) receives in cash are treated as used to make personal expenditures. For purposes of this paragraph (c)(5), debt proceeds are received in cash if, for example, a withdrawal of cash from an account is treated under the rules of this section as an expenditure of debt proceeds.

(iii) Special rules for certain taxpayers. [Reserved]

(6) Special rules—(i) Qualified residence debt. [Reserved]

(ii) Debt used to pay interest. To the extent proceeds of a debt are used to pay interest, such debt is allocated in the same manner as the debt on which such interest accrued is allocated from time to time. The following example illustrates the application of this paragraph (c)(6)(ii):

(iii) Debt used to pay borrowing costs—(A) Borrowing costs with respect to different debt. To the extent the proceeds of a debt (the “ancillary debt”) are used to pay borrowing costs (other than interest) with respect to another debt (the “primary debt”), the ancillary debt is allocated in the same manner as the primary debt is allocated from time to time. To the extent the primary debt is repaid, the ancillary debt will continue to be allocated in the same manner as the primary debt was allocated immediately before its repayment. The following example illustrates the rule in this paragraph (c)(6)(iii)(A):

(B) Borrowing costs with respect to same debt. To the extent the proceeds of a debt are used to pay borrowing costs (other than interest) with respect to such debt, such debt is allocated in the same manner as the remaining debt is allocated from time to time. The remaining debt for this purpose is the portion of the debt that is not used to pay borrowing costs (other than interst) with respect to such debt. Any repayment of the debt is treated as a repayment of the debt allocated under this paragraph (c)(6)(iii)(B) and the remaining debt is the same proportion as such amount bear to each other. The following example illustrates the application of this paragraph (c)(6)(iii)(B):

(iv) Allocation of debt before actual receipt of debt proceeds. If interest properly accrues on a debt during any period before the debt proceeds are actually received or used to make an expenditure, the debt is allocated to an investment expenditure for such period.

(7) Antiabuse rules. [Reserved]

(d) Debt repayments—(1) General ordering rule. If, at the time any portion of a debt is repaid, such debt is allocated to more than one expenditure, the debt is treated for purposes of this section as repaid in the following order:

(i) Amounts allocated to personal expenditures;

(ii) Amounts allocated to investment expenditures and passive activity expenditures (other than passive activity expenditures described in paragraph (d)(1)(iii) of this section);

(iii) Amounts allocated to passive activity expenditures in connection with a rental real estate activity with respect to which the taxpayer actively participates (within the meaning of section 469(i));

(iv) Amounts allocated to former passive activity expenditures; and

(v) Amounts allocated to trade or business expenditures and to expenditures described in the last sentence of paragraph (b)(4) of this section.

(2) Supplemental ordering rules for expenditures in same class. Amounts allocated to two or more expenditures that are described in the subdivision of paragraph (d)(1) of this section (e.g., amounts allocated to different personal expenditures) are treated as repaid in the order in which the amounts were allocated (or reallocated) to such expenditures. For purposes of this paragraph (d)(2), the taxpayer may treat allocations and reallocations that occur on the same day as occurring in any order (without regard to the order in which expenditures are treated as made under paragraph (c)(4)(iii)(A) of this section).

(3) Continuous borrowings. In the case of borrowings pursuant to a line of credit or similar account or arrangement that allows a taxpayer to borrow funds periodically under a single loan agreement—

(i) All borrowings on which interest accrues at the same fixed or variable rate are treated as a single debt; and

(ii) Borrowings or portions of borrowings on which interest accrues at different fixed or variable rates are treated as different debts, and such debts are treated as repaid for purposes of this paragraph (d) in the order in which such borrowings are treated as repaid under the loan agreement.

(4) Examples. The following examples illustrate the application of this paragraph (d):

(e) Debt refinancings—(1) In general. To the extent proceeds of any debt (the “replacement debt”) are used to repay any portion of a debt, the replacement debt is allocated to the expenditures to which the repaid debt was allocated. The amount of replacement debt allocated to any such expenditure is equal to the amount of debt allocated to such expenditure that was repaid with proceeds of the replacement debt. To the extent proceeds of the replacement debt are used for expenditures other than repayment of a debt, the replacement debt is allocated to expenditures in accordance with the rules of this section.

(2) Example. The following example illustrates the application of this paragraph (e):

(f) Debt allocated to distributions by passthrough entities. [Reserved]

(g) Repayment of passthrough entity debt. [Reserved]

(h) Debt allocated to expenditures for interests in passthrough entities. [Reserved]

(i) Allocation of debt to loans between passthrough entities and interest holders. [Reserved]

(j) Reallocation of debt—(1) Debt allocated to capital expenditures—(i) Time of reallocation. Except as provided in paragraph (j)(2) of this section, debt allocated to an expenditure properly chargeable to capital account with respect to an asset (the “first expenditure”) is reallocated to another expenditure on the earlier of—

(A) The date on which proceeds from a disposition of such asset are used for another expenditure; or

(B) The date on which the character of the first expenditure changes (e.g., from a passive activity expenditure to an expenditure that is not a passive activity expenditure) by reason of a change in the use of the asset with respect to which the first expenditure was capitalized.

(ii) Limitation on amount reallocated. The amount of debt reallocated under paragraph (j)(1)(i)(A) of this section may not exceed the proceeds from the disposition of the asset. The amount of debt reallocated under paragraph (j)(1)(i)(B) of this section may not exceed the fair market value of the asset on the date of the change in use. In applying this paragraph (j)(1)(ii) with respect to a debt in any case in which two or more debts are allocable to expenditures properly chargeable to capital account with respect to the same asset, only a ratable portion (determined with respect to any such debt by dividing the amount of such debt by the aggregate amount of all such debts) of the fair market value or proceeds from the disposition of such asset shall be taken into account.

(iii) Treatment of loans made by the taxpayer. Except as provided in paragraph (j)(1)(iv) of this section, an expenditure to make a loan is treated as an expenditure properly chargeable to capital account with respect to an asset, and for purposes of paragraph (j)(1)(i)(A) of this section any repayment of the loan is treated as a disposition of the asset. Paragraph (j)(3) of this section applies to any repayment of a loan in installments.

(iv) Treatment of accounts. Debt allocated to an account under paragraph (c)(4)(i) of this section is treated as allocated to an expenditure properly chargeable to capital account with respect to an asset, and any expenditure from the account is treated as a disposition of the asset. See paragraph (c)(4) of this section for rules under which debt proceeds allocated to an account are treated as used for another expenditure.

(2) Disposition proceeds in excess of debt. If the proceeds from the disposition of an asset exceed the amount of debt reallocated by reason of such disposition, or two or more debts are reallocated by reason of the disposition of an asset, the proceeds of the disposition are treated as an account to which the rules in paragraph (c)(4) of this section apply.

(3) Special rule for deferred payment sales. If any portion of the proceeds of a disposition of an asset are received subsequent to the disposition—

(i) The portion of the proceeds to be received subsequent to the disposition is treated for periods prior to the receipt as used to make an investment expenditure; and

(ii) Debt reallocated by reason of the disposition is allocated to such investment expenditure to the extent such debt exceeds the proceeds of the disposition previously received (other than proceeds used to repay such debt).

(4) Examples. The following examples illustrate the application of this paragraph (j):

(k) Modification of rules in the case of interest expense allocated to foreign source income. [Reserved]

(l) [Reserved]

(m) Coordination with other provisions—(1) Effect of other limitations—(i) In general. All debt is allocated among expenditures pursuant to the rules in this section, without regard to any limitations on the deductibility of interest expense on such debt. The applicability of the passive loss and nonbusiness interest limitations to interest on such debt, however, may be affected by other limitations on the deductibility of interest expense.

(ii) Disallowance provisions. (Interest expense that is not allowable as a deduction by reason of a disallowance provision (within the meaning of paragraph (m)(7)(ii) of this section) is not taken into account for any taxable year for purposes of applying the passive loss and nonbusiness interest limitations.

(iii) Deferral provisions. Interest expense that is not allowable as a deduction for the taxable year in which paid or accrued by reason of a deferral provision (within the meaning of paragraph (m)(7)(iii) of this section) is allocated in the same manner as the debt giving rise to the interest expense is allocated for such taxable year. Such interest expense is taken into account for purposes of applying the passive loss and nonbusiness interest limitations for the taxable year in which such interest expense is allowable under such deferral provision.

(iv) Capitalization provisions. Interest expense that is capitalized pursuant to a capitalization provision (within the meaning of paragraph (m)(7)(i) of this section) is not taken into account as interest for any taxable year for purposes of applying the passive loss and nonbusiness interest limitations.

(2) Effect on other limitations—(i) General rule. Except as provided in paragraph (m)(2)(ii) of this section, any limitation on the deductibility of an item (other than the passive loss and nonbusiness interest limitations) applies without regard to the manner in which debt is allocated under this section. Thus, for example, interest expense treated under section 265(a)(2) as interest on indebtedness incurred or continued to purchase or carry obligations the interest on which is wholly exempt from Federal income tax is not deductible regardless of the expenditure to which the underlying debt is allocated under this section.

(ii) Exception. Capitalization provisions (within the meaning of paragraph (m)(7)(i) of this section) do not apply to interest expense allocated to any personal expenditure under the rules of this section.

(3) Qualified residence interest. Qualified residence interest (within the meaning of section 163(h)(3)) is allowable as a deduction without regard to the manner in which such interest expense is allocated under the rules of this section. In addition, qualified residence interest is not taken into account in determining the income or loss from any activity for purposes of section 469 or in determining the amount of investment interest for purposes of section 163(d). The following example illustrates the rule in this paragraph (m)(3):

(4) Interest described in section 163(h)(2)(E). Interest described in section 163(h)(2)(E) is allowable as a deduction without regard to the rules of this section.

(5) Interest on deemed distributee debt. [Reserved]

(6) Examples. The following examples illustrate the relationship between the passive loss and nonbusiness interest limitations and other limitations on the deductibility of interest expense:

(7) Other limitations on interest expense—(i) Capitalization provisions. A capitalization provision is any provision that requires or allows interest expense to be capitalized. Capitalization provisions include sections 263(g), 263A(f), and 266.

(ii) Disallowance provisions. A disallowance provision is any provision (other than the passive loss and nonbusiness interest limitations) that disallows a deduction for interest expense for all taxable years and is not a capitalization provision. Disallowance provisions include sections 163(f)(2), 264(a)(2), 264(a)(4), 265(a)(2), 265(b)(2), 279(a), 291(e)(1)(B)(ii), 805(b)(1), and 834(c)(5).

(iii) Deferral provisions. A deferral provision is any provision (other than the passive loss and nonbusiness interest limitations) that disallows a deduction for interest expense for any taxable year and is not a capitalization or disallowance provision. Deferral provisions include sections 267(a)(2), 465, 1277, and 1282.

(n) Effective date—(1) In general. This section applies to interest expense paid or accrued in taxable years beginning after December 31, 1986.

(2) Transitional rule for certain expenditures. For purposes of determining whether debt is allocated to expenditures made on or before August 3, 1987, paragraphs (c)(4)(iii)(B) and (c)(5)(i) of this section are applied by substituting “90 days” for “15 days.”

(3) Transitional rule for certain debt—(i) General rule. Except as provided in paragraph (n)(3)(ii) of this section, any debt outstanding on December 31, 1986, that is properly attributable to a business or rental activity is treated for purposes of this section as debt allocated to expenditures properly chargeable to capital account with respect to the assets held for use or for sale to customers in such business or rental activity. Debt is properly attributable to a business or rental activity for purposes of this section (regardless of whether such debt otherwise would be allocable under this section to expenditures in connection with such activity) if the taxpayer has properly and consistently deducted interest expense (including interest subject to limitation under section 163(d) as in effect prior to the Tax Reform Act of 1986) on such debt on Schedule C, E, or F of Form 1040 in computing income or loss from such business or rental activity for taxable years beginning before January 1, 1987. For purposes of this paragraph (n)(3), amended returns filed after July 2, 1987 are disregarded in determining whether a taxpayer has consistently deducted interest expense on Schedule C, E, or F of Form 1040 in computing income or loss from a business or rental activity.

(ii) Exceptions—(A) Debt financed distributions by passthrough entities. [Reserved]

(B) Election out. This paragraph (n)(3) does not apply with respect to debt of a taxpayer who elects under paragraph (n)(3) (viii) of this section to allocate debt outstanding on December 31, 1986, in accordance with the provisions of this section other than this paragraph (n)(3) (i.e., in accordance with the use of the debt proceeds).

(iii) Business or rental activity. For purposes of this paragraph (n)(3), a business or rental activity is any trade or business or rental activity of the taxpayer. For this purpose—

(A) A trade or business includes a business or profession the income and deductions of which (or, in the case of a partner or S corporation shareholder, the taxpayer's share thereof) are properly reported on Schedule C, E, or F of Form 1040; and

(B) A rental activity includes an activity of renting property the income and deductions of which (or, in the case of a partner or S corporation shareholder, the taxpayer's share thereof) are properly reported on Schedule E of Form 1040.

(iv) Example. The following example illustrates the circumstances in which debt is properly attributable to a business or rental activity:

(v) Allocation requirement—(A) In general. Debt outstanding on December 31, 1986, that is properly attributable (within the meaning of paragraph (n)(3)(i) of this section) to a business or rental activity must be allocated in a reasonable and consistent manner among the assets held for use or for sale to customers in such activity on the last day of the taxable year that includes December 31, 1986. The taxpayer shall specify the manner in which such debt is allocated by filing a statement in accordance with paragraph (n)(3)(vii) of this section. If the taxpayer does not file such a statement or fails to allocate such debt in a reasonable and consistent manner, the Commissioner shall allocate the debt.

(B) Reasonable and consistent manner—examples of improper allocation. For purposes of this paragraph (n)(3)(v), debt is not treated as allocated in a reasonable and consistent manner if—

(1) The amount of debt allocated to goodwill exceeds the basis of the goodwill; or

(2) The amount of debt allocated to an asset exceeds the fair market value of the asset, and the amount of debt allocated to any other asset is less than the fair market value (lesser of basis or fair market value in the case of goodwill) of such other asset.

(vi) Coordination with other provisions. The effect of any events occurring after the last day of the taxable year that includes December 31, 1986, shall be determined under the rules of this section, applied by treating the debt allocated to an asset under paragraph (n)(3)(v) of this section as if proceeds of such debt were used to make an expenditure properly chargeable to capital account with respect to such asset on the last day of the taxable year that includes December 31, 1986. Thus, debt that is allocated to an asset in accordance with this paragraph (n)(3) must be reallocated in accordance with paragraph (j) of this section upon the occurrence with respect to such asset of any event described in such paragraph (j). Similarly, such debt is treated as repaid in the order prescribed in paragraph (d) of this section. In addition, a replacement debt (within the meaning of paragraph (e) of this section) is allocated to an expenditure properly chargeable to capital account with respect to an asset to the extent the proceeds of such debt are used to repay the portion of a debt allocated to such asset under this paragraph (n)(3).

(vii) Form for allocation of debt. A taxpayer shall allocate debt for purposes of this paragraph (n)(3) by attaching to the taxpayer's return for the first taxable year beginning after December 31, 1986, a statement that is prominently identified as a transitional allocation statement under §1.163-8T(n)(3) and includes the following information:

(A) A description of the business or rental activity to which the debt is properly attributable;

(B) The amount of debt allocated;

(C) The assets among which the debt is allocated;

(D) The manner in which the debt is allocated;

(E) The amount of debt allocated to each asset; and

(F) Such other information as the Commissioner may require.

(viii) Form for election out. A taxpayer shall elect to allocate debt outstanding on December 31, 1986, in accordance with the provisions of this section other than this paragraph (n)(3) by attaching to the taxpayer's return (or amended return) for the first taxable year beginning after December 31, 1986, a statement to that effect, prominently identified as as election out under §1.163-8T(n)(3).

(ix) Special rule for partnerships and S corporations. For purposes of paragraph (n)(3)(ii)(B), (v), (vii) and (viii) of this section (relating to the allocation of debt and election out), a partnership or S corporation shall be treated as the taxpayer with respect to the debt of the partnership or S corporation.

(x) Irrevocability. An allocation or election filed in accordance with paragraph (n)(3) (vii) or (viii) of this section may not be revoked or modified except with the consent of the Commissioner.

[T.D. 8145, 52 FR 24999, July 2, 1987, as amended by T.D. 8145, 62 FR 40270, July 28, 1997]