(a) In general. The term disposition of the converted property means the destruction, theft, seizure, requisition, or condemnation of the converted property, or the sale or exchange of such property under threat or imminence of requisition or condemnation.

(b) Conversion into similar property. If property (as a result of its destruction in whole or in part, theft, seizure, or requisition or condemnation or threat or imminence thereof) is compulsorily or involuntarily converted only into property similar or related in service or use to the property so converted, no gain shall be recognized. Such nonrecognition of gain is mandatory.

(c) Conversion into money or into dissimilar property. (1) If property (as a result of its destruction in whole or in part, theft, seizure, or requisition or condemnation or threat or imminence thereof) is compulsorily or involuntarily converted into money or into property not similar or related in service or use to the converted property, the gain, if any, shall be recognized, at the election of the taxpayer, only to the extent that the amount realized upon such conversion exceeds the cost of other property purchased by the taxpayer which is similar or related in service or use to the property so converted, or the cost of stock of a corporation owning such other property which is purchased by the taxpayer in the acquisition of control of such corporation, if the taxpayer purchased such other property, or such stock, for the purpose of replacing the property so converted and during the period specified in subparagraph (3) of this paragraph. For the purposes of section 1033, the term control means the ownership of stock possessing at least 80 percent of the total combined voting power of all classes of stock entitled to vote and at least 80 percent of the total number of shares of all other classes of stock of the corporation.

(2) All of the details in connection with an involuntary conversion of property at a gain (including those relating to the replacement of the converted property, or a decision not to replace, or the expiration of the period for replacement) shall be reported in the return for the taxable year or years in which any of such gain is realized. An election to have such gain recognized only to the extent provided in subparagraph (1) of this paragraph shall be made by including such gain in gross income for such year or years only to such extent. If, at the time of filing such a return, the period within which the converted property must be replaced has expired, or if such an election is not desired, the gain should be included in gross income for such year or years in the regular manner. A failure to so include such gain in gross income in the regular manner shall be deemed to be an election by the taxpayer to have such gain recognized only to the extent provided in subparagraph (1) of this paragraph even though the details in connection with the conversion are not reported in such return. If, after having made an election under section 1033(a)(2), the converted property is not replaced within the required period of time, or replacement is made at a cost lower than was anticipated at the time of the election, or a decision is made not to replace, the tax liability for the year or years for which the election was made shall be recomputed. Such recomputation should be in the form of an amended return. If a decision is made to make an election under section 1033(a)(2) after the filing of the return and the payment of the tax for the year or years in which any of the gain on an involuntary conversion is realized and before the expiration of the period within which the converted property must be replaced, a claim for credit or refund for such year or years should be filed. If the replacement of the converted property occurs in a year or years in which none of the gain on the conversion is realized, all of the details in connection with such replacement shall be reported in the return for such year or years.

(3) The period referred to in subparagraphs (1) and (2) of this paragraph is the period of time commencing with the date of the disposition of the converted property, or the date of the beginning of the threat or imminence of requisition or condemnation of the converted property, whichever is earlier, and ending 2 years (or, in the case of a disposition occurring before December 31, 1969, 1 year) after the close of the first taxable year in which any part of the gain upon the conversion is realized, or at the close of such later date as may be designated pursuant to an application of the taxpayer. Such application shall be made prior to the expiration of 2 years (or, in the case of a disposition occurring before December 31, 1969, 1 year) after the close of the first taxable year in which any part of the gain from the conversion is realized, unless the taxpayer can show to the satisfaction of the district director—

(i) Reasonable cause for not having filed the application within the required period of time, and

(ii) The filing of such application was made within a reasonable time after the expiration of the required period of time. The application shall contain all of the details in connection with the involuntary conversion. Such application shall be made to the district director for the internal revenue district in which the return is filed for the first taxable year in which any of the gain from the involuntary conversion is realized. No extension of time shall be granted pursuant to such application unless the taxpayer can show reasonable cause for not being able to replace the converted property within the required period of time.

(4) Property or stock purchased before the disposition of the converted property shall be considered to have been purchased for the purpose of replacing the converted property only if such property or stock is held by the taxpayer on the date of the disposition of the converted property. Property or stock shall be considered to have been purchased only if, but for the provisions of section 1033(b), the unadjusted basis of such property or stock would be its cost to the taxpayer within the meaning of section 1012. If the taxpayers unadjusted basis of the replacement property would be determined, in the absence of section 1033(b), under any of the exceptions referred to in section 1012, the unadjusted basis of the property would not be its cost within the meaning of section 1012. For example, if property similar or related in service or use to the converted property is acquired by gift and its basis is determined under section 1015, such property will not qualify as a replacement for the converted property.

(5) If a taxpayer makes an election under section 1033(a)(2), any deficiency, for any taxable year in which any part of the gain upon the conversion is realized, which is attributable to such gain may be assessed at any time before the expiration of three years from the date the district director with whom the return for such year has been filed is notified by the taxpayer of the replacement of the converted property or of an intention not to replace, or of a failure to replace, within the required period, notwithstanding the provisions of section 6212(c) or the provisions of any other law or rule of law which would otherwise prevent such assessment. If replacement has been made, such notification shall contain all of the details in connection with such replacement. Such notification should be made in the return for the taxable year or years in which the replacement occurs, or the intention not to replace is formed, or the period for replacement expires, if this return is filed with such district director. If this return is not filed with such district director, then such notification shall be made to such district director at the time of filing this return. If the taxpayer so desires, he may, in either event, also notify such district director before the filing of such return.

(6) If a taxpayer makes an election under section 1033(a)(2) and the replacement property or stock was purchased before the beginning of the last taxable year in which any part of the gain upon the conversion is realized, any deficiency, for any taxable year ending before such last taxable year, which is attributable to such election may be assessed at any time before the expiration of the period within which a deficiency for such last taxable year may be assessed, notwithstanding the provisions of section 6212(c) or 6501 or the provisions of any law or rule of law which would otherwise prevent such assessment.

(7) If the taxpayer makes an election under section 1033(a)(2), the gain upon the conversion shall be recognized to the extent that the amount realized upon such conversion exceeds the cost of the replacement property or stock, regardless of whether such amount is realized in one or more taxable years.

(8) The proceeds of a use and occupancy insurance contract, which by its terms insured against actual loss sustained of net profits in the business, are not proceeds of an involuntary conversion but are income in the same manner that the profits for which they are substituted would have been.

(9) There is no investment in property similar in character and devoted to a similar use if—

(i) The proceeds of unimproved real estate, taken upon condemnation proceedings, are invested in improved real estate.

(ii) The proceeds of conversion of real property are applied in reduction of indebtedness previously incurred in the purchase or a leasehold.

(iii) The owner of a requisitioned tug uses the proceeds to buy barges.

(10) If, in a condemnation proceeding, the Government retains out of the award sufficient funds to satisfy special assessments levied against the remaining portion of the plot or parcel of real estate affected for benefits accruing in connection with the condemnation, the amount so retained shall be deducted from the gross award in determining the amount of the net award.

(11) If, in a condemnation proceeding, the Government retains out of the award sufficient funds to satisfy liens (other than liens due to special assessments levied against the remaining portion of the plot or parcel of real estate affected for benefits accruing in connection with the condemnation) and mortgages against the property, and itself pays the same, the amount so retained shall not be deducted from the gross award in determining the amount of the net award. If, in a condemnation proceeding, the Government makes an award to a mortgagee to satisfy a mortgage on the condemned property, the amount of such award shall be considered as a part of the amount realized upon the conversion regardless of whether or not the taxpayer was personally liable for the mortgage debt. Thus, if a taxpayer has acquired property worth $100,000 subject to a $50,000 mortgage (regardless of whether or not he was personally liable for the mortgage debt) and, in a condemnation proceeding, the Government awards the taxpayer $60,000 and awards the mortgagee $50,000 in satisfaction of the mortgage, the entire $110,000 is considered to be the amount realized by the taxpayer.

(12) An amount expended for replacement of an asset, in excess of the recovery for loss, represents a capital expenditure and is not a deductible loss for income tax purposes.