Deduction upon repurchase
(c) Deduction upon repurchase. Except to the extent disallowed by any other section of the Internal Revenue Code (e.g., section 249) or this paragraph (c), if a debt instrument is repurchased by the issuer for a price in excess of its adjusted issue price (as defined in 1.1275-1(b)), the excess (repurchase premium) is deductible as interest for the taxable year in which the repurchase occurs. If the issuer repurchases a debt instrument in a debt-for-debt exchange, the repurchase price is the issue price of the newly issued debt instrument (reduced by any unstated interest within the meaning of section 483). However, if the issue price of the newly issued debt instrument is determined under either section 1273(b)(4) or section 1274, any repurchase premium is not deductible in the year of the repurchase, but is amortized over the term of the newly issued debt instrument in the same manner as if it were OID.