Recapture of deduction in certain cases; addition to tax

(A) Recapture The Secretary shall provide for the recapture of the amount of any deduction allowed under this section (plus interest) with respect to any contribution of an undivided portion of a taxpayer’s entire interest in tangible personal property— (i) in any case in which the donor does not contribute all of the remaining interests in such property to the donee (or, if such donee is no longer in existence, to any person described in section 170(c)) on or before the earlier of— (I) the date that is 10 years after the date of the initial fractional contribution, or (II) the date of the death of the donor, and (ii) in any case in which the donee has not, during the period beginning on the date of the initial fractional contribution and ending on the date described in clause (i)— (I) had substantial physical possession of the property, and (II) used the property in a use which is related to a purpose or function constituting the basis for the organizations’ exemption under section 501.

(B) Addition to tax The tax imposed under this chapter for any taxable year for which there is a recapture under subparagraph (A) shall be increased by 10 percent of the amount so recaptured.