reversionary interests
(4) Remainders or reversionary interests. If the interest to be valued is a remainder or reversionary interest subject to a life estate, the value of the interest should be obtained by multiplying the value of the property at the date of the gift by the figure in column 4 of Table A opposite the number of years nearest the age of the life tenant. If the remainder or reversion is to take effect at the end of a term for years, column 4 of Table B should be used. The application of this paragraph (d)(4) may be illustrated by the following example: (5) Actuarial computations by the Internal Revenue Service. If the interest to be valued is dependent upon the continuation or termination of more than one life, or there is a term certain concurrent with one or more lives, or if the retained interest of the donor is conditioned upon survivorship, a special factor is necessary. The factor is to be computed on the basis of interest at the rate of 10 percent a year, compounded annually, and life contingencies are determined for each person involved from the values of lx that are set forth in column 2 of Table LN in 20.2031-7A(d)(6) of this chapter. Table LN contains values of lx taken from the life table for the total population appearing as Table 1 in United States Life Tables: 1969-71, published by the Department of Health and Human Services, Public Health Service. A copy of the publication containing many such special factors, may be purchased from the Superintendent of Documents, United States Government Printing Office, Washington, DC 20402. However, if a special factor is required in the case of an actual gift, the Commissioner will furnish the factor to the donor upon request. The request must be accompanied by a statement of the date of birth of each person the duration of whose life may affect the value of the interest, and by copies of the relevant instruments. Special factors are not furnished for prospective transfers. (6) Tables. (i) For actuarial factors showing the present worth at 10 percent of a single life annuity, a life interest, and a remainder interest postponed for a single life, see 20.2031-7A(d)(6) of this chapter, Table A, of the Estate Tax Regulations. (ii) For actuarial factors showing the present worth at 10 percent of an annuity for a term certain, an income interest for a term certain, and a remainder interest postponed for a term certain, see 20.2031-7A(d)(6) of this chapter, Table B, of the Estate Tax Regulations.