Example 1. C maintains C's principal place of business in one room of C's principal residence. The room meets the requirements of section 280A(c)(1) for deductibility of expenses related to such use. The residence is a personal residence.
Example 2. L owns a vacation condominium that L rents out for six months of the year, but which is treated as L's residence under section 280A(d)(1) because L occupies it for at least 18 days per year. L provides no substantial services in connection with the rental of the condominium. L transfers the condominium to an irrevocable trust, the terms of which meet the requirements of a qualified personal residence trust. L retains the right to use the condominium during L's lifetime. The trust is a qualified personal residence trust.
Example 3. W owns a 200-acre farm. The farm includes a house, barns, equipment buildings, a silo, and enclosures for confinement of farm animals. W transfers the farm to an irrevocable trust, retaining the use of the farm for 20 years, with the remainder to W's child. The trust is not a personal residence trust because the farm includes assets not meeting the requirements of a personal residence.
Example 4. A transfers A's principal residence to an irrevocable trust, retaining the right to use the residence for a 20-year term. The governing instrument of the trust does not prohibit the trust from holding personal property. The trust is not a qualified personal residence trust.
Example 5. T transfers a personal residence to a trust that meets the requirements of a qualified personal residence trust, retaining a term interest in the trust for 10 years. During the period of T's retained term interest, T is forced for health reasons to move to a nursing home. T's spouse continues to occupy the residence. If the residence is available at all times for T's use as a residence during the term (without regard to T's ability to actually use the residence), the residence continues to be held for T's use and the trust does not cease to be a qualified personal residence trust. The residence would cease to be held for use as a personal residence of T if the trustee rented the residence to an unrelated party, because the residence would no longer be available for T's use at all times.
Example 6. T transfers T's personal residence to a trust that meets the requirements of a qualified personal residence trust, retaining the right to use the residence for 12 years. On the date the residence is transferred to the trust, the fair market value of the residence is $100,000. After 6 years, the trustee sells the residence, receiving net proceeds of $250,000, and invests the proceeds of sale in common stock. After an additional eighteen months, the common stock has paid $15,000 in dividends and has a fair market value of $260,000. On that date, the trustee purchases a new residence for $200,000. On the purchase of the new residence, the trust ceases to be a qualified personal residence trust with respect to any amount not reinvested in the new residence. The governing instrument of the trust provides that the trustee, in the trustee's sole discretion, may elect either to distribute the excess proceeds or to convert the proceeds into a qualified annuity interest. The trustee elects the latter option. The amount of the annuity is the amount of the annuity that would be payable if no portion of the sale proceeds had been reinvested in a personal residence multiplied by a fraction. The numerator of the fraction is $60,000 (the amount remaining after reinvestment) and the denominator of the fraction is $260,000 (the fair market value of the trust assets on the conversion date). The obligation to pay the annuity commences on the date of sale, but payment of the annuity that otherwise would have been payable during the period between the date of sale and the date on which the trust ceased to be a qualified personal residence trust with respect to the excess proceeds may be deferred until 30 days after the date on which the new residence is purchased. Any amount deferred must bear compound interest from the date the annuity is payable at the section 7520 rate in effect on the date of sale. The $15,000 of income distributed to the term holder during that period may be used to reduce the annuity amount payable with respect to that period if the governing instrument so provides and thus reduce the amount on which compound interest is computed.
26 C.F.R. §25.2702-5