Q&A: Calculating capital gains and losses

Dear Liz: With my father’s recent passing, I received a substantial inheritance, much of it in the form of stocks and mutual funds. If I sell these assets, do I calculate the capital gains and losses based on the date I took possession of the assets? Or do I use their value on the date of his death?

Answer: Typically you’d use the date of his death. If your father’s estate was very large and owed estate taxes, however, the executor may have chosen an alternative valuation date six months from the date of death. This option is available if the value of the estate would have been lower on the later date.

There is a circumstance in which your basis would be the value on the date the assets were turned over to you, said Mark Luscombe, principal analyst for Wolters Kluwer Tax & Accounting U.S. If the executor elected the alternate valuation date, but the assets were actually distributed to you before that date, then the basis is the fair market value on the date of distribution, Luscombe said.

Inherited assets usually get a “step up” in basis when someone dies, so there’s no tax owed on any of the growth in those assets that occurred while the person was alive. Inheritors have to pay taxes only on the growth that occurs between the date of death (or the alternate evaluation or distribution date) and when the assets are sold.

The assets would get long-term capital gains treatment regardless of how long you’d owned them, which is another helpful tax break.