Reply To: I didn't file gift tax return. Now what? Home › Fairmark Forum › Other Tax Topics › I didn't file gift tax return. Now what? › Reply To: I didn't file gift tax return. Now what? October 29, 2019 at 11:50 pm #4787 kaneoheParticipant it depends………. https://www.irs.gov/faqs/capital-gains-losses-and-sale-of-home/property-basis-sale-of-home-etc/property-basis-sale-of-home-etc