
Ray M. answered 05/07/22
Diverse business accountant. CPA/CFF, CVA.
Zero. Assuming Joe and Mary are married, under the current tax rules, Joe and Mary would be able to exclude up to $500k in gain on there personal return. The additional information about improvements to the home would help increase the basis of the home, to minimize the gain. However, because the exclusion is higher than the total amount of the gain without the improvements, this information is not needed.