The purpose of the Shared Home Appreciation for Residential Equity Act, also known as the SHARE Act, is to change how certain financial proceeds from shared appreciation mortgage contracts are treated for tax purposes. Specifically, it aims to exclude these proceeds from being counted as taxable income, making it more financially beneficial for borrowers who use this type of mortgage. Key provisions of the SHARE Act include the exclusion of any amount received by a lender that exceeds the original loan amount of a shared appreciation mortgage, provided certain conditions are met.