The main purpose of this legislation is to change the tax rules regarding the sale of primary homes. Specifically, it aims to remove the current dollar limits on the amount of profit homeowners can exclude from their taxable income when they sell their principal residences. This change is intended to provide financial relief to middle-class families and encourage homeownership. The key provisions of this legislation include the elimination of specific dollar limits that currently restrict how much gain from the sale of a home can be excluded from taxes.