The purpose of this legislation is to lower the tax rate on estates, gifts, and generation-skipping transfers. The goal is to make it easier for individuals to pass on wealth to their heirs without facing high tax burdens. The key provision of the legislation is the reduction of the tax rate on estates and gifts to a flat rate of 20%. This change simplifies the tax structure by replacing the previous tiered rates with a single rate. The legislation also includes amendments to various sections of the Internal Revenue Code to ensure consistency with this new rate.