The main purpose of this legislation is to change the rules regarding the earned income tax credit (EITC) by removing the upper age limit for eligibility. The EITC is a tax benefit designed to support low- to moderate-income workers, and this change aims to help older workers who may still be in the workforce but previously could not qualify for this credit due to age restrictions. The key provision of this legislation is the repeal of the age limit that currently prevents individuals aged 65 and older from receiving the EITC.