Your organization can help promote the Earned Income Tax Credit (EITC) by using its communication network so that more eligible people receive it, bringing more dollars into your community. A tax credit is a dollar-for-dollar reduction of taxes owed. Some credits are refundable - taxes could be reduced to the point that an individual would receive a refund rather than owing any taxes.
Your organization can also sponsor a Volunteer Income Tax Assistance (VITA) site in your community to prepare tax returns for those who cannot prepare their own and cannot afford professional help.