Resident tax credits Tax credits available to Philadelphia residents, including eligibility guidelines and application details. Active Duty Tax Credit Requirements for the Active Duty Tax Credit, which is offered to members of the armed services who are called to active duty outside PA. Earned Income Tax Credit (EITC) resources Information for workers, community groups, and employers about the federal Earned Income Tax Credit (EITC). The EITC is not a City program. Child Tax Credit (CTC) Resources Information parents and guardians with qualifying children about the federal Child Tax Credit (CTC). The CTC is not a City program.