Download the Act 50 Applications(PDF, 1MB) and complete it. Allegheny County has several programs that may help to reduce or eliminate a property tax bill.The Taxpayer Relief Act provides for property tax reduction allocations to be distributed to school districts through a "homestead or farmstead exclusion." To determine if you already have an application on file with the County for Act 50 tax relief program, you can visit the Allegheny County Real Estate Web Site. 1. Fill in the parcel number of the property for which you are seeking a homestead exclusion. Act 77 Property Tax Relief Verification Form 2020(PDF, 155KB). Act 50 – Homestead Tax Exemption. We maintain yearly records on over 550 thousand parcels. County of Allegheny. Disabled applicants must complete form DTE 105E,.