Download the Act 50 Applications(PDF, 1MB) and complete it. To apply for homestead exemption, you must bring the required documents (listed above) to our office and apply in person.Fill out the necessary application forms for the relevant exemptions. 1. Fill in the parcel number of the property for which you are seeking a homestead exclusion. Family could be stuck with paying back the deferral. Homestead Tax Exemption, PA. DEP'T OF CMTY. Beaver County was carved out of Washington and Allegheny Counties in 1800. Fill out an application online at compass.state.pa.us. Baltimore County surrounds the city of Baltimore, but does not include the metropolis itself.