Exemption applications must be filed with your local assessor's office. See our Municipal Profiles for your local assessor's mailing address.Personal property is considered Class II property and is taxed at 20 percent of market value. How can I get help with filling out my Tangible Personal Property Schedule? The Personal Property Division information page of the SDAT Web site contains links to forms and instructions, brochures, exemptions, tax rate charts and more. To file a business personal property return electronically, select the county in which property is located to be redirected to the appropriate website. Personal property is assessed based on ownership and garage jurisdiction. The Revenue Commissioner handles the mapping, appraising, assessing and collection of property taxes in Montgomery County. When is the listing period? Berkheimer Associates - This company handles local taxes of over 1,100 Pennsylvania municipalities and school districts.