The Personal Property Division information page of the SDAT Web site contains links to forms and instructions, brochures, exemptions, tax rate charts and more. Portal for filling out and submitting Business Personal Property Listings and Extensions.Taxscribe tutorial . We offer several ways for you to obtain Maryland tax forms, booklets and instructions. You can also file your Maryland return electronically online. Instructions for the County of Mecklenburg VA Business Return of Tangible Personal Property. Filing Date: August 1. Most businesses must file a personal property tax return each year. If you are unsure whether you are required to file, please contact SDAT at 410-767-1170.