Business Personal Property Taxes. If you are a sole proprietor in Maryland you would file the same as an individual using Form 502.Our guide offers business owners easy-to-follow directions on how to file the Maryland Annual Report and Personal Property Tax Return on your own. To determine if you need a license, contact your local Clerk of the Circuit Court or call the State License Bureau at 410-260-6240. Personal property in Maryland is defined as "Personal property shall include all property other than real property or franchises. It helps to have an accountant help you fill it out but apparently your county that your reside in has to tax you on your personal property. When business began. For specific and complete legal advice, please consult with a practicing attorney who is knowledgeable about Maryland law and is familiar with the relevant. Wanton trespass on private property in Maryland is outlined in CL § 6-403. Dealers that sell secondhand personal property.