The PA Business One-Stop Shop Help Center was created to assist businesses and entrepreneurs to start, operate, and grow a business in Pennsylvania. A purchase option is a right to purchase or lease land or other property interests without any obligation to do so.This video will demonstrate the process to apply for Pennsylvania business taxes. Is my tax exempt number the same as my sale tax license number? This blog simplifies the process of business registration with a stepbystep guide. It offers tips and resources for help. A guide for businesses needing straightforward answers to Pennsylvania Sales and Use Tax questions and audit guidance. The Department of Revenue has created this guide to help business owners understand their filing obligations.