Realty Transfer Tax is due when you present the sale document for recording. When you complete a sale or transfer of real estate that is located in Philadelphia, you must file and pay the Realty Transfer Tax.If you are planning to make an offer in Philadelphia, we've compiled a stepbystep guide so you know what to expect. This transmits revised IRM 21.7. 13, Business Tax Returns and Non-Master File Accounts - Assigning Employer Identification Numbers (EINs). Information and online services regarding your taxes. Follow the instructions given in the letter if the state is asking for additional information. About Our Downtown Philadelphia Hotel. Our Center City hotel offers a prime location within the Financial District.