Liberty Tax Service - Germantown. Liberty Tax Service will continue to provide excellent customer service to its clients at our Germantown location for Tax Year 2014 and prior tax years. Starting May 4th, 2015, we will be open Mondays from 11:00 noon to 7:00 pm and Fridays from 12 noon to 7:00 pm. If you want to meet with us outside this time period, please leave a message. We will set up a mutual time. Thank you for your business and trust in us. Remember, we are open all year to assist you! If you need immediate assistance, plase call us at (301) 337-1111.