What is the phone number for the department of revenue? The customer support phone number of Massachusetts Department of Revenue is 800-392-6089/ 617-887-6367 (Click phone number to call).What is montana department of revenue? The Montana Department of Revenue is a government department that has responsibility to collect revenue from the people in the United States. It collects revenue in the form of tax like income tax, sales tax, state tax, property tax and other miscellaneous taxes.What is the department of revenue? Department of Revenue. Federal agency responsible for handling revenue generated from the taxation of citizens and businesses. This agency is also responsible for the collection of a wide variety of taxes. Each state has its own department of revenue that collects local and state taxes.