Massachusetts Instructions for Use of Forms is a comprehensive set of guidelines and procedures from the Massachusetts Department of Revenue that provides instructions for the correct use of forms related to taxation and filing. There are different types of Massachusetts Instructions for Use of Forms, including forms related to sales and use tax, income tax, corporate excise, meals tax, and motor vehicle excise. Each form comes with detailed instructions on how it should be filled out and filed. The forms also provide information on when the forms are due, how to submit them, and any applicable penalties for late filing. The Instructions also provide guidance on how to properly calculate taxes and credits, as well as information on how to obtain refunds or appeal a decision.