2020 Corporate Excise tax forms and instructions

DOR has released the following 2020 Corporate Excise tax forms. The forms are subject to change only by federal or state legislative action.

Updated: February 26, 2021 

Table of Contents

355 Corporate Excise Forms

355S Corporate Excise Forms

355U Corporate Excise Forms

Corporate Excise Additional Forms

Estimated Tax Payment Vouchers

DOR Approved Software Developers

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Tax Department (617) 887-6367
Toll-free in Massachusetts (800) 392-6089

9 a.m.–4 p.m., Monday through Friday


Massachusetts Department of Revenue
Problem Resolution Office P.O. Box 9552
Boston, MA 02114

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