Massachusetts Corporate Excise Tax Forms and Instructions

DOR has released its 2024 Massachusetts Corporate Excise tax forms. You will also find 2025 credit schedules, prior year corporate forms, and estimated tax information.

Updated: February 7, 2025

What You Need to Know

These forms are subject to change only by federal or state legislative action.

All printable Massachusetts corporate excise tax forms are in PDF format. To read them, you'll need the free Adobe Acrobat Reader.

If you have any suggestions or comments on how to improve these forms, contact the Forms Manager at [e-mail].

2024 Corporate Excise, 2025 Credit Schedules, and All DOR Tax Forms

2024 Corporate Excise Tax Forms and Instructions  2025 Corporate Excise Tax Credit Schedules  All DOR Tax Forms and Instructions 

Corporate Due Dates & Extensions

These are due dates for calendar year filers. Fiscal year filers must determine due dates based upon tax period end date. Extension and estimated payment due date information is included. Go to Corporate Due Date and Extensions.

DOR Approved Software Developers

Software developers approved by DOR for participation in the Massachusetts Electronic Filing Program.

Visit DOR Approved Software Developers.

File and Pay Online with MassTaxConnect

MassTaxConnect is DOR's web-based application for filing and paying taxes. It's fast, safe and secure.

Prior Year Corporate Excise Tax Forms & instructions

Prior Massachusetts corporate forms and instructions are listed for tax years 2023-2011.

2023 - 2019	2018 - 2015	2014 - 2011
2023	2018	2014
2022	2017	2013
2021	2016	2012
2020	2015	2011
2019	N/A	N/A

Estimated Tax Payment Vouchers

All corporations and financial institutions that reasonably estimate their excise to be in excess of $1,000 for the taxable year are required to make estimated payments.

Corporate Excise Tax Estimated Payments  All DOR Estimated Tax Payments