Corporate excise taxpayers receive an automatic extension of time to file their tax returns as long they have paid the greater of (1) 50% of the total amount of tax ultimately due or (2) the minimum corporate excise by the original due date for filing the return. See TIR 15-15 for more information.
If a taxpayer needs to make a payment to reach the 50% threshold or to pay the minimum corporate excise, taxpayers may make these payments electronically through MassTaxConnect. Most extension payments by corporate excise taxpayers are required to be made electronically. See TIR 21-9 and TIR 16-9. All current electronic filing and payment requirements can be found on the Department’s website at: https://www.mass.gov/info-details/dor-e-filing-and-payment-requirements.
Combined Report Filers
Most corporate excise taxpayers required to participate in a combined report receive an automatic 7-month extension to file. The total amount of tax due for each corporation required to participate in the combined group must include both the income measure and the non-income measure, including the excise due with respect to income that is not included in the combined group's taxable income.
The 7-month extension applies to all income that is reported on the combined report, including any income of a corporate taxpayer that is not included in the combined group's taxable income (e.g., allocable income), if the corporate taxpayer reports this income using the same taxable year as the combined group. The 7-month extension also applies to the filing with respect to the non-income measure that is required from any member of the combined group if the member has the same tax year as the combined group.
Corporate excise taxpayers included in a combined report and required to pay the non-income measure of the corporate excise but have a different taxable year than that of the combined group receive an automatic 6-month extension to file. Corporate excise taxpayers with a taxable year different from that of the combined group must separately report any income not included in the combined group’s income, as well as any non-income measure excise owed for that year. Such corporate excise taxpayers receive an automatic 6-month extension to file. See TIR 15-15 for more information.
Corporate Excise Filers Not Filing As Part of a Combined Report
Corporate excise taxpayers not filing as part of a combined report receive an automatic 6-month extension to file. These taxpayers generally include S Corporations, Security Corporations, Financial Institutions, Insurance Companies, Urban Redevelopment Companies, and Business Corporations. See TIR 15-15 for more information.
Unrelated Business Income Tax Filers
Taxpayers filing returns reporting unrelated business income tax receive an automatic 8-month extension to file. This applies to taxpayers currently filing Form M-990T. See TIR 15-15 for more information.
G.L. c. 62C, §§ 19, 81
G.L. c. 65C, § 10
Form M-4768, Application for Extension of Time to File Massachusetts Estate Tax Return