Montana
State of Montana Business Income Tax Extensions
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IRS Form 7004
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General Instructions
Choose your state from the list below to access detailed instructions for both business and personal tax extensions.
Corporation tax returns are due by May 15 — or by the 15th day of the 5th month following the end of the taxable year (for fiscal year filers).
Montana offers a 6-month extension, which moves the corporation filing deadline to November 15 (for calendar year filers).
Montana’s business extension is automatic, so there’s no formal application or written request to submit.
An extension of time to file is not an extension of time to pay. If you owe Montana tax, it must be paid by the original due date to avoid penalties and interest. You can make a Montana extension payment with Form CT, or pay electronically through Montana’s Online Services portal: revenue.mt.gov/online_services
Montana State Income Tax Extension Forms
Extend your business tax return due date by 6 months in minutes! Use FileLater to e-file Form 7004 for IRS Forms 1120, 1120S, 1065, and more.
Website: Montana Department of Revenue
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Form CT