What is the deadline for filing my Montana state taxes?

Asked 2 years ago
The deadline for filing Montana state taxes generally coincides with the federal tax filing deadline. For most individuals, this date falls on April 15 each year. However, if April 15 is a weekend or a holiday, the deadline may be extended to the next business day. In some cases, individuals may qualify for an automatic extension, which allows for an additional six months to file. While the extension provides extra time to submit tax returns, it is important to note that any taxes owed are still due by the original deadline, to avoid penalties or interest. It is always a good idea to check the official Montana Department of Revenue website for the most current information and specifics regarding your situation.
Christian Allen is the editor / author responsible for this content.
Answered Aug 25, 2025

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