Montana Personal Tax Extension 2026: 2025 Tax-Year Filing Guide
Individual Income Tax · Form 2
Montana generally grants an automatic extension for individual returns. Montana grants an automatic six-month filing extension for individual returns. For federal details, see our federal tax extension resources.
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✓ Secure e-filing✓ 24/7 filingMontana generally grants an automatic extension for individual returns. Montana grants an automatic six-month filing extension for individual returns.
Last updated: September 12, 2026Montana Personal Tax Extension: Filing Details
Montana generally grants an automatic extension for individual returns. Montana grants an automatic six-month filing extension for individual returns.
Quick Reference: Deadlines and Forms
Use this summary to confirm Montana filing deadlines, forms, and payment requirements.
| Item | Montana personal return | Deadline or method |
|---|---|---|
| Original deadline | Form 2 | April 15, 2026 |
| Extended deadline | Automatic | October 15, 2026 |
| Return form | Form 2 | Use the current form |
| Payment | Form IT | Due April 15, 2026 |
Frequently Asked Questions
Answers about Montana personal tax extensions.
Yes. Montana provides an automatic six-month extension to file an individual return.
Use Montana Form 2 for the individual income tax return.
Pay Montana tax by April 15; the extension applies to filing, not payment.
Check the Montana Department of Revenue for current forms and instructions.