Montana Department of Revenue

Our Mission: To be the nation's most citizen-oriented, efficiently administered, state tax agency.

Attention: The Montana TransAction Portal (TAP) will be down for scheduled maintenance from Friday, December 27, 2024, 4:00 p.m. through Monday, December 30, 2024, 7:00 a.m

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The Montana State Self-Help Knowledge Base provides articles and resources on programs across the Montana state government.

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Recent News and Updates

Property

Business Equipment Reporting Requirement

Helena – The department recently notified business owners with a business equipment reporting requirement, that it is time to report for Tax Year 2025. Individuals and businesses owning business equipment Business Equipment Reporting Requirement

Miscellaneous Updates

Beginning December 29, 2024, TAP Account May Be Required for Payments

Beginning December 29, 2024, you may need to either create an account using the TransAction Portal (TAP) or log into your existing TAP account to make estimated payments, pay your ... Beginning December 29, 2024, TAP Account May Be Required for Payments
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