Filing Online Saves You Time and Montana Money
We offer a variety of electronic options to meet your needs.
You can use these options to file and pay on your own or to work with your favorite tax preparer or payroll company.
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Approved Software VendorsWe only test software to ensure we can accept forms filed by the software. We are not associated with vendors and cannot guarantee any aspect of the software.
Learn more about software approval from the IRS.
TransAction Portal (TAP) Services and AidsThe TransAction Portal (TAP) is a free service for individuals, businesses, and tax professionals to access and manage accounts with the Montana Department of Revenue and the Gambling Control Division of the Department of Justice.
Access the TransAction Portal (TAP)
Other Department of Revenue Online ServicesIn addition to our online taxpayer resources, we also maintain online services for business owners, property owners, and more.
If you need assistance with one of our online services, please email us at DORCustomerAssistance@mt.gov.