Event Information
Third quarter 2019 estimated payments are due for:
3rd Quarter 2019 Individual, Pass-through, and Estate and Trusts Estimated Payments Due
Partnerships
2018 Partnership Returns on Extension Due
The Montana Partnership Information and Composite Tax Return (Form PR-1) is due for Partnerships filing on the calendar year on extension.
2nd Quarter 2019 Individual and Pass-through Estimated Payments Due
Second Quarter 2019 estimated payments are due for:
Payment Options
Individual Income Tax
Composite Income Tax (Pass-through Entities)
- TransAction Portal
- ACH Credit Payment
- The appropriate payment voucher:
Inactive Businesses: File Form INA-CT on TAP
Businesses that are not actively conducting business in Montana and would like to maintain good-standing with the Montana Secretary of State must file Form INA-CT for every year in which they have no activity in Montana.
Form INA-CT is valid only for one tax year. It must be filed each year unless an income tax return is required. Review the form’s instructions for more information about eligibility.
Form INA-CT is now available to file on our TransAction Portal (TAP). After June 14, the paper form will no longer be available for download.
Users can file Form INA-CT with or without an account. Authorized representatives will need the FEIN and the Secretary of State ID number of the business (or Social Security Number if the business is a sole proprietorship) to complete the form.
1st Quarter 2019 Individual and Pass-through Estimated Payments Due
First Quarter 2019 estimated payments are due for:
Payment Options
Individual Income Tax
Composite Income Tax (Pass-through Entities)
- TransAction Portal
- ACH Credit Payment
- The appropriate payment voucher:
2018 Partnership Returns Due
The Montana Partnership Information and Composite Tax Return (Form PR-1) is due for Partnerships filing on the calendar year.