Beginning with Tax Year 2019, Partnerships and S corporations will file their Montana tax return on the new Montana Pass-Through Entity Tax Return (Form PTE).
For all tax years beginning before December 31, 2018, please continue to use the current forms:
- Partnership Information and Composite Tax Return (Form PR-1)
- S Corporations
- S Corporation Information and Composite Tax Return (Form CLT-4S)
- Disregarded Enities
- Disregarded Entity Information Return (Form DER-1)