Montana . 2026 filing guide
Montana Secretary of State filings, deadlines, and how to do them right.
Annual reports, business search, registered agent changes, reinstatement, dissolution, tax registration. Every Montana filing explained, plus the business environment, regulatory bodies, and a year-round compliance calendar. Verified against the Montana Secretary of State, Business Services Division as of June 2026.
Verified against Montana Secretary of State, Business Services Division on Jun 12, 2026
Agency
Montana Secretary of State, Business Services Division
Branded as Montana Business Services
Phone
406-444-3665
Mon-Fri 8am-5pm MT
Annual due
April 15
$15 penalty
Processing
1-2 business days
Online filings
Montana business environment
Why founders choose Montana (and what to know first)
No state sales tax. Low filing fees ($35 formation, $20 annual). Anonymous LLC option available. Natural resource economy. Reasonable income tax.
Economy
~$60B economy
Registered entities
~150,000 active entities
New formations / year
~20,000 annually
Key industries
Agriculture (cattle, wheat), mining, tourism (Yellowstone, Glacier), forestry, energy, manufacturing