What an LLC costs in Montana (2026)
Forming an LLC in Montana costs $35. After that the state charges Annual Report, no fee.
| Cost | Amount | When | |
|---|---|---|---|
| Articles of Organization | $35 | Once, to form | sosmt.gov |
| Annual Report | Annual Report, no fee | April 15 | sosmt.gov |
What else an LLC owner pays
The fees above are what the state charges the LLC. The bigger cost is tax on the profit: a single-member LLC pays the same income tax and self-employment tax as a sole proprietor. At $100,000 of profit that comes to $26,255 a year in Montana, fees included. An S corp election can lower it: LLC vs S corp in Montana.
Standard annual report fee is $20 ($35 after April 15). The Secretary of State waived the on-time fee for 2024, 2025 and 2026 and has announced a waiver for 2027, so the on-time cost in those years is $0.
Questions
How much does it cost to start an LLC in Montana?
$35 to file the Articles of Organization.
How much does an LLC cost per year in Montana?
Annual Report, no fee.
When is the Montana LLC report due?
April 15.
Does an LLC pay Montana income tax?
Not by itself, in most cases: a single-member LLC's profit is taxed on the owner's return. Montana taxes personal income in 2 brackets, from 4.7% to 5.65% (2026, single filer).
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