How to Form an LLC in Montana

Forming a Montana LLC means filing Articles of Organization with the Secretary of State for $35. This guide walks through each step with current 2026 fees and links to official forms.

Step 1: Choose and check your LLC name

Montana LLC names must include “Limited Liability Company,” “LLC,” or “L.L.C.” Search availability via the Montana Secretary of State business search.

Step 2: Appoint a registered agent

Your Montana LLC needs a registered agent with a physical street address in the state who is available during normal business hours to receive service of process. You can serve as your own agent if you reside in Montana.

Step 3: File Articles of Organization

File Articles of Organization with the Montana Secretary of State. The filing fee is $35. Online filing is available and is typically faster than mail.

Step 4: Get an EIN from the IRS

Apply for a free Employer Identification Number through IRS.gov. EINs issue immediately for online applicants with a US Social Security Number or ITIN.

Step 5: Draft an Operating Agreement

Montana does not require LLCs to file an Operating Agreement, but having one is essential to preserve liability protection — especially for single-member LLCs.

Step 6: Comply with annual obligations

Montana requires an annual report (or equivalent) costing $20 on a annual basis. Set a calendar reminder; the late-filing penalty in most states is significant.

Step 7: Local licensing and permits

Check city and county requirements wherever your LLC operates in Montana. Many municipalities require a local business license even for online businesses.

Montana-specific notes

Montana has one of the lowest LLC formation fees at $35 with a $20 annual report due April 15. No statewide sales tax.

Frequently asked questions

How much does it cost to start an LLC in Montana?
The state filing fee is $35. Montana also requires an annual report at $20 per annual cycle.
How long does it take to form a Montana LLC?
Online filings via the Montana Secretary of State typically process in a few business days. Mail filings take longer.
Do I need a registered agent in Montana?
Yes. Every Montana LLC must designate a registered agent with a physical street address in the state.

Sources & further reading

Disclaimer: Legal information, not legal advice. For advice about your specific situation, consult a licensed attorney or CPA in your state. See our full disclaimer.