Start Your Montana LLC in 7 Simple Steps

Form your LLC with the lowest filing fee in the nation and get your business running in just 3 business days.

By Edmond Hui · Last updated: January 2026

Key Finding

Montana's $35 LLC filing fee ranks #1 cheapest among all 50 U.S. states

This makes Montana one of the most affordable states to start an LLC, with total first-year costs of just $50 compared to the national average of $203.

Source: MyStateLLC 50-state analysis 2026

Quick Facts

State filing fee$35
Processing time3 business days
Annual report dueApril 15
Annual report fee$15
State income taxYes, but no state sales tax

How to Form an LLC: Step-by-Step

  1. 1

    Choose Your Montana LLC Name

    Select a unique name ending with 'LLC,' 'Limited Liability Company,' or acceptable abbreviations. Check availability using Montana Secretary of State's business search tool. Your name must be distinguishable from existing Montana business entities.

    Pro tip: Reserve your name for 120 days with a $10 fee if you're not ready to file immediately.
  2. 2

    Appoint a Montana Registered Agent

    Designate a registered agent with a Montana street address to receive legal documents. This can be yourself, another person, or a professional service. The agent must be available during normal business hours and have a physical Montana address.

    Pro tip: Using a professional registered agent protects your privacy and ensures you never miss important legal documents.
  3. 3

    File Articles of Organization

    Submit Form LLC-1 to the Montana Secretary of State with the $35 filing fee. Include your LLC name, registered agent information, and principal office address. File online at sosmt.gov or mail to the Secretary of State's office.

    Pro tip: Online filing is faster and provides immediate confirmation of submission.
  4. 4

    Create an Operating Agreement

    Draft an operating agreement outlining ownership structure, management procedures, and member responsibilities. While not required by Montana law, this document protects your LLC's limited liability status and prevents disputes between members.

    Pro tip: Even single-member LLCs benefit from an operating agreement to maintain separation between personal and business assets.
  5. 5

    Obtain an Employer Identification Number (EIN)

    Apply for a federal EIN through the IRS website, even if you don't plan to hire employees. This free process typically takes a few minutes online and provides the tax ID number needed for banking and tax purposes.

    Pro tip: Get your EIN immediately after filing your Articles of Organization to avoid delays in opening business accounts.
  6. 6

    Open a Business Bank Account

    Separate your business and personal finances by opening a dedicated LLC bank account. Bring your Articles of Organization, EIN confirmation, and operating agreement to the bank. Most Montana banks offer business checking accounts with competitive rates.

    Pro tip: Shop around for business accounts with no monthly fees and convenient online banking features.
  7. 7

    Obtain Required Business Licenses

    Research and obtain necessary licenses and permits based on your business activities and location. Check requirements with Montana Department of Revenue for state licenses and your local city or county for municipal permits.

    Pro tip: Use Montana's Business Licensing Database to identify all licenses needed for your specific industry.

Frequently Asked Questions

Next Step
Next step: File your annual report on time
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