LLC PathfinderHow to Start an LLC in Montana
Forming an LLC in Montana costs $35 in state filing fees. Here are the five steps, the ongoing costs, and the official links.
1Step 1: Choose your LLC name
Your name must be distinguishable from existing Montana entities and include "LLC" or "Limited Liability Company". Search the Montana business records before filing.
2Step 2: Appoint a registered agent
You need a registered agent with a physical street address in Montana who can accept legal mail during business hours. If you don't live there, or want to keep your home address off public records, use a commercial agent. See our service comparison.
3Step 3: File your formation document
File with the state for $35. Most states accept online filings, which are usually the fastest. Prefer someone else to handle it?
Visit ZenBusiness Visit Northwest Registered Agent
4Step 4: Write an operating agreement
Most states don't require you to file one, but banks often ask for it, and it protects your liability shield, especially for multi-member LLCs.
5Step 5: Get an EIN from the IRS
An EIN is free from the IRS. Read our EIN guide.
Staying compliant in Montana
Annual report $20 (waived for on-time filings in 2026 and 2027). Due: April 15. See the full Montana LLC cost breakdown.
FAQ
How much does it cost to start an LLC in Montana?
The Montana state filing fee is $35. Ongoing: Annual report $20 (waived for on-time filings in 2026 and 2027).
Do I need a registered agent in Montana?
Yes. Every Montana LLC must keep a registered agent with a physical address in Montana. You can be your own agent if you live there, or hire a commercial registered agent.
When is the Montana LLC annual report due?
April 15.
Last updated 2026-10-11.