Form an LLC by State

Form an LLC by State › Montana

Cheapest and fastest way to file an LLC in Montana (2026)

Filing an LLC in Montana costs $35 in state fees. The fastest route listed is 1 hour, +$100 on top of the filing fee ($135 all in). Mainstay Filing, our best overall pick, files it for you and keeps the registered agent.

  • Official sources, checked October 20, 2026

Cheapest vs fastest in Montana

RouteWhat you getState cost
CheapestStandard filing; turnaround not published$35
Fast, no extra feeNone listed—
Paid lane24 hour$55
Paid lane1 hour$135

Paid lanes are the filing fee plus the expedite fee. The yearly report is $20 afterwards.

What the Montana Secretary of State says

No current standard turnaround published. 24 Hour Processing Fee $20; 1 Hour Processing Fee $100 (fee page); the PDF calls them "24 Hour Priority handling for all documents $20.00" and "1 Hour Expedite filing for all documents $100.00".

Processing and expedite, read October 1, 2026

Best overall in Montana

Mainstay Filing

Our rating: 4.9 out of 5

$199 / year, same at renewal

  • LLC formation, prepared and filed
  • Registered agent, all year
  • EIN application (with an SSN or ITIN)
  • Annual report filed every year it is due where the state requires one
  • Compliance reminders and stored documents

Price from the Mainstay Filing pricing and FAQ pages, checked October 21, 2026. State fees are passed through at cost and shown before you pay.

Questions

What is the cheapest way to file an LLC in Montana?

The cheapest route is the plain filing at $35, with no turnaround published on the pages we read.

What is the fastest way to file an LLC in Montana?

The fastest route listed is 1 hour, +$100 on top of the filing fee ($135 all in).

How much does it cost to expedite a Montana LLC?

The state lists 2 options: 24 hour (+$20); 1 hour (+$100).

Sources