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Montana LLC annual report: due date, fee and how to file

When: An annual report is due between January 1 and April 15 every year, starting the year after you form. Montana has waived the fee in recent years; check the state's site for this year.

State fee: Varies; see the state's site

Where: Montana Secretary of State

First due date for an LLC formed in 2026

Find the month you formed your LLC. Later reports are due every year on the same schedule.

Formed inFirst report due
January 2026Apr 15, 2027
February 2026Apr 15, 2027
March 2026Apr 15, 2027
April 2026Apr 15, 2027
May 2026Apr 15, 2027
June 2026Apr 15, 2027
July 2026Apr 15, 2027
August 2026Apr 15, 2027
September 2026Apr 15, 2027
October 2026Apr 15, 2027
November 2026Apr 15, 2027
December 2026Apr 15, 2027

Dates assume mid-month formation; for rules tied to your exact formation date, use the day you registered.

What happens if you miss it

Most states add a late fee first. If the annual report stays unfiled, the state can mark your LLC as not in good standing and eventually dissolve it, which can cost you liability protection and your business name.

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Starting a business in Montana?

Any businessContractors and constructionPlumbingElectriciansHeating and air conditioning (HVAC)CleaningLandscaping and lawn careRestaurants and cafesFood trucksSalons, barbers and beautyAuto repairChild care and daycareFitness and personal trainingPhotography and videoReal estate agents and brokersConsulting and professional servicesShops and online storesMoving companiesTrucking

For LLCs; corporations can differ. Checked against the state's site, October 2026. Confirm with the state before filing.

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