Official Resource
Montana Official SOS WebsiteThe Montana Secretary of State's Business Services office registers all entities, processes annual reports, and issues certificates entirely online. Paper forms are not accepted. The physical office in Helena handles walk-in inquiries, though filing must go through the biz.sosmt.gov portal.
Office contact
| Street address | Montana Capitol Building, Room 260, Helena, MT 59620 |
|---|---|
| Mailing address | P.O. Box 202801, Helena, MT 59620-2801 |
| Business & UCC phone | (406) 444-3665 |
| Business & UCC email | sosbusiness@mt.gov |
| Filing portal | biz.sosmt.gov |
| Business Services homepage | sosmt.gov/business |
| Fee schedule | sosmt.gov/business/fees |
Entity formation and filing fees
Fees below are from the Montana Secretary of State's live fee schedule page, last updated September 2025. Annual reports are free when filed by April 15; the $35 late fee applies to filings after that date. Dissolution and articles of termination carry no fee. Verify current amounts at sosmt.gov/business/fees before filing.
| Filing | Fee |
|---|---|
| Domestic LLC — Articles of Organization | $35 |
| Domestic LLC — Annual Report (filed before April 15) | $0 (waived) |
| Domestic LLC — Annual Report (filed after April 15) | $35 |
| Domestic LLC — Articles of Termination | No fee |
| Domestic Profit Corporation — Articles of Incorporation | $35 |
| Domestic Profit Corporation — Annual Report (before April 15) | $0 (waived) |
| Domestic Profit Corporation — Annual Report (after April 15) | $35 |
| Domestic Nonprofit Corporation — Articles of Incorporation | $20 |
| Foreign Entity — Registration | $70 |
| Name Reservation (120 days, non-renewable) | $10 |
| Certificate of Existence (Good Standing) | $5 |
| Certificate of Fact | $15 |
| Certified Copies | $10 |
| 24-hour expedited processing | +$20 |
| 1-hour expedited processing | +$100 |
| Assumed Business Name (DBA) Registration | $20 |
Key Montana state licensing agencies
| Agency | What it covers | Website |
|---|---|---|
| Montana Department of Revenue | State tax registration, sales and use tax, income tax withholding, business tax registration | mtrevenue.gov |
| Montana Department of Labor and Industry (DLI) | Unemployment insurance registration, workers' compensation, contractor licensing, wage and hour | dli.mt.gov |
| Montana Board of Contractors | General contractor and subcontractor licensing, electrical and plumbing registration | boards.bsd.dli.mt.gov/contractors |
This guide is informational only and is not affiliated with the Montana Secretary of State's office or any state agency listed above. Contact information and fees verified against official Montana Secretary of State sources, May 2026.
This is an independent, informational guide. It is not affiliated with the Montana government or any official agency.
Last verified: May 24, 2026