Complete guide to forming LLCs, corporations, nonprofits, professional entities, and specialized structures in Montana β Big Sky Country's comprehensive business entity ecosystem
πΌ
LLC Formation Fee
$70
π’
Corporation Formation
$70
π
Annual Report Due
April 15
β°οΈ
Business Hub
Big Sky State
β
Montana Entity Types β Overview
β°οΈ Welcome to Montana Business Formation
Montana offers one of the most comprehensive menus of business entity types in the United States. Whether you're establishing a tech startup, managing agricultural operations, launching a benefit corporation, or building a cooperative, Montana provides modern business statutes with competitive fees and an efficient online filing system at biz.sosmt.gov.
Montana Business Entity Menu
Montana's Title 35 (Corporations, Partnerships, and Associations) recognizes the following business entity types:
Limited Liability Companies
Domestic LLC
Professional LLC (PLLC)
Series LLC
Foreign LLC (registered)
Standard Corporations
For-Profit Corporation (C-corp)
S Corporation (federal election)
Close Corporation
Benefit Corporation
Foreign Corporation
Professional Entities
Professional Corporation (PC)
Professional LLC (PLLC)
Professional LLP (PLLP)
Partnerships
General Partnership
Limited Partnership (LP)
Limited Liability Partnership (LLP)
Limited Liability Limited Partnership (LLLP)
Nonprofit Entities
Public Benefit Nonprofit
Mutual Benefit Nonprofit
Religious Corporation
Religious Corporation Sole
Specialized Entities
Cooperative Associations
Rural Cooperative Utilities
Business Trusts
Sole Proprietorship / ABN
Key Montana Advantages
β Montana Business Benefits:
Series LLC authorization: Montana is one of only 10 states explicitly authorizing series LLCs with single annual report
Benefit corporation statute: Modern benefit corporation act (enacted 2015) for social enterprises
Close corporation option: Statutory close corporation structure for small, closely-held companies
No sales tax: Montana is one of five states with no state sales tax
Rich cooperative ecosystem: Comprehensive cooperative statutes for agricultural and consumer co-ops
Online filing system: Streamlined biz.sosmt.gov portal for 24/7 filing
Professional entity flexibility: PC, PLLC, and PLLP options for licensed professionals
LLLP support: Full limited liability for all partners in LLLPs
β°οΈ Montana's Unique Features:
Series LLCs: Explicit statutory framework for series LLCs with asset segregation and single annual report for parent entity
Benefit Corporations: Directors must consider stakeholder interests beyond shareholder profit; ideal for mission-driven companies
Close Corporations: Relaxed formalities for small businesses; can operate without board of directors
No franchise tax: Unlike Delaware ($300/year for LLCs), Montana has no annual franchise tax
Religious corporation sole: Unique structure allowing religious leaders to incorporate individually
Montana vs Other Jurisdictions
Factor
Montana
Delaware
Wyoming
LLC Formation Fee
$70
$90
$100
LLC Annual Report
$20 (April 15)
$300 (June 1)
$60
Corp Annual Report
$20 (April 15)
$50
$60
Series LLCs?
β Yes (explicit)
β Yes
β No
Benefit Corporation?
β Yes (2015)
β Yes
β No
Close Corporation?
β Yes (statutory)
β Yes
β Yes
Sales Tax?
β No
β No
β No
When to Choose Montana Formation
β Choose Montana When:
Operating a business physically located in Montana
Want series LLC structure with asset segregation
Forming a benefit corporation or social enterprise
Need close corporation flexibility
Agricultural or cooperative business operations
Professional practice in Montana (law, medicine, etc.)
Want to avoid sales tax compliance
Real estate investments in Montana
Outdoor recreation, tourism, or hospitality business
β οΈ Consider Delaware/Other States When:
Raising venture capital (VCs often prefer Delaware C-corps)
Planning to go public (Delaware corporate law precedent)
No physical Montana presence (foreign qualification costs)
If your business is formed in another state but conducts business in Montana, you must register as a foreign entity (foreign LLC or foreign corporation) with Montana. This typically costs similar to domestic filing and requires annual reports.
"Doing business" in Montana generally includes:
Having a physical office or location in Montana
Employing workers in Montana
Regular, ongoing sales or services to Montana customers
Owning or leasing real property in Montana for business purposes
Quick Comparison: Montana Entity Types
This table provides a high-level comparison of Montana's business structures. Scroll horizontally on mobile devices.
Factor
Sole Prop
GP
LP
LLP
LLC
Series LLC
C-Corp
Close Corp
Benefit Corp
PC/PLLC
Liability Shield
β None
β Joint & several
β οΈ GPs: none; LPs: limited
β Yes (except own acts)
β Yes
β Yes (per series)
β Yes
β Yes
β Yes
β Yes (except malpractice)
Tax Default
Schedule C
K-1
K-1
K-1
Pass-through
Pass-through
C-corp
C-corp
C-corp
Varies
Formation Fee
$0
$0
$70
$70
$70
$70
$70
$70
$70
$70
Annual Report
β No
β No
β $20
β $20
β $20
β $20 (parent only)
β $20
β $20
β $20
β $20
Formality Level
Very low
Low
Medium
Medium
Low-Medium
Medium
High
Low-Medium
High
High
Best Use Cases
Solo, minimal risk
Small partnerships
Real estate, investors
Professional firms
Most businesses
Asset segregation
VC-backed, IPO
Family business
Social enterprise
Licensed pros
Montana Limited Liability Companies (LLCs) & Series LLCs
Standard LLC Formation
Montana LLCs are formed by filing Articles of Organization with the Montana Secretary of State under Title 35, Chapter 8 (Montana Limited Liability Company Act).
Required Content for Montana Articles of Organization
Requirement
Details
LLC Name
Must include "Limited Liability Company," "LLC," "L.L.C.," "LC," or similar per Β§35-8-103
Principal Office Address
Physical address (can be in or outside Montana)
Registered Agent
Name and physical Montana street address
Registered Office
Montana street address (no PO boxes)
Management Structure
Member-managed or manager-managed (optional to state)
Organizer
Name and signature of person forming the LLC
Filing Fees & Processing
Filing Method
Fee
Processing Time
Online (biz.sosmt.gov)
$70
1-3 business days
Mail
$70
5-10 business days
Operating Agreement
π Operating Agreement (Strongly Recommended):
While Montana does not require you to file an operating agreement, having a written operating agreement is strongly recommended. The operating agreement governs internal operations and member relationships.
Key provisions to address:
Member capital contributions and ownership percentages
Profit and loss allocation
Management structure (member-managed vs manager-managed)
Voting rights and quorum requirements
Transfer restrictions and buy-sell provisions
Dissolution and liquidation procedures
Annual Reports
Requirement
Details
Required?
β Yes
Fee
$20
Due Date
April 15 annually
Filing Method
Online via biz.sosmt.gov
Tax Treatment
β°οΈ Montana LLC Tax Classification:
Montana follows federal tax classification per Administrative Rule 42.23.702. LLCs are classified as:
Single-member LLC: Disregarded entity (Schedule C) by default; can elect C-corp or S-corp
Multi-member LLC: Partnership (Form 1065, K-1s) by default; can elect C-corp or S-corp
Montana Series LLCs
Montana is one of only 10 states that explicitly authorizes series LLCs. This powerful structure allows you to create multiple "series" (sub-LLCs) under one parent LLC, each with separate assets, liabilities, and members.
What is a Series LLC?
π Series LLC Structure:
A Montana Series LLC consists of:
Parent LLC: The master entity that forms the series
Individual Series: Separate "cells" or "series" within the parent, each with:
Its own assets and liabilities
Separate members (owners) and managers
Independent operations and business purposes
Liability segregation from other series
Series LLC Liability Protection
If statutory requirements are met, liabilities of one series are not enforceable against the assets of another series. This creates a "firewall" between series without needing separate LLCs.
Formation Requirements
Articles of Organization: Must include language establishing series structure and liability limitation provisions
Operating Agreement: Should define each series, its purpose, members, and asset allocation
Separate Accounting: Each series must maintain separate books and records
Notice Requirements: Third parties dealing with a series should receive notice of the series structure
Annual Reporting
β Major Advantage: Single Annual Report
Montana requires only one annual report for the parent LLC, not separate reports for each series. This provides significant cost savings compared to forming separate LLCs.
Fee: $20 annually for the parent (covers all series)
Savings example: 5 series = $20/year total vs. $100/year for 5 separate LLCs
Series LLC Use Cases
Industry
Use Case
Real Estate
Each property in separate series; one tenant's lawsuit can't affect other properties
Equipment Leasing
Each vehicle or equipment fleet in separate series
Franchising
Each franchise location in separate series
Investment Funds
Each investment strategy or fund vintage in separate series
Intellectual Property
Each patent, trademark, or copyright in separate series
Series LLC vs. Separate LLCs
Factor
Series LLC
Separate LLCs
Formation Cost
$70 (one filing)
$70 Γ number of LLCs
Annual Reports
$20 (one report)
$20 Γ number of LLCs
Liability Segregation
β Yes (if requirements met)
β Yes (absolute)
Administrative Burden
Lower (one entity)
Higher (multiple entities)
Flexibility
Easy to add/remove series
Must form/dissolve each LLC
Banking
May need explanation to banks
Standard process
Professional Limited Liability Companies (PLLCs)
Montana allows licensed professionals to form Professional LLCs (PLLCs) for the practice of their profession, subject to the same ownership and licensing restrictions as Professional Corporations.
Who May Form a PLLC
Licensed attorneys
Physicians and surgeons
Dentists
Accountants (CPAs)
Architects
Engineers
Veterinarians
Other licensed professionals (check with licensing board)
PLLC Requirements
Members: All members must be licensed in the same profession
Managers: If manager-managed, managers must be licensed professionals
Name: Must include "PLLC" or "Professional Limited Liability Company"
Liability: No shield for own malpractice; PLLC protects from other members' malpractice and general business debts
Montana Corporations
Standard For-Profit Corporation
Corporations are formed under the Montana Business Corporation Act (Title 35, Chapter 14) by filing Articles of Incorporation with the Montana Secretary of State.
Required Content for Articles of Incorporation
Corporate name (must include "Corporation," "Incorporated," "Company," "Limited," or abbreviation: Corp., Inc., Co., Ltd.)
Number of authorized shares (and classes/series if more than one)
Registered agent name and Montana street address
Registered office address (street address in Montana)
Incorporator(s) name and signature
Purpose (may state general purpose or specific business)
Filing Fee
Articles of Incorporation: $70
Processing: Online filings typically processed within 1-3 business days
Annual Reports
Requirement
Details
Required?
β Yes
Fee
$20
Due Date
April 15 annually
Filing Method
Online via biz.sosmt.gov
Corporate Governance
Shareholders: Elect directors, approve major transactions
Board of Directors: Manage business and affairs; delegate to officers
Officers: CEO/President, Secretary, Treasurer, etc.; appointed by board
Bylaws: Required (not filed; kept in corporate records)
Entity-level tax on corporate income; dividends taxed to shareholders (double taxation)
S-Corporation (election)
Pass-through tax; income flows to shareholders on K-1; must meet IRS eligibility (β€100 shareholders, all U.S. individuals/estates/trusts, one class of stock)
Nonprofit Corporations
Montana nonprofit corporations are governed by Title 35, Chapter 2. Montana recognizes three types of nonprofit corporations:
Types of Montana Nonprofits
Public Benefit Nonprofit
Charitable or public-purpose organizations
No distributions to members
Assets go to public/charitable purposes on dissolution
Eligible for 501(c)(3) status
Mutual Benefit Nonprofit
Primarily benefits its members
Trade associations, clubs, chambers
Members may receive distributions on dissolution
Membership may be transferable
Religious Corporation
Formed for religious purposes
Treated similarly to public benefit nonprofits
May qualify for 501(c)(3) status
Special governance considerations
Formation
Filing: Articles of Incorporation with Montana Secretary of State
Fee: $70 (same as for-profit)
Purpose: Must specify charitable, educational, religious, scientific, or other nonprofit purpose
Annual Reports
Required: Yes
Fee: $20
Due: April 15 annually
Federal Tax-Exempt Status
β οΈ State Formation β Federal Tax Exemption:
Forming a Montana nonprofit corporation does not automatically grant federal tax-exempt status. To obtain 501(c)(3) or other tax-exempt status:
File IRS Form 1023 (501(c)(3) application) or Form 1024 (other exemptions)
Application fee: $275 or $600 depending on organization size
Meet IRS requirements for charitable/exempt purposes, governance, and operations
Obtain IRS determination letter confirming exemption
Specialized Corporation Types
Statutory Close Corporation
Montana's Close Corporation Act (Title 35, Chapter 9) provides a streamlined corporate structure for small, closely-held companies.
What is a Close Corporation?
π Close Corporation Features:
A Montana close corporation is designed for small businesses with a limited number of shareholders who want to:
Operate with relaxed formalities (e.g., no board of directors required)
Allow shareholders to manage directly via shareholder agreements
Impose restrictions on share transfers (other shareholders often have approval or buy-out rights)
Avoid traditional corporate governance burdens while maintaining limited liability
Formation
Articles of Incorporation must state: "This corporation is a statutory close corporation"
Filing fee: $70 (same as standard corporation)
Montana Business Corporation Act applies unless inconsistent with Chapter 9
Key Advantages
Feature
Standard Corporation
Close Corporation
Board of Directors
Required
Optional (shareholders can manage directly)
Annual Meetings
Required
Can be waived by unanimous consent
Share Transfers
Generally unrestricted
May impose substantial restrictions
Shareholder Agreements
Limited scope
Can control all aspects of management
Formality Level
High
Low to Medium
Best Use Cases
Family-owned businesses
Small businesses with 2-10 shareholders
Companies that want corporate structure but LLC-like simplicity
Situations where S-corp election is desired with minimal formalities
Benefit Corporation / Public Benefit Corporation
Montana enacted the Benefit Corporation Act (Title 35, Chapter 1, Part 14) in 2015, allowing corporations to pursue both profit and public benefit.
What is a Benefit Corporation?
β°οΈ Montana Benefit Corporation Purpose:
A Montana benefit corporation must create "general public benefit" and may specify one or more specific public benefits in its articles. General public benefit means a material positive impact on society and the environment, assessed against third-party standards.
Specific public benefits may include:
Providing beneficial products or services to underserved communities
Certified B Corporations wanting legal alignment with certification
Professional Entities
Professional Corporations (PCs)
Montana's Professional Corporation Act (Title 35, Chapter 4) authorizes Professional Corporations for licensed professionals.
Who May Form a Professional Corporation
Attorneys
Physicians and surgeons
Dentists
Chiropractors
Veterinarians
Certified Public Accountants (CPAs)
Architects
Professional Engineers
Other licensed professionals (consult licensing board)
Formation & Ownership Restrictions
Purpose: PC must be organized solely for practice of licensed profession (Β§35-4-109)
Shareholders: Only licensed professionals in same field (or entities composed of them)
Directors/Officers: Majority of directors and officers must be licensed professionals (except secretary/assistant secretary)
Name: Must comply with licensing board rules (typically "P.C." or "Professional Corporation")
Filing fee: $70 (same as regular corporation)
Powers: Has essentially same powers as business corporation, subject to professional-practice limitations (Β§35-4-401)
Liability
π¨ No Malpractice Shield:
A professional corporation does not shield individual professionals from personal liability for their own malpractice or negligence. The PC limits liability for:
Other professionals' malpractice
General business debts
Each professional remains personally liable for their own professional acts.
Professional LLCs (PLLCs)
Montana allows licensed professionals to form Professional LLCs, which are subject to the same licensing and ownership restrictions as Professional Corporations but with LLC structure and flexibility.
PLLC Requirements
Members: All members must be licensed in the same profession
Managers: If manager-managed, managers must be licensed professionals
Name: Must include "PLLC" or "Professional Limited Liability Company"
Liability: No shield for own malpractice; PLLC protects from other members' malpractice and general business debts
Formation fee: $70
Annual report: $20
Professional LLPs (PLLPs)
Professional Limited Liability Partnerships are LLPs whose name includes "Professional Limited Liability Partnership" or "PLLP" per Β§35-10-703.
PLLP Features
Used by professional firms wanting partnership tax treatment with liability protection
Common for law firms and accounting firms
Partners shielded from other partners' malpractice
Each partner remains liable for own professional acts
PC vs. PLLC vs. PLLP Comparison
Factor
Professional Corporation (PC)
Professional LLC (PLLC)
Professional LLP (PLLP)
Structure
Corporation
LLC
Partnership
Tax default
C-corp (can elect S-corp)
Pass-through (can elect C/S-corp)
Partnership (K-1s)
Formality
High (board, bylaws, minutes)
Medium (operating agreement)
Medium (partnership agreement)
Formation fee
$70
$70
$70
Annual report
$20
$20
$20
Liability shield
Yes (except own malpractice)
Yes (except own malpractice)
Yes (except own malpractice)
Best for
Traditional firms; S-corp planning
Modern firms; flexibility
Law/accounting firms; K-1 treatment
Partnerships
General Partnership
Formation
Statute: Montana Uniform Partnership Act, Title 35, Chapter 10
No formal filing required: Partnership arises by agreement (oral or written) or by conduct
Optional: May file assumed business name (ABN) with SOS if using trade name
Liability
π¨ Joint & Several Liability:
Each partner is jointly and severally liable for all partnership debts and obligations per Β§35-10-307. One partner's actions can bind the entire partnership and expose all partners to personal liability.
Limited Partnership (LP)
Structure
Statute: Montana Uniform Limited Partnership Act, Title 35, Chapter 12
General partners: Manage partnership; unlimited personal liability (unless LLLP)
Limited partners: Contribute capital; limited liability per Β§35-12-703
Limited Partner Liability Protection
β Montana LP Liability Rule:
Under Β§35-12-703, limited partners are not personally liable for partnership debts solely by reason of being limited partners, even if they participate in management. This is a significant protection compared to older LP statutes in other states.
Formation
Filing: Articles of Limited Partnership with Montana Secretary of State
Fee: $70
Annual report: Required ($20/year, due April 15)
Limited Liability Partnership (LLP)
Formation
Statute: Title 35, Chapter 10, Part 7 β Registration of Limited Liability Partnerships
Filing: Application for Registration of Limited Liability Partnership with Montana SOS (Β§35-10-701)
Fee: $70
Name requirement: Must contain "Limited Liability Partnership," "LLP," or "L.L.P." (or "PLLP" for professional) per Β§35-10-703
Liability Protection
LLP partners are generally shielded from obligations of the partnership except for their own misconduct or that of persons under their supervision. Each partner remains liable for their own acts.
Best Use Cases
Law firms: Lawyers want protection from other partners' malpractice
Accounting firms: CPAs shielded from co-partner negligence
Architecture/engineering firms: Professional liability isolation
Consulting firms: Professional services with partnership tax treatment
Limited Liability Limited Partnership (LLLP)
Montana recognizes LLLPs under Β§35-12-1501 β limited partnerships where even general partners have limited liability protection.
Features
Formation: File as LP with LLLP designation
Benefit: All partners (GPs and LPs) have limited liability
Fee: $70
Use case: Real-estate funds, family investment vehicles, private equity where GP wants liability protection
Partnership Comparison
Factor
General Partnership
LP
LLP
LLLP
Filing Required?
β No
β Yes
β Yes
β Yes
Formation Fee
$0
$70
$70
$70
GP Liability
β Unlimited
β Unlimited
β Limited
β Limited
LP/Partner Liability
N/A (all partners unlimited)
β Limited (even with mgmt)
β Limited (except own acts)
β Limited
Management
All partners
GPs only
All partners
GPs only
Annual Report
β No
β $20
β $20
β $20
Best Use Case
Small, informal partnerships
Passive investors + active GPs
Professional firms
RE funds, PE with GP protection
Special Entity Types
Cooperative Associations
Montana has a comprehensive Cooperative Associations Act (Title 35, Chapter 15) providing for member-owned business entities.
What is a Cooperative?
π Cooperative Features:
Member ownership: Members own and democratically control the cooperative
One-member-one-vote: Typically follows democratic governance norms
Patronage distributions: Profits distributed based on use/patronage, not ownership percentage
Filing: Articles of Incorporation for Cooperative with Montana SOS
Fee: $70
Governance: Follows cooperative-specific rules in Chapter 15
Foreign Cooperatives
Out-of-state cooperatives doing business in Montana must follow foreign-corporation qualification provisions in Title 35, Chapter 1, Part 10.
Rural Cooperative Utilities
Montana's Rural Cooperative Utilities statute (Title 35, Chapter 18) provides for formation and governance of rural electric and similar utility cooperatives serving rural areas.
Special governance and regulatory rules
Formed to provide utility services (electric, water, telecommunications) to rural communities
Member-owned, not-for-profit structure
Business Trusts
Montana's Business Trusts statute (Title 35, Chapter 5) authorizes business trusts as entities under Montana law.
Features
Less common entity type
Used for investment vehicles or holding structures
Trustees manage assets for benefit of beneficiaries
Can be useful for asset protection or specialized investment structures
Religious Corporation Sole
Montana's Religious Corporations Sole statute (Title 35, Chapter 3) allows certain religious offices to incorporate as a "corporation sole."
Purpose
Allows religious leaders (e.g., bishop, presiding elder) to incorporate individually
Corporate entity holds property and transacts on behalf of religious body
Provides continuity as office passes to successors
Protects religious property and assets
Assumed Business Names (ABN) / DBAs
While not a separate entity type, Assumed Business Names (also called DBAs β "doing business as") are an important registration:
What is an ABN?
Trade name under which a person or entity does business
Not a separate entity β just a name registration
Must be distinguishable from existing business names/marks on SOS records
Who Can Use ABNs?
Sole proprietors (most common use)
Corporations
Partnerships
LPs, LLCs, LLPs
Associations
Example
John Smith (sole proprietor) wants to operate "Big Sky Coffee Roasters." He files an ABN registration with the Montana SOS. The business is still John Smith (sole proprietor) β "Big Sky Coffee Roasters" is just the trade name.
Formation Process & Fee Summary
Montana Filing Fees Summary
Service
Fee
Notes
LLC Articles of Organization
$70
Online or mail
Series LLC Articles of Organization
$70
One filing for parent + all series
Corporation Articles of Incorporation
$70
For-profit, close, or benefit corp
Nonprofit Articles of Incorporation
$70
Public benefit, mutual benefit, or religious
Professional Corporation (PC)
$70
Same as for-profit corp
Professional LLC (PLLC)
$70
Same as standard LLC
Limited Partnership (LP)
$70
Articles of Limited Partnership
LLP Registration
$70
Application for Registration
LLLP Formation
$70
LP with LLLP designation
Cooperative Association
$70
Articles of Incorporation
Foreign LLC/Corp Registration
$70
Certificate of Authority
Name Reservation
$10
120 days
Assumed Business Name (ABN)
$20
DBA / trade name
Certificate of Good Standing
$5
Per certificate
Certified Copy
$5
Per document
Annual Report Fees
Entity Type
Annual Report Fee
Due Date
LLC (domestic or foreign)
$20
April 15
Series LLC (parent)
$20
April 15 (covers all series)
Corporation (for-profit)
$20
April 15
Close Corporation
$20
April 15
Benefit Corporation
$20
April 15
Professional Corporation (PC)
$20
April 15
Nonprofit Corporation
$20
April 15
Limited Partnership (LP)
$20
April 15
LLP / PLLP
$20
April 15
LLLP
$20
April 15
General Partnership
β No report required
N/A
Step-by-Step Formation: LLC Example
Montana LLC Formation Checklist
Choose LLC name (must include LLC/L.L.C./LC)
Check name availability on biz.sosmt.gov
Optional: Reserve name ($10 for 120 days)
Appoint registered agent (Montana resident or entity with MT address)
Draft operating agreement (strongly recommended; not filed)
File Articles of Organization online at biz.sosmt.gov ($70)
Obtain EIN from IRS (free, apply online at irs.gov)
Open business bank account
Register for Montana taxes (if applicable)
Obtain business licenses/permits as required
File first annual report by April 15 of following year ($20)
Step-by-Step Formation: Series LLC Example
Montana Series LLC Formation Checklist
Choose parent LLC name and series names
Draft Articles of Organization with series language and liability-limitation provisions
Draft operating agreement defining each series, members, assets, and operations
File Articles of Organization for parent LLC online ($70)
Maintain separate accounting for each series
Provide notice to third parties dealing with individual series
Obtain EIN for parent (and potentially for each series if needed)
File single annual report for parent ($20 covers all series)
Ongoing Compliance & CTA/BOI Status
Annual Compliance Requirements
Entity Type
Annual Report Required?
Fee
Due Date
LLC (domestic)
β Yes
$20
April 15 annually
Series LLC (parent)
β Yes
$20 (covers all series)
April 15 annually
Foreign LLC
β Yes
$20
April 15 annually
Corporation (for-profit)
β Yes
$20
April 15 annually
Close Corporation
β Yes
$20
April 15 annually
Benefit Corporation
β Yes
$20
April 15 annually
Nonprofit Corporation
β Yes
$20
April 15 annually
Professional Corporation
β Yes
$20
April 15 annually
Limited Partnership
β Yes
$20
April 15 annually
LLP / PLLP
β Yes
$20
April 15 annually
General Partnership
β No
N/A
N/A
π April 15 Deadline:
Montana requires annual reports for all LLCs, corporations (including nonprofits, close corps, benefit corps), LPs, and LLPs. All reports are due by April 15 each year and filed online at biz.sosmt.gov.
Other Ongoing Requirements
All Montana Entities Must:
Maintain registered agent and registered office in Montana
File annual reports by April 15 (if required)
Keep internal records (operating agreements, bylaws, etc.)
Comply with Montana tax filings
Maintain separate bank accounts
Update filings if name, RA, or address changes
Corporations Specifically Must:
Hold annual shareholder meetings (unless close corporation waives)
Hold board meetings (unless close corporation operates without board)
Maintain corporate records book
Issue stock certificates
Document resolutions for major decisions
Benefit Corporations Must Also:
Prepare annual benefit report assessing public benefit performance
Use third-party standard for assessment (e.g., B Impact Assessment)
Provide benefit report to shareholders (not filed with state)
Consider stakeholder interests in director decisions
Corporate Transparency Act (CTA) & Beneficial Ownership Information (BOI)
β Major Update (March 2025):
FinCEN issued an interim final rule that removed BOI reporting requirements for all U.S. companies and U.S. persons under the Corporate Transparency Act.
Domestic Montana entities (LLCs, corporations, partnerships formed in Montana):NO BOI reporting required as of March 2025
This eliminates federal beneficial ownership reporting burden for Montana businesses
Foreign Reporting Companies (Still Subject to BOI)
β οΈ Foreign entities registered in Montana:
Entities formed under foreign law (e.g., Canadian corporation, Cayman Islands LLC) that register to do business in Montana are still BOI reporting companies unless they qualify for a statutory exemption.
Deadlines for foreign reporting companies:
Already registered before March 21, 2025: April 25, 2025
Register on or after March 21, 2025: 30 days after registration
CTA/BOI Summary by Montana Entity Type
Entity Type
BOI Reporting Required?
Montana LLC (domestic)
β No (exempt as of March 2025)
Montana Series LLC (domestic)
β No (exempt as of March 2025)
Montana Corporation (domestic)
β No (exempt as of March 2025)
Montana Benefit Corporation (domestic)
β No (exempt as of March 2025)
Montana Partnership (domestic)
β No (exempt as of March 2025)
Foreign entity registered in Montana
β Yes (unless exempt)
My Services β Montana Entity Formation
I handle Montana entity formations as an attorney-led service. You work directly with meβan experienced business attorneyβthrough the entire process.
What's included: State filing fees and a registered agent (state requirement) fee for one year. A company (LLC or Corporation) formed in one of the standard-fee states (DE, CA, WY, SC) at the base price. Formation in premium-fee states (TX, MA, NV, NY, IL, TN, NE, MT) is available with an additional fee to cover higher state costs and specialized structures.
β°οΈ Montana Specialized Structures:
My Montana formation services include expertise with:
Series LLCs: Asset segregation structures with single annual report
Benefit Corporations: Mission-driven companies with stakeholder governance
Close Corporations: Flexible structure for family businesses
Professional Entities: PCs, PLLCs, and PLLPs for licensed professionals
Cooperative Associations: Member-owned business structures
Service Packages
Starter
$500
Best for: Single-owner businesses or simple partnerships using standard templates with basic information inserted.
Delivery Time
14 days
Number of Revisions
0
Includes:
EIN (Tax ID Number)
Basic Bylaws/Operating Agreement
Standard
$750
Perfect for: Most businesses requiring customized founding documents with professional guidance on entity type, state selection, and taxation.
Delivery Time
5 days
Number of Revisions
2
Includes:
EIN (Tax ID Number)
Customized Bylaws/Operating Agreement
30min Consultation
Advanced
$850
Ideal for: Complex business structures requiring sophisticated legal frameworks, multiple owners, investors, or specialized provisions.