How to Start an LLC in Montana

Starting an LLC in Montana gives you business flexibility with strong asset protection at one of the most affordable filing fees in the country. Montana’s streamlined process and business-friendly environment make it an excellent choice for entrepreneurs looking to establish their company quickly and cost-effectively.

This complete guide walks you through exactly how to start an LLC in Montana, from choosing your business name to maintaining ongoing compliance with state requirements.

Table of Contents

• Step 1: Choose Your LLC Name
• Step 2: Appoint a Registered Agent
• Step 3: File Articles of Organization
• Step 4: Create an Operating Agreement
• Step 5: Get Your Federal EIN
• Step 6: Ongoing Compliance Requirements
• Montana LLC Cost Breakdown
• Frequently Asked Questions

Step 1: Choose Your LLC Name

Your Montana LLC name must follow specific state requirements and be available for use. The name you choose becomes your legal business identity and appears on all official documents, contracts, and business dealings.

Montana LLC Name Requirements

Montana requires your LLC name to include one of these designations:

• “Limited Liability Company”
• “LLC”
• “L.L.C.”

Your name cannot be identical or confusingly similar to existing Montana business entities. It also cannot include restricted words that suggest banking, insurance, or professional services without proper licensing.

Check Name Availability

Before filing your Articles of Organization, verify your desired name is available through the Montana Secretary of State’s business entity search. This free online database shows all registered business names in Montana.

If you need time to prepare your filing documents, you can reserve your chosen name for 120 days by paying a $10 name reservation fee. This prevents other businesses from taking your preferred name while you complete the formation process.

For detailed guidance on Montana’s name requirements and search process, see our comprehensive Montana LLC name search guide.

Step 2: Appoint a Registered Agent

Montana law requires every LLC to maintain a registered agent who accepts legal documents and official correspondence on behalf of your business. This person or company must have a physical Montana address and be available during regular business hours.

Registered Agent Requirements

Your Montana registered agent must:

• Be at least 18 years old
• Have a physical street address in Montana (not a P.O. box)
• Be available during normal business hours Monday through Friday
• Accept service of process and official state correspondence

Registered Agent Options

You have three main options for your Montana registered agent:

Yourself: You can serve as your own registered agent if you have a Montana address and will be available during business hours. This costs nothing but ties you to that location and makes your address part of the public record.

A Friend or Employee: Any Montana resident who meets the requirements can serve as your registered agent. They must understand the responsibility and commitment involved.

Professional Service: A registered agent service provides reliability, privacy, and professionalism. They handle all legal documents, scan and forward mail, and maintain compliance calendars.

Professional registered agent services typically cost $125-$300 annually but provide peace of mind and keep your personal address private. For more details about Montana’s specific requirements, read our guide on Montana registered agent requirements.

Step 3: File Articles of Organization

The Articles of Organization officially creates your Montana LLC. This single-page document establishes your business as a legal entity and provides basic information about your company structure.

Required Information

Montana’s Articles of Organization requires these details:

• LLC name (including “LLC” or “Limited Liability Company”)
• Principal office address
• Registered agent name and Montana address
• Management structure (member-managed or manager-managed)
• Organizer information (person filing the documents)

Filing Methods and Fees

You can file your Montana Articles of Organization online or by mail. Both methods cost the same $35 filing fee, making Montana one of the most affordable states for LLC formation.

Online Filing: File directly through the Montana Secretary of State’s online portal. Upload your completed form, pay the $35 fee by credit card, and receive immediate confirmation of filing.

Mail Filing: Print and complete the Articles of Organization form, include a $35 check payable to “Montana Secretary of State,” and mail to:

Montana Secretary of State
Business Services Bureau
P.O. Box 202801
Helena, MT 59620-2801

Expedited Processing

Montana offers expedited processing for urgent filings:

• 24-hour processing: Additional $20 fee
• 1-hour processing: Additional $100 fee

Standard processing takes approximately 2 weeks for both online and mailed submissions.

Source: Montana Secretary of State, verified March 2026

Step 4: Create an Operating Agreement

While Montana doesn’t legally require an operating agreement, creating one protects your business and clarifies important operational details. This internal document governs how your LLC operates and helps maintain the legal separation between you and your business.

Why You Need an Operating Agreement

An operating agreement provides several critical benefits:

• Establishes ownership percentages and profit distributions
• Defines member roles, responsibilities, and voting rights
• Sets procedures for adding or removing members
• Protects limited liability status by demonstrating separate business operations
• Provides dispute resolution procedures
• Overrides default state LLC laws with custom provisions

Key Provisions to Include

Your Montana LLC operating agreement should address:

• Member information and ownership percentages
• Capital contributions and additional funding requirements
• Management structure and decision-making authority
• Profit and loss allocation
• Distribution policies
• Member meetings and voting procedures
• Transfer restrictions and buy-sell provisions
• Dissolution procedures

You can draft your operating agreement yourself, use templates, or work with an attorney for complex situations. Keep this document with your business records but don’t file it with the state.

Step 5: Get Your Federal EIN

An Employer Identification Number (EIN) serves as your LLC’s federal tax identification number. You need an EIN to open business bank accounts, file tax returns, hire employees, and handle most business banking and tax matters.

When You Need an EIN

You need an EIN if your Montana LLC:

• Has more than one member
• Has employees
• Elects corporate tax treatment
• Plans to open business bank accounts (most banks require it)

Single-member LLCs without employees can use the owner’s Social Security Number for tax purposes, but most still obtain an EIN for business banking and privacy protection.

How to Apply for an EIN

Apply for your EIN directly with the IRS using their online application system. The process is free and takes about 10 minutes. You’ll receive your EIN immediately upon completion.

You can also apply by fax, mail, or phone, but online application provides the fastest results. Avoid third-party services that charge fees for this free government service.

Step 6: Ongoing Compliance Requirements

After forming your Montana LLC, you must meet ongoing state requirements to maintain good standing and preserve your limited liability protection.

Annual Report Filing

Montana requires all LLCs to file an annual report by April 15th each year. The report updates your business information and confirms your LLC remains active.

Annual report fees depend on when you file:

• $20 if filed by April 15th deadline
• $35 if filed after April 15th

The report includes basic information like registered agent details, principal office address, and member/manager information. File online through the Montana Secretary of State portal for fastest processing.

Montana LLC Tax Obligations

Montana LLCs face several tax responsibilities:

State Income Tax: Montana imposes state income tax on LLC profits at rates ranging from 1% to 6.75%. LLCs are pass-through entities, so profits and losses flow to members’ personal tax returns.

Federal Taxes: Single-member LLCs file Schedule C with their personal return. Multi-member LLCs file Form 1065 and issue K-1s to members.

Sales Tax: If your LLC sells taxable goods or services, you must register for Montana sales tax and file returns.

Employment Taxes: LLCs with employees must pay federal and state employment taxes, unemployment insurance, and workers’ compensation.

For comprehensive tax guidance, see our detailed guide on Montana LLC taxes.

Maintaining Limited Liability Protection

Preserve your LLC’s liability protection by:

• Keeping business and personal finances completely separate
• Maintaining proper business records and documentation
• Following your operating agreement provisions
• Filing required reports and paying taxes on time
• Using your full LLC name on all business documents

Montana LLC Cost Breakdown

Here’s a complete breakdown of Montana LLC formation and maintenance costs:

Fee Type	Cost	When Due
Articles of Organization	$35	At filing
Name Reservation (optional)	$10	Before filing
24-hour expedited processing	+$20	At filing
1-hour expedited processing	+$100	At filing
Annual Report (on time)	$20	By April 15
Annual Report (late)	$35	After April 15
Amendment	$15	When needed
Certificate of Existence	$5	When needed
DBA Filing	$20	When needed
Dissolution	$0	When dissolving

Additional Costs to Consider

Beyond state filing fees, budget for these optional but recommended services:

Registered Agent Service: $125-$300 annually for professional service

Business Bank Account: Monthly fees vary by bank and account type

Business Insurance: General liability insurance typically costs $400-$800 annually

Accounting Software: $15-$50 monthly for bookkeeping and tax preparation

Source: Montana Secretary of State, verified March 2026

Professional Formation Services

While you can file Montana LLC formation documents yourself, many business owners choose professional formation services for convenience, speed, and additional features like registered agent service and compliance support.

Top Montana LLC Formation Services

Here are the leading formation services for Montana LLCs:

Northwest Registered Agent: $39 + state filing fee with same-day filing and premium registered agent service. Known for excellent customer support and compliance tools.

ZenBusiness: $0 + state filing fee for their Starter plan, with 2-3 weeks standard processing or 1-2 days for rush service.

LegalZoom: $0 + state filing fee for Basic plan with 7-10 business day processing and comprehensive business resources.

Bizee: $0 + state filing fee with next business day processing and user-friendly dashboard.

Inc Authority: $0 + state filing fee with 3-5 business day processing and lifetime customer support.

Essential Business Services for Your Montana LLC

After forming your LLC, you’ll need several key business services to operate effectively and maintain compliance.

Business Banking

Opening a separate business bank account is crucial for maintaining the legal separation between your LLC and personal finances. This separation protects your limited liability status and simplifies bookkeeping and tax preparation.

Look for banks that offer:

• No monthly maintenance fees
• Reasonable transaction limits
• Online banking and mobile deposit
• Integration with accounting software
• Local branch access if needed

Business Accounting

Proper bookkeeping helps you track income and expenses, prepare for tax season, and make informed business decisions. Many LLC owners start with simple accounting software and upgrade as their business grows.

Essential accounting features include:

• Income and expense tracking
• Invoice creation and management
• Tax document preparation
• Financial reporting
• Bank account integration

Business Insurance

While your LLC structure provides liability protection, business insurance adds another layer of protection against lawsuits, property damage, and other business risks.

Most Montana LLCs should consider:

• General liability insurance
• Professional liability insurance (for service businesses)
• Property insurance (if you have business assets)
• Cyber liability insurance (for businesses handling data)

Frequently Asked Questions

How much does it cost to start an LLC in Montana?

The minimum cost to start a Montana LLC is $35 for the state filing fee. If you use a professional formation service, expect to pay $39-$300 in service fees plus the state filing fee. Additional costs may include registered agent service ($125-$300 annually) and other business services.

How long does it take to form an LLC in Montana?

Standard processing takes approximately 2 weeks for both online and mailed filings. Montana offers expedited processing for an additional fee: 24-hour processing costs an extra $20, while 1-hour processing costs an extra $100.

Do I need a registered agent for my Montana LLC?

Yes, Montana law requires all LLCs to maintain a registered agent with a physical Montana address. You can serve as your own registered agent, appoint someone else, or hire a professional registered agent service.

Can I change my Montana LLC name after filing?

Yes, you can change your LLC name by filing an Amendment to Articles of Organization with the Montana Secretary of State. The amendment costs $15 and typically processes within 2 weeks. Make sure to check name availability before filing the amendment.

What taxes does a Montana LLC pay?

Montana LLCs are subject to state income tax on profits at rates from 1% to 6.75%. As pass-through entities, profits and losses flow to members’ personal tax returns. LLCs may also need to pay sales tax, employment taxes, and federal taxes depending on their activities and structure.

This information is for educational purposes only and does not constitute legal or financial advice. Filing fees and requirements change : always confirm current fees with your state’s Secretary of State office.