How to Start an LLC in the USA: A Complete Step-by-Step Guide

Starting a Limited Liability Company (LLC) in the United States is one of the most popular ways for entrepreneurs-both US-based and international-to establish a formal, protected business presence in one of the world's largest and most accessible business markets. An LLC offers a useful balance of simplicity, flexibility and protection. But with 50 states to choose from and a range of steps to navigate, the process can feel overwhelming if you have never done it before.

This guide breaks down how to form your LLC in the USA, step by step, so you know what to expect and can move forward with confidence.

What is an LLC and why should you form one?

An LLC is a legal business entity that generally provides personal liability protection to its owners, called members, while offering a flexible management and tax structure.

Core benefits can include:

Personal liability protection: personal assets are generally separated from business debts and lawsuits.
Flexible taxation: the default federal tax treatment depends on the number of members, and qualifying LLCs may elect a different classification.
Flexible management: members can manage the company or appoint managers.
Professional credibility with clients, banks and vendors.
A formal entity through which to conduct US business.

Tax and liability outcomes depend on your facts. Consult qualified legal and tax professionals for advice specific to you.

Step 1: Choose your state

You may form an LLC in any US state or Washington, D.C. The best choice is usually the state where the business will actually operate. Forming elsewhere can create an additional foreign-qualification obligation in your operating state.

Common considerations include:

Your home state, especially if you physically operate there.
Delaware, known for an established body of business law and specialist courts.
Wyoming, often considered by remote and international founders for its fee and privacy framework.
The filing fee, annual fee, franchise tax, reporting cycle and public-disclosure requirements of each state.

Do not choose a state based only on a popular online recommendation. An attorney or CPA can assess the total cost and legal implications.

Step 2: Choose your LLC name

Your name must be distinguishable from existing entities in the formation state and normally include “Limited Liability Company,” “LLC” or another permitted abbreviation.

State rules generally require that:

The name is not confusingly similar to an existing registered entity.
Restricted words such as “bank” or “insurance” are not used without approval.
The correct LLC designator is included.

Check the relevant Secretary of State database before filing. A state-level check does not replace a trademark search.

Step 3: Appoint a Registered Agent

Every US LLC must maintain a Registered Agent in its formation state. The agent receives service of process and official government correspondence for the company.

You can sometimes act as your own agent if you have an eligible physical address and are reliably available during business hours. A professional service can help founders:

Keep a personal address off the public filing where permitted.
Receive and route documents when they are travelling or unavailable.
Maintain coverage in more than one state.
Track important notices and deadlines.

Step 4: File your Articles of Organization

The Articles of Organization-also called a Certificate of Organization or Certificate of Formation in some states-is the filing that creates the LLC.

Information commonly requested includes:

LLC name.
Registered Agent name and address.
Principal business or mailing address.
Member or manager information where required.
Management structure and a permitted business-purpose statement.

State fees and processing times vary substantially. Confirm both with the relevant state immediately before filing.

Step 5: Create an Operating Agreement

An Operating Agreement is the internal document that governs how the LLC operates. Even where it is not filed with the state, it is strongly recommended-including for single-member LLCs.

It commonly addresses:

Ownership percentages and capital contributions.
Voting and decision-making authority.
Profit and loss allocations.
Member and manager responsibilities.
Adding, withdrawing or removing members.
Transfers, succession and dissolution.

Step 6: Obtain your EIN

An Employer Identification Number is issued by the IRS and is commonly needed to open a business bank account, hire employees, file returns and complete business transactions.

Eligible applicants can use the IRS online EIN application and receive a number after completing the session. International applicants and other applicants who cannot use the online tool may apply using Form SS-4. The IRS currently states that properly completed fax applications generally receive a response in about four business days, while mail applications take approximately four weeks. Always check the current IRS Form SS-4 instructions before applying.

Step 7: Open a business bank account

After formation and EIN issuance, open an account in the LLC's legal name. Keeping personal and business transactions separate supports accurate accounting and helps preserve the separation between the member and the company.

Banks set their own eligibility and verification rules. International founders should confirm required identity, address and ownership documents before choosing a provider.

Step 8: Stay compliant

Formation is the beginning of the compliance lifecycle. Depending on the state, owners and activities, an LLC may need to manage:

Annual or biennial reports.
State fees, franchise taxes and business licences.
Federal, state and local tax filings.
Registered Agent and address changes.
Foreign qualification in additional states.

In March 2025, FinCEN removed federal BOI reporting requirements for US-created entities and US persons under its interim final rule. Certain foreign entities registered to do business in the United States may still have obligations. Confirm the current position on FinCEN's official BOI page because requirements can change.

Cost and timing variables

State filing fees, processing options, annual charges and franchise taxes differ by jurisdiction and can change. Registered Agent, address, licence, tax, professional and banking costs are separate from the formation filing. Ask for a written breakdown that distinguishes authority-controlled fees, provider fees, renewals and optional work.

Approval timing is controlled by the state and may be affected by filing method, workload, name issues, incomplete information or requests for correction. EIN, banking, tax registration and licences follow separate processes, so a company should not promise customers or sign time-sensitive commitments based only on an estimated formation date.

Additional planning for international founders

International founders should confirm tax residency, ownership, the responsible party for the EIN, US address needs, banking eligibility, payment-provider rules and where the business will actually be managed. A US LLC does not itself provide immigration status, a bank account, tax exemption or access to every marketplace.

Home-country reporting and tax treatment may be very different from US default classification. Coordinate the proposed structure with qualified advisers who understand the relevant countries before transferring intellectual property, signing major contracts or accumulating revenue.

Common mistakes to avoid

Forming in a popular state without comparing the state where the business will operate.
Using an address for a purpose the provider does not permit.
Leaving ownership and decision rules undocumented.
Mixing personal and business transactions.
Missing the first annual report, state charge, licence or tax registration.
Assuming the formation provider is also providing legal, tax or accounting advice.
Losing access to the filing account, EIN notice or Registered Agent portal.

Create a permanent company record containing the filed Articles, approval evidence, Operating Agreement, EIN notice, ownership record, key consents, licences, tax registrations and compliance calendar. Record who owns each account and how access is recovered.

Conclusion

Starting a US LLC does not need to be confusing. Choose the right state, confirm the name, appoint a Registered Agent, file the formation document, establish an Operating Agreement, obtain an EIN and create a reliable compliance calendar.

RevoCompliance can coordinate the filing and supporting steps while you focus on building the business.