What Is an LLC in the USA? A Clear Guide for Argentinians

If you are starting a business from Argentina and selling services, software, or products abroad, you have probably wondered what an LLC in the USA is and whether it really solves your operational needs. There is a lot of noise online: people promising that a US entity means you will stop paying taxes or that a bank account will open itself. The reality is very different. An LLC (Limited Liability Company) is an excellent vehicle for structuring your international business and separating your personal finances from your business finances, but it does not guarantee bank accounts, payment gateways, or automatic tax reductions.

How an LLC Really Works

The first thing we usually clarify is that an LLC is not an identical federal structure throughout the country: it is an entity regulated at the state level. Each state has its own formation rules, maintenance costs, fees, and reports.

As the IRS explains in its official documentation on LLCs, owners are not called shareholders, but members (members). You can create an LLC with a single member or partner with several.

Its main appeal is limited liability: it seeks to create a barrier between the business’s assets and your personal assets against certain company debts or lawsuits. But that protection is never automatic or absolute; it depends on how you manage the company, whether you keep personal and corporate funds separate, and whether you keep the documentation in order. Specific liability situations always require legal evaluation.

Its Tax Classification Before the IRS

Something that confuses many founders is that “LLC” defines a state legal structure, not a fixed tax category for the federal government.

The IRS establishes that, by default, a domestic single-member LLC is considered an entity that is not separate (disregarded entity) from its owner for certain federal taxes. If it has two or more members, it is classified by default as a partnership (partnership), unless it formally elects to be taxed as a corporation.

These classifications address filing with the US tax authorities, but they do not determine how you must pay taxes in Argentina. The type of activity, your clients’ physical location, where you manage day-to-day operations, and your tax elections completely change the picture.

What It Provides in Practice to an Argentinian Founder

If you run an agency, develop software, provide consulting, create content, or sell online abroad, an LLC gives you a solid operating platform for entering the global market. On a day-to-day basis, it allows you to:

• Sign business contracts with clients and suppliers through a US entity.
• Issue invoices and business documentation with corporate backing.
• Completely separate your business records and transactions from your personal expenses.
• Apply for financial services and banking instruments compatible with nonresident partners.
• Connect international payment processors if your business model and company meet the requirements.

Be careful about taking things for granted: no bank or payment gateway approves accounts automatically. Each institution applies its own identity, risk profile, activity, and residency screening criteria. In addition, having an LLC does not give you a credit history, guarantee sales, or reduce your tax burden by itself.

What You Need to Form It

The exact process is determined by the Secretary of State or state office where you decide to register it. In general, the steps we follow and organize are:

1. Select the state and verify that the name is available.
2. Designate a registered agent with a legal physical address in that state.
3. File the formation documents (Articles of Organization) with the state authority.
4. Draft the operating agreement (Operating Agreement) to define control and ownership rules.
5. Obtain the tax identification numbers needed to operate in compliance with the rules.
6. Keep annual reports, state fees, and internal records up to date.

State fees are paid when filing the application and are nonrefundable. Before paying anything, review the requirements of the state you are considering. The SBA summarizes the different business structures, but the state authority is the one that approves the formation.

If you prefer to delegate all document and administrative management without complications, you can review our plans. Keep in mind that we handle the process, but we cannot guarantee the decisions of banks or state agencies.

EIN, ITIN, and Key Process Concepts

Along the way, you will encounter several acronyms that are important to understand:

• EIN (Employer Identification Number): This is the federal tax identification number that the IRS issues to the company. You need it to operate, but it is not the same as having an approved bank account or business license. You can see the step-by-step process in our guide on what the EIN is and how to apply for it from outside the United States.
• ITIN (Individual Taxpayer Identification Number): This is an individual tax number that the IRS assigns to people who need to report federal taxes and do not qualify for a Social Security number. Not every LLC owner necessarily needs one; it depends on the filings and obligations that arise in your case.
• Form 5472: This is an informational return required by the IRS to report certain transactions between a US corporation or foreign-owned single-member LLC and its related parties. It should be reviewed with a US tax advisor, since failing to file it carries significant penalties.

Your Obligations Between the United States and Argentina

The work does not end when the state approves your documents. Keeping an LLC active and compliant requires ongoing discipline:

• Comply with your state’s periodic fees and annual reports.
• File the relevant federal informational or tax returns.
• Keep orderly accounting records and retain receipts for every transaction.
• Keep your registered agent service active.
• Monitor licenses or permits if you begin operating physically in other states.

Regarding federal transparency, keep in mind that since March 2025 FinCEN has exempted entities formed in the United States, including domestic LLCs, from filing the beneficial ownership information report (BOI) under the Corporate Transparency Act. This obligation remains in place for certain foreign entities registered to do business there. Because regulatory frameworks change, check the current official information from FinCEN when operating.

On the local side, living in Argentina means that a company abroad does not erase your tax obligations in the country. Ownership of the LLC, its results, withdrawals of funds, and how you manage the company have a direct impact. ARCA establishes that individuals domiciled in Argentina who hold interests in foreign entities must comply with its information reporting regime on corporate interests.

Do not make the mistake of applying formulas designed for other countries. What we explain about what an LLC is and what to consider if you reside in Spain addresses European tax rules that do not apply in Argentina, just as analyzing an LLC in the United States from Mexico depends on specific treaties and laws. If you want a solid foundation in the general terminology before deciding, review what LLC means in the United States: a clear guide, and keep in mind that the criteria regarding what an LLC is if you live in Spain: a practical guide do not replace the local analysis you should conduct with an Argentinian accountant familiar with foreign structures.

How to Choose the State Without Following Trends

There is no perfect state for every project. When people ask us, we always recommend evaluating:

• What business activity you will actually conduct.
• Whether you will have physical inventory, offices, or employees in a specific state.
• Annual fees and state renewal costs.
• The frequency of required reports.
• Public-record privacy laws and their limits.
• Whether the company will need to register as a foreign entity in other states where it operates.

Choosing a state only because you saw it recommended on a forum can create unnecessary duplicate costs if your actual activity ends up tied to another jurisdiction.

Common Mistakes We See When Evaluating an LLC

• Believing it magically eliminates taxes: Taxation depends on your tax residency, the type of income, and how the company is classified. An LLC is not a tool for evasion.
• Mixing personal and business money: This is the most dangerous mistake. Paying daily personal expenses from the company account destroys the separation of assets and complicates any accounting statement.
• Registering the company without planning for maintenance: Opening the LLC is a procedure; maintaining it requires paying renewals, attending to the registered agent, and filing returns on time.
• Assuming Stripe or the bank will approve the account immediately: Each financial institution applies its own compliance screening. Forming the LLC is only a prerequisite, not a guarantee that an account will be opened.

When Does It Make Sense to Take the Step?

An LLC in the United States makes sense if you already have clients abroad, business contracts that require a corporate structure, or a specific operational need to collect payments and provide services globally. If you are only validating an idea without revenue or a clear international market, the fixed maintenance costs may be an unnecessary burden.

If your project is already underway and you need to handle the formation and paperwork in an orderly way, we take care of all the administrative support so you can get started on the right foot.

Legal notice: We provide administrative and filing support services; we are not a law firm or an accounting firm, and we do not provide legal, tax, or financial advice. Each entrepreneur should evaluate their specific case with qualified professionals in the United States and Argentina before making decisions about their business structure.