Not all LLCs are the same. Although they share a common legal basis, there are important variants depending on the number of partners, the chosen tax treatment, and the type of activity. Knowing these differences is key to choosing the right structure from the start.
What is an LLC and how is it classified?
The Limited Liability Company is a corporate form regulated at state level in the United States that combines the asset protection of capital companies with the operational simplicity of sole traders or partnerships. Its great flexibility means it can adapt to virtually any business model, from an individual freelancer to a structure with multiple international partners.
LLCs are classified primarily according to two independent criteria: the number of members (partners) and the tax treatment chosen with the IRS. To these two axes are added some specific modalities designed for specific contexts, such as regulated professional activity or the management of multiple lines of business.
It is important to understand that the tax classification and the classification by number of partners are separate decisions: a Multi-Member LLC can be taxed as a transparent entity or as a corporation, just like a Single-Member LLC. The optimal design depends on the particular situation of each case.
Types of LLC by number of partners
Single-Member LLC
A Single-Member LLC (SMLLC) is one that has a single partner or member. It is the most common modality among freelancers, consultants, digital creators, and individual entrepreneurs who want to separate their personal assets from business assets without adding operational complexity.
Tax-wise, the IRS treats it by default as a disregarded entity: income and expenses are declared directly on the owner’s personal return, as if it were a sole trader. This simplicity is its main attraction. For non-US resident partners, however, it’s worth analyzing whether this configuration generates additional withholding or reporting obligations with the IRS, such as Form 5472.
The SMLLC also allows easy scaling: if in the future a partner is to be added, conversion to a Multi-Member LLC is a relatively simple administrative process.
Multi-Member LLC
When the LLC has two or more partners, it becomes a Multi-Member LLC. The IRS treats it by default as a partnership, and profits are distributed among the members according to what is established in the Operating Agreement.
In this type of LLC, the drafting of the Operating Agreement takes on critical importance. It is the document that regulates the economic and political rights of each partner, the decision-making mechanisms, the conditions for entry and exit of partners, and the procedures for conflicts. An LLC with multiple partners and no well-drafted Operating Agreement is a potential source of conflicts that can turn out to be very costly.
It is common in joint ventures, shared projects, family structures, or when two or more entrepreneurs associate to develop a business. The Multi-Member LLC allows the participation of each partner to be structured in a flexible way adapted to their actual contribution to the project.
Types of LLC by tax treatment
LLC as a transparent entity
The default treatment of an LLC is transparent or pass-through taxation: the entity does not pay its own taxes at the federal level and profits or losses are attributed directly to the partners so they can declare them on their individual returns. This avoids the double taxation that exists in corporations (C-Corp), where the company pays taxes on its profits and then the partners pay taxes again on the dividends received.
For non-US resident partners who don’t generate income from US sources, transparent taxation can be very efficient. However, if the partner resides in a country with CFC (Controlled Foreign Corporation) rules, it’s worth analyzing the impact before opting for this treatment, as profits might be attributed to the personal tax base even if they haven’t been distributed.
LLC taxed as a corporation
An LLC can voluntarily opt to be taxed as a C-Corporation or S-Corporation by submitting the corresponding form to the IRS (Form 8832 or Form 2553). This can be advantageous in several scenarios: when you want to reinvest profits in the company without paying taxes at personal level, when you need to attract institutional investors who prefer the corporate structure, or when the partner wants to reduce the self-employment tax burden.
The choice to be taxed as an S-Corp is reserved for US citizens and permanent residents, so for most non-residents the relevant corporate option would be the C-Corp. However, the C-Corp involves double taxation, so its suitability should be analyzed on a case-by-case basis with an American CPA.
Other types
There are less frequent but very relevant variants in specific contexts. The most important are:
- Series LLC: available in Delaware, Wyoming, Texas, and other states. Allows creating independent sub-units (series) within a single LLC, each with its own separate assets and liabilities. Very useful for real estate investors with multiple properties.
- Professional LLC (PLLC): designed for regulated professionals such as doctors, lawyers, architects, or engineers, who in some states cannot incorporate a standard LLC.
- Anonymous LLC: available in Wyoming and New Mexico. Does not reveal the identity of the partners in public records, providing an additional level of privacy.
- Foreign LLC: the designation for an LLC registered in one state that operates in a different state. Requires a foreign qualification process in the state where the activity is carried out.
How to choose the right type?
Choosing the type of LLC depends on factors such as the number of partners, the tax residency of each, the type of activity, the growth objectives, the need for privacy, and the long-term tax strategy. There is no universally better option.
For an individual freelancer or consultant who wants to operate in an agile and efficient way, the Single-Member LLC with disregarded entity treatment is usually the simplest option. For a structure with several partners and a need to reinvest profits, exploring corporate taxation may be more efficient. And for those managing multiple assets or projects, the Series LLC can offer organization and protection advantages that other structures don’t allow.
It is most advisable to seek specialized advice before incorporating, especially when there are partners in different countries or when the LLC will interact with corporate structures in other jurisdictions. A well-grounded decision from the start avoids costly restructurings later.