Key legal points Koreans should check before setting up a company or business in the U.S.

Inquiries from Korean companies and individuals looking to set up a company in the United States, or to start a business with the U.S. market in mind, have been growing steadily. The forms vary, from startups expanding into the U.S. and Korean headquarters setting up U.S. subsidiaries to individuals starting a business in the U.S., but what we hear early in a consultation is similar: "I heard that with an LLC there is no personal liability," "I was told an LLC is better if you only look at taxes," and "It's a U.S. company, so isn't it separate from Korea?"

Judging from experience setting up companies in Korea or from information found online, it is easy to see why people think this way. In practice, however, we repeatedly see cases where setting up a U.S. company does not work that simply. In this article, we outline the legal points Koreans should consider at least once, with a focus on the overall structure.

1. LLC or corporation: not just a tax question

The most common question is whether an LLC or a corporation is better. Many sources explain this mainly in terms of taxes, and taxes are certainly an important factor. In practice, however, this choice is tied to the following issues.

The scope of the principal's personal liability
The guarantee structures required in contracts with outside parties
Raising investment, transferring equity, and exit structures
The legal connection to the Korean headquarters and the principal

In other words, beyond which form is better for saving taxes, it is also a question of who will bear the liabilities of the business and to what extent.

2. A common misconception about LLCs

A common misconception is that an LLC means no personal liability. In theory, an LLC separates the liabilities of the individual from those of the entity, so it is easy to assume one can start without worry. In reality, however, things often work differently. When leasing retail or office space for the business, even if the lease is signed in the LLC's name, it is very common for the landlord to require a personal guarantee from the principal, and in some cases from the principal's spouse or family, as a condition. A structure in which liability does not stay with the LLC alone is already created at the contract stage.

Of course, if the structure and operation of the LLC are properly designed in advance, an LLC can be a meaningful tool for largely preventing unexpected losses that may arise in the business from reaching personal assets. That protection, however, does not arise automatically just from the LLC form.

3. Risks of starting a business in your own name

Some people choose to start in their own name first because setting up an entity feels burdensome. This can be an option depending on the circumstances, but when the business is run in your own name, contractual liabilities fall directly on you, your defensive position in a dispute is weaker, and unexpected legal and tax problems can arise later when converting to an entity. It is not always the wrong choice, but the decision should be made with a clear understanding of the liability structure that comes with it.

4. Why Korean law matters for a U.S. company

Formally, a U.S. entity is a U.S. entity. At the operating stage, however, the distinction is not as clean as one might think. If the Korean headquarters remits funds, the Korean principal is effectively involved in management, or key contracts are signed in Korea, then even for a U.S. company it is not unusual for funding regulations such as overseas direct investment reporting under the Foreign Exchange Transactions Act, tax issues, and sanctions for failing to meet reporting obligations to come into play. Setting up a U.S. company is not a choice entirely separate from Korean law; depending on the case, Korean legal issues come along with it.

5. Summary: structure over form

What matters when setting up a company in the United States is not the form itself, LLC or corporation. Realistic risk management means reviewing, at the same time, how that structure will work in actual contracts and operations, to whom and how far liability extends, and how to manage the legal ties to Korea. It is worth keeping in mind that setting up a U.S. company does not end with creating an entity; it is a starting point that leads to the contracts, operations and potential disputes that follow.

Related U.S. practices: Corporate & Business Advisory