EntitySep 30, 20261 min read
C-Corp vs LLC — what changes when a Korean HQ forms a U.S. subsidiary?
The entity type shapes how taxes are filed, how you transact with HQ, and how you raise capital later. Here is what to weigh before deciding.
This article is general information, not legal or tax advice. It requires review by U.S. accounting and legal professionals before publication.
The first question most companies ask is "C-Corp or LLC?" It looks like a paperwork choice, but it really decides where and how tax is calculated.
Tax is calculated in different places
A C-Corporation files and pays U.S. federal corporate income tax on its own. The line between HQ and subsidiary is clear, which makes the structure easier for a Korean headquarters to understand and manage.
An LLC generally passes income through to its owners. An LLC wholly owned by a single Korean company is, absent an election, not treated as a separate taxpayer, and foreign-owned single-member LLCs carry their own information-reporting duties.
What to weigh
- Where profits from U.S. operations are better taxed
- How much the U.S. entity transacts with HQ (product supply, royalties, service fees)
- Whether you plan to raise U.S. capital or change ownership later
- How the Korea–U.S. tax treaty and Korean outbound-investment reporting apply
In short
The answer comes from your business model and capital flow, not your industry or size. Entity type is best settled alongside Business Model, Tax Structure and Capital Flow in the Entry Blueprint.