Why the structure that is cheaper to set up is rarely the structure that is cheaper to run.

Most companies entering Korea start by asking how quickly they can open the doors. That question matters, but it only covers part of the picture. Just as important is what the structure will cost you three years in, and again on the day you eventually close it.

A branch is an extension of the parent company, not a separate Korean entity. It requires no minimum capital and is quick to set up. A subsidiary is a standalone Korean company with its own capital, board, and legal identity. It takes longer to establish and asks for paid in capital up front. If you are still getting familiar with the basic mechanics of how a branch and a subsidiary differ, that overview is a good place to start before reading on. Speed favors the branch. Everything that happens afterward is more complicated.

The classification that changes everything

A Korean branch is treated as a foreign company for tax purposes, no matter how small its actual operations are. This means it does not qualify as an SME under Korean tax law, which closes the door to the special tax reduction available to qualifying SMEs, typically 5 to 30 percent off the corporate tax otherwise due, along with the income tax reduction SMEs can offer to attract younger employees, up to 90 percent for qualifying hires under 35 for their first five years. A subsidiary is treated the same as any Korean owned company and can access these benefits if it otherwise qualifies.

Korean corporate income tax itself applies equally to both structures, on a progressive scale that currently runs from 10 percent to 25 percent depending on taxable income, with local income tax charged separately on top at a rate of 10 percent of the national tax due. The gap between a branch and a subsidiary is not this base rate. It is which incentives each structure is eligible to claim against it.

Profit movement also differs. A subsidiary pays dividends to its parent, generally subject to withholding tax, often reduced under a tax treaty. A branch remits profits to head office instead, and depending on the treaty involved, that remittance may or may not trigger a separate branch profits tax. This should be checked against the specific treaty, never assumed.

Two quick examples

A support office with no independent revenue, no plans to raise local capital, and a short expected lifespan is usually better off as a branch. The SME incentives were unlikely to apply at that scale regardless, and closing a branch is simpler than liquidating a subsidiary.

A company building a long term Korean presence, planning to hire and grow, and possibly bring in a local investor down the road, is usually better off as a subsidiary. The incentives, the credibility of a standalone entity, and the ability to raise local capital tend to outweigh the slower setup.

Before you decide

Ask what the Korea operation is actually meant to do over the next three to five years, not just at launch. Ask whether SME incentives are likely to matter at your expected scale. Ask what your home country’s tax treaty with Korea says about branch profit remittance. The answer follows the business plan, not the paperwork timeline.

If you are working through this decision for your own Korea entry, I am happy to talk it through.

Written by Ara Jung (CTA)

All information provided is of limited scope and not exhaustive or comprehensive of any subject. It is not intended to be legal advice, and should not be used in place of consultation with appropriate professionals