About
About this site
This site lets anyone check whether a Korean business is registered, still trading, and able to issue a valid tax invoice — and explains what the answer means in English.
It exists because the underlying information is public but effectively unreachable if you do not read Korean. Korea’s National Tax Service publishes business registration data as open data, but the interfaces, field names and status codes are all Korean-only. Someone in Hamburg or Ohio evaluating a Korean supplier has no practical way to use it.
How current the data is
Records are synchronised with the tax service roughly every thirty minutes, so a check reflects the register as it stood minutes ago rather than a nightly snapshot. A newly registered business is the one exception: it typically takes one to two days to appear.
This site is independent. It is not affiliated with, endorsed by, or operated on behalf of the National Tax Service or any Korean government body. It simply presents their published data in a language more people can read.
What these checks cannot tell you
Registration status is an administrative fact, not an assessment. It does not indicate whether a business is solvent, competent, or a suitable trading partner, and it is not a credit reference. A registered business can still fail to deliver.
Nor can any check here confirm that the person contacting you is connected to the business whose number they have given you. That gap is where most losses actually occur — the supplier verification guide covers it in detail.
Contact
Corrections, questions and mistakes are welcome — particularly if a result looks wrong. Get in touch.