Korean Business Registration Number Check (Active, Suspended, or Closed)
Enter a 10-digit Korean business registration number to check its National Tax Service status and VAT type free and in real time
Before you exchange tax invoices with a vendor, confirm right away against Korea's National Tax Service data whether their business registration number is valid and whether the business is suspended or closed. Enter the 10 digits and you'll get the active-business status along with the VAT taxation type in a single lookup. Free to use, no sign-up required.
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How to use
- Enter the 10-digit business registration number you want to check (hyphens are ignored automatically).
- Click 'Search' to pull the registration status from the National Tax Service in real time.
- Review the status (active, suspended, or closed), the taxation type, and the closure date if there is one.
FAQ
- A business that just opened isn't showing up.
- It can take a day or two after opening for a new business to appear in the National Tax Service records. If the lookup comes up empty, try again in a few days.
- What does the taxation type mean?
- It refers to how the business is treated for VAT purposes, split into categories such as general taxpayer, simplified taxpayer, and tax-exempt business. It's a useful indicator of whether the business can issue tax invoices.
- Is it okay to look up someone else's business registration number?
- Yes. The National Tax Service's business status lookup API is a public service specifically meant for checking a business partner's registration authenticity and open/closed status, so looking it up for verification purposes is perfectly fine. That said, it doesn't provide personal details like the owner's name.