How to Reissue Your Business Registration Certificate — Online and In-Person
Lost or damaged your business registration certificate? We cover how to reissue it via Hometax, Sontax, and the tax office. Learn the difference from a registration verification document, agent issuance, and fees — all in one place.
If you've lost your business registration certificate, there's no need to panic. You can apply for reissuance right away without any separate loss report, and on Hometax you can even print it instantly as a PDF. There's no fee, either.
It's the same if you need a new one because your business name or address changed after moving. There are many moments when you need your business registration certificate—opening a bank account, signing a lease, submitting it to a client—and it can be handled more simply than you'd think.
For reference, March 31 is the corporate tax filing and payment deadline for corporations with a December fiscal year-end. Since you may need your business registration certificate during the corporate tax filing process, if you've lost it or your registered details have changed, get it reissued in advance before the deadline.
We've organized the options to suit your situation—Hometax, Sontax, and visiting the tax office.
ℹ️ Q. In what cases do I need to reissue my business registration certificate?
Here are the typical reasons you'd need to reissue a business registration certificate.
- Loss — If you've lost the original. You can apply for reissuance right away without any separate loss report procedure.
- Damage — If it's gotten wet or torn and is hard to read. Just bring the existing original.
- Change of details — If the representative's name, business name, business address, business type, etc. have changed. You first have to file a business registration correction, and after the correction is complete, a new certificate is issued.
- Additional copies needed — If you need extra copies to submit to clients or institutions.
If your business address is changing, using a virtual office lets you maintain a stable business registration address without an actual office. It's also a way to reduce the hassle of having to reissue your business registration certificate every time you move.
ℹ️ Q. How do I reissue it online via Hometax?
The process for reissuing a business registration certificate on Hometax (hometax.go.kr) involves the 4 steps below.
Step 1: Log in to Hometax Log in with one of the following: a joint certificate (formerly the accredited certificate), a financial certificate, or simple authentication (Kakao, Naver, etc.).
Step 2: Navigate the menu From the top menu, select [National Tax Certificates & Business Registration / Tax-Related Applications] → [Instant-Issue Certificates] → [Reissue Business Registration Certificate].
Step 3: Fill out the application Verify your business registration number → select the reason for reissuance → click the apply button.
Step 4: Download and print the PDF After completing the application, you can download and print it instantly as a PDF. Processing usually takes anywhere from instantly to within 2 days, and there's no fee.
✅ Handling it online means you can take care of it right from home or the office, without visiting the tax office.
ℹ️ Q. Can I reissue it on mobile (Sontax) too?
Yes, you can apply for a business registration certificate reissuance in the Sontax app as well.
After installing the Sontax app and logging in, select [National Tax Certificates & Business Registration / Tax-Related Applications] → [Instant-Issue Certificates] → [Reissue Business Registration Certificate].
You can also save it as a PDF or send it by fax. It's a handy option when you're out or don't have a PC. That said, the small screen can make input awkward, so if you have time, we recommend Hometax on a PC.
ℹ️ Q. What if I want to reissue it by visiting the tax office in person?
Reissuing it by visiting the tax office is simple too. Including waiting time, it's usually issued on the spot within 10–30 minutes, and you can get it at any tax office nationwide—not just your jurisdictional one.
What to bring for a tax office visit:
- Business registration certificate reissuance application — available at the tax office
- Representative's ID — resident registration card or driver's license
- Existing business registration certificate — bring the original in cases of damage
If a proxy is visiting, you'll additionally need a power of attorney (signed or sealed by the representative), a copy of the representative's ID, and the original of the proxy's ID.
ℹ️ Q. Can I get it from Gov24 too?
Here's a part that confuses a lot of people. A business registration certificate and a business registration confirmation (certificate of confirmation) are different documents.
⚠️ To sum up: ⚠️ • Reissuing a business registration certificate → only available via Hometax, Sontax, or the tax office ⚠️ • A business registration confirmation → can also be issued via Gov24 (non-members too) ⚠️ When submitting to a financial institution or government office, they usually ask for the "confirmation." Check first with the place you're submitting to about which document is needed.
ℹ️ Q. Does reissuing a business registration certificate cost anything?
It's free. Whether online (Hometax, Sontax) or by visiting the tax office, there's no reissuance fee. Issuing a business registration confirmation is likewise free.
ℹ️ Q. If my address changes often, do I have to reissue it every time?
When your business address changes, you have to file a business registration correction and then receive a new business registration certificate. For freelancers or one-person businesses who move frequently, that's quite a hassle.
In such cases, using a virtual office as your business registration address lets you keep your business address the same even if your actual residence changes. It's a way to reduce follow-up tasks that come with address changes—reissuing the business registration certificate, reporting to the tax office, notifying clients, and so on.
✅ CoworkCity operates virtual offices in major areas of Seoul (Gangnam, Jongno, Yeongdeungpo, Mapo, etc.). It provides not only a business registration address but also mail management and phone-answering services, so many one-person businesses use it.
Learn more about CoworkCity virtual offices
✅ To sum up so far
- You can reissue a business registration certificate via Hometax, Sontax, or the tax office, free of charge.
- Hometax path: [National Tax Certificates & Business Registration] → [Instant-Issue Certificates] → [Reissue Business Registration Certificate]
- A business registration certificate (the original) and a business registration confirmation (a confirmation document) are different documents. Gov24 can only issue the confirmation.
- For a proxy visit, you need a power of attorney + a copy of the representative's ID + the original of the proxy's ID.
- If your address changes often, using a virtual office can reduce the burden of reissuance.
Wrapping up
Reissuing a business registration certificate is a simpler process than you'd think. Whether it's a loss or an address change, you can handle it on Hometax in about 5 minutes.
That said, if you're in a situation where your address keeps changing, securing a stable business registration address from the start is one option. With a virtual office, you can run your business without changing your address and reduce administrative burdens like reissuance.
CoworkCity offers one-stop support—from providing a business registration address to mail management and phone answering—so if your business registration address is a concern, take a look.
Explore CoworkCity virtual offices
Worth reading together
- The final checklist you absolutely must review after relocating your business premises
- How to change a sole proprietor's name, and why it's done via closing the business and re-registering
- Essential for new business owners | How to register a business credit card on Hometax
- A checklist you must review if you're worried about your virtual office registration being rejected
