Tax Invoice Management
세금계산서 발급 대행
End-to-end tax invoice handling — from counterparty communication to issuance — without requiring certificate access.
Service Overview
In Korea a tax invoice is not a document you write yourself. For a corporation it is a mandatory e-Tax Invoice (전자세금계산서): issued on a government-linked e-invoicing platform, authenticated with a joint e-certificate, transmitted to the National Tax Service by the day after issuance, and reconciled against your VAT return in the Hometax e-filing system. All of it in Korean.
Issue it late, issue it for the wrong amount, fail to transmit it, or fail to issue it at all, and penalty tax follows — for you as the seller, and often for the buyer whose input VAT credit depends on it.
Most of the work, though, is not the issuing. It is obtaining the counterparty's registration details, confirming the correct amount and item description, and following up with whoever has not replied — usually by telephone, in Korean. That is the part we take over.
This service can be engaged on its own, without full bookkeeping.
Three questions worth asking before you decide to handle this in-house.
“Do you speak Korean?”
The platform is in Korean, and so is the counterparty. Every e-Tax Invoice needs the buyer's business registration number, the correct supply value and VAT, and an item description matching what was actually supplied. Obtaining them usually means a telephone call to the other company's accounts department. This is where the time goes — not in the issuing itself.
“Where is your e-certificate, and who has it?”
Every step is authenticated with a joint e-certificate (공동인증서). It sits on one machine, expires every year, and must be located and authenticated for each single issuance. Ten invoices a month means ten authentications a month — and it falls to whoever happens to have the certificate on their laptop that day.
“Is it before the 10th?”
Issuance must fall within the statutory deadline — the 10th day of the month following supply — with transmission to the National Tax Service within a day of issuing. The deadline arrives every month, whether or not anyone was watching for it.
If any of those gave you pause, that is what this service is for. We answer all three on your behalf.
How we run it
- 1
You tell us the basics of each transaction.
Email or messenger, as the transactions happen. There is no form to fill in and no system for your staff to learn.
- 2
We verify it ourselves.
We reconcile what you tell us against the movements on your bank accounts, and where something is unclear we contact the counterparty directly by telephone to settle it. Following up with the other side is our work, not yours.
- 3
Once a month we send you the complete list for approval.
The full schedule — counterparty, amount, date and item for each invoice we propose to issue. You review it and approve by return email.
- 4
We issue exactly what you approved, on time.
Nothing is issued without your approval, and the cycle is timed so that issuance always falls within the statutory deadline.
What you do — two touches a month
- Tell us about a transaction, by email or messenger, as it happens
- Approve one monthly schedule
What we do — everything else
- Reconcile the details against your bank records
- Telephone the counterparty in Korean when anything is unclear
- Register and maintain counterparty records
- Operate the Korean issuance platform
- Track the statutory deadline every month
- Issue, and correct where a return, discount or error requires it
You confirm transactions you already know about, once a month, in English, by email. That is the whole of your involvement.
The certificate — registered once, then left alone. A Korean joint e-certificate is valid for one year. You register it on the e-invoicing platform once and share the platform login with us, and for that entire year nobody has to handle the certificate again. What you share is access to the issuance platform, not your banking credentials.
The boundary. We issue what you approve. The commercial facts of a transaction — that it happened, on what terms, for how much — remain yours to confirm.
Questions about Tax Invoice Management?
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Request a ProposalWe reply within 2 business days.
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