POPBill Developers
Guide
e-Tax Invoice
Guide e-Tax Invoice NTS Filing Option

National Tax Service (NTS) Filing Option

As POPBiLL automatically sends the issued e-Tax invoice to the NTS system, the partner can select one of the following two filing options to implement a preferred process.

Next-Day Filing (Default)

This option enables the system to file the e-Tax invoice to the NTS system at 3PM(KST) on the next business day from the issuance date. It enables the cancellation of an issuance before the system files to the NTS. The cancelled invoices will be exempted from the NTS filing subjects.

Next Day Filing Process

If NTS instant filing is needed, it can be processed via [SendToNTS - File “issued” e-Tax invoice to the NTS] API.

Instant Filing

This option enables the system to concurrently issue and file the invoice. Be cautious that when using this option, you are not allowed to cancel an issuance.

Instant Filing Process
Glossary
  • Issued : a seller issued(digitally signed) an e-Tax invoice.
  • Processing : waiting status for a result from NTS system after the filing process is completed.
  • Succeeded : NTS filing is successfully completed, and the result is returned. It is disallowed to cancel the ‘filing succeeded’ e-Tax invoice and required to write a “revised invoice” for an amendment.