How do I get a joint certificate for electronic tax invoices from Industrial Bank of Korea?

To obtain a joint certificate for electronic tax invoices from Industrial Bank of Korea (IBK), you can follow these steps:

1. Access IBK Corporate Internet Banking: Log in to the IBK corporate internet banking website as a corporate customer.
2. Navigate to the Certificate Center: Find and select the 'Certificate Center' or a similar option.
3. Apply for a Joint Certificate: Choose the option to issue or re-issue a 'Joint Certificate for Electronic Tax Invoices' (전자세금계산서용 공동인증서).
4. Agree to Terms and Conditions: Review and agree to the relevant terms and conditions.
5. Enter Business Information: Provide your business registration number and business account number.
6. Authentication: Enter your account password and OTP (One-Time Password) serial number. The specific OTP serial number location will depend on whether you use a token or card-type OTP.
7. Select Certificate Type: Choose the 'Electronic Tax Certificate' (전자세금용) option, which typically costs 4,400 KRW. Avoid the general-purpose certificate (110,000 KRW) unless you need it for other purposes.
8. Enter Contact Information: Input your phone number and optionally, your email address.
9. Confirm Fee Deduction: Confirm that the fee will be deducted from your designated account.
10. Save the Certificate: Select a location to save the certificate and set a password for it.
11. Copy to Smart Device (Optional): You may have the option to copy the certificate to your smart device.

Important Considerations:

• A financial-use joint certificate (금융용 공동인증서) cannot be used to issue electronic tax invoices. You need a dedicated electronic tax invoice joint certificate.
• If you have multiple business locations, you will need a separate joint certificate for each business registration number.
• If you do not have corporate internet banking set up, you will need to visit an IBK branch to apply for it first, and then proceed with the certificate issuance.
• Alternatively, if obtaining a joint certificate is difficult, you can apply for a security card at a tax office to issue electronic tax invoices via Hometax or phone ARS. Since February 2021, the mobile app 'Sontax' also allows issuance using biometric authentication without a joint certificate or security card.