How Do I Submit My Residency Certificate to Korea?

To obtain tax exemption while in South Korea, teachers will need to submit their Residency Certificate to their school’s administrative office at the beginning of the contract (before the first salary is paid). The worker in charge of taxation will then submit it to the appropriate governing tax office.

Individuals that plan to stay in Korea for more than one year (with the possibility of transferring to another school after the first year), it is recommended that you apply for two residency certificate copies. Once you receive the residency certificate, it also advised to make a copy of the original(s) and keep it with you in the event the school may misplace the certificate after submission.

https://www.korvia.com/residency-certificate/