Frequently Asked Questions 1. Global Income Tax Filing by a Foreigner Planning to Depart Korea Q: I am a foreigner, and I have been running my own business in Korea for a few years. I am planning to return to my home country in April this year. Should I file my global income tax return for 2022 in May this year? Also, how should I file a tax return on income earned in 2023? A: If you are a forei..