Tax Returns after due date 종합소득세 기한후환급신고

You might have suddenly received a message from the tax office and you aren't 100% sure if what it is, something about 종합소득세 기한후환급신고. No need to worry, it's just them telling you that yup still have unclaimed tax returns or refunds from years before. All you have to do is follow these steps.

How to claim your  종합소득세 기한후환급: 

Mobile

Step 1: