VAT, comprehensive income tax, withholding, social insurance, year-end settlement. Pick your business type.
If the 25th falls on a weekend or holiday, the deadline moves to the next business day. Refund dates follow NTS processing (15 days early refund, 30 days regular) and may differ by a few days.
Within 30 days after the final filing deadline (mid-Feb / mid-Aug); early refunds (exports, capital investment) within 15 days.
May filings are refunded late June to early July.
Withholding tax by the 10th monthly (or Jan/Jul 10 for semi-annual filers); social insurance by the 10th.
20% penalty (40% if fraudulent) plus 0.022%/day interest; 50% penalty relief if filed within a month.
Once a year by Jan 25, plus a preliminary payment on Jul 25 (half of last year's tax, waived under ₩500,000).
Check Hometax → refund inquiry; register a refund account.