South Korea vs Singapore
Corporate Tax Comparison
Time of Update: South Korea: 4/04/2026 / Singapore: 4/04/2026
Compare South Korea and Singapore corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
South Korea vs Singapore Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
South Korea
Singapore
General CIT Rate:
Progressive: 10% (up to 200M KRW), 20% (200M-20B KRW), 22% (20B-300B KRW), 25% (over 300B KRW)
General CIT Rate:
17
CIT Return Due Date:
Mid-term tax returns: within two months from the end of the six-month period; annual tax returns: within three months from the end of the fiscal year.
CIT Return Due Date:
November 30
CIT Payment Due Date:
The submission of the declaration form (instalment payments are allowed in the case of elections).
CIT Payment Due Date:
Tax assessment notice shall be delivered within one month.
CIT Estimated Payment Due Date:
N/A
CIT Estimated Payment Due Date:
The estimated income tax assessment must be submitted within three months after the end of the company's fiscal year. The estimated tax should be paid within one month after receiving the assessment notice, or paid in installments according to the installment payment plan.
Withholding Tax (WHT)
South Korea
Singapore
Resident Withholding Tax (Dividend/Interest/Royalty):
Resident Withholding Tax (Dividend/Interest/Royalty):
NA
None-Resident Withholding Tax (Dividend/Interest/Royalty):
None-Resident Withholding Tax (Dividend/Interest/Royalty):
0/15/10
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
South Korea
Singapore
General Capital Gain Tax Rate:
25 (the same as the normal CIT rate for corporations over 300B KRW taxable income)
General Capital Gain Tax Rate:
N/A
Effective Tax Rate (ETR)
South Korea
Singapore
Composite Effective Average Tax Rate:
24.87%
Composite Effective Average Tax Rate:
16.09%
Composite Effective Marginal Tax Rate:
22.0%
Composite Effective Marginal Tax Rate:
13.15%
