Guernsey vs South Korea: tax rates compared

Income Tax

Income Tax, side by side

Country	Rate	Source
Guernsey	20%	Source: PwC Worldwide Tax Summaries — Guernsey, Channel Islands, Individual - Taxes on personal income · as of 2025-12-17
South Korea	49.5%	Source: OECD Tax Database — Top statutory personal income tax rates · as of 2025-01-01
Difference	−29.5 pp	South Korea higher

Corporate Tax

Corporate Tax, side by side

Country	Rate	Source
Guernsey	0%	Source: Tax Foundation — Worldwide Corporate Tax Rates · as of 2025-01-01
South Korea	26.4%	Source: Tax Foundation — Worldwide Corporate Tax Rates · as of 2025-01-01
Difference	−26.4 pp	South Korea higher

Between the two, South Korea's corporate tax rate (26.4%) tops Guernsey's (0%) by 26.4pp. The 201-country average is 22.6%: Guernsey sits below it, South Korea sits above it.

VAT

VAT, side by side

Country	Rate	Source
Guernsey	0%	Source: PWC Worldwide Tax Summaries — Guernsey (Individual, Other taxes) · as of 2025-12-17
South Korea	10%	Source: PWC Worldwide Tax Summaries — Korea, Republic of (Corporate, Other taxes) · as of 2026-06-04
Difference	−10 pp	South Korea higher

Between the two, South Korea's VAT rate (10%) tops Guernsey's (0%) by 10pp. The 181-country average is 15%: both sit below it. Guernsey's figure is dated 2025-12-17 and South Korea's 2026-06-04, so the two rates come from different data vintages.

Capital Gains Tax

Capital Gains Tax, side by side

Country	Rate	Source
Guernsey	0%	Source: PwC Worldwide Tax Summaries — Guernsey, Channel Islands, Individual - Income determination · as of 2025-12-17
South Korea	0%	Source: PWC Worldwide Tax Summaries — Korea, Republic of (Individual, Income determination) · as of 2026-07-02
Difference	0 pp	displayed rates match

There's no gap here — Guernsey and South Korea both post a capital gains tax rate of 0%. The 175-country average is 10.3%: both sit below it. Guernsey's figure is dated 2025-12-17 and South Korea's 2026-07-02, so the two rates come from different data vintages.

Wealth Tax

Wealth Tax, side by side

Country	Rate	Source
Guernsey	0%	Source: PWC Worldwide Tax Summaries — Guernsey (Individual, Other taxes) · as of 2025-12-17
South Korea	0%	Source: PWC Worldwide Tax Summaries — Korea, Republic of (Individual, Other taxes) · as of 2026-07-02
Difference	0 pp	displayed rates match

There's no gap here — Guernsey and South Korea both post a wealth tax rate of 0%. The 193-country average is 0.1%: both sit below it. Guernsey's figure is dated 2025-12-17 and South Korea's 2026-07-02, so the two rates come from different data vintages.