Corporate income tax rate schedule

10 / 20 / 22 / 25%% by taxable income bracket

The bottom bracket rose from 9%, which changes the point at which incorporating beats staying a sole proprietor. Most English-language guides still show 9%.

Applies to: Corporations, for fiscal years beginning on or after 1 January 2026
Review cadence: Checked once a year

What it has been

2026-01-01
10 / 20 / 22 / 25%Current
Every bracket up one point, effective for fiscal years beginning on or after 1 January 2026.
National Tax Service
2025-01-01
9 / 19 / 21 / 24%
Bottom bracket 9%.
National Tax Service

Guides that depend on this figure

Registering a Business in Korea as a Foreigner
Sole Proprietor vs Corporation in Korea for Foreigners

When this figure moves, every guide above needs the same edit. That is why it is tracked here rather than copied into each one.