{"country":"kr","currency":"KRW","name":"South Korea","taxYear":2025,"taxYearPeriod":"January - December 2025","description":"South Korean Tax: Progressive income tax (6-45%) + 10% local surtax, NPS, NHI, Long-term Care","parameters":{"income":{"type":"number","required":true,"description":"Gross income KRW"},"incomePeriod":{"type":"string","default":"yearly","options":["monthly","yearly"]},"includeNps":{"type":"boolean","default":true,"description":"Include National Pension (9% of income, capped)"},"includeEi":{"type":"boolean","default":false,"description":"Include Employment Insurance (2.25%, optional for self-employed)"},"vatRegistered":{"type":"boolean","default":false,"description":"VAT registered (10%)"},"weeklyHours":{"type":"number","default":40,"description":"Weekly working hours"},"paidDaysOff":{"type":"number","default":15,"description":"Annual leave days"}},"example":"/v1/calculate/kr?income=60000000"}