{"country":"co","currency":"COP","name":"Colombia","taxYear":2025,"taxYearPeriod":"January - December 2025","description":"Colombian self-employed tax calculator: UVT-based progressive income tax with social contributions on IBC","parameters":{"income":{"type":"number","required":true,"description":"Annual gross income in COP"},"incomePeriod":{"type":"string","default":"yearly","options":["monthly","yearly"]},"expenses":{"type":"number","default":0,"description":"Annual deductible expenses"},"vatRegistered":{"type":"boolean","default":false,"description":"IVA registered (19%)"},"weeklyHours":{"type":"number","default":40,"description":"Weekly working hours"},"paidDaysOff":{"type":"number","default":15,"description":"Annual leave days"}},"example":"/v1/calculate/co?income=100000000"}