{"country":"be","currency":"EUR","name":"Belgium","taxYear":2025,"taxYearPeriod":"January - December 2025","description":"Belgian self-employed tax calculator: 4-bracket progressive income tax with tiered social contributions and tax-free allowance","parameters":{"income":{"type":"number","required":true,"description":"Annual gross income in EUR"},"incomePeriod":{"type":"string","default":"yearly","options":["monthly","yearly"]},"expenses":{"type":"number","default":0,"description":"Annual deductible expenses"},"vatRegistered":{"type":"boolean","default":false,"description":"BTW registered (21%)"},"weeklyHours":{"type":"number","default":40,"description":"Weekly working hours"},"paidDaysOff":{"type":"number","default":20,"description":"Annual leave days"}},"example":"/v1/calculate/be?income=80000"}