{"country":"tr","currency":"TRY","name":"Turkey","taxYear":2025,"taxYearPeriod":"January - December 2025","description":"Turkish self-employed (serbest meslek) tax calculator with BAG-KUR social security","parameters":{"income":{"type":"number","required":true,"description":"Gross income in TRY"},"incomePeriod":{"type":"string","default":"yearly","options":["monthly","yearly"]},"expenses":{"type":"number","default":0,"description":"Annual deductible business expenses"},"bagkurBase":{"type":"string","default":"minimum","options":["minimum","actual","maximum"],"description":"BAG-KUR contribution base selection"},"vatRegistered":{"type":"boolean","default":false,"description":"KDV registered (20%)"},"weeklyHours":{"type":"number","default":40,"description":"Weekly working hours"},"paidDaysOff":{"type":"number","default":14,"description":"Annual leave days"}},"example":"/v1/calculate/tr?income=500000"}