{"country":"in","currency":"INR","name":"India","taxYear":2025,"taxYearPeriod":"April 2025 - March 2026","description":"India B2B freelancer tax calculator: presumptive taxation (44ADA, 50% deemed income), new regime (progressive with standard deduction + rebate), or old regime (legacy brackets). Health & education cess 4% applies.","parameters":{"income":{"type":"number","required":true,"description":"Annual gross revenue INR"},"incomePeriod":{"type":"string","default":"yearly","options":["monthly","yearly"]},"taxModel":{"type":"string","default":"presumptive","options":["presumptive","new_regime","old_regime"],"description":"presumptive: 44ADA (50% deemed), new_regime: progressive with deduction, old_regime: legacy brackets"},"vatRegistered":{"type":"boolean","default":false,"description":"GST registered (18%)"},"weeklyHours":{"type":"number","default":40,"description":"Weekly working hours"},"paidDaysOff":{"type":"number","default":15,"description":"Annual leave days"}},"example":"/v1/calculate/in?income=3000000&taxModel=presumptive"}