Taxation & Salary APIWeb Calculator UI
Free Old vs New Tax Regime Break-Even Calculator API (2026)
Fast API solving the break-even deduction threshold for any CTC package in India under FY 2026-27 rules.
Interactive API Playground & Live Test
GET
/api/v1/tax-regime-breakevenQuery Parameters
Gross annual salary in ₹
80C deductions in ₹
80D medical insurance in ₹
curl -X GET "https://fincalculator.in/api/v1/tax-regime-breakeven?grossSalary=1500000§ion80C=150000§ion80D=25000" \
-H "Accept: application/json"Live JSON Response (HTTP 200 OK)
Click "Execute Live API Request" below...Request Parameters Schema
| Parameter | Type | Required | Description / Notes |
|---|---|---|---|
| grossSalary | number | Required | Gross annual salary in ₹ |
| section80C | number | Optional | 80C deductions in ₹ |
| section80D | number | Optional | 80D medical insurance in ₹ |
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Frequently Asked Questions (FAQs)
Is the Free Old vs New Tax Regime Break-Even Calculator API free to use in production apps?
Yes! All FinCalculator REST APIs are completely free, zero-auth, open-CORS, and edge-cached for high performance across global web and mobile applications.
What is the rate limit for /api/v1/tax-regime-breakeven?
Endpoints are cached at the edge for 24 hours. There are no restrictive rate limits for standard web traffic and mobile applications.