Taxation & Salary APIWeb Calculator UI
Free 8th Pay Commission Fitment Calculator API (2026)
Multiplies 7th CPC basic pay by a fitment factor, resets DA, recalculates HRA at the 7th CPC percentages, and returns a table of six factors (1.86 and 2.57 are the 6th and 7th CPC factors). Not a forecast: the 8th CPC factor has not been decided.
Interactive API Playground & Live Test
GET
/api/v1/pay-commissionQuery Parameters
Current 7th CPC monthly basic pay in ₹
Multiplier to test, 1.5 to 4 (default: 2.57, the 7th CPC factor)
Current DA % (default: 60)
DA % on the revised pay (default: 0)
HRA city class: X | Y | Z (default: X)
curl -X GET "https://fincalculator.in/api/v1/pay-commission?basicPay=56100&fitmentFactor=2.57&daPercent=60&newDaPercent=0&city=X" \
-H "Accept: application/json"Live JSON Response (HTTP 200 OK)
Click "Execute Live API Request" below...Request Parameters Schema
| Parameter | Type | Required | Description / Notes |
|---|---|---|---|
| basicPay | number | Required | Current 7th CPC monthly basic pay in ₹ |
| fitmentFactor | number | Optional | Multiplier to test, 1.5 to 4 (default: 2.57, the 7th CPC factor) |
| daPercent | number | Optional | Current DA % (default: 60) |
| newDaPercent | number | Optional | DA % on the revised pay (default: 0) |
| city | string | Optional | HRA city class: X | Y | Z (default: X) |
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Frequently Asked Questions (FAQs)
Is the Free 8th Pay Commission Fitment 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/pay-commission?
Endpoints are cached at the edge for 24 hours. There are no restrictive rate limits for standard web traffic and mobile applications.