Public Transparency

Formula Changelog

We maintain an open, public record of all mathematical formula revisions, statutory tax slab updates, and interest rate adjustments across our 700+ calculator registry.

October 1, 2026·Audited by CA Rajesh Sharma

FY 2026-27 Income Tax Engine Calibration

Audited Section 115BAC New Tax Regime with ₹75,000 standard deduction for salaried individuals, Section 87A rebate thresholds up to ₹7,00,000, and marginal relief calculation.

October 1, 2026·Audited by CA Rajesh Sharma

Payment of Gratuity Act 1972 15/26 Engine Release

Standardized 26 working days divisor and automated 6-month service rounding rules with statutory ₹20 Lakh tax-exemption cap under Section 10(10).

October 1, 2026·Audited by Prof. Anand Joshi

Astronomical Leap-Year Calendar Engine Alignment

Synchronized date duration and chronological age calculations with ISO 8601 Gregorian calendar specifications.

September 2026·Audited by CA Rajesh Sharma

Mutual Fund SIP Step-Up Compounding Algorithm

Implemented dynamic annual step-up compounding algorithm calibrated against AMFI benchmark illustrations.