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Methodology

Formulas and sources

Every calculator implements the official Indian formula for its instrument:

  • Loans: RBI reducing-balance, EMI = P × R × (1+R)ⁿ / ((1+R)ⁿ − 1) per RBI Master Circular on Loans and Advances.
  • Tax: Income Tax Act, 1961 — section-by-section citation on each calculator (24(b), 80C, 80D, 80E, 10(13A), 24, 80EEA, etc.).
  • Mutual funds / SIP: compound growth with monthly compounding, per SEBI illustration norms.
  • Pension (EPF/EPS/NPS/Gratuity): EPFO Act / Payment of Gratuity Act 1972 / PFRDA NPS architecture.
  • FD/RD: compound interest at quarterly compounding (or as specified by bank disclosure).

Review and sign-off

Every page is reviewed by Jayesh Jain (AMFI ARN-286359) before publish, and re-reviewed at least annually (May, post-Union Budget) or whenever the underlying regulation changes. Each page footer lists the last-reviewed date.

Data updates

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