How Does the Recurring Deposit Calculator Work?
A Recurring Deposit (RD) is a fixed-income savings product offered by Indian commercial banks and Post Offices. It allows individuals to invest a fixed monthly installment over a pre-determined tenure (from 6 months to 10 years) at a guaranteed interest rate.
Unlike simple monthly accumulation, commercial banks in India compound interest on Recurring Deposits on a quarterly basis under Reserve Bank of India (RBI) guidelines.
Formula & Mathematical Methodology
The standard Indian banking formula for RD maturity using quarterly compounding is:
Where P is the monthly deposit, r is annual interest rate, n is 4 (quarterly compounding), and t is time in quarters remaining for each specific deposit installment.
Step-by-Step Practical Calculation Example
Depositing ₹5,00,00/month for 5 years (60 months) at an interest rate of 7.0% p.a.:
- Total Capital Deposited: ₹3,00,000
- Total Interest Earned: ₹59,795
- Final Maturity Value: ₹3,59,795