RD Calculator
Your savings plan
Tax & purchasing power
Tax is an illustrative deduction from total interest at maturity, not annual taxation or TDS. It does not reduce the compounding balance.
Illustrative rates. Equivalent monthly accrual; actual bank day counts, broken periods, fees and rounding may differ.
| Month | Deposits | Interest | Balance | After tax |
|---|---|---|---|---|
| 12 | ₹60,000 | ₹2,311 | ₹62,311 | ₹62,311 |
| 24 | ₹1,20,000 | ₹9,099 | ₹1,29,099 | ₹1,29,099 |
| 36 | ₹1,80,000 | ₹20,686 | ₹2,00,686 | ₹2,00,686 |
Build a recurring deposit plan around your monthly budget
A recurring deposit builds savings through regular fixed installments. Each installment earns interest for a different length of time, so applying the full-term return to all contributions overstates maturity. This calculator tracks every monthly contribution separately through an equivalent-rate projection.
Worked example
With Rs 5,000 deposited each month for 36 months, total deposits are Rs 1,80,000. At zero interest maturity is exactly Rs 1,80,000. At a positive rate, a beginning-of-month installment earns one additional month compared with an end-of-month installment.
Formula and calculation assumptions
Monthly rate = (1 + nominal annual rate / frequency)^(frequency / 12) - 1Rates in the formula are decimals. Every month, the balance grows at this equivalent rate. Contributions are added before growth in beginning-of-month mode and after growth in end-of-month mode. No intermediate rounding is applied. Final displays are rounded to rupees; the monthly CSV retains two decimal places. Tenure is an integer number of months.
Estimated tax equals accumulated interest multiplied by your assumed tax percentage. It is deducted only from the final displayed balance, not from annual accrual. Today's purchasing power divides that net balance by (1 + inflation)^(months / 12). Neither tax input nor inflation default is a statutory rate or a forecast.
Reference sources
Investor.gov's compound interest calculator provides a reference for principal, contributions and compounding-frequency inputs. SBI's recurring deposit overview describes regular fixed monthly deposits. Always verify rates and account-specific conditions with your deposit provider.
Common questions
When is the first installment deposited?
Beginning-of-month mode deposits the first installment immediately and the last one a month before maturity. End-of-month mode deposits the first after one month and the last at maturity.
Are missed-installment penalties included?
No. The projection assumes all scheduled installments arrive on time. Bank penalties, premature closure and changing rates are excluded.
Is quarterly compounding exact for every RD?
No. Quarterly is the default mathematical convention, not a universal bank contract. Fractional quarters are accrued using an equivalent monthly rate; actual dates and bank rounding can change the final amount.