How this calculation works
Estimate the maturity of one fixed deposit when interest is retained in the deposit and compounded. The result separates the original deposit from interest earned. A deposit that pays interest out monthly or quarterly will not follow this reinvested-interest calculation.
Worked example
This example uses illustrative inputs. Your current result is shown above.
Enter ₹1,00,000, 8% annual interest, 1 year and quarterly compounding. The quarterly rate is 2%, so maturity = ₹1,00,000 × 1.02⁴ = ₹1,08,243.22. Interest earned is ₹8,243.22 before deductions.
Assumptions and limits
- This is a cumulative deposit with no interim interest payout or additional deposit.
- The entered rate is fixed for the whole term and divided by the compounding frequency.
- TDS, final income tax, premature-closure penalties and bank-specific broken-period calculations are excluded.
Questions people ask
Why can the bank’s maturity quote differ?
A bank may calculate incomplete quarters using actual days, round credited interest differently, or apply different payout terms. Match the booked rate, maturity date and compounding convention to the deposit receipt.
Is the displayed interest my after-tax return?
No. This is gross interest. Neither tax withheld during the term nor your final tax liability is removed.
Can I model an interest-paying FD?
Not with this maturity formula: it assumes reinvestment. A payout deposit needs a separate schedule of the interest paid to you and the principal returned.