Deposit Maturity Calculator
Estimate the maturity value of a one-time deposit — simple or compound interest, payout or reinvestment, fees and tax handled correctly.
- Free
- No signup
- Private browser calculation
Estimated maturity value
₹1,23,144
₹1,00,000 deposited · ₹23,144 net interest.
- Gross interest
- ₹23,144
- Net interest
- ₹23,144
- Effective annual rate
- 7.19%
- Annualised net return
- 7.19%
Gross interest of ₹23,144, leaves ₹23,144 net.
The annualised net return is approximately 7.19% per year.
These estimates are for general planning only and are not financial, tax, investment or banking advice. Actual interest, fees, taxes, inflation and product terms may differ. This calculator does not display live rates or represent an offer from a bank or financial institution.
Assumptions and conventions
- Compound at maturity: FV = P·(1 + r/m)^(m·t). Simple interest: P·r·t. Periodic payouts pay P·r ÷ payouts per year on the principal only and are not reinvested.
- The rate is your assumption and stays constant; no live bank rates are used.
- Fees are one-time and deducted from proceeds; tax applies to interest.
- Values are calculated at full precision and rounded for display; columns may differ from totals by a small rounding amount.
What this calculator does
It projects what a single deposit is worth at maturity under your assumed rate — known as a fixed deposit in India, a certificate of deposit in the US, a term deposit in Australia, or a GIC in Canada. The rate is your assumption; no live bank rates are shown.
The payout setting matters: interest reinvested until maturity compounds, while interest paid out monthly or quarterly is income on the principal only and never compounds. The calculator keeps the two strictly separate and never double-counts a payout.
Formula
Compound at maturity: FV = P·(1 + r/m)^(m·t). Simple interest: interest = P·r·t. Periodic payout: each payout = P·r ÷ payouts per year, paid on the principal only.
Net interest = gross interest − tax − fees; annualised net return = (total received ÷ P)^(1/t) − 1.
Assumptions
- The rate is your assumption and stays constant; this is not a live or offered bank rate.
- Fees are one-time and deducted from proceeds; tax applies to interest.
- Paid-out interest is not reinvested.
Content and formulas reviewed on 2026-08-06. See our methodology for how calculations are built and tested.
Worked example
1,00,000 at 7% compounded quarterly for 3 years: FV = 1,00,000 × (1.0175)¹² ≈ 1,23,144, so gross interest is about 23,144 and the annualised return about 7.19% — the effective rate of 7% quarterly compounding.
Frequently asked questions
What is maturity value?
The amount returned when the deposit term ends: the principal plus any interest that was reinvested. With periodic payouts, the maturity value is just the principal, because the interest was already paid to you.
Does the calculator use simple or compound interest?
Whichever you select. Bank deposits usually compound (quarterly is common in India); some short-term or payout products effectively pay simple interest. Check your product's terms.
What if interest is paid out regularly?
Each payout is principal × rate ÷ payouts per year, and it does not compound. The total interest is lower than reinvesting — the calculator shows the difference honestly.
Are fees and taxes included?
If you enter them: one-time fees and a tax rate on interest both reduce the net figures. Actual tax treatment varies by country and person, so this stays a simple assumption.
Does this show a live bank rate?
No. Every rate here is one you typed in. Bank rates change constantly and differ by term and amount — check current rates with the institution.
These estimates are for general information only and are not financial, tax, legal, or investment advice. Rates, fees, and lending rules vary by lender and country. Actual costs and outcomes may differ from the projections shown.