How this calculator works
The generic model uses the future value of a monthly annuity: FV = D × ((1+i)^n − 1) / i, with a one-period annuity-due adjustment for beginning-of-period deposits.
Formula
FV = D × ((1+i)^n - 1) / i; beginning timing multiplies by (1+i)Generic monthly recurring-deposit future-value model. Institution- or jurisdiction-specific compounding conventions require a certified rule pack.
Worked example
$10,000 monthly deposit for 5 years at 7% annual interest (beginning of month) is a verified test case used by the calculation engine.
Assumptions and limitations
- The annual rate remains constant and is converted to a monthly periodic rate.
- The monthly deposit remains fixed throughout the modeled term.
- This is a generic mathematical model; bank, product and country-specific RD compounding, accrual, tax and rounding conventions require a certified rule pack.
Methodology & sources
This calculator uses deterministic, versioned calculation logic. The formula and verified examples above are part of the calculation definition used by CalcuMint.
Frequently asked questions
Is this the exact maturity amount my bank will pay?
Not necessarily. The generic calculator models monthly deposits mathematically. A bank or jurisdiction-specific result requires its certified product and rule conventions.
Can I solve the monthly RD needed for a maturity goal?
Yes. The reverse solver calculates the level monthly deposit implied by the target maturity, rate, term and deposit timing.