๐น NISA / DCA Investment Simulator
Enter your monthly contribution amount, expected annual return, and investment period to simulate the total principal, investment gain, and final value of a regular (dollar-cost averaging) investment plan such as tsumitate NISA.
How to use
- Enter the monthly contribution amount.
- Enter the expected annual return.
- Enter the investment period in years.
- Total principal, investment gain, and final estimated value are calculated automatically.
FAQ
Is this simulation guaranteed to match real investment results?
No. This is only an estimate assuming the entered annual return holds steady every year. Actual market returns fluctuate and may be higher or lower than simulated.
Does this account for NISA's tax-free limits?
No. This simulator does not model NISA annual or lifetime tax-free investment limits, or any tax rules. It simply projects compound growth of regular contributions.
How is compounding calculated?
The expected annual return is converted to a monthly rate, and each month's contribution is assumed to compound at that monthly rate for the remaining months in the period.
What return rate should I assume?
There's no guarantee past performance will repeat, but many people use a reference figure around 3-5% for planning purposes. Adjust it to match your own investment outlook.
Can I compare different investment periods?
Yes โ just change the number of years and the total principal, gain, and final value recalculate, so you can compare, say, 10 years against 20 years.