Savings Calculator
Find what savings grow to with yearly and monthly deposits that rise each year, compound interest and tax.
Change the values and press Calculate to work out your own figures.
Enter the starting deposit, contributions, rate and years.
| Year | Contributions | Interest | Balance |
|---|---|---|---|
| 1 | $5,000.00 | $600.00 | $25,600.00 |
| 2 | $5,150.00 | $768.00 | $31,518.00 |
| 3 | $5,304.50 | $945.54 | $37,768.04 |
| 4 | $5,463.64 | $1,133.04 | $44,364.72 |
| 5 | $5,627.54 | $1,330.94 | $51,323.20 |
| 6 | $5,796.37 | $1,539.70 | $58,659.27 |
| 7 | $5,970.26 | $1,759.78 | $66,389.31 |
| 8 | $6,149.37 | $1,991.68 | $74,530.36 |
| 9 | $6,333.85 | $2,235.91 | $83,100.12 |
| 10 | $6,523.87 | $2,493.00 | $92,116.99 |
Show the working
- each month: balance × periodic rate × (1 − tax) is added, with contributions at the start or end
- periodic rate = (1 + r ÷ n)^(n ÷ 12) − 1
How to use it
Enter the starting deposit, contributions, rate and years.
Enter amounts without commas or with them; rates are percentages (5 for 5%). Negative amounts are allowed where a sign means money paid out.
Key facts
each month: balance × periodic rate × (1 − tax), then the month's contribution; contributions rise once a year
Questions
What do $20,000 and $5,000 a year rising 3% become at 3% in 10 years?
$92,116.99.
Formulas
each month: balance × periodic rate × (1 − tax), then the month's contribution; contributions rise once a year
Sources
Limitations
- Results are estimates for planning, not offers or financial advice; lenders and banks may round, count days or time payments differently.
- Rates are nominal annual rates compounded as you choose; payments at a different frequency use the equivalent periodic rate.