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Compound interest calculator

Initial investment [$]

Years invested [$]

Interest rate earned (annual) [%]

Recurring end of month contributions (0 if none) [$]

Recurring end of year contributions (0 if none) [$]

Expense ratio (0 if none) [%]

Capital gains tax rate (when sold) (0 if none) [%]

End balance before tax [$]

20405.14

End balance after tax [$]

17344.37

Table of monthly balances

MonthBalance [$]
110059.61
210119.58
310179.90
410240.58
510301.63
610363.04
710424.81
810486.95
910549.47
1010612.35
1110675.61
1210739.25
1310803.27
1410867.67
1510932.45
1610997.62
1711063.17
1811129.12
1911195.46
2011262.20
2111329.33
2211396.87
2311464.81
2411533.15
2511601.90
2611671.06
2711740.63
2811810.62
2911881.02
3011951.84
3112023.09
3212094.76
3312166.86
3412239.38
3512312.34
3612385.74
3712459.57
3812533.84
3912608.56
4012683.72
4112759.32
4212835.38
4312911.90
4412988.86
4513066.29
4613144.18
4713222.53
4813301.35
4913380.64
5013460.41
5113540.64
5213621.36
5313702.56
5413784.24
5513866.41
5613949.07
5714032.22
5814115.86
5914200.01
6014284.66
6114369.81
6214455.47
6314541.64
6414628.32
6514715.52
6614803.24
6714891.48
6814980.25
6915069.55
7015159.38
7115249.74
7215340.65
7315432.09
7415524.09
7515616.63
7615709.72
7715803.36
7815897.57
7915992.33
8016087.67
8116183.56
8216280.04
8316377.08
8416474.71
8516572.91
8616671.70
8716771.08
8816871.06
8916971.63
9017072.80
9117174.57
9217276.95
9317379.93
9417483.54
9517587.76
9617692.60
9717798.06
9817904.16
9918010.89
10018118.25
10118226.25
10218334.90
10318444.20
10418554.14
10518664.75
10618776.01
10718887.93
10819000.52
10919113.79
11019227.72
11119342.34
11219457.64
11319573.63
11419690.31
11519807.68
11619925.76
11720044.54
11820164.02
11920284.22
12020405.14

Plot of balance growth

Description

This calculator computes compound interest with optional monthly and/or yearly contributions, expense ratios and capital gains taxes. It assumes the assets are held for the number of years input, without selling.

An asset held longer than a year is typically subject to long-term capital gains taxes. These are 0 to 20% at the time of this writing—often roughly half the short-term rate.