Tools
Model how contributions and an assumed return could build a portfolio over time. Illustrative only — capital at risk.
Calculator mode
£0 is allowed for a lump-sum-only illustration.
Choose an illustrative annual return to model. Actual investment returns can be higher or lower, and you could get back less than you invest. Illustrative assumption only — edit this to explore different outcomes.
Estimated portfolio value
£36,177.50
Based on a 7% assumed annual return
over 10 years
Total contributed
£25,000.00
Estimated investment growth
£11,177.50
Assumed annual return
7%
Investments can fall as well as rise in value, and you may get back less than you invest.
£25,000.00
Total contributed
+
£11,177.50
Estimated investment growth
=
£36,177.50
Estimated portfolio value
Estimated growth is about 31% of the final illustrated portfolio value.
These are illustrations, not forecasts. Actual returns can vary significantly and may be negative.
Lower growth
4.0%
£30,819.43
Your assumption
7.0%
£36,177.50
Higher growth
10.0%
£42,566.51
Educational comparisons only — not recommendations.
Increase contributions
Invest £50 more each month
£44,730.08
Difference: +£8,552.59
Invest longer
Invest for 5 more years
£64,979.98
Difference: +£28,802.49
Lower return assumption
Assume 2 percentage points less growth
£32,501.53
Difference: -£3,675.97
Chart view
Year 3
£7,703.18
Year 5
£15,641.72
Year 8
£25,043.29
Year 10
£36,177.50
Save different contribution, return or time assumptions and compare them side by side.
These calculations are illustrative only and are not forecasts, investment advice or guarantees of future returns. Investment values can fall as well as rise, and you may get back less than you invest.
Your calculated return is an illustration, not a rate offered by these products. Compare Stocks & Shares ISAs and investment platforms separately.
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Links are chosen from this category’s registry — not a generic keyword dump.