Compound Interest
See how savings and investments grow over time. Adjust the return rate to see the dramatic long-term effect.
Total contributed
£65,000
Investment growth
£71,508
Final value
£136,508
Growth over 25 years
Total value Your contributions
Your money grew by £71,508 — that's 110% more than you put in.
Investment returns are not guaranteed. The value of investments can fall as well as rise. Higher expected returns come with higher risk. Past performance does not predict future results. Inflation will reduce the real purchasing power of your savings.
Assumptions
Based on 2026/27 UK tax rules for England. Tax bands: 20% to £50,270, 40% to £125,140, 45% above. Personal Allowance £12,570 (tapered above £100,000). National Insurance 8% on earnings between £12,570 and £50,270, 2% above. This is an educational estimate — not financial advice.