How much do I need to save to have £100k by 40?
Starting from zero at age 25 (15 years), you need about £290 a month invested at 7% to reach £100,000 by 40. Start at 30 instead and it jumps to roughly £480 a month.
How this is calculated
- ·7% average annual return
- ·Starting from £0
- ·Target £100,000
- ·Monthly contributions, compounded monthly
Monthly saving needed to hit £100k by 40
| Start age | Monthly amount |
|---|---|
| 25 (15 yrs) | £290 |
| 30 (10 yrs) | £480 |
| 35 (5 yrs) | £1,165 |
Frequently Asked Questions
Why does starting earlier matter so much?
Compound growth needs time. Starting at 25 instead of 35 roughly quarters the monthly amount needed, because the market does more of the work.
What return should I assume?
7% reflects a long-run diversified equity average. Cash savings at 4% would need a higher monthly contribution.
Should this be in an ISA?
A Stocks & Shares ISA keeps the growth tax-free, helping the pot reach £100,000 faster in real terms.
M Singh CeMAP DipFA · 25+ Years UK Financial Services
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M Singh CeMAP DipFA · 25+ Years UK Financial Services
Important Information
This calculator is for informational purposes only and does not constitute financial advice or a personal recommendation.
Results are estimates based on the information you provide and may not reflect your actual financial position.
You should consider seeking independent professional advice tailored to your specific circumstances before making any financial decision.