No savings at 40? Here’s how to try and build a £500k SIPP

The SIPP, or Self-Invested Personal Pension, is one of the most flexible and tax-efficient ways to save for retirement.
For anyone reaching 40 with little or no savings, the idea of building a £500k pension pot might seem out of reach â but itâs not impossible.
With disciplined contributions, smart investing, and the power of compounding, itâs still achievable over a 25-year horizon.
A SIPP allows investors to choose their own funds, shares, bonds, or ETFs, giving greater control over long-term returns compared with traditional workplace pensions. The key is starting now and sticking to a well-diversified, growth-focused strategy.
Please note that tax treatment depends on the individual circumstances of each client and may be subject to change in future. The content in this article is provided for information purposes only. It is not intended to be, neither does it constitute, any form of tax advice. Readers are responsible for carrying out their own due diligence and for obtaining professional advice before making any investment decisions.
Still time to compound
The magic of investing over a long period of time is compounding. This is when our investment start generating returns on previous returns. This is exponential growth.
So, how would one create a £500,000 SIPP from the age of 40? Well, hereâs one theoretical calculation.
If a saver puts £640 per month into their pension, and then receives basic tax relief of 20%, the total monthly investment would be £800. Assuming 8% annualised growth, this portfolio would reach £500,000 in 20.5 years.
In turn, this could generate an income worth around £20,000 per year. It might not be enough to retire on, but itâll be complemented by the State Pension when that age â whatever it may be in 20/30-odd years â kicks in.
The reality is that anyone looking to rely on the SIPP to take an early retirement may need a few more years of compounding.
Thatâs because after 25 years, this portfolio would be worth £760,000. That means it could deliver more than £30,000 annually.
The longer we let it grow, the more impressive the rate of growth.

Where to invest?
The tricky part is knowing where to invest. Many novice investors will start by taking positions in diversified investment opportunities. This includes vehicles like ETFs or trusts.
One great place to start is Baillie Giffordâs Scottish Mortgage Investment Trust or even The Monks Investment Trust (LSE:MNKS).
The Monks Investment Trust offers investors an enticing route to long-term capital growth through a globally diversified equity strategy.
Rather than chasing short-term gains, Monks focuses on businesses addressing major global challenges in innovative ways. This includes those capable of reducing costs or transforming the quality of services.
The trustâs portfolio includes household names such as Nvidia, Microsoft, and TSMC, alongside differentiated holdings like The Schiehallion Fund.
It has outperformed the FTSE All World Index over one year and 10 years, although it lags on a three- and five-year basis â itâs up 293% over 10 years.
However, investors should be aware that the trust is leveraged. This means it uses borrowing to finance some of its investments. Great when stocks are moving up, but less good when theyâre in reverse.
Today, itâs trading at a 5.3% discount to net asset value (NAV) and with low ongoing charges of 0.43%, Monks represents an option worth considering.
The post No savings at 40? Hereâs how to try and build a £500k SIPP appeared first on The Motley Fool UK.
Should you invest £1,000 in The Monks Investment Trust PLC right now?
When investing expert Mark Rogers has a stock tip, it can pay to listen. After all, the flagship Motley Fool Share Advisor newsletter he has run for nearly a decade has provided thousands of paying members with top stock recommendations from the UK and US markets.
And right now, Mark thinks there are 6 standout stocks that investors should consider buying. Want to see if The Monks Investment Trust PLC made the list?
More reading
- Late to investing? Hereâs how to target a £1,963 passive income
- After soaring 282% is this blue-chip the best share to consider buying if markets crash in November?
- This FTSE 250 growth stock soared 75% in October! Time to consider buying?
- Lloyds shares doubled my money in 2 years â should I double down and buy more in November?
- 1 under-the-radar dividend growth stock to consider buying for passive income
James Fox has positions in Nvidia, Scottish Mortgage Investment Trust Plc, and The Monks Investment Trust Plc. The Motley Fool UK has recommended Microsoft, Nvidia, and Taiwan Semiconductor Manufacturing. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.
