Share your opinion and earn yourself a free Motley Fool premium report!

We are looking for Fools to join a 75 minute online independent market research forum on 15th / 16th December.

To find out more and express your interest please click here

How I’d invest via my Stocks and Shares ISA with a £100k target

Rupert Hargreaves explains the investment approach he is using for his Stocks and Shares ISA with the goal of building a £100k nest egg.

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

A young woman sitting on a couch looking at a book in a quiet library space.

Image source: Getty Images

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

Investing through a Stocks and Shares ISA is, in my opinion, one of the best ways to build wealth. Indeed, I make all of my investments in my ISA wrapper, although the amount I can invest is limited. 

According to Stocks and Shares ISA rules, investors can only contribute £20,000 a year. This is a significant sum for most. According to data from HMRC, the majority of ISA investors do not even come close to this level. 

Stocks and Shares ISA tax benefits 

The great thing about using one of these wrappers is the fact that they are tax-efficient. Actually, they are tax-free. Any income or capital gains earned on investments held within an ISA wrapper is not liable for tax. Investors do not even have to declare the income on their tax returns. 

The benefits of this tax advantage cannot be understated. At present, as a basic rate taxpayer, I have to pay 7.5% dividend tax on any dividend income over £2,000 a year. This rate is increasing to 8.75% next year. 

Based on these figures, if I earn £5,000 a year in dividend income, I will have to pay 7.5% tax on £3,000. That is a total of £225 a year. 

According to my calculations, £225 invested in an asset yielding 6% a year could be worth £1,000 after 25 years. This is based on my personal tax situation. Every investor should always check their own tax obligations before investing.

However, I think the figures clearly illustrate the benefits of using a Stocks and Shares ISA wrapper to invest. By using this approach, I am targeting a £100k financial nest egg. 

The approach I plan to use to hit this target is relatively straightforward. I am using a combination of low-cost index tracker funds and high-quality stocks. 

My goal is to target an average annual return of around 8%. This is slightly below the long-term average return of the stock market, which is around 10%. However, I am aware past performance should never be used as a guide to future potential. That is why I am targeting a lower rate of return. 

Investment opportunities 

The companies I have been buying for my Stocks and Shares ISA portfolio include AstraZeneca and Diageo. I think these are some of the highest quality corporations on the London market.

They have international footprints and diverse portfolios of products and treatments. Further, they can also spend substantial sums every year marketing their products to consumers, which gives them a competitive edge. That said, they will face risks such as competition and higher costs, which could put some investors off from owning these equities. 

Alongside these stocks, I would also acquire the Fidelity Index World global index tracker fund. 

Using this combination of investments, if I can hit my 8% per annum return target, I believe I can build a £100,000 Stocks and Shares ISA within eight years. That is assuming a monthly investment of £1,000. While there may be some bumps along the way, this is the approach I will be using to invest my money. 

Rupert Hargreaves owns shares of Diageo. The Motley Fool UK has recommended Diageo. 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.

More on Investing Articles

Investing Articles

The BP share price could face a brutal reckoning in 2026

Harvey Jones is worried about the outlook for the BP share price, as the global economy struggles and experts warn…

Read more »

Midnight is celebrated along the River Thames in London with a spectacular and colourful firework display.
Investing Articles

How on earth did Lloyds shares explode 75% in 2025?

Harvey Jones has been pleasantly surprised by the blistering performance of Lloyds shares over the last year or two. Will…

Read more »

Group of four young adults toasting with Flying Horse cans in Brazil
Investing Articles

Down 56% with a 4.8% yield and P/E of 13 – are Diageo shares a generational bargain?

When Harvey Jones bought Diageo shares he never dreamed they'd perform this badly. Now he's wondering if they're just too…

Read more »

Number three written on white chat bubble on blue background
Investing Articles

Could these 3 holdings in my Stocks and Shares ISA really increase in value by 25% in 2026?

James Beard’s been looking at the 12-month share price forecasts for some of the positions in his Stocks and Shares…

Read more »

National Grid engineers at a substation
Investing Articles

2 reasons I‘m not touching National Grid shares with a bargepole!

Many private investors like the passive income prospects they see in National Grid shares. So why does our writer not…

Read more »

Number 5 foil balloon and gold confetti on black.
Investing Articles

£10,000 invested in Greggs shares 5 years ago would have generated this much in dividends…

Those who invested in Greggs shares five years ago have seen little share price growth. However, the dividends have been…

Read more »

Rolls-Royce Hydrogen Test Rig at Loughborough University
Growth Shares

Here is the Rolls-Royce share price performance for 2023, 2024, and 2025

Where will the Rolls-Royce share price be at the end of 2026? Looking at previous years might help us find…

Read more »

Investing Articles

This FTSE 250 stock could rocket 49%, say brokers

Ben McPoland takes a closer look at a market-leading FTSE 250 company that generates plenty of cash and has begun…

Read more »