How I’d invest £20k in a Stocks and Shares ISA

Rupert Hargreaves highlights the stocks and trusts he’d buy for his Stocks and Shares ISA with an investment of £20,000.

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.

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.

Stocks and Shares ISAs are among the best tools available for investors who want to save for the future. Individuals can deposit £20,000 a year into one of these tax-efficient wrappers. The allowance renews every tax year. 

Any income or capital gains earned on the investments held inside an ISA aren’t liable for tax. Investors don’t even have to declare the income on their tax returns.

I try and use as much of my allowance as possible every year, as it’s a use-it-or-lose-it allocation. Any unused allowance isn’t rolled over. 

With that in mind, this is how I’d invest my annual allowance of £20,000 this year. 

Stocks and Shares ISA investing 

The first thing I want to do is to build some international exposure into my portfolio. While investors can hold some global shares in a Stocks and Shares ISA, I’d rather own an investment fund and let its managers do the hard work for me. 

Two trusts I’d buy are the Monks Investment Trust and the Scottish Mortgage Investment Trust. Both of these have an international investment mandate and are searching for high-quality growth stocks worldwide. While investors should never use past performance to guide future potential, they both have a solid track record of finding underappreciated growth companies. 

As well as these international trusts, I’d also acquire some UK-focused investment funds. One trust I’d buy is the City of London. This is a top income trust and owns a portfolio of high-yield blue-chip shares. 

Alongside this blue-chip trust, I’d also acquire a small-cap-focused investment fund. Investing in smaller companies can be challenging, and I’d rather leave it to the experts who have more time to pick equities. The BlackRock UK Smaller Companies Fund has an excellent track record of finding these businesses. 

Those are the trusts I’d buy for my Stocks and Shares ISA. I’d invest around half of my portfolio in these funds. The rest I’d invest in a portfolio of my favourite individual equities. 

Company investing

I want to invest in companies that may benefit from major trends as we advance. For example, I’d buy Biffa, a leader in the recycling, an industry that’s becoming ever more important. I’d also require energy business SSE, which is becoming one of the country’s foremost renewable energy companies.

Alongside these enterprises, I’d also want to build exposure to the healthcare sector. Hikma is one of the world’s largest producers of low-cost generic medications. I think the demand for these products will increase as the global population grows.

And finally, I’d buy Computacenter. The IT infrastructure supplier has seen the demand for its services explode as companies have been forced to improve their technology during the pandemic. As the world becomes more digitised, I think this trend will continue

I’d buy these individual companies for my Stocks and Shares ISA, but they may not be suitable for all investors. They could face significant challenges going forward, including higher costs, competition and even additional regulations, restricting profitability.

Rupert Hargreaves has no position in any of the shares mentioned. The Motley Fool UK has recommended Hikma Pharmaceuticals. 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

Chalkboard representation of risk versus reward on a pair of scales
Investing Articles

2 high risk/high reward stock market picks to consider in 2026

The coming year could bring about lots of stock market opportunities for brave investors willing to stomach risk. Mark Hartley…

Read more »

Investing Articles

ChatGPT thinks these are the 5 best FTSE stocks to consider buying for 2026!

Can the AI bot come up trumps when asked to select the best FTSE stocks to buy as we enter…

Read more »

Investing For Beginners

How much do you need in an ISA to make the average UK salary in passive income?

Jon Smith runs through how an ISA can help to yield substantial income for a patient long-term investor, and includes…

Read more »

Investing Articles

3 FTSE 250 shares to consider for income, growth, and value in 2026!

As the dawn of a new year in the stock market approaches, our writer eyes a trio of FTSE 250…

Read more »

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

Want to be a hit in the stock market? Here are 3 things super-successful investors do

Dreaming of strong performance when investing in the stock market? Christopher Ruane shares a trio of approaches used by some…

Read more »

Two white male workmen working on site at an oil rig
Investing Articles

The BP share price has been on a roller coaster, but where will it go next?

Analysts remain upbeat about 2026 prospects for the BP share price, even as an oil glut threatens and the price…

Read more »

Investing Articles

Prediction: move over Rolls-Royce, the BAE share price could climb another 45% in 2026

The BAE Systems share price has had a cracking run in 2025, but might the optimism be starting to slip…

Read more »

Tesla car at super charger station
Investing Articles

Will 2026 be make-or-break for the Tesla share price?

So what about the Tesla share price: does it indicate a long-term must-buy tech marvel, or a money pit for…

Read more »