3 steps to consider to target a million pound UK shares portfolio!

Looking for ways to supercharge a UK shares portfolio? Here are three tips that on their own could deliver huge long-term wealth.

| More on:

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.

Thoughtful man using his phone while riding on a train and looking through the window

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.

History shows that, with the right strategy, investing in UK shares can be an effective way to make a million pounds or more by retirement.

WIth this in mind, are three steps for investors targeting a seven-figure portfolio to consider.

1. Try to eliminate tax

The first thing to think about is opening an investment account that can reduce or eliminate one’s tax liabilities. In the UK, we’re talking about the Individual Savings Account (ISA) and the Self-Invested Personal Pension (SIPP).

The beauty of these tax wrappers is twofold. Not only can they save investors a boatload of cash from the clutches of HMRC. The money that’s shielded can also be reinvested, giving individuals a chance to supercharge portfolio growth through the miracle of compounding.

Stocks and Shares ISA investors can invest £20k a year, while SIPP users can deposit a sum equal to their annual salary (up to a maximum of £60k).

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.

2. Invest as early as possible

‘Time in the market beats timing the market’, as the old saying goes. Rather than waiting for the best opportunity to buy, investing as soon as possible — and then keeping one’s money locked up in the markets — is proven the most effective way to build long-term wealth.

Fresh evidence from Hargreaves Lansdown underlines the effectiveness of such a strategy. It says that more than a third (34%) of the Stocks and Shares ISA millionaires on its books topped up their portfolio in the first two weeks of the 2024/25 tax year.

By comparison, just 2% of its millionaires invested in the final two weeks of the period.

3. Build a diversified portfolio

The final thing to consider is creating an ISA and SIPP that’s well diversified across a number of lines (such as sector and geography). This provides investors with exposure to multiple investing opportunities, as well as risk mitigation that limits the impact of one or two underperforming assets.

This can be achieved by buying a range of individual shares. Investing in trusts or funds that hold a variety of assets works, too. I personally use a mix of both strategies, and the iShares S&P 500 ETF (LSE:CSPX) is an exchange-traded fund (ETF) I currently own.

In fact, it’s currently one of my largest holdings. With an stunning average annual return of 13.2% since 2010, I don’t think it’s difficult to see why.

Past performance isn’t always a reliable guide to future returns. But if this ETF’s strong record continues, someone who invested £500 here a month would — after 25 years — have built an ISA or SIPP portfolio of £1.16m (excluding trading fees).

Source: thecalculatorsite.com

With holdings in approximately 500 large-cap companies, this one fund could facilitate a well diversified portfolio just on its own. With multinationals like Nvidia, Visa, Coca-Cola, and Amazon in its ranks, it achieves broad exposure by geography. And as that list shows, it’s also effectively diversified by industry.

Its performance more recently has been dented by the threat of growth-sapping trade wars. While this remains a threat going forwards, I believe S&P 500-based funds like this should remain powerful long-term investments.

John Mackey, former CEO of Whole Foods Market, an Amazon subsidiary, is a member of The Motley Fool’s board of directors. Royston Wild has no position in any of the shares mentioned. The Motley Fool UK has recommended Amazon, Nvidia, and Visa. 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

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

Can someone invest like Warren Buffett with a spare £500?

Christopher Ruane explains why an investor without the resources of billionaire Warren Buffett could still learn from his stock market…

Read more »

Investing Articles

Can these 2 incredible FTSE 250 dividend stocks fly even higher in 2026?

Mark Hartley examines the potential in two FTSE 250 shares that have had an excellent year and considers what 2026…

Read more »

Thoughtful man using his phone while riding on a train and looking through the window
Investing Articles

Is 45 too late to start investing?

Investing at different life stages can come with its own challenges -- and rewards. Our writer considers why a 45-year-old…

Read more »

Hand of person putting wood cube block with word VALUE on wooden table
Investing Articles

UK shares look cheap — but the market might be about to take notice

UK shares have traded at a persistent discount to their US counterparts. This can create huge opportunities, but investors need…

Read more »

Investing Articles

This FTSE 100 growth machine is showing positive signs for a 2026 recovery

FTSE 100 distributor Bunzl is already the second-largest holding in Stephen Wright’s Stocks and Shares ISA. What should his next…

Read more »

Investing Articles

I asked ChatGPT for the best FTSE 100 stocks to buy for passive income in 2026 and it said…

Paul Summers wanted to learn which dividend stocks an AI bot thinks might be worth buying for 2026. Its response…

Read more »

ISA Individual Savings Account
Investing Articles

Stop missing out! A Stocks and Shares ISA could help you retire early

Investors who don't use a Stocks and Shares ISA get all the risks that come with investing but with less…

Read more »

Investing Articles

Will Greggs shares crash again in 2026?

After a horrible 2025, Paul Summers takes a look at whether Greggs shares could sink even further in price next…

Read more »