We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

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.

Worried about the State Pension? I’d buy UK shares in an ISA to retire in comfort

Buying UK shares in an ISA could provide a generous nest egg that helps an investor overcome the State Pension’s uncertain outlook, in my view.

You’re reading a free article with opinions that may differ from The Twelfth Magpie’s Premium Investing Services. Become a member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn more, and get a free 'Best Buy Now' stock!.

Investing in UK shares after the stock market crash may not seem to be a sound means of building a retirement nest egg. However, indexes such as the FTSE 100 and FTSE 250 have long track records of growth that have seen them produce annualised total returns in the high-single digits.

As such, they could provide a sound means of countering a disappointing State Pension. It amounts to just £9,110 per year. Therefore, a supplementary passive income provided by an ISA portfolio of British shares could provide greater financial freedom for retirees.

Should you buy Rolls Royce shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

Buying UK shares after a stock market crash

The recent stock market crash has highlighted the potential for volatile performance from UK shares. However, bear markets, corrections and downturns can occur at any time. Indeed, any company can produce a disappointing performance that causes a fall in its stock price. In other words, the stock market is full of unknowns that can lead to disappointing returns and paper losses for investors over the short run.

However, in the long run, indexes such as the FTSE 100 and FTSE 250 have excellent track records of growth. They have historically outperformed other mainstream assets such as cash and bonds. Meanwhile, building a diverse portfolio of stocks is more accessible than investing in buy-to-let property. Therefore, long-term investors may be able to build a portfolio of stocks that produces a surprisingly large nest egg by the time retirement comes along. From this, a generous passive income may be drawn through a diverse range of UK shares.

Building an ISA portfolio to supplement the State Pension

An ISA portfolio of UK shares can help retirees to enjoy greater financial comfort. After all, the State Pension is unlikely to provide a sufficient income for most people. It currently amounts to around a third of the average UK salary. So it’s likely to require a supplementary passive income.

A Stocks and Shares ISA offers a convenient and cost-effective means of accessing the growth potential of the FTSE 100 and FTSE 250. An ISA can be set up online in a matter of minutes. Meanwhile, the cost of administering it is extremely low, in many cases. Moreover, retirees can withdraw as much money as they like from an ISA at any time without penalty or tax payments. This makes them a flexible means to supplement the State Pension.

Clearly, buying UK shares means higher risks than other assets such as cash and bonds. However, the long-term growth prospects of a diverse ISA portfolio of stocks could make them relatively attractive on a risk/reward basis. As such, now could be the right time for an investor to consider purchasing FTSE 100 and FTSE 250 shares. Certainly while they trade at lower prices following the stock market crash.

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

Concept of two young professional men looking at a screen in a technological data centre
Investing Articles

The smart money thinks AI stocks look risky — but is there still a chance to buy?

According to fund managers, the AI trade is getting crowded. But they still seem to think it’s the place to…

Read more »

Man putting his card into an ATM machine while his son sits in a stroller beside him.
Investing Articles

Barclays shares are 11% below their 52-week high. Could they be a bit of a bargain to consider?

Overpriced or one of the FTSE 100’s hidden gems? James Beard takes a closer look at how the market is…

Read more »

Stack of one pound coins falling over
Investing Articles

Down 65% but yielding 6.7% – is this beaten-down UK stock now a generational bargain?

Harvey Jones says this UK stock is one of the worst FTSE 100 performers but there are sound reasons to…

Read more »

Portrait of elderly man wearing white denim shirt and glasses looking up with hand on chin. Thoughtful senior entrepreneur, studio shot against grey background.
Investing Articles

Is this FTSE stock really 46% undervalued?

Analysts reckon this FTSE stock should be worth nearly 50% more. James Beard considers why there’s so much positivity surrounding…

Read more »

Front view of a young couple walking down terraced Street in Whitley Bay in the north-east of England they are heading into the town centre and deciding which shops to go to they are also holding hands and carrying bags over their shoulders.
Investing Articles

How much is needed in an ISA for passive income that covers the UK’s monthly average rent of £1,381?

The UK’s monthly average rent for May 2026 is £1,381. Muhammad Cheema looks at how much is needed to aim…

Read more »

A rear view of a female in a bright yellow coat walking along the historic street known as The Shambles in York, UK which is a popular tourist destination in this Yorkshire city.
Investing Articles

How have BAE Systems shares become a dividend powerhouse? 5 reasons why!

Dividends on BAE Systems shares have risen every year without fail since the early 2000s. So what's the FTSE 100…

Read more »

A senior man and his wife holding hands walking up a hill on a footpath looking away from the camera at the view. The fishing village of Polperro is behind them.
Investing Articles

Want to retire early? Here’s how a weak stock market could actually help

Christopher Ruane demonstrates with a real-world example how a tumbling stock market could potentially help someone who wants to retire…

Read more »

Tanker coming in to dock in calm waters and a clear sunset
Investing Articles

BP shares: still priced as an oil major — but the market may be behind the curve

Andrew Mackie looks at BP shares and why investors may be underestimating the quality and concentration of its underlying asset…

Read more »