Why ditching your cash ISA could help you to beat inflation

Cash ISAs may be an ineffective means of generating inflation-beating returns.

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.

In recent years, cash ISAs have been seen as a sound means of generating tax-efficient returns. Unlike a savings account, they have not been subject to tax on interest received. This has significantly increased their returns on a relative basis and is a reason why they became relatively popular.

However, two factors have reduced the appeal of cash ISAs. The first is tax changes on interest income received, while the second is inflation. Due to the latter in particular, it may now be time to dump your cash ISA and invest in shares instead.

Tax changes

In previous years, interest income from cash balances was taxed at the same rate as an individual’s main income. This meant that taxpayers would pay at least 20% of all interest received as tax, with as much as 40% being paid among higher rate taxpayers. Now though, basic rate taxpayers do not pay any tax on the first £1,000 they receive in interest per year, while for higher rate taxpayers the allowance is £500.

This has significantly reduced the appeal of cash ISAs. For many people, a £1,000 allowance is sufficient to cover most (if not all) of the interest they receive per year. That’s especially the case since interest rates remain exceptionally low, so even relatively large cash balances are currently generating disappointing levels of overall return. As such, having a savings account rather than a cash ISA could be a worthwhile move.

Inflation

However, the main reason why cash ISAs are declining in popularity is the rise of inflation. While inflation has been relatively low in the last decade because of a global deflationary period, it has now spiked to around 3% following the EU referendum. This has caused the interest on cash ISAs to become negative in real terms, which means that holders  are seeing the value of their investments decline year-on-year.

In the long run, this could severely erode their purchasing power. And with the prospects for inflation being relatively high, it could rise yet further and lead to even greater loss of value in real terms for holders of cash ISAs.

Shares

One solution is to simply reinvest the bulk of the holder’s capital in shares. The FTSE 100 currently offers a dividend yield that is close to 4%, which means that it’s possible to obtain an inflation-beating income return while also having exposure to a wider range of companies. Certainly, there is scope for capital losses, but in the long run the index has always recovered from even its worst declines.

And for individuals seeking a higher income return, it’s possible to generate a 5%+ dividend yield in a range of large-cap stocks at the present time. Therefore, while cash ISAs had appeal in the past, changing circumstances mean that they may already have limited use in the real world.

More on Investing Articles

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

Warren Buffett profited massively from nervous markets. Here’s how!

With market turbulence making some investors nervous, our writer recalls several moments when Warren Buffett did well despite fearful markets.

Read more »

Close-up as a woman counts out modern British banknotes.
Investing Articles

How to target a 14%+ dividend yield by investing £10,000

There are many strategies for the average investor targeting a 14% dividend yield or higher. Our Foolish author explores one…

Read more »

Arrow symbol glowing amid black arrow symbols on black background.
Investing Articles

Up 6%, can this ‘gritty’ stock continue outperforming the rest of the FTSE 250?

ITV's share price is soaring as investors react to a resilient performance in 2025. The question is, can the FTSE…

Read more »

Investing Articles

How much income could £20k in a Stocks and Shares ISA give you today?

As the clock ticks on this year's Stocks and Shares ISA allowance, Harvey Jones looks at how investors could use…

Read more »

Investing Articles

What next for the Endeavour Mining share price after a record-breaking set of results?

Since March 2025, Endeavour Mining’s share price has risen 175%. Do the gold miner’s latest results provide any clues as…

Read more »

Rolls-Royce's Pearl 10X engine series
Investing Articles

How are Rolls-Royce shares looking in March 2026?

March promises to be an interesting time for Rolls-Royce shares, but should investors be worried or calm about developments?

Read more »

Black woman using smartphone at home, watching stock charts.
Investing Articles

3 these stocks are smashing BAE Systems shares – are they worth considering today? 

Harvey Jones looks at the impact of current events on BAE Systems shares this week, and highlights some FTSE 100…

Read more »

Santa Clara offices of NVIDIA
Investing Articles

At a forward P/E of 17, is Nvidia stock now a screaming buy?

Stephen Wright outlines why Nvidia stock could be better value now than it has been in a long time, despite…

Read more »