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.

Are you still making this classic retirement savings mistake?

Looking to secure a comfortable retirement? You’re very unlikely to get there if you do this.

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!.

Making mistakes is somewhat inevitable when it comes to money. We buy things we don’t need or never use, perhaps getting into debt in the process. We shower cash on stuff we believe will bring us long-lasting happiness without recognising that the joy we get from new possessions quickly diminishes. 

Even when our goals are admirable — such as saving for a more comfortable retirement — the strategy being used is often less than optimal. I’d lump saving with a cash ISA firmly within the second camp. 

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.

Based on recent research, however, it looks like many of us are still doing just that.  

According to HMRC, the share of cash ISA subscriptions as a proportion of all ISA subs was 72% in 2017/18. What’s more, the amount of cash plowed into these accounts actually rose (albeit only very slightly) to around £40bn.

The lure of cash

Don’t get me wrong — I understand why saving into this kind of account looks sensible to many Britons.

First, cash isn’t volatile like some assets. If you move money into a cash ISA at the start of the tax year, you can be sure that you’ll have the same amount by the end of the year (plus interest). In the fragile political and economic climate we’re in, that’s comforting, as is the fact that you can get access to your money whenever you want.

Second, saving into this wrapper means that you don’t pay any tax on any of the aforementioned interest you receive.

Problem is, these ‘advantages’ can be easily challenged.  

The bad news

For one thing, the level of interest on instant access cash ISA accounts remains paltry. The best you can hope for at the current time is 1.5% according to Moneysavingexpert.com. That’s below the savings rates of some current accounts.

That 1.5% is below inflation too. This means your money is losing purchasing power the longer it sits there. They don’t call it the ‘silent killer’ for nothing. 

The tax benefits are also questionable. Thanks to the annual savings allowance, most people won’t end up owing the taxman anything on the interest they receive anyway, even if it’s outside the ISA wrapper.

A better strategy

Now, having three to six months worth of expenses saved in cash is a great idea and can help pay for any unexpected costs that crop up. 

After this, however, it won’t come as a surprise that I believe those focusing on building a better retirement should be putting that money to work in a stocks and shares ISA. Not only do these accounts shield owners from income tax (on dividends), they also protect you from needing to pay capital gains tax on any profits you make.

Sure, the stock market can be volatile, but this shouldn’t matter to anyone investing for decades rather than days. Over time, equities have been shown to consistently outperform every other asset class. If you invested the full ISA subscription (£20,000) today and did nothing for 30 years, you’d have more than £150,000 by 2049, assuming a 7% annual return.

So, as we approach the ISA deadline (5th April), have a think about whether you’re making the most of your allowance.

For me, throwing any surplus cash into a diversified portfolio of dividend-paying stocks with bright futures will always be a far better strategy for making your twilight years as comfortable as possible.  

Paul Summers has no position in any of the shares mentioned. The Motley Fool UK has no position in any of the shares mentioned. 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

Here’s why Babcock and BAE Systems shares got a Burnham boost today

New PM Andy Burnham has announced his cabinet and defence stocks are rising. But where have I got my money:…

Read more »

Investing Articles

3 under-the-radar UK growth shares that are quietly beating the S&P 500 in 2026

Our writer highlights three British growth shares that have made spectacular gains this year, while everyone was distracted by AI…

Read more »

Close-up image depicting a woman in her 70s taking British bank notes from her colourful leather wallet.
Investing Articles

Here’s the passive income 1,000 Greggs shares could deliver per year

This writer plans to hang onto his Greggs shares because he thinks they are undervalued. But he also likes the…

Read more »

A row of satellite radars at night
Investing Articles

This ex-penny stock has crushed Rolls-Royce shares over 5 years! Is there more to come?

With all eyes on Rolls-Royce shares, this growth share with a connection to SpaceX might have gone unnoticed by a…

Read more »

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

With a 6.4% yield and P/E of 10 is this FTSE dividend stock a hidden passive income gem?

Building a portfolio of solid UK dividend stocks isn't hard. Paul Summers takes a closer look at one high-yielding candidate…

Read more »

Black woman using smartphone at home, watching stock charts.
Growth Shares

At 112p, where next for the Lloyds share price? 168p or 56p?

Jon Smith mulls over the direction going forward for the Lloyds share price, and explains why two very different scenarios…

Read more »

Investing Articles

This dividend stock has a 7.3% yield, and Stocks and Shares ISA investors are buying!

Looking to move from a Cash ISA to a Stocks and Shares ISA to target passive income? Alan Oscroft has…

Read more »

Surprised Black girl holding teddy bear toy on Christmas
Investing Articles

Could Rolls-Royce shares lock in another 34% gain before Christmas?

Mark Hartley takes a look at some of the more optimistic price targets for Rolls-Royce, and considers a best-case scenario.…

Read more »