The top 5 mistakes Britons make when saving for retirement

British adults make plenty of mistakes when saving for retirement but it doesn’t take much to get back on the right path.

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.

Retirement should be something to look forward to, but unfortunately, many British adults don’t take their retirement planning seriously enough and as a result, are woefully under-prepared for their golden years. Here’s a look at five key savings mistakes many Britons are making.

Starting too late

This is a common problem. Many people tend to ignore their retirement savings in their 20s, 30s and 40s and only start thinking about how they’ll fund their retirement years in their 50s. Unfortunately, this is often too late.

The earlier you start saving for retirement the better, simply due to the powerful effects of compounding (earning interest on your interest). Start saving £500 per month at 25 and earn 10% per year, and you’ll amass nearly £3 million by the time you’re 65. In contrast, start saving £500 per month at 50 and earn 10% per year, and it will only grow to £216,000 by age 65.

Not taking advantage of employer contributions

The UK workplace pension landscape has improved in recent years and it’s now compulsory for employers to automatically enrol their eligible workers into a pension scheme and pay in money. That’s a good thing.

Yet many Britons are not taking full advantage of their workplace pensions and capitalising on bonus top-ups from their employers. Extra contributions could make a big difference to your wealth over the long run, so it’s definitely worth finding out if your employer will contribute more if you top-up your regular payments.

Not using tax-efficient products

In the UK, the government has also set up a number of products that are designed to help people save for retirement in a tax-efficient way. For example, we have the self-invested personal pension (SIPP), which is a do-it-yourself pension that offers tax relief. We also have a number of different Individual Savings Accounts (ISAs) including the Cash ISA, the Stocks & Shares ISA and the Lifetime ISA, which are all completely tax-free. Yet many people are not taking advantage of these products, which could be a huge mistake.

Holding too much cash

Having some cash savings is always important. Yet when saving for retirement, cash is not an effective investment. When you account for the effects of inflation, you’re probably going backwards in the long run if your savings are all in cash. When saving for the long term, it’s important to ensure that your money is invested in assets that can grow your wealth at a healthy rate. 

Not having a proper asset allocation

Which brings me to asset allocation. This is the process of spreading your money across a range of different assets such as shares, bonds and cash. The idea behind asset allocation is to generate maximum gains for your personal risk tolerance while at the same time, reduce the overall risk of your portfolio.

Asset allocation is an extremely important financial concept and studies have shown that over the long term, it can actually explain around 90% of investment returns. So, it’s worth spending some time thinking about the best mix of assets for your personal requirements and risk tolerance and putting a proper asset allocation in place.

Saving for retirement doesn’t need to be complicated or time-consuming. Yet at the same time, it’s important to think about your retirement nest egg every now and then to ensure you’re on track for a comfortable retirement.

More on Investing Articles

Group of young friends toasting each other with beers in a pub
Investing Articles

FTSE 100 shares: has a once-a-decade chance to build wealth ended?

The FTSE 100 index has had a strong 2025. But that doesn't mean there might not still be some bargain…

Read more »

Passive income text with pin graph chart on business table
Investing Articles

I asked ChatGPT for its top passive income ideas for 2026 and it said…

Stephen Wright is looking for passive income ideas for 2026. But can asking artificial intelligence for insights offer anything valuable?

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

Here’s how a 10-share SIPP could combine both growth and income opportunities!

Juggling the prospects of growth and dividend income within one SIPP can take some effort. Our writer shares his thoughts…

Read more »

Tabletop model of a bear sat on desk in front of monitors showing stock charts
Investing Articles

The stock market might crash in 2026. Here’s why I’m not worried

When Michael Burry forecasts a crash, the stock market takes notice. But do long-term investors actually need to worry about…

Read more »

Person holding magnifying glass over important document, reading the small print
Investing Articles

Is this FTSE 250 retailer set for a dramatic recovery in 2026?

FTSE 250 retailer WH Smith is moving on from the accounting issues that have weighed on it in 2025. But…

Read more »

Young Black woman using a debit card at an ATM to withdraw money
Investing Articles

I’m racing to buy dirt cheap income stocks before it’s too late

Income stocks are set to have a terrific year in 2026 with multiple tailwinds supporting dividend growth. Here's what Zaven…

Read more »

ISA Individual Savings Account
Investing Articles

Aiming for a £1k passive income? Here’s how much you’d need in an ISA

Mark Hartley does the maths to calculate how much an investor would need in an ISA when aiming for a…

Read more »

Two business people sitting at cafe working on new project using laptop. Young businesswoman taking notes and businessman working on laptop computer.
Investing Articles

Is investing £5,000 enough to earn a £1,000 second income?

Want to start earning a second income in the stock market? Zaven Boyrazian breaks down how investors can aim to…

Read more »