Considering a Stocks and Shares ISA this April? Avoid these mistakes!

When opening a Stocks and Shares ISA for the first time, it’s easy to fall foul of some costly mistakes. Our writer details the two most common ones.

| 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.

ISA Individual Savings Account

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.

A new tax year has rolled around, so the £20k annual allowance for a Stocks and Shares ISA has been reset. That means investors can start piling a fresh allocation of assets into their accounts. And for those who don’t have one yet, now may be a good time to think about opening one to build up a tax-free pot.

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.

However, there are some important pitfalls to be aware of when getting started. Not all ISAs are created equal and there are some specific factors to take into account, depending on individual needs.

Consider the following two mistakes that many first-time investors make.

Holding too much cash

While it’s natural to want to wait for the ‘perfect’ time to invest, holding a lot of capital in cash funds can be counterproductive. These accounts are designed for long-term investing in the stock market, not for storing idle funds. With inflation eroding the real value of uninvested cash, waiting too long to deploy funds could mean missing out on potential gains.

Instead, a strategy of pound-cost averaging – investing small amounts regularly over time – can help smooth out market volatility and ensure capital doesn’t stagnate for months on end.

Ignoring fees and platform charges

Choosing the wrong ISA provider can eat into long-term returns. Some platforms charge a percentage-based fee on assets held, while others apply flat fees regardless of account size. For smaller portfolios, percentage fees may seem harmless, but they can quickly mount up. On the other hand, fixed fees might be less suitable for those starting with only a modest sum.

It’s also important to watch out for fund management charges. Actively managed funds typically carry higher fees than passive options like index trackers. Being cost-conscious when selecting both a provider and investments could have a significant impact on long-term performance.

A stock to consider

With the above in mind, first-time ISA investors may want to consider a ‘starter stock’ like Diageo (LSE: DGE). The global drinks giant owns household names like Guinness, Johnnie Walker, and Tanqueray. Its diverse mix of top-shelf and affordable brands ensures it brings in revenue from both developed and emerging markets.

When looking at recent performance, Diageo might seem like an odd choice to consider. The stock has had something of a rough time lately, dropping 51% in the past three years. A perfect storm of Covid-era losses combined with high inflation and declining sales in Latin America drove the decline.

Add to that a trend towards lower alcohol consumption among youth and the losses are understandable. If things don’t improve soon, it may have to cut dividends to save money — or raise funds by diluting shareholders. Both options pose a risk to investor sentiment.

But Diageo and its brands have been a staple of global celebrations and gatherings for decades. Demand is unlikely to disappear completely, particularly as the company pivots toward low- and no-alcohol products.

Plus, the falling price means it now has an attractive price-to-earnings (P/E) ratio of only 15.6.

Recent results show signs of stabilisation, with £11bn in net sales for the first half of fiscal 2024 and a notable recovery in Asia-Pacific and Latin America. Another strong sign of stability is its commitment to dividends, which have increased at a rate of 5.45% every year for decades.

Mark Hartley has positions in Diageo Plc. The Motley Fool UK has recommended Diageo Plc. 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 »