2 ISA mistakes I’m keen to avoid

Looking to make the most of your ISA? Here are two errors Royston Wild thinks all savers and investors need to beware of.

| 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.

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.

Businessman with tablet, waiting at the train station platform

Image source: Getty Images

The Individual Savings Account (ISA) is an excellent investment product, in my view.

With an annual allowance of £20,000, the Stocks and Shares ISA and Cash ISA meet the needs of most investors. With these tax wrappers, investors don’t pay a single penny in capital gains tax or dividend tax.

But while they’re good products, many investors make poor decisions when it comes to using their ISAs. Here are two mistakes I’m constantly seeking to avoid.

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.

1. Holding too much cash

It’s crucial that investors like me diversify across ‘risk on’ and ‘risk off’ assets.

Like many people, I do this by holding some of my capital in a savings account, and investing the rest in a variety of shares, trusts, and funds.

I can potentially get a better return with the stock market. But share investing can be volatile, and the value of my holdings could potentially sink. This is where the safe savings account comes in — my money is protected, and I can make a guaranteed return.

There’s no correct answer as to how much to hold in cash versus in stocks. This is a personal choice depending on one’s investing goals and risk tolerance. But I’m an ambitious investor, and worry about making poor returns by alloting too much capital in a savings account.

My money might be safe in a 4%-yielding cash account. But after 30 years, a £20,000 lump sum investment would turn into just £66,270.

By comparison, an 8%-returning basket of shares could make me more than three times as much (£218,715). This is why I constantly monitor my portfolio to check I’ve got the balance right.

Compound returns on a £20,000 investment.
Source: thecalculatorsite.com

2. Owning too few shares

Diversifying my stocks portfolio across a number of shares is another important concept for ISA investors. Failure to do this raises risk. It also limits my exposure to different investment opportunities.

A portfolio holding just two or three shares, for instance, could crash in the event of a single disappointing trading update.

I own roughly 10 to 15 individual shares across multiple sectors in my own portfolio. I also own several exchange-traded funds (ETFs).

Funds like this let me invest in dozens, even thousands, of underlying assets. And I only get charged a single transaction fee when I put in a buy order. Conversely, if I purchased each individual stock I’d pay a broker fee on each one.

The HSBC S&P 500 ETF (LSE:HSPX) is one such fund I currently own. As the name implies, it spreads my investment across the entire S&P 500, which in turn diversifies my holdings across many companies and industries.

Sector diversification
Source: HSBC

What’s more, its focus on large-cap multinational companies reduces my risk still further by providing exposure to different regions.

The past is not a reliable indicator of future returns. But the fund has delivered an average annual return of 13% over the last decade. This is the sort of figure that could supercharge my long-term wealth.

On the downside, the fund is likely to deliver a disappointing return during temporary economic downturns. But I’m confident it will be a great wealth creator for me over a few decades, driven by the strong US economy and 21st century technology boom.

Royston Wild has positions in Hsbc ETFs Public - Hsbc S&P 500 Ucits ETF. 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

Man riding the bus alone
Investing Articles

As the FTSE 100 nears 11,000, these top shares are still dirt cheap!

These FTSE shares aren't without risk. But at current prices, our writer Royston Wild thinks they're too good to ignore.…

Read more »

BUY AND HOLD spelled in letters on top of a pile of books. Alongside is a piggy bank in glasses. Buy and hold is a popular long term stock and shares strategy.
Investing Articles

What are the best FTSE 100 shares to consider buying for the next 5 years?

When picking FTSE 100 shares for the long term, Edward Sheldon follows Warren Buffett’s playbook and focuses on growth and…

Read more »

Family in protective face masks in airport
Investing Articles

£10,000 invested in Diageo and Rolls-Royce shares just 1 week ago is now worth…

Diageo and Rolls-Royce shares headed in totally different directions last week. Which FTSE 100 stock looks worth considering today?

Read more »

Diverse children studying outdoors
Growth Shares

I asked ChatGPT which growth stocks to put in my ISA and it gave me this surprising answer…

Jon Smith explains why ChatGPT didn't give him the best advice when it came to picking growth stocks, but outlines…

Read more »

A front-view shot of a multi-ethnic family with two children walking down a city street on a cold December night.
Investing Articles

£5,000 in this FTSE 250 leisure stock could generate £260 in passive income

Down 26%, this well-known company from the FTSE 250 index is offering attractive passive income, with a dividend yield above…

Read more »

A couple celebrating moving in to a new home
Investing Articles

Are £21 BAE Systems shares still undervalued?

BAE Systems shares hit the £21 mark for the first time recently. But could they still be a cheap buy…

Read more »

ISA Individual Savings Account
Investing Articles

Looking for FTSE 100 bargains before the ISA deadline? Here are 2 to consider

Looking for last minute additions for a high-power Stocks and Shares ISA? Royston Wild picks out two top FTSE 100…

Read more »

Two people socialising and drinking Guinness.
Investing Articles

Diageo’s share price is 61% off its highs! Time to consider buying?

Diageo's share price tumbled again last week after it cut forecasts. Is the FTSE 100 company now too cheap to…

Read more »