Thinking of opening a Cash ISA? Read this first

Are Cash ISAs the best way to build up your wealth?

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.

The Cash ISA is one of the most popular savings products in the UK. Indeed, according to statistics from HMRC, at the end of the 2017/2018 financial year, Britons had nearly £270bn saved in them. 

But is it the best type of financial product to open if you’re looking to build up your wealth? Possibly not. Here’s a closer look at some of the advantages and disadvantages of saving in one.

Advantages

The main advantage of saving in a Cash ISA is that any income you generate on your savings is tax-free. That’s no doubt a big benefit. Whenever you’re given the opportunity in life to shelter income from the taxman legally (which is not often), you should definitely take it. Currently, you can put up to £20,000 per year into a Cash ISA. So if you have spare cash to save, you could potentially build up a large pot of money in which the interest generated is not subject to tax.

Another key feature is that they offer high levels of security. Unlike shares or property, savings within a Cash ISA are not going to fluctuate in value. Furthermore, your savings are protected by the Financial Services Compensation Scheme (FSCS), assuming your ISA provider is UK-regulated. In the event that your ISA provider collapsed or went bankrupt, the FSCS would provide cover of £85,000 per person per financial institution. So, Cash ISAs are essentially risk-free investments. 

Also, Cash ISAs are generally quite flexible. If you need to pull your money out of your ISA you can, although this will affect your ISA allowance.

So, overall, they offer flexibility, security, and tax-efficiency. Sounds good, right?

Disadvantages

Hold on – cash ISAs also have a number of disadvantages. One key drawback is that you can only invest in cash savings products such as easy-access savings accounts, or fixed-rate savings accounts. And the interest rates on these kinds of products are very low. According to Moneyfacts, the average easy-access cash ISA rate is currently 1.29%. While that is the highest average rate since 2016, it’s still abysmal. For example, savings of £10,000 would earn you interest of just £129 per year. Is that going to make you wealthy? While you can pick up higher rates if you’re willing to lock your money away for a certain length of time, you then lose flexibility.

Another issue to consider is that the returns from cash ISAs are likely to be less than inflation, meaning any money in them is actually losing value in real-world terms. Inflation refers to the price rises of goods and services over time. You don’t notice it on a day-to-day basis, but over the long run, it can erode your spending power significantly. In August, inflation in the UK was registered at 2.7%, meaning that if your money is sitting in a cash ISA earning 1.29%, it’s actually losing value.

So, while the cash ISA does have benefits and could be useful for those saving for short-term goals, it’s not a great product for building long-term wealth, as the interest rates offered are too low. If you’re serious about making your money work for you, there are better options, such as a stocks and shares ISA or the Lifetime ISA, which offer access to a broad range of higher-growth investments.

More on Investing Articles

Middle aged businesswoman using laptop while working from home
Investing Articles

Is Legal & General a top bargain after its 8% share price drop?

Looking for brilliant dividend shares to buy on the cheap? Royston Wild takes a look at Legal & General following…

Read more »

Silhouette of a bull standing on top of a landscape with the sun setting behind it
Investing Articles

Up 19% in a day, is there more to come from the surging Diploma share price?

Diploma’s share price is storming higher. But does the stock offer safety in an uncertain market, or is buying at…

Read more »

Portrait Of Senior Couple Climbing Hill On Hike Through Countryside In Lake District UK Together
Investing Articles

How much do you need in a Stocks and Shares ISA to target £2,000 a month of passive income?

With a bit of maths, our writer illustrates how an investor could shrink their initial ISA investment while supersizing dividend…

Read more »

Number three written on white chat bubble on blue background
Investing Articles

The FTSE 100’s full of value shares at the moment. Here are 3 to consider

Recent events have taken their toll on the share prices of some of the UK’s biggest companies. But it also…

Read more »

Investing Articles

Should I buy beaten-down UK growth stocks today or conserve my cash for even bigger bargains?

Harvey Jones says the FTSE 100 is packed with cut-price growth stocks after recent volatility. Should investors buy now or…

Read more »

Number 5 foil balloon and gold confetti on black.
Investing Articles

£5,000 invested in Fresnillo shares 5 weeks ago is now worth…

Fresnillo shares have pulled back sharply from recent highs in the FTSE 100. Is this a chance to consider buying…

Read more »

Three signposts pointing in different directions, with 'Buy' 'Sell' and 'Hold' on
Investing Articles

Down 15%, are Lloyds shares simply too cheap to miss now?

Have the wheels come off the long-term growth story for Lloyds Bank shares, or are they dipping into bargain territory…

Read more »

Business manager working at a pub doing the accountancy and some paperwork using a laptop computer
Investing Articles

Are investors taking a massive gamble by chasing the BP share price higher?

Investors who thought the BP share price would continue to rocket as the Iran war intensifies may have been surprised…

Read more »