How I’d aim to turn a £20k ISA into lifelong passive income!

Dr James Fox explains how he’d use a compound returns strategy and the FTSE’s wealth of dividend stocks to generate passive income over the long run.

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.

Young black man looking at phone while on the London Overground

Image source: Getty Images

When investing, your capital is at risk. The value of your investments can go down as well as up and you may get back less than you put in.

Read More

The content of this article is provided for information purposes only and is not intended to be, nor does it constitute, any form of personal advice. Investments in a currency other than sterling are exposed to currency exchange risk. Currency exchange rates are constantly changing, which may affect the value of the investment in sterling terms. You could lose money in sterling even if the stock price rises in the currency of origin. Stocks listed on overseas exchanges may be subject to additional dealing and exchange rate charges, and may have other tax implications, and may not provide the same, or any, regulatory protection as in the UK.

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.

Many Britons invest for passive income. And in the cost-of-living crisis, that passive income could be more important than ever.

Of course, if I had £20,000 — the maximum annual ISA contribution limit — I could invest in stocks and shares now and look to achieve an 8% return in the form of dividends. That’s around £1,600 a year. This is a decent figure, but over time, I’m going to need more — especially if inflation remains elevated.

For me, 8% is pretty much the most I could achieve without compromising the sustainability of the dividend. But with these stocks, many of them financials, I wouldn’t expect too much in the way of share price growth.

So, how could I turn a £20k ISA into a handsome, lifelong passive income? Let’s take a closer look.

Compound returns

First, I’m looking at a strategy to grow my £20k ISA. A compound returns strategy involves reinvesting my dividends and earning interest on my interest. Essentially, it’s very much like a snowball effect.

So, let’s imagine I invest my £20,000 into stocks paying an 8% dividend on average. And instead of taking that dividend every year, I reinvest that money for a period of 10 years. Well, after 10 years, my £20,000 would be worth £44,500.

In fact, the longer I leave it, the more I’d have. The growth is exponential. After 30 years, the figure would be £212,000. That’s a huge amount of growth.

I could also enhance this my investing regularly. If I added just £200 a month and increased my contributions by 5% every year, after 30 years, I’d have £718,000.

However, let’s imagine I’m only reinvesting my returns for 10 years, but I’m going to be contributing £200 a month, and every year I’m going to increase that contribution by 5%. After 10 years, I’d have £88,900.

And, with £88,900 I could realistically look to achieve around £7,100 a year by investing in dividend stocks with 8% yields. That’s a decent return and considerably larger than what I could achieve now.

But of course, I know that my stock picks could underperform so nothing is guaranteed.

Picking stocks

Ok, so looking on the bright side, how do I get there? The strategy sounds great but I need to pick the right stocks. I need to invest in sustainable yields, and as I’ve noted, I think 8% is pretty much the highest I can achieve.

One way to tell if a company has a sustainable dividend yield is by using the dividend coverage ratio (DCR). This metric shows me how many times a company can pay its dividends from its earnings over a year.

A DCR of two and above is generally considered healthy. However, it’s worth noting that companies with lower DCR, but strong cash flows, can have healthy yields.

And what stocks would I pick? Well, there are a handful of companies that I like. Many of which, such as Phoenix Group, Legal & General, and Aviva, I’ve already added to my portfolio. These stocks have an 8.8%, 8.4% and 7.5% yield, respectively.

Should you invest, the value of your investment may rise or fall and your capital is at risk. Before investing, your individual circumstances should be assessed. Consider taking independent financial advice.

James Fox has positions in Aviva Plc, Legal & General Group Plc, and Phoenix Group Holdings Plc. 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

I’d consider buying these FTSE 100 growth stocks for 2024 and beyond

I've been looking for growth stocks with low PEG valuations, and I'm finding plenty. But they're not at all where…

Read more »

Businesswoman calculating finances in an office
Investing Articles

Minimal savings? Here’s how I’d start investing with a Stocks and Shares ISA

A Stocks and Shares ISA is an ideal way for investors to get the most out of their hard-earned money…

Read more »

Young Caucasian woman with pink her studying from her laptop screen
Investing Articles

The Rolls-Royce share price frenzy is finally over. Is now the perfect time to buy?

Harvey Jones thinks the Rolls-Royce share price has risen too far, too fast. As investors start to calm down, a…

Read more »

Investing Articles

1 popular FTSE 100 share I wouldn’t touch with 2 bargepoles!

Hoping to get myself a bargain, I’m always keen to buy FTSE 100 shares after they’ve fallen in value. But…

Read more »

Illustration of flames over a black background
Investing Articles

Here’s why I’m staying well clear of Rivian stock

Electric vehicles have excited investors for years now, but can be hit or miss. Here's why Gordon Best will be…

Read more »

Chalkboard representation of risk versus reward on a pair of scales
Investing Articles

A 6%+ yield but down 24%! Time for me to buy more of this hidden FTSE 250 gem?

After a rapid share price fall, this FTSE 250 stock's dividend yield has risen, leaving me wondering whether I should…

Read more »

View of Lake District. English countryside with fields in the foreground and a lake and hills behind.
Investing Articles

The United Utilities share price is recovering after mixed earnings report and sewage spill

Is a mild increase in revenue and slightly boosted dividend enough to save the United Utilities share price in light…

Read more »

Dividend Shares

Here’s why the Legal & General share price looks super attractive to me

Jon Smith flags up an important characteristic about the Legal & General share price that makes it appealing to him…

Read more »