Share your opinion and earn yourself a free Motley Fool premium report!

We are looking for Fools to join a 75 minute online independent market research forum on 15th / 16th December.

To find out more and express your interest please click here

I’d aim to turn a £20,000 ISA into £28,133 of passive income

Investing can certainly be daunting for those with no experience. So here’s how I’d invest £20,000 and aim for a substantial passive income.

| 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.

Young black colleagues high-fiving each other at work

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.

I’ve a little bit of money in an HSBC active savings account — the type you can withdraw from immediately — and, for the first time in 12 years, I’m actually getting some noteworthy interest. However, this isn’t going to last for long. With a couple over years, interest on this account will be close to zero. It’s not a long-term passive income option.

So what’s the alternative? Well, personally, I have the majority of my wealth in a Stocks and Shares ISA. Through this tax-efficient vehicle — I pay no tax on capital gains or dividends earned within the wrapper — I invest in stocks with the long-term objective of earning a passive income.

Time + contributions = growth

The reality is, that even with £20,000 invested in stocks, I’m not going to be able to generate a particularly large passive income. Taking 8% as the very best dividend yield achievable, I’d only be able to earn around £1,600 a year.

This is where time and regular contributions are phenomenally important. When we invest, and then reinvest our returns, we allow our money to grow. And the longer we leave it, the faster it grows because we start earning interest on our interest. As highlighted by the below, interest compounds.

Created at thecalculatorsite.com

Next, I’ve got to think about making regular contributions. This is another way to get my portfolio growing, even if it’s just £100 a month. Collectively, over time, reinvesting and making monthly contributions will see my portfolio grow significantly.

In fact, keeping the annual return/dividend at 8%, after 30 years, including a £100 monthly contribution, I’d have £390k! That could generate £28,133 of passive income in the 30th year.

The growth phase

I’ve used 8% as an example throughout because it happens to be a strong return for a novice investor. But it’s also, as mentioned, pretty much the best dividend yield I could receive right now when investing in a handful of stocks.

Personally, I’m looking to grow my portfolio faster than 8% annually. This involves investing in a diverse portfolio of stocks, many of which have great growth prospects and excellent metrics. In turn, that means I should have a large pot for generating passive income in the future.

One of these companies is Super Micro Computer (NASDAQ:SMCI). I’ve jumped in and out of this stock, but up 748% over the past 12 months — yes 748% — I think it’s still got further to go.

Super Micro is one of the enablers of the artificial intelligence (AI) revolution, providing high-performance, application-optimised server and storage solutions. These solutions, enhanced by proprietary-cooling technology, allow powerful semiconductors to work at peak efficiency.

Of course, there’s a risk other companies will enter the market. But, for the foreseeable future, Super Micro has the market cornered, while benefitting from key partnerships with Nvidia and AMD.

Looking at the metrics, the stock still looks undervalued. It has a price-to-earnings-to-growth ratio of 0.86. Anything under one infers a company is undervalued. And remember, this stock keeps on beating expectations.

Not every pick will be a winner, but the big winners certainly help my aggregated performance. In the last few months I’ve been fortunate with Super Micro, Nvidia, Rolls-Royce, GigaCloud, Powell Industries, Meta, and Celestica all up more than 30%.

Randi Zuckerberg, a former director of market development and spokeswoman for Facebook and sister to Meta Platforms CEO Mark Zuckerberg, is a member of The Motley Fool's board of directors. James Fox has positions in Celestica Inc, GigaCloud Technologies, Powell Industires, Nvidia, Meta Platforms and Rolls-Royce Plc. The Motley Fool UK has recommended Meta Platforms, Nvidia, and Rolls-Royce 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

Businessman hand flipping wooden block cube from 2024 to 2025 on coins
Investing Articles

After huge gains for S&P 500 tech stocks in 2025, here are 4 moves I’m making to protect my ISA and SIPP

Gains from S&P tech stocks have boosted Edward Sheldon’s retirement accounts this year. Here’s what he’s doing now to reduce…

Read more »

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

With a 3.2% yield, has the FTSE 100 become a wasteland for passive income investors?

With dividend yields where they are at the moment, should passive income investors take a look at the bond market…

Read more »

Smart young brown businesswoman working from home on a laptop
Investing Articles

Should I add this dynamic FTSE 250 newcomer to my Stocks and Shares ISA?

At first sight, a UK bank that’s joining the FTSE 250 isn’t anything to get excited by. But beneath the…

Read more »

Investing Articles

£10,000 invested in BT shares 3 months ago is now worth

BT shares have been volatile lately and Harvey Jones is wondering whether now is a good time to buy the…

Read more »

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

After a 66% fall, this under-the-radar growth stock looks like brilliant value to me

Undervalued growth stocks can be outstanding investments. And Stephen Wright thinks he has one in a company analysts seem to…

Read more »

Content white businesswoman being congratulated by colleagues at her retirement party
Investing Articles

Don’t ‘save’ for retirement! Invest in dirt cheap UK shares to aim for a better lifestyle

Investing in high-quality and undervalued UK shares could deliver far better results when building wealth for retirement. Here's how.

Read more »

Black woman using smartphone at home, watching stock charts.
Investing Articles

1 growth and 1 income stock to kickstart a passive income stream

Diversification is key to achieving sustainable passive income. Mark Hartley details two broadly different stocks for beginners.

Read more »

ISA coins
Investing Articles

How to aim for a £12k second income starting with a 20k ISA

With inflation and taxes on the rise, having a tax-free second income is now more important than ever. Zaven Boyrazian…

Read more »