How to turn a £20k ISA into a £343 monthly second income

The key to turning cash today into a meaningful second income is compounding it at a high rate. Stephen Wright looks at the best way of doing this.

| 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.

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.

With rising interest rates crushing the buy-to-let market, investors are looking elsewhere for a second income. And I think the stock market is a good place to look at the moment.

By investing using a Stocks and Shares ISA, I think £20,000 into an investment that can pay £4,116 per year – or £343 per month — is a sensible ambition. Here’s how.

The maths

A 5% compound annual return on £20,000 results in an investment that earns £4,116 per year after 30 years. I think that’s realistic, given the historic returns of the FTSE 100, but it’s a long time to wait.

Earning a higher average annual return could speed the process up, though. For example, earning a compounded return of 6% per year results in a portfolio generating £3,324 per year after 23 years.

With an 8% average annual return, the time to £343 per month halves compared to 5%. Compounded at 8% per year, £20,000 turns into an investment yielding £4,351 per month after 14 years.

Nothing is guaranteed when it comes to investing. But it’s worth noting that the difference between earning 5% and earning 8% can be quite significant when it comes to getting to £343 per month.

The strategy

Given this, I think it’s important to aim for the best overall return. And this involves looking for the most attractive opportunities across the board, rather than concentrating on growth or dividends. 

Obviously, the eventual ambition is a second income. But I don’t think that means I need to focus exclusively on shares in companies that distribute their earnings as dividends. 

There are two reasons for this. One is the best opportunities might not be in dividend stocks – and the cost of settling for a lower return in terms of time to get to £343 per year could be quite high.

Another is that I don’t need a business to distribute cash to earn a second income. If the companies I own shares in grow and retain earnings, I can always sell part of my stake to realise the increase. 

A stock to consider

In some ways, having an unlimited universe of stocks to choose from makes it harder. But one that I think looks attractive at the moment is Diageo (LSE:DGE).

Over the last decade, revenues have grown at around 4% per year and earnings per share at 5%. And this has happened while the company has returned most of its free cash to investors as dividends.

The growth isn’t risk-free, though. The company has recently proved that it isn’t as recession-resistant as some investors might have imagined as weak consumer spending has been weighing on demand. 

This has been an issue for companies across the board, though. And I think Diageo’s scale gives it an advantage over smaller rivals that should put it in a good position for the long term.

Opportunistic investing

Whether it’s growth or passive income, investing well comes down to seizing exceptional opportunities. That means buying shares in strong businesses when prices are unusually cheap.

Right now, I think Diageo fits the bill. That’s why I own the stock and why I plan to carry on buying it while the price stays near its current levels.

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.

Stephen Wright 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

Investing Articles

£15,000 in cash? I’d pick growth stocks like these for life-changing passive income

Millions of us invest for passive income. Here, Dr James Fox explains his recipe for success by focusing on high-potential…

Read more »

Passive income text with pin graph chart on business table
Investing Articles

Here’s my plan for long-term passive income

On the lookout for passive income stocks to buy, Stephen Wright is turning to one of Warren Buffett’s most famous…

Read more »

artificial intelligence investing algorithms
Growth Shares

Are British stock market investors missing out on the tech revolution?

British stock market investors continue to pile into ‘old-economy’ stocks. Is this a mistake in today’s increasingly digital world?

Read more »

Fireworks display in the shape of willow at Newcastle, Co. Down , Northern Ireland at Halloween.
Investing Articles

My 2 best US growth stocks to buy in November

I’ve just bought two US growth companies on my best stocks to buy now list, and I think they’re still…

Read more »

Investing Articles

£2k in savings? Here’s how I’d invest that to target a passive income of £4,629 a year

Harvey Jones examines how investing a modest sum like £2,000 and leaving it to grow for years can generate an…

Read more »

Renewable energies concept collage
Investing Articles

Down 20%! A sinking dividend stock to buy for passive income?

This dividend stock is spending £50m buying back its own shares while they trade at a discount and also planning…

Read more »

Investing Articles

I’d buy 32,128 shares of this UK dividend stock for £200 a month in passive income

Insider buying and an 8.1% dividend yield suggest this FTSE 250 stock could be a good pick for passive income,…

Read more »

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

As stock markets surge, here’s what Warren Buffett’s doing

Warren Buffett has been selling his largest investments! Should investors follow in his footsteps, or is there something else going…

Read more »