£500 or £5,000? Here’s how much passive income a £20k ISA could earn each year!

Our writer explains some principles that help determine how much passive income a £20k ISA might provide each year, in different scenarios.

| 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.

Close-up of British bank notes

Image source: Getty Images

Some passive income ideas are simpler than others – a lot simpler.

For example, my own approach is buying blue-chip shares in proven business I hope can pay me regular dividends for years or even decades to come without me lifting a finger.

I like the fact that I benefit financially from large-scale businesses that have already proven they can make money.

But what if I earn some passive income only then to have to hand a big chunk of it back to the taxman? To avoid that, I use a Stocks and Shares ISA.

Even in an ISA, though, fees and costs can eat into dividend income. So I think it makes sense for each investor to make their own choice about what ISA might best suit their individual situation.

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.

Determining the size of dividend income

There are three factors at play when determining how much passive income someone can expect to receive from shares they own.

First is how much someone invests. In this example, that is £20k.

Secondly comes the average dividend yield earned on a portfolio. That is the annual dividends as a percentage of what is invested. So, for example, £500 per year equates to a yield of 2.5% on £20k. That strikes me as easily achievable and is in fact well below the average yield of FTSE 100 shares right now.

By contrast, £5,000 would mean a yield of 25%. Not only is that far higher than any FTSE 100 share offers, it is so high I see it as a red flag. If a share offers a 25% yield (and some occasionally do), it often suggests that the market is expecting a dividend cut.

But there is a third factor at play – how long an investor holds the shares.

If an investor reinvests dividends initially (a simple but powerful financial technique known as compounding), the long-term yield could be higher than the current one.

For example, compounding a £20k ISA at 7% annually, after 19 years it ought to be producing over £5,000 per year in passive income.

Yes, that is a long time to wait. But this is a serious long-term investing approach, not some ridiculous get rich quick scheme.

Finding shares to buy

The good news is that I think today’s market offers opportunities realistically to target a 7% average annual yield while sticking to blue-chip FTSE 100 shares.

Investing in multiple different shares reduces the risk if one disappoints, for example, by reducing its dividend.

One dividend share I think investors should consider is M&G (LSE: MNG).

M&G’s yield stands at 10%. It aims to maintain or grow its dividend each year. That is not guaranteed to happen in practice, but the asset manager has increased its dividend per share annually in recent years.

With a large target market, millions of clients spread across multiple markets, a strong brand, and deep industry experience, I think M&G could well keep delivering the goods.

One risk is clients pulling out more funds than they put in. That happened in the core business in the first half of last year and is a risk I am keeping an eye on.

Meanwhile, as an M&G shareholder myself, I remain attracted by the passive income prospects.

C Ruane has positions in M&g Plc. The Motley Fool UK has recommended M&g 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 Dividend Shares

Stack of one pound coins falling over
Investing Articles

Want to turn your ISA into a passive income machine? These 3 steps help

Christopher Ruane looks at a trio of factors he reckons could help an investor as they aim to earn passive…

Read more »

Businesswoman calculating finances in an office
Investing Articles

Here’s the dividend forecast for Lloyds shares through to 2028

Can dividend forecasts tell investors much about the outlook for banking shares? Stephen Wright sets out what investors really need…

Read more »

Three generation family are playing football together in a field. There are two boys, their father and their grandfather.
Investing Articles

State Pension worries? I’m building passive income in this volatile market

With State Pension worries growing, Andrew Mackie is building his own passive income streams — using volatile markets to create…

Read more »

Young Caucasian girl showing and pointing up with fingers number three against yellow background
Investing Articles

Could £15,000 in these 3 FTSE 100 stocks really deliver £1,230 of passive income?

With some of the UK’s largest dividend payers seeing their share prices plunge, there are some incredible passive income opportunities…

Read more »

Three generation family are playing football together in a field. There are two boys, their father and their grandfather.
Investing Articles

Is this stock market correction an unmissable passive income opportunity?

As share prices dip, dividend yields climb. Harvey Jones says this is an exciting time to target passive income stocks,…

Read more »

Two business people sitting at cafe working on new project using laptop. Young businesswoman taking notes and businessman working on laptop computer.
Investing Articles

Want to earn passive income from the stock market? Here are 3 ways to identify quality dividend stocks

Mark Hartley outlines the three most important factors to look for in dividend shares when aiming to earn passive income…

Read more »

Investing Articles

Use it or lose it: why I’m filling my Stocks and Shares ISA before the 5 April funding deadline

With the Stocks and Shares ISA deadline looming, I’m locking in high yield, reinvesting tax-free dividends, and letting compounding build…

Read more »

Investing Articles

Should investors snap up Lloyds shares before they go ex-dividend on 9 April?

Lloyds' shares have given investors growth and income in spades, but can't escape today's geopolitical issues. Should investors consider them…

Read more »