How I’d invest £400 a month in UK shares to target a £21,473 annual passive income!

Royston Wild explains why he thinks regularly investing in UK shares could help him build a substantial passive income in retirement.

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.

Storytelling image of a multiethnic senior couple in love - Elderly married couple dating outdoors, love emotions and feelings

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.

Investing in the stock market can be a wild ride at times. But make no mistake, owning UK shares can build significant wealth for investors who take a long-term view.

According to investment firm Vanguard, the average yearly return from British stocks sits at 9.18%, unadjusted for inflation. Even adjusted for inflation it sits at an impressive 5.35%.

Both figures beat the returns from savings accounts and bonds by a comfortable margin, as the table shows.

Total returns between 1901 and 2022

Asset classNominal returnReal (inflation adjusted) return
Cash*4.55%0.87%
UK bonds5.14%1.44%
UK shares9.18%5.35%

Past returns are no guarantee of the future, of course. But the performance of UK shares shows I could potentially unlock a substantial passive income stream without having to break the bank.

Let’s say I have £400 available to invest each month. That could be enough to help me establish a second income of £21,473 for the rest of my life. Here’s how.

A FTSE 100 strategy

Investing in FTSE 100 shares could be the strategy to help me achieve this goal. The UK’s leading index is packed with market-leading, multinational companies with great growth records. On top of this, Footsie stocks are known for providing consistent and generous dividends.

Between its inception in 1984 and 2022, the FTSE 100 delivered a staggering return of 1,514.92%. That combines both price gains and dividends, and works out at an annual average of 7.48%, according to IG Group.

Let’s assume the FTSE keeps on delivering this average return for the next 30 years. What would this transform a regular £400 monthly investment into?

 FTSE 100
5 years£28,995.78
10 years£71,093.32
20 years£220,948.85
30 years£536,824.97

As the table shows, investing in blue-chip shares would build me a huge nest egg worth £536,824.97. That’s thanks to the miracle of compounding, in which I would reinvest dividends over those three decades to buy even more shares and receive even more dividends.

The graphic below shows the powerful impact of this mathematical miracle on building long-term wealth.

Graph showing the impact of compounding over a 30-year timeline.
Created with thecalculatorsite.com.

Now let’s transfer that into a passive income by using the 4% drawdown rule. This would allow me to draw a retirement income for 30 years before the well eventually runs dry.

Using this withdrawal strategy would provide me with a healthy annual passive income of £21,473.

Reward vs risk

Of course the prospect of making a five-figure income while doing nothing is very enticing. But it’s important to remember that share investing isn’t a risk-free endeavour and positive returns are never guaranteed.

A prolonged period of high inflation and elevated interest rates, for instance, could harm the profits I make. So could economic slowdowns in major economies like the US and China. Finally, rising geopolitical tensions may also hurt my returns if trade frictions flare up and conflicts emerge.

However, I think these risks are worth taking. As I’ve demonstrated, investing in UK shares can create life-changing wealth and hasten the path towards financial independence. It’s why I plan to continue building my own stocks portfolio in 2024.

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.

Royston Wild has no position in any of the shares mentioned. 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

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

Just released: our top 3 small-cap stocks to consider buying in October [PREMIUM PICKS]

Small-cap shares tend to be more volatile than larger companies, so we suggest investors should look to build up a…

Read more »

Investing Articles

How I’d use an empty Stocks and Shares ISA to aim for a £1,000 monthly passive income

Here's how using a Stocks and Shares ISA really could help those of us who plan to invest for an…

Read more »

Investing Articles

This FTSE stock is up 20% and set for its best day ever! Time to buy?

This Fool takes a look at the half-year results from Burberry (LON:BRBY) to see if the struggling FTSE stock might…

Read more »

Investing Articles

This latest FTSE 100 dip could be an unmissable opportunity to pick up cut-price stocks

The FTSE 100 has pulled back with the government’s policy choices creating some negative sentiment. But this gives us a…

Read more »

A young woman sitting on a couch looking at a book in a quiet library space.
Investing Articles

As the WH Smith share price falls 4% on annual results, is it still worth considering?

WH Smith took a hit after this morning’s results left shareholders unimpressed. With the share price down 4%, Mark Hartley…

Read more »

Investing Articles

The Aviva share price just jumped 4.5% but still yields 7.02%! Time to buy?

A positive set of results has put fresh life into the Aviva share price. Harvey Jones says it offers bags…

Read more »

Investing Articles

Can a €500m buyback kickstart the Vodafone share price?

The Vodafone share price has been a loser for investors in recent years, and the dividend has been cut. We…

Read more »

Frustrated young white male looking disconsolate while sat on his sofa holding a beer
Growth Shares

3 mistakes I now avoid when choosing which growth stocks to buy

Jon Smith runs through some of the lessons he's learnt the hard way over the years about what to look…

Read more »