We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

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.

£12,500 of savings? Here’s how I’d aim for £583 as a monthly second income!

Many of us invest for a second income. We might not need it today, but we’re building for the future. Dr James Fox explains his strategy.

Smiling white woman holding iPhone with Airpods in ear

Image source: Getty Images

You’re reading a free article with opinions that may differ from The Twelfth Magpie’s Premium Investing Services. Become a member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn more, and get a free 'Best Buy Now' stock!.

There are several ways to earn a second income. But there are very few ways to earn a second income truly passively. For me, the best way to earn a real passive second income is investing via the stock market.

So, here’s how I’d look to use £12,500 of savings and turn that into a monthly second income worth £583 a month.

Should you buy Rolls Royce shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

My strategy

Here’s what I’d do.

  1. Brokerage account set-up: Open a brokerage account to facilitate buying and selling stocks. I chose Hargreaves Lansdown because of its ease-of-use and customer service, but there are cheaper brokerage platforms out there. Electing for a Stocks and Shares ISA would mean my second income would be tax-free.
  2. Defined objectives: It helps to the have an objective in mind and work towards it. If I’m aiming for £583 a month as a second income, I can plan my investments accordingly.
  3. Research: Conduct thorough research on potential stocks, considering factors like financial health, growth prospects, and dividends, while diversifying my holdings for a balanced and resilient portfolio.
  4. Review portfolio: It’s important to periodically assess my portfolio’s performance, making adjustments based on market trends and economic conditions.
  5. Reinvest for compounding: Reinvesting my returns compounds them over time, accelerating portfolio growth.

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.

Compounding

Compounding is one of the most important investing concepts, but it’s often overlooked by novice investors. Essentially it happens when I reinvest my returns year after year.

If I own dividend-paying stocks, this means reinvesting my dividends. However, I can also use companies that reinvest their profits and don’t pay dividends (or only pay small ones), like Amazon or Nvidia, and hope to see the share price grow accordingly.

It might not sound like a winning strategy, but it is. It means I’ll start earning interest on my interest. Here’s how that looks in chart form using an 8% annualised return. We can see accrued interest growing exponentially. That’s the impact of compound returns.

Created at thecalculatorsite.com

At the end of this 25-year period, I’d have just short of £100,000. By investing is dividend-yielding companies like Legal & General, I could easily generate around £7,000 a year or £583 a month.

Building a portfolio

In the above example, I’ve used an 8% annualised yield. That means, on average, my portfolio would be growing at 8% every year. However, if I invest poorly, the value of my investments could fall.

There are two things to remember here. Losses can compound, and if I lose 50%, I’ve got to gain 100% to get back to where I was. This is why Warren Buffett says the first rule of investing is “don’t lose money”.

That’s why it’s important to make sensible investment decisions. These days there’s a host of resources that can help us understand complex financial data, uncover investment opportunities, and make informed investment decisions.

Personally, I like to focus on buying undervalued stocks, and increasingly those with positive momentum. This includes companies like AppLovin, CRISPR Therapeutics, IAG, Meta Platforms and Rolls-Royce — all of which are either in my portfolio, or I’m looking to add them.

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 AppLovin Corporation, CRISPR Therapeutics and Meta Platforms. The Motley Fool UK has recommended CRISPR Therapeutics and Meta Platforms. 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

Overjoyed exited middle aged married couple giving high five, finishing doing domestic paperwork together at home. Euphoric happy older mature spouses celebrating successful investment or purchase.
Investing Articles

This beaten-down FTSE 100 dividend share just jumped 11% in a week but still yields almost 5%

Harvey Jones has been highlighting this dividend share opportunity for weeks and suddenly it's showing signs of life. Can the…

Read more »

Investing Articles

Down 53% since May, is this SpaceX-backed UK stock now in the bargain bin?

The Filtronic (LSE:FTC) share price has come crashing back down to earth in recent weeks. Has the selling gone too…

Read more »

Close-up as a woman counts out modern British banknotes.
Investing Articles

3,566 shares in this FTSE 100 stalwart earns a £1,443 second income

Stephen Wright sees Unilever's battered share price as an attractive option for investors looking for a second income to consider.

Read more »

Bus waiting in front of the London Stock Exchange on a sunny day.
Investing Articles

3 stocks I’m looking to buy in July

Stephen Wright’s stocks to buy list for July includes a specialist chemicals recovery play, a quiet infrastructure compounder, and an…

Read more »

ISA Individual Savings Account
Investing Articles

How do the government’s latest changes affect your Stocks and Shares ISA?

Stephen Wright explains what the new anti-circumvention rules mean for investors with uninvested cash in their Stocks and Shares ISAs.

Read more »

Businessman hand stacking up arrow on wooden block cubes
Investing Articles

Here’s how much I think Rolls-Royce shares will be worth by the end of 2027

Ken Hall is considering buying Rolls-Royce shares. But just how much further could the stock climb by the end of…

Read more »

Young woman holding up three fingers
Investing Articles

Looking for cheap stocks to buy under £1? Here are 3 quality UK businesses to consider

Always on the hunt for cheap stocks to buy, our writer identifies three appealing UK candidates with strong financials and…

Read more »

Rolls-Royce Hydrogen Test Rig at Loughborough University
Investing Articles

Could small modular reactors take Rolls-Royce shares to the next level?

Rolls-Royce Holdings is investing heavily in the development of mini nuclear power stations. But what could this mean for the…

Read more »