How I’d try and turn a £20k ISA into a second income worth £1,200 right now!

Zaven Boyrazian explains how to transform a £20k ISA and start earning a four-figure second income stream to help in this challenging economic environment.

| 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.

British coins and bank notes scattered on a surface

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.

Investing to earn a second income is arguably one of the most popular financial objectives shared by investors. After all, who doesn’t love the idea of making money without having to work for it. And when leveraging the power of a Stocks and Shares ISA, even taxes are eliminated from the equation.

However, investing a £20k ISA can be a bit daunting. And if executed poorly, it can actually end up doing more harm than good. After all, investing in stocks isn’t risk-free. So let’s explore what to be on the lookout for and how to start earning an extra £1,200 right now.

The risks surrounding dividends

When a company reaches maturity, growth tends to eventually slow. There are only so many projects a company can invest in, and not all can deliver blockbuster returns. For example, a new product that generates an extra £5m in sales each year could be tremendous news for a small-cap. But for a multi-billion pound industry titan, it’s fairly meaningless.

As such, large businesses often choose to return the money they can’t find a good use for back to shareholders through dividends. And capitalising on these payout policies is how investors can earn a second income in the stock market.

However, this is where risk enters the picture. Even if a company pays a high dividend right now, there’s no guarantee it will continue to do so. Why? Because dividends are ultimately funded by money that a business doesn’t need. And when times are tough, these funds can quickly end up in short supply.

That’s why so many income stocks had to hit pause on dividends during the pandemic. And a portfolio of companies with weak balance sheets and lacklustre outlooks isn’t likely to generate a sustainable passive income.

Earning £1,200

On average, the FTSE 100 has typically offered a dividend yield of around 4%. Right now, the payout is closer to 3.6%, due to the rally we’ve enjoyed since the start of 2024. However, even with this recent boost, there are still plenty of companies offering considerably more.

There are currently 19 groups supplying a yield of at least 5%. And expanding the sandbox to include the FTSE 250 increases this to 70 companies. By snapping up the right blend, building an income portfolio that yields 6% would instantly generate a £ 1,200 second income when starting with a £20k ISA.

Sadly, not all of these enterprises are going to be sound investments. Take Diversified Energy Company (LSE:DEC) as an example. Until recently, the oil & gas producer offered one of the highest yields on the London Stock Exchange, at 16.3%. Yet, investors who were lured in by the promise of gargantuan income are likely kicking themselves today as the firm has since announced a dividend cut.

With the largest portfolio of oil & gas wells in the US, Diversified’s a major player within the energy sector. But, environmental questions arising about how it’s able to properly manage all 90,000 wells, paired with falling gas prices, has started creating cracks in the balance sheet.

All of this is to say that when exploring high-yield income stocks, investors need to pay careful attention to the underlying business. Not just from a financial perspective, but an operational one as well.

Zaven Boyrazian 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

Middle aged businesswoman using laptop while working from home
Investing For Beginners

I think the best days for Lloyds’ share price are over. Here’s why

Jon Smith explains why Lloyds' share price could come under increasing pressure over the coming year, with factors including a…

Read more »

A graph made of neon tubes in a room
Investing Articles

£5,000 invested in the FTSE 100 at the start of 2025 is now worth…

Looking to invest in the FTSE 100? Royston Wild believes buying individual shares could be the best way to target…

Read more »

Thoughtful man using his phone while riding on a train and looking through the window
Investing Articles

Can the BAE share price do it again in 2026?

The BAE share price has been in good form in 2025. But Paul Summers says a high valuation might be…

Read more »

Investing Articles

Can Rolls-Royce, Babcock, and BAE Systems shares do it all over again in 2026?

Harvey Jones examines whether BAE Systems and other defence-focused FTSE 100 stocks can continue to shoot the lights out in…

Read more »

Investing Articles

7 UK dividend shares yielding over 7% that could thrive if rates fall in 2026

Mark Hartley weighs up the investment benefits of interest rate changes and how they could boost the potential of seven…

Read more »

Investing Articles

These 3 things could make a Stocks and Shares ISA a no-brainer in 2026

The government and the FCA are doing their bit to try to steer investors towards a Stocks and Shares ISA…

Read more »

Businessman using pen drawing line for increasing arrow from 2024 to 2025
Investing Articles

Revealed! The 10 best-performing FTSE 100 shares in 2025

It's been a year of golden gains for the FTSE 100 index, spearheaded by these 10 powerhouse stocks. But can…

Read more »

Snowing on Jubilee Gardens in London at dusk
Investing Articles

Is it time to consider gobbling up these 3 FTSE 100 Christmas turkeys?

Our writer looks at the pros and cons of buying three of the FTSE 100’s (INDEXFTSE:UKX) worst performers over the…

Read more »