Turning a £20k ISA into an annual second income of £30k? It’s possible!

This Fool UK writer is exploring how to harness the power of dividend shares and compound returns to build a lucrative second income.

| 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.

A handsome mature bald bearded black man in a sunglasses and a fashionable blue or teal costume with a tie is standing in front of a wall made of striped wooden timbers and fastening a suit button

Image source: Getty Images

The new tax year is upon and it’s time to start thinking about new ISA possibilities. With a Stocks and Shares ISA, it’s possible to invest up to £20k a year tax-free and begin the journey towards a lucrative second income.

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.

How would someone go about doing that?

Well, investing the maximum ISA allowance into stocks that pay reliable dividends is a good start. Reinvesting those dividends to maximise returns is the next step. Building the investment up with regular contributions is the final clincher that hopefully secures the prize.

But there are so many dividend stocks to choose from – which are reliable and which to avoid?

Choosing a great dividend stock

Selecting the right stocks can be a minefield because there’s a lot of factors involved in the selection process. A high dividend yield is a good place to start but it must be backed up by a solid track record of payments. 

Let’s consider Aviva (LSE:AV.)

This long-running and reliable British insurance company has been paying a dividend regularly for over 10 years. Not only that, the dividend has been steadily increasing – and not in an unsustainable way that makes it likely to get cut. Aviva has been careful to offer investors a realistic dividend that won’t put pressure on the company’s profits if times get tough.

Only during the pandemic when almost every industry suffered was Aviva forced to cut a single payment. Payments quickly resumed in the second half of 2020 and have been consistent since. At 7.2%, Aviva boasts a dividend yield that’s higher than most and is forecast to reach 9% in the next three years. 

On the downside, it currently has a slightly high payout ratio of 89%. This means it’s paying out a very large portion of earnings as dividends. Should earnings decline, it may have to choose between reducing the dividend or digging into cash reserves to cover it. For now, the company’s earnings growth is positive and predicted to continue at a rate of 7.8% per year.

However, like most value stocks, Aviva doesn’t experience exceptional share price growth. Over the past five years, the share price has only increased by 9.3%. That’s pretty tame when compared to top growth stocks like BAE Systems and AstraZeneca. This is why it’s important to diversify an ISA portfolio with a few growth stocks even if they have lower dividend yields. 

Where’s that £30k second income?

So what about the aforementioned £30k income? It’s right there, nestling in a good dividend portfolio with regular monthly investments and the magic of compound returns

For example, a decent portfolio can be expected to return on average 7% in dividends with an average annual price increase of 5%. These figures aren’t guaranteed, of course, and can fall as well as rise.

But let’s assume the ISA is invested with the full £20k in year one and receives regular monthly contributions of £200 (or £2,400 a year). If the averages remain consistent, after 10 years it would have grown to £105,600 – paying an annual dividend of £6,600. 

After 20 years the dividend payments would be £24,000 and after 22 years? That’s right, a full £30k a year in dividend payments from a pot that has grown to almost £500k!

Mark Hartley has positions in AstraZeneca Plc, Aviva Plc, and BAE Systems. The Motley Fool UK has recommended AstraZeneca Plc and BAE Systems. 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

£20,000 invested in a Stocks and Shares ISA over the last year is now worth…

With tax season coming to an end, investors will soon have a fresh £20k allowance for their Stocks and Shares…

Read more »

British flag, Big Ben, Houses of Parliament and British flag composition
Investing Articles

Back above 10,000! Is the FTSE 100 index on track again?

The FTSE 100 index has been yo-yoing up and down with the latest news headlines around the oil crisis. Where…

Read more »

Finger clicking a button marked 'Buy' on a keyboard
Investing Articles

Stock market correction: Is there still time to buy UK shares cheap?

Long-term investors can do well to stay calm through stock market corrections, and even crashes, and pick up shares when…

Read more »

Warm summer evening outside waterfront pubs and restaurants at the popular seaside resort town of Weymouth, Dorset.
Investing Articles

2 FTSE 100 blue-chips to consider for a new £20k Stocks and Shares ISA

Ben McPoland highlights a pair of high-quality FTSE 100 stocks that have strong momentum on their side yet are trading…

Read more »

Young Caucasian woman with pink her studying from her laptop screen
Investing Articles

Are depressed Lloyds shares just too tempting to miss now?

Lloyds shares are coming under renewed pressure as conflict in the Middle East threatens the fragile global economic recovery.

Read more »

Female student sitting at the steps and using laptop
Investing Articles

7 FTSE 100 shares that look cheap after the 2026 stock market correction

Falling stock markets often present bargain opportunities. Let's take a look at some of the cheapest FTSE 100 shares at…

Read more »

piggy bank, searching with binoculars
US Stock

Up 59% this year, this S&P 500 stock is smashing the index!

Jon Smith points out a stock from the S&P 500 that's flying right now as part of a transformation plan,…

Read more »

Businessman hand stacking money coins with virtual percentage icons
Investing Articles

Stock market correction: a rare second income opportunity?

Falling share prices are pushing dividend yields higher. That makes it a good time for investors looking for chances to…

Read more »