Turning an empty ISA into a £117,784 annual second income!

UK investors can use the tax-efficient ISA wrapper to generate a tax-free second income. Here, Dr James Fox explains how it’s done.

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.

Close-up of British bank notes

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.

We’d all love a second income wouldn’t we? A second income can be generated in many ways. I could take up part time work or look to earn a rental income. But, from experience, investing in stocks and shares is the best way to do it.

Starting an ISA

Building up a big pot takes time, there are risks, and goals might not be achieved. But buying shares is a proven route for building wealth.

If we’re starting with nothing, it’s probably safe to assume we haven’t opened a Stocks and Shares ISA already. Opening an ISA is easy. It’s essentially just a wrapper, and it can be opened through most major investment platforms such as Hargreaves Lansdown.

One of the key advantages of Stocks and Shares ISAs is their tax efficiency. Any income or capital gains generated within them are exempt from income tax and capital gains tax, allowing investors to maximise their returns.

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.

Starting with nothing

When starting with nothing, I need to commit to regular savings. Without starting capital, this is the only way to reliably grow my portfolio in the early years.

Regular savings allow investors to establish a solid financial foundation. By consistently setting aside money, even small amounts, we can begin accumulating wealth and develop good saving habits. The latter is a core component of investing.

These days, due to the arrival of low-fee or no-fee investment platforms, and the creation of fractional shares — a development that allows investors to own just a part of a share rather than all of it — it’s easy to invest with a small amount of money.

I could start with as little as £20 a week. And, over time, I could build a sizeable portfolio which, in turn, could generate passive income. But today I’m going to use the following example: my wife and I both commit to saving £150 a month — so £300 a month as a couple.

The power of time!

Once I’ve worked out what I can afford, I’ve then got to realise that I’m not going to be able to achieve my goals over night. Instead, my strategy will be based around harnessing the power of compound returns. This is the practice whereby I earn interest on my interest by reinvesting my dividends (or returns from share sales) back into my portfolio.

Compounding is often likened to a snowball because, similar to a snowball rolling down a hill, it starts small but grows larger and gains momentum as it progresses. The larger the snowball gets, the more snow it collects and the faster it grows.

Similarly, a compound returns strategy generates growth not only on the original investment but also on the accumulated earnings or returns, amplifying the growth rate.

And the larger my portfolio, the larger the second income I can generate.

So here’s how large our second income could be by investing just £300 a month using a variety of returns. It’s naturally worth highlighting that if I chose my stocks poorly, the value of my investments could go down as well as up. That’s why it’s so important to have the right research. A seasoned investor may aim for low double-digit returns.

6% returns8% returns10% returns12% returns
5 years£1,101.66£1,538.08£2,014.37£2,534.12
10 years£2,741.83£4,054.95£5,637.38£7,543.83
20 years£7,938.31£13,391.23£21,405.97£33,178.96
30 years£17,392.77£34,114.43£64,092.20£117,784.80

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.

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

Light trails from traffic moving down The Mound in central Edinburgh, Scotland during December
Investing Articles

FTSE 100 shares: bargain hunting to get richer!

After hitting a new high this year, might the FSTE 100 still offer bargain shares to buy? Our writer thinks…

Read more »

Investing Articles

How to try and turn a £50K SIPP into a £250K retirement fund

Christopher Ruane explains how a long-term approach and careful share selection could potentially help an investor quintuple the value of…

Read more »

Smiling white woman holding iPhone with Airpods in ear
Investing Articles

My £3 a day passive income plan for 2025

Christopher Ruane walks through his plan for next year and beyond of squirreling away and investing a few pounds a…

Read more »

Concept of two young professional men looking at a screen in a technological data centre
Investing Articles

Can the FTSE 250’s Raspberry Pi boost my portfolio over the next decade?

This British technology stock in the FTSE 250 has exploded onto the London stock market and right now its future…

Read more »

Investing Articles

Does acquiring Direct Line make Aviva shares a buy?

A big acquisition should give Aviva greater scale and profitability, increasing the value of its shares. But is it an…

Read more »

Investing Articles

After a 25% decline in 2024, this FTSE 250 stock is top of my buy list for the New Year

Stephen Wright’s top investment idea is a FTSE 250 stock that’s down 25% this year in an industry that’s under…

Read more »

The words "what's your plan for retirement" written on chalkboard on pavement somewhere in London
Retirement Articles

After a 20% gain in 2024, here’s how I’ll be investing my Stocks and Shares ISA and SIPP in 2025

Edward Sheldon is saving for retirement in a Stocks and Shares ISA and pension. Here’s how he’ll be investing in…

Read more »

Investing Articles

2 S&P 500 funds to consider for huge profits in 2025!

Are you optimistic about the S&P 500's prospects in the New Year? These quality exchange-traded funds (ETFs) could be worth…

Read more »