We have some exciting news to share! The Motley Fool UK has now become 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. We’ll be introducing a new name and brand over the coming weeks — we're very excited to share it with you and embark on this new chapter together!

Turning an empty ISA into £98,154 of extra income every year!

We’d all benefit from some extra income here and there. But what if we could generate life-changing passive income from an empty portfolio?

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.

Close-up of British bank notes

Image source: Getty Images

I’m not sure of anyone who’d say ‘no’ to some extra income. Whether we’re struggling to make ends meet or doing well, there’s always something we want but just can’t afford right now.

Of course, there are plenty of ways to earn a second income. I could take up part-time work, or I could invest in a buy-to-let property. However, from experience, the easiest and often most lucrative way is investing in stocks and shares that pay a dividend.

Here’s how I could turn an empty ISA into a passive income-generating machine.

Getting started

Stocks and Shares ISAs are beneficial for passive income generation because they offer tax-free growth and tax-free dividends. There’s no need to declare on tax returns, flexibility in switching investments without capital gains tax, and exemption from inheritance tax.

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.

So if I haven’t already opened an ISA, I’m going to need to do that. All the main brokerages such as Hargreaves Lansdown offer accounts with an ISA wrapper. However, if I’m only investing a small amount of money, I might be better off finding a brokerage with smaller fixed fees than HL.

Realism, discipline and wise choices

After opening an account I then need to determine my financial goals. I need to clarify what I want to achieve with my ISA, such as when I’d be looking to start taking a second income from my portfolio. I’ve got to be realistic, it’s not happening overnight.

Then I need to evaluate my budget and savings capacity. I must assess my financial situation to determine how much I can contribute to my ISA on a regular basis, considering my income, expenses, and other financial obligations.

If I have no starting capital, I’ll want to be making monthly contributions to grow my portfolio while benefitting from pound-cost-averaging. To make saving easier and consistent, I should arrange automatic transfers from my bank account to my ISA.

Finally, I need to start by making wise choices. I need to do my research when buying stocks and take advantage of stock picks when I can. If I make wild decisions and choose poorly, the value of my investments could fall instead of rise.

Compounding

So just how could I achieve £98,154 a year in passive income? Well, it all depends on compound returns, how much I’m willing to invest every month, the success of my investments (annualised return), and the length of time before I start withdrawing.

I could start with as little as a £2 a day, or £60 a month. Investing with small amounts of money has become easier since the emergence of zero-fee platforms and fractional shares. But for example, let’s imagine I’m contributing £250 a month. Here’s what I could achieve with varying annualised returns.

6% annualised growth8% annualised growth10% annualised growth12% annualised growth
5 years£918.05£1,281.74£1,678.65£2,111.77
10 years£1,977.84£3,379.12£4,697.82£6,286.53
20 years£6,615.26£11,159.36£17,838.31£27,649.13
30 years£14,493.97£28,428.69£53,410.17£98,154.00

Of course, if £250 a month is too much for me, I could look to split the burden with my wife or, of course, reduce it. Moreover, I could also look to increase my monthly contributions in line with inflation, assuming the payments become more comfortable over time.

James Fox has positions in Hargreaves Lansdown Plc. The Motley Fool UK has recommended Hargreaves Lansdown Plc. 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

Young mixed-race woman jumping for joy in a park with confetti falling around her
Investing Articles

Here’s how someone could aim for a million with a handful of shares!

Are you a gambler or an investor when it comes to trying to find realistic ways to aim for a…

Read more »

Hand flipping wooden cubes for change wording" Panic" to " Calm".
Investing Articles

Things are getting tough for this FTSE 100 share. But I’m not selling!

This FTSE 100 share has fallen 17% in value since the beginning of the year. Royston Wild thinks this may…

Read more »

pensive bearded business man sitting on chair looking out of the window
Investing Articles

Here’s how much passive income £5k invested this month could earn in years to come

Christopher Ruane explains how someone with a few thousands pounds to invest could seek to build passive income streams, thanks…

Read more »

Young female business analyst looking at a graph chart while working from home
Investing Articles

Could buying Microsoft stock now be like buying Alphabet in mid-2025 at a share price of $150?

Microsoft’s share price has fallen in 2026 as investors moved away from software names. But Edward Sheldon sees potential for…

Read more »

Asian man looking concerned while studying paperwork at his desk in an office
Investing Articles

A £3.8bn warning for Legal & General shareholders

Legal & General shares currently offer one of the highest dividend yields in the FTSE 100 index. The big question…

Read more »

Man hanging in the balance over a log at seaside in Scotland
Investing Articles

Down 61% and a P/E of 5.9! Is this FTSE 100 share FINALLY rebounding?

JD Sports has been one of the FTSE 100's worst performing shares of the last five years. But latest results…

Read more »

UK supporters with flag
Investing Articles

How to build a £20,000-a-year passive income from a Stocks and Shares ISA

Andrew Mackie looks at high-conviction stock ideas he believes could help investors build long-term wealth in a Stocks and Shares…

Read more »

Young happy white woman loading groceries into the back of her car
Investing Articles

With a P/E of 15.4, my Tesco shares no longer look cheap. Are there better options out there?

Tesco shares have hit a high and no longer look like the reliable, defensive name they’ve long upheld. But don’t…

Read more »