Turning a £20k ISA allowance into £39,261 a year in passive income!

UK residents are able to use tax-free ISA accounts to generate wealth and passive income over the long run. Dr James Fox explains how.

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 bank notes and coins

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.

Passive income is the holy grail of investing for many. And those of us who invest for passive income will likely be aware that using an ISA account can be hugely rewarding. That’s because the wrapper provides UK residences with tax breaks that allow us to maximise our investment returns.

So here’s how I’d target £39,261 a year in passive income.

Saving little and often

Firstly, I’d start by opening a Stocks and Shares ISA with a reputable broker, like Hargreaves Lansdown or Nutmeg. It only takes a matter of minutes and I can open an account with almost no money at all.

While many of us would love to start an ISA with £20K — the maximum annual allowance — in reality, most of us don’t have that amount of cash lying around.

So I may want to kick things off by committing to contribute a monthly figure to my portfolio. Even just £100 a month — or £3.30 a day — could be enough to get me on the path to earning passive income in the long run.

Over a year, that’s £1,200. I’d fall way inside the annual ISA allowance.

Although it’s worth noting that if I don’t have a lot of money to invest, it may be worthwhile choosing a platform with lower fees than Hargreaves. If I don’t invest regularly, I could pay as much as £11.95 per deal with Hargreaves. If I’m only buying £200 of stock, I don’t want to pay that much in commission.

And, to reiterate, I want to be doing all of this inside a Stocks and Shares ISA wrapper. That’s because no taxes are due on any of my returns, dividends, or share price gains. I get to keep everything I make.

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.

Passive income galore

If I don’t have much money, it can be hard to generate life-changing amounts of passive income. Instead, I need to take the dividends, or any returns, that I earn during the year and reinvest them, allowing my pot to grow bigger and bigger.

This strategy — called compound returns — complements regularly contributions, allowing the portfolio to grow faster each year as I start earning interest on my interest. No investment strategy is guaranteed, and the value of my stocks can fall as well as rise, but I’m a big fan of compounding.

As an investor on the FTSE 100, I can look to achieve anything up to 12% annually. But a more realistic figure is between 8% and 10%. A dividend-heavy portfolio might bring me a little less, say 6-8%.

Here’s how much passive income I could generate annually by investing just £100 a month.

6% returns8% returns10% returns12% returns
5 years£367.22£512.69£671.46£844.71
10 years£913.94£1,351.65£1,879.13£2,514.61
20 years£2,646.10£4,463.74£7,135.32£11,059.65
30 years£5,797.59£11,371.48£21,364.07£39,261.60

Of course, the rate of returns is just one of the key variables. I could contribute more, or even look to increase my contributions in line with inflation. And, naturally, the longer I leave my pot without touching it, the more funds I’ll have.

It would be remiss of me not to accept that £39,261 in 30 years won’t be worth the same as it is today and also that my returns aren’t guaranteed, since they may fall as well as rise. But it’s just an example using a relatively achievable contribution of just £3.30 a day.

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.

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

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 »