How To Join Britain’s ISA Millionaires

Learn how you really can make a million from ISA investing.

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.

Would you believe that there are already around 200 ISA millionaires in the UK?

Including the PEPs and TESSAs that preceded them, these tax-free investment vehicles have been in existence for 30 years now, with PEPs first introduced in the 1986 budget and the complementary TESSAs joining them in 1990.

It’s a fair guess that a good number of those ISA millionaires have been in it right from the start, transferred their PEPs and TESSAs to ISAs, and used their full allowances every year. And if that’s what can be achieved in 30 years, just imagine what heights you could reach over a full lifetime of investing!

What 30 years can bring

First, let’s think about what you might accumulate over the next 30 years and see if you could match these ISA millionaires. We’ll assume you’re able to use up your entire ISA allowance of £15,240 every year, investing it in 12 monthly installments of £1,270. How much would that bring in?

It all depends on the annual rate of return you can get, and if you stashed your savings in a cash ISA offering 2% annual interest (and a lot of them offer less than that), you’d finish your 30-year stretch with approximately £625,000 in the bag. Of that, £457,000 would be your own contributions with the remaining £168,000 coming from compound interest, and you might not think that’s too bad.

But what if you invest in shares instead, and reinvest any dividends you earn? An average annual return of 6% per year including dividends isn’t at all an unreasonable expectation (and I’d say it’s probably quite conservative). Some years you’d do better than that, others not as good, and some years you’d actually lose money — but with 30 years at your disposal, those short-term ups and downs will even-out and it’s the long-term average that counts.

With an average of 6% a year from shares, your ISA value would grow to around £1,244,000, easily getting you into the ISA millionaires club. What’s more, instead of the £168,000 in interest from a cash ISA, you’d be £787,000 in profit from share price appreciation and reinvested dividends!

A full life of investing

Now let’s extend our ‘what if?’ thinking a little further. It’s obviously unrealistic for the vast majority of us to use our full ISA allowance from the day we reach 18, so I’ll go with the following scenario…

Firstly, your parents start a Junior ISA for you when you’re born and invest the full £4,080 annual allowance, then when you reach 18 it converts to a standard ISA and you manage to invest £500 a month until you reach the age of 30. From then on, you use up your full allowance every year for the next 30 years. How much do you think you might have to celebrate your 60th birthday, assuming the same 6% return each year from shares? Go on, have a guess before you look down and find out…

Would you be surprised to learn that, through your ISA investments, you’d end up with a cool £3.35m, all tax free? The same plan, only invested in a 2% cash ISA, would fall short of the million pound target with a total of just £975,000.

Convinced yet?

The lesson is clear. If you want to reach millionaire status, invest as much of your annual ISA allowance as you can, start as early as you can — and put it in shares!

More on Investing Articles

A young Asian woman holding up her index finger
Investing Articles

Don’t miss this once-in-a-decade opportunity to profit from the stock market’s AI hype

Our writer considers a rare value opportunity that could emerge if AI hype leads to a siginficant stock market correction.…

Read more »

A senior man using hiking poles, on a hike on a coastal path along the coastline of Cornwall.
Investing Articles

£10,000 invested in easyJet shares on 1 April is now worth…

It's been a strange month for easyJet shares. But what exactly would have happened to a sum invested in the…

Read more »

Portrait of elderly man wearing white denim shirt and glasses looking up with hand on chin. Thoughtful senior entrepreneur, studio shot against grey background.
Investing Articles

Down 29%, should I buy Palantir for my Stocks and Shares ISA?

Palantir Technologies has lost over a quarter of its value in the past few months. Does this make it a…

Read more »

Man putting his card into an ATM machine while his son sits in a stroller beside him.
Investing Articles

Selling for £1, are Lloyds shares still a bargain?

Lloyds shares sold for pennies for many years -- but now cost a pound. Our writer sees some strengths in…

Read more »

Close-up image depicting a woman in her 70s taking British bank notes from her colourful leather wallet.
Investing Articles

How much could spending just £5 a day on UK shares earn in passive income?

Sticking to UK shares in well-known companies, our writer shows how £5 a day could be used to target over…

Read more »

Dominos delivery man on skateboard holding pizza boxes
Investing Articles

Think you’re too young for a SIPP? Think again!

Is a SIPP something best left to later in working life? Not at all, according to this writer -- and…

Read more »

Close-up of a woman holding modern polymer ten, twenty and fifty pound notes.
Investing Articles

These 5 FTSE 100 shares all offer dividend yields well above average!

Christopher Ruane gives the lowdown on a handful of FTSE 100 shares, all yielding considerably higher than the index, that…

Read more »

Investing Articles

How to turn a Stocks and Shares ISA into £10k of annual passive income

Mark Hartley outlines a simple method of achieving a stable passive income stream from a Stocks and Shares ISA without…

Read more »