We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- 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. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

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.

I’d aim to turn a £20k ISA into a £21,366 passive income with FTSE 250 shares!

Many Stocks and Shares ISA investors have made fortunes by buying FTSE 100 and FTSE 250 shares. Here’s how I plan to follow their lead and retire in comfort.

| More on:
Young mixed-race woman jumping for joy in a park with confetti falling around her

Image source: Getty Images

You’re reading a free article with opinions that may differ from The Twelfth Magpie’s Premium Investing Services. Become a member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn more, and get a free 'Best Buy Now' stock!.

I think Stocks and Shares ISAs are great ways to build long-term wealth. I’m using one to build a winning portfolio dominated by FTSE 100 and FTSE 250 shares.

Buying UK shares in one of these tax-efficient products could potentially provide me with an awesome passive income in retirement. Let me show you how.

Should you buy Carlsberg Britvic shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

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.

Good, not great

I’m not going to say that cash accounts are useless financial instruments. I use an easy-access Cash ISA to store cash for a rainy day. These products are also a great way for me to manage risk — I know that any money I invest here will still be there 5, 10, 50 years from now.

The same can’t be said for investing in stocks, cryptocurrencies, commodities, or any other asset that’s subject to market forces.

However, this security comes at a price of much poorer returns, a problem that could have a significant impact on my retirement income.

Today, the best-paying, instant-access Cash ISA (from Harpenden Building Society) provides an annual interest rate of 5.01%. Here’s how my retirement pot would look after 30 years if I invested £20,000 in one of these today.

Timescale5.01%
Starting sum £20,000
5 years £25,680
10 years  £32,973
20 years  £54,361
30 years  £89,622

Better returns with FTSE 250 shares

That £89,622 I could make doesn’t look too bad at first glance. But, critically, it assumes the 5.01% rate will remain the same over the next three decades, which is a big assumption to make.

What’s more, the wealth I could have made with that Cash ISA pales in comparison with what I could have made by holding FTSE 250 shares in a Stocks and Shares ISA instead.

Since its inception in 1992, the FTSE 250 has delivered an average yearly return of 11%. This is what a £20k investment would turn into after 30 years if this long-term trend continues.

Timescale11%
Starting sum £20,000
5 years £34,578
10 years £59,783
20 years £178,700
30 years £534,162

As one can see, that 11% return would make me almost six times as much cash after 30 years than that 5.01%.

And if I drew down 4% of this £534,162 a year, I could enjoy a healthy £21,366 passive income for around 30 years before my cash ran out.

An ISA investing strategy

Past performance is no guarantee of future returns. But building a diversified portfolio of FTSE 250 shares could give me a good chance of making a big second income when I retire.

One strategy I’m using is to buy well-established companies that can grow earnings ahead of the broader market. One such example is Britvic (LSE:BVIC), the drinks manufacturer that sells iconic brands such as Robinsons, Pepsi Max and Lipton in several markets including the UK, Brazil and France.

Stable demand for these drinks gives the company excellent earnings visibility over the long term. Meanwhile, its broad geographic footprint and position in multiple categories (including soft drinks, water and energy drinks) gives it extra stability.

Supplementing shares like this with high-dividend, high-growth companies adds risk. But this would also enable me to potentially make greater returns over the long term. And by buying a selection of different companies (say five to 10) I can greatly reduce this risk.

Royston Wild has no position in any of the shares mentioned. The Motley Fool UK has recommended Britvic 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

Image of happy young people man and woman in basic clothing thinking and touching chin while looking aside isolated over yellow background
Investing Articles

Here are 3 factors I assess when considering stocks with a high dividend yield

A dividend yield acts like a siren's call to investors, luring them in with cash promises. But is any trouble…

Read more »

Santa Clara offices of NVIDIA
Investing Articles

Down 14% since May, are the glory days over for Nvidia stock?

Could a recent stock price fall be the canary in the mine for what might happen to Nvidia if the…

Read more »

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

Here’s what the experts said about Rolls-Royce shares 5 years ago…

Five years ago, the consensus view of Rolls-Royce shares was Hold. What does that tell investors looking for the UK’s…

Read more »

Investing Articles

Here’s how much £10,000 put into the FTSE 100 a year ago has earned – with and without dividends

How well has the UK's index of 100 leading shares done over the past 12 months. Our writer digs into…

Read more »

Array of piggy banks in saturated colours on high colour contrast background
Investing Articles

Near 5-year highs, here’s what the experts are saying about the Lloyds share price

Analysts have been steadily raising their Lloyds share price guidance all year, as the bank has been going from strength…

Read more »

Businessman hand stacking up arrow on wooden block cubes
Growth Shares

Near 2010 highs, here’s where the experts think the BP share price could go next

Jon Smith explains why the future looks bright for the BP share price, but flags up its sensitivity to oil…

Read more »

Exterior of BT Group head office - One Braham, London
Investing Articles

Down from a 5-year peak, here’s how high this expert thinks BT shares could soar

This recent analyst upgrade suggests BT shares could climb 50% or more. And although not everyone is so upbeat, targets…

Read more »

UK financial background: share prices and stock graph overlaid on an image of the Union Jack
Investing Articles

With millions to spare, Nick Train is piling into this FTSE 100 stock up 4,300%

A 100-year old investment trust from the FTSE 250 is planning to load up on of this barnstorming FTSE 100…

Read more »