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.

No Cash ISA for me! How I’d invest a Stocks and Shares ISA to target a 12% annual return

Even as interest rates rise, this writer is sticking to a Stocks and Shares ISA. Here’s his plan to target long-term double-digit returns.

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

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!.

For me, a Stocks and Shares ISA can be a useful vehicle to try and build long-term wealth. In fact, taking the long-term approach to investing as I do, I think tucking my money away in an ISA and letting it get to work is very attractive.

But with some attractive interest deals available for Cash ISAs right now, I could use one of them and avoid the capital loss risk present in a Stocks and Shares ISA.

Should you buy Rolls Royce 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.

Why am I not doing that? I think I might get a bigger return overall by putting my ISA to work in the stock market!

As an example, imagine I wanted to target a 12% return on my ISA share portfolio. Here is how I would go about it.

Choosing a timeframe

When setting my target, a small but important piece of definition will help me clarify my investment objective and strategy.

If I want an annualised return of 12%, or what might be described as my compounded annual growth rate, it means I want my average return to be 12% a year for the lifetime of my Stocks and Shares ISA. Even though some years I may do worse, in others I could do better, meaning I still hit my target.

As an example, Warren Buffett’s company Berkshire Hathaway has produced a compounded annual gain in its per-share market value of 19.8% since 1965. Last year it only managed a 4% annual gain. But the average is much higher than that, thanks to years like 2021 when the annual gain was 29.6%.

An alternative that should be easier to hit is aiming for a regular annual return of 12% — but not immediately.

Power of compounding

How might that work in practice? Imagine I invest in dividend shares that yield around 8%. I could withdraw my dividends as I receive them, meaning I would earn an 8% annual return from dividends alone.

But if I instead reinvested them (something known as compounding), after 11 years I would be earning a 12% annual return on my original investment, presuming constant share prices and dividends.

Simply by forgoing cash dividends in the first few years, I could increase my annual return down the line without needing to invest any more cash.

I would not sacrifice quality for yield when selecting shares. After all, dividends are never guaranteed. But right now, quite a few blue-chip FTSE 100 shares have dividend yields over 8%, including British American Tobacco, Legal & General and M&G.

Quality on sale

Above, I explained how I could aim for my 12% return target using dividends alone. If I choose quality companies that can grow their profits over time, buying when they are attractively valued could help me benefit from a rising share price as well as dividends.

But even if I buy great companies, if I overpay I could see my investment value shrink as the share price falls.

That is why I aim to build a Stocks and Shares ISA stuffed with a range of great businesses. But I do so patiently, waiting for share prices I think offer me good value.

C Ruane has positions in British American Tobacco P.l.c., Legal & General Group Plc, and M&g Plc. The Motley Fool UK has recommended British American Tobacco P.l.c. and M&g 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

Silhouette of a bull standing on top of a landscape with the sun setting behind it
Dividend Shares

How much second income could I make from £10k in the stock market?

Jon Smith explains how he'd create a diversified dividend portfolio to boost his second income, and includes a potential pick.

Read more »

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

Could this be a new era for the Lloyds share price?

The Lloyds share price has had a terrific five years, leaping by 128% (plus juicy dividends). But will this stock…

Read more »

Young black woman walking in Central London for shopping
Investing Articles

Tesco’s share price drops 2% on Q1 trading miss. What’s gone wrong?

Weak like-for-like sales last quarter have pushed Tesco's share price lower on Wednesday (18 June). I think it might keep…

Read more »

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

This FTSE 250 fund’s manager has significant skin in the game

Ben McPoland explores the investment case for an out-of-favour FTSE 250 investment trust that's now offering a nice dividend yield.

Read more »

Young woman working at modern office. Technical price graph and indicator, red and green candlestick chart and stock trading computer screen background.
Investing Articles

Here’s what £100 invested in Raspberry Pi shares at the start of 2026 is already worth…

Raspberry Pi shares have been on an incredible tear. Here's what that has meant for shareholders -- and our writer's…

Read more »

Young woman carrying bottle of Energise Sport to the gym
Investing Articles

Here’s how an empty ISA today could be earning £19,343 in passive income annually just a decade from now!

An ISA can be a passive income machine for the investor willing to put money in and adopt a long-term…

Read more »

A senior man and his wife holding hands walking up a hill on a footpath looking away from the camera at the view. The fishing village of Polperro is behind them.
Investing Articles

How much do you need in a SIPP to replace the average £39,039 UK salary?

Harvey Jones shows how it's possible to generate income equal to the average full-time weekly salary by purchasing FTSE 100…

Read more »

Investing Articles

This 7.7% yielding dividend stock trades at a 13-year low – time to consider buying?

Harvey Jones highlights a FTSE 250 dividend stock that's taken an absolute beating in recent years, but could be primed…

Read more »