How I’d invest £20k in a Stocks and Shares ISA to build long-term wealth

Explore the battle between growth and dividend stocks to discover a good method for building long-term wealth in a Stocks and Shares ISA.

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.

Chalkboard representation of risk versus reward on a pair of scales

Image source: Getty Images

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.

The flexibility of a Stocks and Shares ISA allows investors to pursue a broad range of investing strategies. A popular method is to focus on low-volatility income stocks that pay handsome dividends.

However, for those willing to take on more risk, pursuing shares with better growth prospects can propel a portfolio to new heights much faster.

Both methods are proven strategies for building long-term wealth. But which is the best method for someone looking to invest 100% of their £20,000 annual ISA allowance? Let’s explore.

Growth versus income

Over decades, the majority of investment returns generated in the stock market didn’t originate from growth stocks. In fact, dividend shares as a whole have grossly outperformed.

Let’s look at the US-based S&P 500 index as an example. It’s home to some of the biggest growth stocks in the world, including the likes of Apple, Microsoft, and Nvidia.

Between 1980 and 2020, the index has increased by around 1,790%. This means anyone buying £1,000 worth of shares in a low-cost S&P 500 index fund would have around £17,900 before the pandemic. But if the same investor decides to reinvest all dividends along the way, this return skyrockets to 5,286% – or £52,860!

Clearly, income has pulverised growth. So should investors spend their £20,000 Stocks and Shares ISA allowance exclusively in dividend-paying enterprises? Not necessarily.

As previously highlighted, growth stocks typically carry more risk. They’re usually younger enterprises with fewer resources at hand and a lot of hurdles to overcome. In many cases, these businesses fail to deliver. But every once in a while, a diamond in the rough emerges.

One from my portfolio is medical robotics company Intuitive Surgical (NASDAQ:ISRG). It’s never paid out any dividends to shareholders. And yet, since its IPO in 2000, shareholders have enjoyed returns of 15,137%!

Investing in an ISA in 2023

There have long been debates within the investing community about which style or strategy delivers the best results to the point of controversy. And that’s because the answer isn’t based on the potential gains, but rather on the individual.

Looking at Intuitive Surgical again, the stock price collapsed by roughly 75% within six months of going public. It took over four years to recover before going on an impressive growth streak, only to collapse once again in the 2008 financial crisis. This pattern has continued throughout the last two decades. And even last year, the growth stock was slashed in half during the correction.

Being able to remain emotionally calm and focused during these periods of volatility is essential to be a successful growth investor. And in most cases, especially among investing novices, this is exceptionally difficult.

If I were building my Stocks and Shares ISA from scratch today, I would start by establishing a solid foundation of boring but reliable companies. Once that’s in place, I would begin to venture out into riskier opportunities. After all, nothing stops someone from building a balanced, market-beating portfolio using both growth and dividend stocks.

Zaven Boyrazian has no position in any of the shares mentioned. The Motley Fool UK has recommended Apple, Microsoft, and Nvidia. 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

Teenage boy is walking back from the shop with his grandparent. He is carrying the shopping bag and they are linking arms.
Investing Articles

Is the 102p Taylor Wimpey share price a generational bargain?

Taylor Wimpey shares are now just 102p! Is the housebuilder stock a bargain hiding in plain sight or one to…

Read more »

Investing Articles

With a huge 9% dividend yield, is this FTSE 250 passive income star simply unmissable?

This isn't the biggest dividend yield in the FTSE 250, not with a handful soaring above 10%. But it might…

Read more »

Finger clicking a button marked 'Buy' on a keyboard
Investing Articles

With a big 8.5% dividend yield, is this FTSE 100 passive income star unmissable?

We're looking at the biggest forecast dividend yield on the entire FTSE 100 here, so can it beat the market…

Read more »

Business manager working at a pub doing the accountancy and some paperwork using a laptop computer
Investing Articles

Why did the WH Smith share price just slump another 5%?

The latest news from WH Smith has just pushed the the travel retailer's share price down further in 2025, but…

Read more »

ISA coins
Investing Articles

How much would you need in a Stocks & Shares ISA to target a £2,000 monthly passive income?

How big would a Stocks and Shares ISA have to be to throw off thousands of pounds in passive income…

Read more »

Middle-aged white man wearing glasses, staring into space over the top of his laptop in a coffee shop
Investing Articles

£10,000 invested in Diageo shares 4 years ago is now worth…

Harvey Jones has taken an absolute beating from his investment in Diageo shares but is still wrestling with the temptation…

Read more »

Investing Articles

Dividend-paying FTSE shares had a bumper 2025! What should we expect in 2026?

Mark Hartley identifies some of 2025's best dividend-focused FTSE shares and highlights where he thinks income investors should focus in…

Read more »

piggy bank, searching with binoculars
Dividend Shares

How long could it take to double the value of an ISA using dividend shares?

Jon Smith explains that increasing the value of an ISA over time doesn't depend on the amount invested, but rather…

Read more »