How I’m investing £20k in my Stocks and Shares ISA

What’s the best way to invest in a Stocks and Shares ISA? Stephen Wright’s plan is based on where share prices are, not where the stock market is going.

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.

The new financial year is here, meaning a fresh £20,000 Stocks and Shares ISA contribution limit. Every year I make it my priority to use as much of this as I can – it just makes sense from a tax perspective.

But how should I go about doing this over the course of the year? Should I look to buy now, or should I hold my cash and wait for better opportunities to emerge?

Two strategies

One way of investing in the stock market involves trying to figure out when shares are at their cheapest and then buying them. This involves working out when the market isn’t going to go any lower.

The trouble with this approach is that it’s difficult. Knowing when prices are at their lowest levels is only easy looking back. In real time, it’s difficult, and some say impossible.

An alternative approach is to just buy as often as possible. That way an investor gets the average price of the market over time and if it goes up – which it generally does – the investor makes money.

This avoids the problem of trying to work out when shares are at their cheapest. But it involves buying stocks when they’re clearly in bubble territory and good returns from investments are unlikely.

With my Stocks and Shares ISA, I’m not following either approach. By using a different strategy, I’m hoping to avoid the problems with each.

Intrinsic value

Instead of trying to work out when stocks are as low as they’re going to be, my plan is to invest when I believe prices are below what the shares are worth. If I can do this, it avoids the problems of both approaches.

By focusing on what an investment is worth – its intrinsic value – I don’t need to know whether the price is going to be higher or lower tomorrow. I only need to know whether it’s below what I think it’s worth right now.

I also shouldn’t find myself buying when prices are too high. Sticking to investments where the stock trades at less than what I think it’s worth should stop me buying when prices are obviously too high.

This is the strategy billionaire investor Warren Buffett has used to such good effect over the years. So if it’s so successful, what’s the disadvantage – in other words, why doesn’t everyone do it?

The obvious reason is that working out what an investment is worth isn’t straightforward. Buffett’s success is as much a result of his own uncommon skill as his approach to investing in stocks.

I’m not suggesting I’ll achieve a Buffett-like return in my Stocks and Shares ISA. But there are things I can do to give myself a better chance with this approach.

Investing £20,000

The best thing is to stick to companies that are relatively easy to predict. By definition, this makes it easier for me to avoid overpaying for a stock when its price is more than its worth.

Whether prices go up or down, if I stick to buying shares below their intrinsic value, I can be happy I got a good deal. Rather than guessing about the future, when I see an opportunity, I plan to take it.

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.

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

Long-term vs short-term investing concept on a staircase
Investing Articles

Is now a good time to start investing in the wealth-building stock market?

The stock market is a battle-hardened builder of wealth long term. But with risks mounting, is now a good time…

Read more »

Investing Articles

£10,000 invested in red-hot Tesco shares just 1 week ago is now worth…

Harvey Jones is impressed by how well Tesco shares have defied recent stock market volatility. So can this FTSE 100…

Read more »

Road 2025 to 2032 new year direction concept
Investing Articles

See the income from investing a £20k ISA in this UK stock before it goes ex-dividend on 9 April

Harvey Jones says this UK stock offers one of the highest yields on the FTSE 100. Investors need to act…

Read more »

Middle-aged Caucasian woman deep in thought while looking out of the window
Investing Articles

What’s going on with the AstraZeneca share price now?

Dr James Fox explores the recent movements in the AstraZeneca share price and evaluates whether it's still a good long-term…

Read more »

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

This S&P 500 stock is down 30% and the CEO just bought $10m worth of shares

Insiders only buy a stock for one reason – they expect its price to go up. So, this S&P 500…

Read more »

Black woman using smartphone at home, watching stock charts.
Investing Articles

£5,000 invested in BAE Systems shares a month ago is now worth…

BAE Systems shares have been among the FTSE 100's best performers in recent years. The question is, can the defence…

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

Here’s how a £20k ISA could generate £7,875 in monthly passive income

Have £20,000 ready to invest? Royston Wild explains how you could put this in a Stocks and Shares ISA to…

Read more »

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

By April 2027, £2,630 invested in Barclays shares could be worth…

Barclays shares have been flying. But what might happen to a chunk of money invested in the bank's stock over…

Read more »