If a savvy investor puts £700 a month into an ISA, here’s what they could have by 2030

With regular ISA contributions and a sound investment strategy, one can potentially build up a lot of money over the long term.

| More on:

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.

Shot of an young mixed-race woman using her cellphone while out cycling through the city

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.

Putting money into an ISA is a great way to build wealth. With no tax due on returns generated, one can really get ahead financially with these products.

Here, I’m going to look at how much money an investor could potentially have by 2030 if they put £700 a month into a Stocks and Shares ISA starting today. Let’s dive in.

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.

High returns available

From a wealth building perspective, a Stocks and Shares ISA is far more powerful than a Cash ISA. With the former, one can invest in funds, ETFs, and individual stocks – all of which can potentially generate gains in excess of 10% per year over the long run. With the latter, however, one can only earn interest on savings, meaning that returns are likely to be much lower. That’s why I’m focusing on the Stocks and Shares ISA here.

Now, the returns one can generate within an investment ISA can vary dramatically, depending on what they invest in. But if one is savvy, and constructs a proper investment portfolio, it’s not unreasonable to expect returns of around 8%-10% per year on average over the long run. There’s no guarantee that this kind of return will be achieved, of course, as the financial markets can be volatile at times. But history shows that over the long term, those with proper investment portfolios tend to do well.

Building a portfolio

What does a proper portfolio look like? Well, it depends on who you ask. For me, it consists of both funds and individual stocks. I see funds as a great portfolio foundation as they provide diversified exposure to the markets and ensure that one has the basic building blocks right. Meanwhile, I see stocks as a great way to juice things up and aim for higher returns.

Here’s an example. Let’s say an investor was just starting out today and wanted to build a great portfolio. For this investor, the Vanguard FTSE All-World UCITS ETF (LSE: VWRP) could be a great fund to consider as a core holding. With this ETF, the investor would get access to over 3,500 stocks from many different countries. So, the product could serve as a great portfolio foundation.

Over the last five years, this ETF has returned about 11% per year (ignoring platform fees). Now, past performance isn’t an indicator of future returns. If global stock markets experience a rough patch due to economic weakness or a ‘black swan’ event, this ETF is likely to underperform. As markets rise over time, however, this fund should provide solid returns.

So, let’s say the investor puts 80% of their money into this product. They could then spice things up by putting the remaining 20% into stocks that have the potential to beat the market. For example, they could buy some shares in Amazon. This stock has an incredible long-term track record – over the last 20 years, it has returned around 25% per year.

A decent amount of money

Going back to my original scenario, let’s say the investor puts £700 per month into a Stocks and Shares ISA and they’re able to generate a return of 10% per year on their money in the years ahead.

I calculate that by the end of 2030, they could have around £65,000. That’s a decent amount of money from just £700 a month.

Edward Sheldon has positions in Amazon. The Motley Fool UK has recommended Amazon. John Mackey, former CEO of Whole Foods Market, an Amazon subsidiary, is a member of The Motley Fool’s board of directors. 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 For Beginners

Two white male workmen working on site at an oil rig
Investing Articles

Why has BP’s share price slumped following the Venezuela chaos?

Unlike US oil stocks, BP's share price has dropped after recent US action in Venezuela. Can the FTSE 100 company…

Read more »

Investing Articles

Should I invest in the S&P 500 or FTSE 100 index?

The FTSE 100 index just enjoyed its best year since 2009, while the S&P 500 also rose by double digits.…

Read more »

Businessman with tablet, waiting at the train station platform
Investing Articles

FTSE 100 stocks are surging, but these epic UK shares are still cheap!

Looking for the best bargain stocks to buy? These FTSE 100 stocks remain dirt cheap despite the index's spectacular rise…

Read more »

Man smiling and working on laptop
Investing Articles

3 top FTSE 100 investing ideas for 2026!

Discover three FTSE-beating stocks Royston Wild expects to outperform again -- including two he holds in his Self-Invested Personal Pension…

Read more »

Rolls-Royce's Pearl 10X engine series
Investing Articles

£5,000 invested in Rolls-Royce shares at the start of 2025 is now worth…

Investors buying Rolls-Royce shares a year ago would have almost doubled their money by now. Can the FTSE 100 engineering…

Read more »

Investing Articles

Is Greggs’ share price about to shock us all in 2026?

Greggs' share price clattered to five-year lows last year. Discover why writer and Greggs investor Royston Wild thinks it could…

Read more »

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

Warren Buffett looks at a company’s balance sheet first. So what does BP’s tell us?

Warren Buffett thinks investors should focus more on a company’s assets and liabilities. With this in mind, James Beard takes…

Read more »

Black woman using loudspeaker to be heard
Investing Articles

Martin Lewis is talking about stocks and shares. Is it time to listen to the ‘most trusted man in Britain’?

James Beard reckons it’s worth listening to what Martin Lewis, the self-styled ‘Money Saving Expert’, recently said about investing in…

Read more »