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.

Here’s how I’d invest £100 per week in an ISA in 2021 to start earning a passive income

Investing even modest amounts of money in an ISA could be starting point to make a passive income in 2021 and beyond, I feel.

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.

Earning a passive income from investing in an ISA may seem more difficult now than it has been in previous years. After all, low interest rates are likely to remain in place throughout 2021. That means assets such as cash and bonds continue to offer low income returns.

However, the stock market crash means that many FTSE 100 and FTSE 250 shares have high dividend yields at the present time. Their low share prices and maintained dividends could hold long-term investment appeal. Therefore, even modest regular investments could be a good starting point to make a rising income over the long run.

XXX

Investing £100 a week in an ISA to make a passive income

At the present time, the FTSE 100 offers a generous passive income. The index currently yields nearly 5%. That’s because it’s trading significantly lower than its record high following the 2020 stock market crash. Moreover, many of its members offer even higher dividend yields than the index at the present time. As such, an ISA investor could realistically build a portfolio of FTSE 100 shares that together have a combined yield in excess of the index’s 5%.

Furthermore, it may be possible to obtain a relatively resilient income return from FTSE 100 and FTSE 250 shares. For example, investors may wish to consider a company’s financial position before they purchase. Businesses with low debt levels and substantial interest cover may be better able to cope with a period of weaker sales. Similarly, stocks with dividend cover in excess of one (where net profit covers dividends more than once) may offer a more robust passive income in 2021 and beyond.

Obtaining a rising income return in the long run

Of course, a £100 weekly ISA investment is unlikely to return a passive income large enough to provide financial freedom in 2021. However, the prospect of an improving economic outlook means that dividend growth rates in 2021 and beyond could strengthen significantly versus their current rates.

After all, the world economy has always recovered from its downturns to post strong GDP growth over the long run. As a result, ISA investors may be able to enjoy a high yield today that grows at a fast pace over the coming years.

As such, investing in companies that not only have high and affordable yields, but also offer dividend growth potential in future, could be a shrewd move. They may include stocks that are likely to benefit from long-term growth trends within their industry. Or maybe those companies with wide economic moats that can lead to rising profitability over the long run. They may be able to afford fast-rising dividend payouts in the coming years. And that could transform a modest regular ISA investment in 2021 into a surprisingly large passive income in the long run.

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

Friends and sisters exploring the outdoors together in Cornwall. They are standing with their arms around each other at the coast.
Investing Articles

£503 buys 14 shares in this FTSE 250 stock that returned 23.9% annually for the last 15 years

This FTSE 250 stock has averaged a huge return for 15 years. At today's price, £503 buys 14 shares. But…

Read more »

Black woman using loudspeaker to be heard
Investing Articles

£1,000 buys 25 shares in this FTSE 100 stock that’s returned 29.2% annually for the last 10 years

This FTSE 100 mining stock has returned close to 30% a year for a decade. At 3,995p, £1,000 buys 25…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

Down 47%, is this growth stock finally worth buying in May?

With a £288m order book and a hidden pipeline of defence and nuclear contracts, is this growth stock now too…

Read more »

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

2 REITs yielding 7%+ to consider for passive income in 2026

A REIT backed by the NHS and another backed by Tesco and Sainsbury's with both yielding 7%+. Here's why I'm…

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

Just 97 shares of this UK dividend stock generate £238 in passive income

A 5.7% yield, £238 in passive income from just 97 shares, and one of the most divisive dividend stocks on…

Read more »

ISA coins
Investing Articles

£10,000 in an ISA generates a second income of…

The London Stock Exchange is home to some of the world's most generous dividends. But how big a second income…

Read more »

Shot of a senior man drinking coffee and looking thoughtfully out of a window
Investing Articles

Expert recommendations: 2 top income stocks yielding 7%+!

With yields of 7.2% and 7.8% respectively, these two income stocks are catching the eyes of institutional analysts. Should investors…

Read more »

Illustration of flames over a black background
Investing Articles

3 top income-focused stocks to buy in May 2026, according to experts

Looking for a stock to buy for income in May 2026? Experts have flagged these three UK dividend shares as…

Read more »