Share your opinion and earn yourself a free Motley Fool premium report!

We are looking for Fools to join a 75 minute online independent market research forum on 15th / 16th December.

To find out more and express your interest please click here

How many cheap BT shares does an investor need to get £100 in monthly ISA income?

BT shares have jumped more than 50% in a year but still yield around 5%. Harvey Jones crunches the numbers to see how much income that would bring.

| 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.

A senior man using hiking poles, on a hike on a coastal path along the coastline of Cornwall.

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.

After years of struggle, BT (LSE: BT.A) shares are suddenly performing like a monster growth stock.

I’m pleased but also frustrated. I wrote about it again and again last year, summoning up the courage to buy what was a troubled recovery play with an uncertain future. Then bottled it.

Well, now the future’s arrived (or at least, the last 12 months of it), and it’s bright. The shares have rocketed 55% over the last year, and the momentum continues, with another 10% jump in the last month alone.

And that’s happening in a volatile market, when investors might be expected to shy away from riskier plays like BT Group. 

Can this FTSE 100 stock maintain its momentum?

The shares got a further lift on 18 March following reports that Indian billionaire Sunil Bharti Mittal has hinted he may increase his stake in the company. Mittal already holds 24.5% of BT.

BT has had a brilliant year as it continues its restructuring efforts under CEO Allison Kirkby, but it’s far from risk free. On 30 January, it reported a 3% drop in Q3 revenues to £5.18bn, due to weaker phone sales and struggles in its business unit.

Its Openreach broadband network has swallowed up billions and while the capital investment phase is largely complete, competition’s fierce as smaller, nimbler rivals eat into BT’s customer base.

Lest we forget, there’s the pension scheme, a hefty legacy obligation that still looms over the balance sheet. Net debt’s a hefty £20bn. BT’s market-cap is just £15.6bn.

The company’s plan to replace tens of thousands of staff with artificial intelligence (AI) may also be more ambitious than the board realises.

BT isn’t just about growth. Today, the stock offers a trailing dividend yield of 4.96%. Sadly, that’s lower than the 6-7% yield seen a year ago. That’s down to the share price rally. 

In 2024, BT paid a full-year dividend per share of 7.7p, with forecasts predicting a 6% rise to 8.16p this year.

The dividend yield’s dropped

So how many BT shares would an investor need to generate £100 a month in their Stocks and Shares ISA? Crunching the numbers, they’d need 13,937. At today’s price of 161.45p, that would require an outlay of roughly £22,500, more than the annual ISA allowance. That’s a significant sum for any private investor to put into a single company.

With the shares still trading at a modest price-to-earnings ratio of just 8.7, BT still looks tempting for investors willing to park smaller sums in the stock.

The 16 analysts covering BT have issued a median price target of 189.8p for the next year. If accurate, that’s an increase of almost 18% from today. Combined with the yield, this could offer investors a total return of 23%.

That’s enticing but forecasts are never guaranteed and BT may struggle to maintain its momentum, given wider economic struggles and competitive pressures.

BT Group’s worth considering for investors seeking both income and growth, but I’d advise caution. The stock’s come a long way in a short time, and given the challenges it will take a lot to sustain its recent pace. 

Harvey Jones has no position in any of the shares mentioned. The Motley Fool UK has no position in any of the shares mentioned. 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

Market Movers

33p penny stock Made Tech could be set for huge gains in 2026, if City analysts are right

This penny stock just experienced a sharp move higher. However, analysts reckon that there are plenty more gains to come…

Read more »

Elevated view over city of London skyline
Investing Articles

FTSE shares: a simple way to build long-term wealth?

Christopher Ruane explains some factors he thinks an investor should consider when trying to build wealth by investing in FTSE…

Read more »

Investing Articles

Will the soaring BP share price surge 88% in 2026?

BP's share price has risen by double-digit percentages in 2025 -- and some analysts think even greater gains could be…

Read more »

Belfast City Sunset with colorful twilight over Lagan Weir Pedestrian and Cycle Bridge spanning over the Lagan River in downtown Belfast
Investing Articles

Here’s what £5,000 put into HSBC shares in January would be worth now!

Would someone who bought HSBC shares back in January now be sitting on a paper profit or loss? Christopher Ruane…

Read more »

Percy Pig Ocado van outside distribution centre
Investing Articles

Down 91%, is there any hope left for Ocado shares?

Down 91% in five years, is the writing on the wall for Ocado shares? Our writer doesn't necessarily think so…

Read more »

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

It’s the most popular UK stock in 2025 but hasn’t grown in 5 years! What’s going on?

Harvey Jones is baffled by the sheer popularity of this UK stock. Its shares have hardly grown in recent years…

Read more »

Finger clicking a button marked 'Buy' on a keyboard
Dividend Shares

How much do you need in a FTSE 250 portfolio to target £2,147 in monthly income?

Jon Smith runs through the steps needed to build up a generous dividend portfolio and outlines why the FTSE 250…

Read more »

Tabletop model of a bear sat on desk in front of monitors showing stock charts
Investing Articles

2 stocks I wouldn’t touch with a bargepole today in my ISA and SIPP

The following two stocks have a history of being incredibly popular with retail investors. So why is this writer avoiding…

Read more »