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

Why I’d buy GlaxoSmithKline shares in a Stocks and Shares ISA today

Rupert Hargreaves explains why he believes GlaxoSmithKline shares are extremely attractive as a long-term investment.

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.

GlaxoSmithKline (LSE: GSK) shares have printed one of the worst performances on the London stock market this year. I’m struggling to understand why. The pandemic has impacted the business, sure, but the shock has been nowhere near as bad as other FTSE 100 businesses. What’s more, the long-term outlook for this enterprise is hugely encouraging. That’s why I’m considering adding the investment to my Stocks and Shares ISA in the near term. 

GlaxoSmithKline shares on offer

Before I buy a stock, I always like to understand why it’s trading at the level it is. With Glaxo, I’m struggling to determine the reasons behind the company’s underperformance this year. 

Yes, the business is expected to report a modest decline in earnings and sales for 2020. The pandemic has disrupted vaccination programmes around the world, and Glaxo is one of the world’s largest vaccine suppliers. As such, the group saw a significant drop off in demand for key products in the first half of the year. 

However, I think this is only going to be a short-term headwind for GlaxoSmithKline shares. Vaccinations can’t be delayed forever. There are still plenty of other viruses and diseases active around the world aside from Covid-19. Sooner or later authorities will want to restart these programmes, or they could have significant long-term implications. 

As well as the above, the company’s outlook has also been dented by a drop-off in the demand for over-the-counter treatments and medications. Once again, I think this could turn out to be a temporary setback. The sales of temporary pain relief products and toothpaste are unlikely to drop significantly over the long term. As long as humans have teeth, they’ll need to be cleaned. 

Stocks and Shares ISA

All of the above leads me to the conclusion that as a long-term investment, GlaxoSmithKline shares are extremely attractive. 

The company is also a dividend champion. The stock currently supports a dividend yield of around 4.5%. The payout is covered 1.5 times by earnings per share, leaving plenty of headroom for the firm to sustain the distribution if earnings drop in the near term.

Owning the investment in a Stocks and Shares ISA would come with significant tax benefits. For example, there would be no additional tax to pay on that dividend income. 

Furthermore, as the company’s sales and profits rebound, I expect the stock to generate significant capital growth for investors in the medium term. Another advantage of using a Stocks and Shares ISA is the fact that no capital gains tax is due on any assets sold. 

The combination of these two tax benefits may allow investors to make the most of an investment in GlaxoSmithKline shares without having to give a portion of their profits to the taxman. 

Considering the company’s long-term potential, I reckon this could be the best way to own the income and growth champion for maximum profit.

Rupert Hargreaves owns no share mentioned. The Motley Fool UK has recommended GlaxoSmithKline. 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

Three signposts pointing in different directions, with 'Buy' 'Sell' and 'Hold' on
Dividend Shares

Yielding 10.41%, is this the best dividend share in the FTSE 250?

Jon Smith points out a dividend share with a double-digit yield, but explains why digging below the surface provides important…

Read more »

Investing Articles

Is 2026 the year it all goes wrong for the Rolls-Royce share price?

2025 has been another stellar year for the Rolls-Royce share price but Harvey Jones wonders just how long its magnificent…

Read more »

Night Takeoff Of The American Space Shuttle
Investing Articles

A SpaceX IPO could light a fire under this FTSE 100 stock

Shareholders of this FTSE 100 investment trust may have just got an early Christmas present from Space Exploration Technologies (SpaceX).

Read more »

Portrait Of Senior Couple Climbing Hill On Hike Through Countryside In Lake District UK Together
Investing Articles

Can dividends REALLY provide a second income you can live on?

Achieving a strong and sustained passive income in retirement may be easier than you think, even as yields on UK…

Read more »

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 »