The State Pension is not enough! I’d invest £500 per month in an ISA to retire in comfort

The State Pension will not guarantee you a comfortable retirement, but investing £500 a month in an ISA could help you get rich and retire early.

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 State Pension pays just £175.20 a week. That works out at £9,110.40 a year, barely a third of the full-time national salary.

While this is a valuable safety net, it will not give you a comfortable retirement. All it does is cover the basics. If you want to retire in comfort, you have to look beyond the State Pension. That means building savings in your own name.

This will not simply give you a wealthier retirement. It also gives you the freedom to choose when you retire. This year, the State Pension age rises to 66 for both men and women. It will climb higher still as time passes.

If you have saved enough money under your own steam, you can decide when you are ready to stop working. Not the politicians.

The State Pension is only the start

A great way of building extra wealth for your retirement is to invest in FTSE stocks. These give you capital growth from rising share prices, and income from dividends. In the longer run, history shows shares beat almost every other asset class.

Some will be nervous because of recent stock market volatility. That is understandable. The global economy is only just emerging from lockdown. However, this could be an excellent time to buy shares to top up your State Pension, if you plan to hold them for the long run.

The stock market crash in March means top FTSE 100 stocks are now trading at far lower valuations than at the start of the year. The index as a whole is down almost 20%. Many solid companies are going cheap.

While the volatility may continue, that does not matter so much if you are investing for the long term. You can further reduce the risk by investing a regular monthly sum, rather than making a large one-off payment. That way you actually benefit from volatility. If share prices fall, your monthly payment will pick up more stock at the reduced price.

If you could stretch to £500 a month, you would start building wealth quickly. If you invested that every month for 30 years and total returns averaged 7%, including dividends reinvested, you will have an incredible £606,438. That would be a nice supplement to your State Pension.

Buy FTSE 100 shares today

That kind of money could make a massive difference to your retirement. Even if you can only afford, say, £150 a month, you would have £151,610. Again, that would dramatically boost your State Pension income prospects.

I would recommend investing in a spread of FTSE 100 shares inside a Stocks and Shares ISA. That way you can take all your returns free of income tax and capital gains tax. It is a hugely generous tax break.

If you don’t know where to start, The Motley Fool UK site is full of tips and recommendations for top FTSE 100 stocks. Spread your money between different companies to reduce risks. While some may fall in the short term, in the longer run, building a portfolio of shares offers an attractive supplement to the State Pension.

By investing monthly, and keeping your money invested for the long term, you can start looking forward to retirement, whatever happens to the State Pension.

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

British pound data
Investing Articles

Starting with nothing? Here’s why now is the perfect time to start building a passive income

Many are worried that 2026 might be a bad time to start investing in stocks and shares. Our Foolish author…

Read more »

ISA coins
Investing Articles

Decided not to bother with a Stocks and Shares ISA? You might be missing these 3 things!

With a fresh annual allowance for contributing to a Stocks and Shares ISA upon us, what might people who don't…

Read more »

GSK scientist holding lab syringe
Investing Articles

Why is everyone buying GSK shares?

GSK shares have been outperforming the FTSE 100 in 2026. Paul Summers takes a closer look and asks whether this…

Read more »

Middle-aged white man pulling an aggrieved face while looking at a screen
Investing Articles

£10,000 invested in easyJet shares at the start of 2026 is now worth…

Anyone buying easyJet shares will have endured a rough ride since January. Paul Summers wonders whether things could get even…

Read more »

Close-up of a woman holding modern polymer ten, twenty and fifty pound notes.
Investing Articles

5 years ago, £5,000 bought 2,645 Barclays shares. But how many would it buy now?

Despite delivering an impressive return since April 2021, Barclays' shares have lagged the FTSE 100's other banks. James Beard considers…

Read more »

Side of boat fuelled by gas to liquids, advertising Shell GTL Fuel
Investing Articles

5 years ago, £5,000 bought 354 Shell shares. But how many would it buy now?

When it comes to Shell’s numbers, most of them are impressive. And it’s no different when looking at the recent…

Read more »

A rear view of a female in a bright yellow coat walking along the historic street known as The Shambles in York, UK which is a popular tourist destination in this Yorkshire city.
Investing Articles

I asked ChatGPT if I should buy Aviva, Diageo or BAE Systems stock and it said…

Aviva, Diageo and BAE Systems shares are popular FTSE 100 picks. But which of the three does ChatGPT like the…

Read more »

Tesla car at super charger station
Investing Articles

SpaceX’s IPO threatens to leave the Tesla share price on the forecourt

As Elon Musk starts fuelling the engines for a SpaceX IPO, could the Tesla share price get left in the…

Read more »