I’d drip-feed £250 a month into top UK shares in an ISA to aim to retire in comfort

Investing a regular monthly sum of around £250 in top UK shares will help boost my retirement plans, but I will also invest lump sums as well.

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.

I reckon investing in a spread of top UK shares is a great way to build wealth for my retirement, but I’m wary of paying big lump sums into the market. My concern is that shares will crash the next day, and I will be instantly down on my investment.

There is a very simple way around this. I have set up a direct debit, to invest a regular monthly sum into a spread of top UK shares. This means that even if markets crash next day, I will only be down a small amount. I will then have another shot at buying more top shares the following month.

This way, I do not have to pay attention to whether the stock market is rising, falling or whatever. I will invest my regular monthly chunk regardless. In fact, I actually benefit when share prices drop, because my monthly payment picks up more stock.

I’m buying top UK shares

This means I never have to worry about timing the market, which is a fool’s game anyway. Nobody can do it consistently, no matter how clever they think they are.

There is another advantage to investing regular sums in the market. Once I have set up a direct debit, I can forget about it, more or less. That money automatically comes out of my account, so I don’t even notice it. That makes investing easier and less painful. I’ll invest using my Stocks and Shares ISA allowance, so I don’t have to pay income tax and capital gains tax on my returns.

I’m still 15 years away from retirement. If I invest £250 a month, and my portfolio of top UK shares grows at 6.5% a year after charges, that money will grow to £77,262 by the time I stop working. I don’t think that’s enough to retire on comfortably, even with my state pension entitlement. Fortunately, I have other retirement funds in a spread of pensions and tax-free ISAs.

I’m investing lump sums too

That said, I am beginning to get worried. They say retirement creeps up on you, and in my early 50s I am discovering the truth of this. Suddenly, it doesn’t seem that far off, so I will be doing something else on top of my £250.

Whenever I have a lump sum to hand, I plan to buy more top UK shares. I’m happy to invest lump sums of up to £1,000, as it shouldn’t hurt too much if markets crash next day. I will simply hold on for the long term, then the recovery should come.

Like many people, I have been spending way less than usual during the pandemic. While I’ll enjoy a few trips to the pub and a holiday one day – when allowed – I am directing most of my savings into the stock market. I’m on the hunt for top opportunities today. As I explain here, I think banks, mining companies, household goods companies and pharmaceutical shares are among the top UK stocks to buy right now.

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

Front view of aircraft in flight.
Investing Articles

Is it game over for the BP share price rally?

The BP share price has looked like a one-way bet in recent weeks as oil and gas prices soar but…

Read more »

Man hanging in the balance over a log at seaside in Scotland
Investing Articles

Amid geopolitical and AI risks, here’s how I’m positioning my ISA and SIPP in 2026

Edward Sheldon explains how he's allocating capital within his investment accounts and SIPP amid the various risks to the market.

Read more »

Young mixed-race woman looking out of the window with a look of consternation on her face
Investing Articles

My game plan for the next stock market crash

Markets have been surprisingly resilient during the recent Middle East conflict but we still cannot rule out a stock market…

Read more »

Concept of two young professional men looking at a screen in a technological data centre
Investing Articles

1 top growth stock to consider buying after it crashed 59%

This S&P 500 growth stock has fallen off a cliff lately due to AI software fears. Our writer thinks this…

Read more »

A mature woman help a senior woman out of a car as she takes her to the shops.
Investing Articles

Here’s how a 35-year-old putting £15 a day into an ISA could end up earning £18k+ of passive income annually!

A 35-year-old with no ISA but a willingness to invest relatively small sums could one day be earning many thousands…

Read more »

Young black colleagues high-fiving each other at work
Investing Articles

With the potential to double in 10 years, this could be a dividend stock to consider buying

With a yield of 7.2%, income investors might consider buying this stock. But reinvesting the dividends could deliver even more…

Read more »

Happy couple showing relief at news
Investing Articles

How much would someone need to invest in the stock market to target a £1,250 monthly second income?

Investing in the stock market can help deliver long-term wealth. But James Beard says it can also be a way…

Read more »

happy senior couple using a laptop in their living room to look at their financial budgets
Investing Articles

How much would someone need in an ISA to aim to treble the current State Pension?

Experts say the State Pension isn’t generous enough to provide a comfortable retirement. James Beard says the stock market could…

Read more »