Is it best to overpay a mortgage or invest the money?

Is it better to overpay your mortgage, or invest the money? Let’s run a calculation.

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.

Last week, you may have heard that the Bank of England’s monetary policy committee voted by 7-2 to hold the main rate at 0.75%, following weak economic data. This was contrary to expectations the rate would be cut.

Some newspapers commented that the decision would be well received by savers, but not by those with loans or mortgages.

Here’s what I think.

The main rate

The reason why the Bank of England’s main rate gathers so much attention is that high street banks often use it as a reference point when setting their own interest rates for loans, mortgages, and savings accounts.

Therefore, when the rate is held steady rather than cut, those with loans and mortgages may be disheartened, as the interest rate they pay will likely remain the same. Likewise, those with savings accounts or Cash ISAs might be pleased that the interest they receive will likely not be cut.

Mark Carner, the departing governor of the Bank, stated that “although the global economy looks to be recovering, caution is warranted.”

Although the changes in rate are often small, they can make a huge difference to an individual’s wealth. After all, as Albert Einstein allegedly said: “compound interest is the eighth wonder of the world. He who understands it, earns it. He who doesn’t, pays it.”

With compounding, you earn interest on interest. Or, you pay interest on interest. Think of it as a snowball that keeps on rolling.

To overpay

You might have been advised by a relative or friend to overpay your mortgage with any spare cash you have. There is an argument for doing this. The more you pay, the less time your debt has to compound.

To invest

Newspapers said that a rate cut would be bad for savers, meaning people with savings accounts and Cash ISAs. Not those of us who invest in stocks and shares.

Like many of us, I was hoping the interest rate would be cut. This is because a rate cut can sometimes help propel the stock market, as people use their spare cash to invest or to buy more products from companies that I own shares in.

Which?

Our friend – compound interest – rears its head again. Last year the FTSE 100 returned approximately 11%.

If we compare that to a two-year fixed standard mortgage from high street bank HSBC – currently 1.79% for a maximum loan of £400,000 (90% loan to value), followed by a 4.19% variable rate – we can see that investing the money in the market last year probably would have been in our favour.

In fact, over the past 25 years, which is the length of some mortgage terms, the stock market has returned roughly 140%.

Regardless of whether the Bank of England’s main rate is raised, held or lowered, I believe the returns from the market will be greater than any Cash ISA, especially when dividends are added into the mix.

With interest rates at the level they are today, it might make sense to invest the money rather than overpay the mortgage. I would rather harness the power of compound interest.

T Sligo has no position in any of the shares mentioned. The Motley Fool UK has recommended HSBC Holdings. 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

Night Takeoff Of The American Space Shuttle
Growth Shares

How UK investors can get access to the $2trn SpaceX stock IPO TODAY

Investors in the UK can get exposure to space powerhouse SpaceX today via several investment trusts that trade on the…

Read more »

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

Down 23% from its highs, I’ve just bagged myself a FTSE 100 bargain!

Stephen Wright has seized the opportunity to buy shares in a FTSE 100 company with outstanding growth prospects at an…

Read more »

Close-up image depicting a woman in her 70s taking British bank notes from her colourful leather wallet.
Investing Articles

How to turn an empty ISA into £100 a month in passive income

Stephen Wright outlines how real estate investment trusts can help UK investors aim for £100 a month in passive income…

Read more »

Man riding the bus alone
Investing Articles

Down 23%! Should I buy Meta Platforms for my ISA or SIPP?

Meta stock looks undervalued after sliding steadily lower since last summer. But should I buy the social media giant for…

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

£5,000 invested in Greggs shares 2 years ago is now worth…

Anyone who bought Greggs' shares two years ago will now be sitting on heavy losses. Is there potential for a…

Read more »

Investing Articles

10 days to the next stock market crash?

What happens to the stock market when the current ceasefire in the Middle East expires? And what should investors do…

Read more »

Middle-aged Caucasian woman deep in thought while looking out of the window
Investing Articles

How to try and double the State Pension with just £30 a week

By saving money each week and investing regularly, even someone without a lot of cash to spare can aim to…

Read more »

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

2 badly beaten-down small caps to consider for a £20,000 Stocks and Shares ISA

Ben McPoland highlights a pair of UK small caps that have sold off heavily, making them worth considering for a…

Read more »