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22 Jan

Choosing your mortgage term is one of the biggest financial decisions you'll make when buying a home. Get it right, and you could save thousands of pounds in interest. Get it wrong, and you might struggle with unaffordable monthly payments or pay far more than necessary over time.

Understanding mortgage terms

Your mortgage term is simply the length of time you'll take to repay your home loan. The proportion of borrowers taking out new mortgages with terms of 30 years or longer has risen to 62% recently, although you can typically choose anything from 5 to 40 years.

The key trade-off is straightforward: shorter terms mean higher monthly payments but less interest paid overall. Longer terms reduce your monthly outgoings but increase the total cost of your mortgage.

The 15-year mortgage advantage

If you can afford higher monthly payments, a 15-year term could save you money. You'll own your home outright much sooner, and the interest savings can be dramatic.

For example, on a £250,000 mortgage at 4% interest, you'd pay around £1,849 monthly over 15 years, with total interest of roughly £82,820. The same mortgage over 30 years would cost about £1,193 monthly but accumulate approximately £179,480 in interest.

That's nearly £100,000 more paid in interest over the longer term.

Benefits of a 25-year term

The 25-year mortgage strikes a middle ground that works for many households. Your monthly payments are more manageable than a 15-year term, yet you'll still clear your mortgage well before retirement age if you're buying in your 30s or early 40s.

This flexibility matters. Life changes, and having breathing room in your budget for unexpected expenses, career shifts, or family planning can prove invaluable.

When 30 years makes sense

For first-time buyers struggling with affordability, particularly in expensive areas like London, a 30-year term might be the only way to get on the property ladder.

The average first-time buyer in England is now 34 years old, meaning many people are still working into their 60s anyway. A longer term keeps your monthly commitments lower, freeing up money for other priorities like pension contributions or building an emergency fund.

Making your decision

Your ideal mortgage term depends on several personal factors:

Think about when you plan to retire. You generally want to clear your mortgage before you stop working, so if you're 45, a 30-year term might not be suitable.

Consider your income stability and career prospects. If you expect earnings to increase, you might start with a longer term and make overpayments later to reduce the overall cost.

Your wider financial picture counts too. Do you have high-interest debts? An adequate emergency fund? Pension contributions on track?

The advisers at MoneySprite in Bishopsgate, London, can help you evaluate these factors and find a mortgage term that balances affordability with your long-term financial goals. Contact MoneySprite today to discuss which mortgage term works best for your circumstances.

YOUR HOME MAY BE REPOSSESSED IF YOU DO NOT KEEP UP REPAYMENTS ON YOUR MORTGAGE.

THE VALUE OF INVESTMENTS AND ANY INCOME FROM THEM CAN FALL AS WELL AS RISE AND YOU MAY NOT GET BACK THE ORIGINAL AMOUNT INVESTED.

Approved by The Openwork Partnership on 26/01/2026.

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