Crunching the Numbers: Comparing Mortgage Costs at Different Interest Rates

Last Updated: 11 Jun 2024

When it comes to purchasing a home, one of the most significant financial decisions you'll make is choosing a mortgage. Beyond simply finding the right property, understanding the nuances of interest rates can greatly impact the total cost of homeownership. Let's delve into a comparison between mortgages with interest rates of 1.5% and 5%, examining how they affect your bottom line.

1. The Mortgage Principal


Before we delve into interest rates, let's establish our baseline: the mortgage principal. For our comparison, let's consider a £250,000 mortgage, a common amount for many homebuyers.

2. Monthly Payments


At 1.5% interest over a 25-year term, your monthly payment would be approximately £1,000.

Conversely, at 5% interest over the same term, your monthly payment would jump to about £1,461.

That's a difference of £461 per month!

3. Total Interest Paid


Over the life of the loan, the interest paid on a 1.5% mortgage would amount to around £50,000.

For the 5% mortgage, however, the interest paid balloons to approximately £188,300.

That's a staggering £138,300 difference in interest payments alone!

4. Total Cost of the Loan


Adding the total interest paid to the initial principal, the total cost of the 1.5% mortgage would be approximately £300,000.

On the other hand, the total cost of the 5% mortgage would soar to around £438,300.

That's a hefty £138,300 difference in the overall cost of the loan!

5. Affordability and Flexibility


While a lower interest rate undoubtedly translates to substantial savings over time, it's crucial to consider your financial situation and future plans. Opting for a lower interest rate might mean more manageable monthly payments, freeing up funds for other investments or expenses. Additionally, it provides a buffer against potential fluctuations in interest rates in the future.

However, securing a mortgage at a higher interest rate doesn't necessarily mean financial ruin. With careful budgeting and strategic planning, homeowners can still thrive financially while paying down their mortgage.