How to use mortgage calculators to save money on your home loan

Calculators

For most people, buying a home will be the most expensive purchase in their life, with ongoing monthly payments for a typical period of 25 or more years. The average house price in the UK is around £270,000 and when taking out a mortgage loan of this size, even a small variance in interest rates will make a significant difference.

Using a mortgage calculator helps homebuyers to get a better understanding of how decisions such as loan-term length and the loan amount will impact their total loan repayment amount. A mortgage calculator will also highlight the financial difference between mortgage deals with varying interest rates and fees.

What is a mortgage calculator?

A mortgage affordability calculator is an online tool that homebuyers can use to determine how much they will pay for a mortgage over time. It provides you with a financial overview of your monthly mortgage payments and the total cost of the mortgage. When searching for a property, using a calculator will help you to determine what price range of property will be affordable.

Key figures to input for accurate results

When using an online mortgage calculator, you simply input the following data:

  • Property price
  • Loan amount
  • Deposit amount
  • Interest rate
  • Length of mortgage term
  • Mortgage type
  • Whether you are buying alone or with a partner

Once this data has been added, the calculator will produce the overall cost of the mortgage, the monthly payment amounts and the total interest over the mortgage term.

 

image showing a wooden house on top on a calculator

When you are reviewing mortgage deals, a mortgage calculator will allow you to compare different mortgage types

How mortgage calculators can help you save money

When you are reviewing mortgage deals, a mortgage calculator will allow you to compare different mortgage types and deals and work out how having a larger deposit or a shorter mortgage term can save you money over time. 

You might find that you are close to a Loan to Value ratio that will give you access to lower interest rates and saving up a slightly larger deposit could save you a significant amount of interest over the mortgage term.

Types of mortgage calculators and what they show

There are several different types of mortgage calculators, including:

Mortgage affordability calculator – Shows you how much a lender might offer, estimated monthly payments and your Loan to Value ratio.

Mortgage repayment calculator – A repayment calculator provides projected monthly repayments, total interest and total cost over the loan term.

Remortgage calculator – If you already have a mortgage, this calculator will provide a financial comparison for switching to a new mortgage deal.

Overpayment calculator – If you’re interested in learning how much interest you could save by overpaying on your mortgage, this calculator will help you decide whether it’s worthwhile. Check your mortgage terms allow you to overpay too, as some lenders charge fees for this facility.

Common mistakes to avoid when using mortgage calculators

  • Not including fees. Some calculators do not include mortgage fees in the calculations, so you should add these to give a true reflection.
  • Not considering interest rate increases. You might be able to afford the monthly mortgage payments on current interest rates but what if interest rates go up?
  • Using unrealistic mortgage lengths. Taking out a 35-year mortgage can help you to afford a more expensive property but be mindful of your potential retirement age.

Contact us for mortgage guidance from a professional mortgage broker.