How much will your mortgage cost?

Updated on 16 July 2014

You may know what your monthly repayments are, but how much will your home loan cost over its entire life?

What you have to pay

When it works well, a mortgage is a marvellous beast. You want to own a home, but don't have enough money to buy it outright. So you put down a deposit and then take out a secured loan for the remainder. House prices tend to rise over time; the post-war average is about 8.5% a year. Then, after 25 years or so, you end up owning an asset which is worth several times its purchase price. Lovely!

However, they say there's no such thing as a free lunch, and there are a few flies in this particular ointment. First, a mortgage isn't an interest-free loan – if only! Mortgage lenders are businesses, not charities, so they aim to make a decent return on any money lent to borrowers. So homeowners pay a market rate of interest on their home loans.

In addition, mortgage borrowers must bear other charges, such as:

  • application, booking or reservation fees;
  • deeds release, exit, sealing or discharge fees;
  • higher lending charge (HLC) or mortgage indemnity premium (MIP); and
  • valuation and/or survey fees.

 

Look beyond the interest rate

The largest of the above levies is likely to be the upfront arrangement fee, which can add thousands to the cost of your loan. For example, a fee of 1.5% would add £2,250 to the cost of a £150,000 mortgage. What's more, if you add this fee (and others) to your loan, then you'll pay interest on it over 25 years.

When it comes to weighing up the affordability of a mortgage, most homebuyers don't look much beyond the monthly repayments. However, you should take all fees, charges and interest into account before making a decision on which mortgage is best for you.

What does it all add up to?

Let me show you just how the cost of a mortgage can stack up over its typical 25-year life. Let's assume that you borrow, say, £150,000 over 25 years on a property costing £200,000. As you're borrowing three-quarters (75%) of the value of the property, you're unlikely to pay a higher lending charge, which is good news.

As you want to guarantee that your home loan is paid off at the end of its life, you opt for a repayment mortgage, where you repay both interest and capital every month. Now let's assume that you sign up for a fixed interest rate of 6% a year for the life of your loan. Also, you decide to add the arrangement fee of 1.5% (£2,250) to your loan, to be repaid over the life of your mortgage.

In this example, here's how your monthly mortgage repayments stack up on a mortgage of £150,000 with the arrangement fee added.

Arrangement fee (1.5%)

£2,250

Total loan

£152,250

Interest rate

6% fixed for 25 years

Monthly repayments

£966.45 x 300

Total amount repaid

£289,935

So you borrow £150,000 plus the arrangement fee of £2,250 and make three hundred monthly repayments of £966.45. As you can see, the total amount repaid is close to £290,000, or almost double (193%) what you borrowed to buy the house.

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