Increasing numbers of homeowners are taking out long-life mortgages that may even run into their pension years, to boost their borrowing power.
But while doing so will reduce their monthly payments now, it could land them more than £100,000 extra interest, as our mortgage cost calculator shows.
The days of the 25-year mortgage being standard have long gone and many first-time buyers and home movers are now taking on 30, 35 and even 40-year mortgages.
Extending the term helps borrowers lower monthly payments to meet affordability criteria but over the lifetime of the mortgage they will pay much more in interest.
For example, a £200,000 mortgage with an average rate of 5 per cent over 25 years will cost £150,754 in interest but over 40 years it would see £262,909 in interest charges rack up.
Our calculator lets you compare the true cost of rival mortgages and shows how much more interest you would pay with a 40-year mortgage than a 30-year or 25-year home loan.
