In some cases tied products offer poor value-for-money, as the products they are tied to may not be the best available. First Direct is currently offering one of the cheapest five-year fixed-rate mortgages for borrowing 65% or less of the property's value, but you also have to take out a First Direct current account, which pays no credit interest.
Which? chief executive Peter Vicary-Smith says:
"If you're considering taking out a tied product, look at the whole package to work out whether it offers a good deal."
