The cheapest five-year fixed-rate mortgage has fallen below 4% for the first time since early October.
Competition between lenders and lower interest rate forecasts have brought down the cost of borrowing, with HSBC launching a five-year fix at 3.99% for those remortgaging, down from 4.29% before.
The reduction will save someone with a £200,000 mortgage £420 a year in repayments.