The overall number of mortgages in arrears fell slightly in the first quarter of 2017, and is down on both the previous quarter and a year ago, according to the CML's figures. There were 92,600 mortgages in arrears, representing 0.84% of all mortgages.
However it raised concerns that "there is a minority cohort of borrowers for whom arrears are worsening".
The number of properties taken into possession was 10% down on a year ago (though up on the fourth quarter, reflecting a usual seasonal pattern). In total, 1,900 properties were taken into possession - the eighth successive quarter of a repossession rate of 0.02%.
In line with the normal trend of recent times, the buy-to-let arrears rate was lower than the owner-occupier arrears rate, but the repossession rate was higher. The CML says this is because of the high level of forbearance that lenders typically seek to extend to home-owners to try to enable them to resolve their difficulties and keep their homes wherever possible
Paul Smee, CML director general, commented: "This positive picture of mortgage performance is good news, and reflects a continuing benign interest rate and employment environment. However, it is important that borrowers continue to think about the future, and how they would cope with less positive conditions, even if that scenario seems distant.
"Lenders will always work with borrowers to try to help them through the inevitable periods of difficulty that life may throw at them, such as periods of unemployment, illness or relationship breakdown. So anyone facing difficulty should not hesitate to make contact with their lender, who will wish to help them resolve their difficulties and remain in their home wherever possible."