41% have found it difficult to keep up with bills and credit commitments in the last few months.
Related topic: Arrears
The North East has the highest share of borrowers who have missed at least their last two mortgage payments, followed by the North West and Wales.
The lender has also increased the threshold for communications and utilities account defaults in the last three years from £300 to £500.
The data shows that new arrears cases are 5.3pp lower than a year earlier.
Homeowner and buy-to-let properties in early arrears fell by 3% and 6% respectively.
The North East and North West are the only regions in which arrears growth rate increased.
Richard Harrison, head of mortgages at Atom Bank, explores how flexible solutions can provide borrowers who are struggling to make their mortgage payments with the assistance needed to...
The value of new mortgage commitments fell to its lowest level since 2013, excluding the pandemic.
The number of repossessions remains lower than pre-pandemic figures.