The rate at which customers of Ulster Bank and KBC Bank Ireland are closing their accounts slowed last month, according to the latest data compiled by the Central Bank.

93,638 current and deposit accounts were shut during November, an average of 18,728 a week, which is an 11% reduction on the weekly closure rate a month earlier.

It means that of the 1.233 million accounts that were open in both departing lenders at the start of this year, less than half have so far been closed.

558,636 have been shut, leaving a total of 647,780 at the end of November still open.

That marks a reduction of 12% on the figure at the end of October and a decrease of 45% on the number in existence at the start of January.

Of the 392,812 of the accounts that are still open, 280,744 are active the banks say, with 191,890 of those designated as a customer's primary account.

However, slightly better progress appears to have been made on the shutting of primary accounts, with the number reducing by 50% since the start of July.

As with account closures, the pace of account openings at the remaining banks appears also to have slowed with 82,145 opened in November, broadly similar to October.

However, in total far more progress has been made on account openings than closures, with 800,325 new accounts set up over the first 11 months of the year.

This figure, though, also includes accounts that have been opened as part of normal business, not just for account migration purposes.

In November, Ulster Bank began freezing and closing the accounts of the first customers who it had given six months notice to earlier in the year and who had not acted on it.

These closures are included in the Central Bank statistics today.

As that process continues and the same begins at KBC Bank Ireland, it is likely that the number of account closures will begin to grow noticeably.