When NAB recognises further customer remediation charges in its September half financial report, it will have made provisions of more than A$2.5 billion over the past two years for incorrectly charging advice fees and bank charges.

NAB announced on Friday that it would report an increase in customer-related remediation matters of $380 million ($266 million after tax). The bulk of the charge is for wealth related issues, which will be included in discontinued operations.

This follows additional customer remediation charges of $268 million ($188 million after tax) in the March half, $1.2 billion ($832 million after tax) in the September half last year and $749 million ($525 million after tax) in the March half last year.

The bank will also make a payroll remediation provision of $128 million ($90 million after tax) and an impairment of property-related assets of $134 million ($894 million after tax) in the September half results.

The property charge primarily relates to plans to consolidate the bank’s Melbourne office space, with more staff expected to adopt a “flexible and hybrid” approach over the long term.

All up, the provisions and impairments will reduce the bank’s common equity tier 1 capital ratio by 15 basis points.