The Commerce Commission has missed its own deadline on whether it will file court action against three banks involved in its interest rate swaps probe.
The regulator said last December that it expected to file legal action against ANZ, ASB and Westpac banks by March over their sales of interest rate swap contracts to rural customers.
Then, in April, it said its initial time-frame for filing proceedings had become unrealistic and it expected to make an announcement "mid-year".
The commission then said in September it expected to make an "update" the following month.
This update would aim to confirm whether the commission would file action against the banks.