New Zealand businesses owe more than $1.4 billion in unpaid GST and PAYE from the 2025 tax year, according to new reports.

Of 2025's number, $432.9 million relates to employer activities and $1.047 billion to GST.

IRD Customer Segment Manager Tony Morris says this data's in line with what's happening overseas - but it's an area they aim to put more focus on.

"What we're seeing is a bit of an increase in the amount of companies getting in debt - and some of those are the ones that possibly would have failed earlier during Covid. So we're definitely seeing an increase."

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