People who have paid themselves artificially low salaries to avoid paying the top personal tax rate should take advantage of an offer to confess while it is still on the table, says a tax expert.
The Inland Revenue Department's concession to make a voluntary disclosure - granted after the outcome of the Penny and Hooper case in 2011 - runs out at the end of this month.
Ian Penny and Gary Hooper were two Christchurch surgeons who used company structures and family trusts to artificially lower their salaries to avoid a higher personal income tax rate introduced in 2001.
The Supreme Court sided with the IRD when it ruled that "income derived from personal exertion should belong in its appropriate taxation band and should not be inappropriately diverted away".
PricewaterhouseCoopers tax partner Geof Nightingale said the IRD's concession, and subsequent decision to extend the deadline to March 31, had been a "pragmatic" approach.