The High Court and all three appeal judges had fallen under the deduction spell; the misconception that employees pay PAYE, not the businesses that they work for.
Bureaucrats and the lawyers for each side share this error.
We can forgive them their mistake, their income being assured they do not have to face the grindstone of misery that is the monthly PAYE bill.
If a staff member has a nominal salary of $1,000 a week, their employer pays them $800 and forgets about the other $200 until it is time to send Naomi Ferguson, the Commissioner, her due. The legal obligation to pay that $200 is the employer's. If the business fails, the IRD does not go to the employee seeking the missing funds.
The employee's true income is $800 and their employer must find that $200.
No waged worker lies awake worrying about an unpaid tax bill, but small business owners from Te Anau to the Chathams do.
To illustrate the point, consider a business operating on an overdraft. When staff are paid, the overdraft rises. In effect, the cash to pay staff has been borrowed from the bank and an obligation to pay a set amount has been created, but this obligation is the company's, not the workers'.
Once this transaction is complete there is no PAYE deduction fairy that creates a magical box marked "In trust for Naomi". The company just waits until the tax is due and pushes the bank overdraft up again to cover the tax bill.
The subtlety of the language and process disguises the true nature of the Pay As You Earn scheme. It should be more truthfully described as payroll tax.