Can I defer my PAYE payment to assist with cashflow?

No, you are still required to file and make payments for PAYE on time.

As a Thankyou Payroll customer, we've got that sorted for you and will ensure you remain compliant with the IRD.

Here's some info on tax relief:  https://www.ird.govt.nz/covid-19-novel-coronavirus/tax-relief/tax-relief-for-businesses

Source (Credit): Thankyou Payroll