Hi MandyOJE,
Being away for three weeks with no one available to process payroll makes it understandable that you’re looking for a way to prepare the weekly pays in advance.
Payday filing is submitted when each pay run is processed and is based on the actual payment date. IRD requires electronic filing within 2 working days after each payday. Future-dated pay runs aren’t held for later filing, so processing all three in advance could send the filings too early.
The safest option is to have an authorised person process each pay on the normal payday and submit the filing then. They’ll need payroll access in the software and delegated access to the business’s Payroll or Payroll Returns account in myIR.
You can read through these links for reference:
Regards,
Genreve