Once you’ve set up your account, you can sign up for PAYE for Employers. You get your PAYE and Accounts Office references, and an activation code. Requesting a username and password from HMRC can take up to seven days and you must activate it within 28 days.
When you first log into payroll, you have options to set up your company and payroll information.
Choose one of the following options:
Migrate payroll data
Select if you’re transferring from another system part-way through the current tax year.