The Real Time Information (RTI) Pay ID is the unique employee reference for your company. It is included in your submissions to HMRC.

It ensures that the payroll data submitted for each employee is correctly linked to their tax and National Insurance records.

An employee must have an RTI Pay ID submissions to include them. How you enter or generate this depends on your situation.

Employee is a new starter:

• Leave this blank when creating the employee record. Payroll assigns them an RTI Pay ID when you submit a full payment submission (FPS)

Transferring from another payroll system part-way through a tax year:

• Enter the employees existing RTI Pay ID when you set up the employee in Sage Payroll.

If you can't access an employees RTI Pay ID, read Don't have an RTI Pay ID?