HMRC Payroll number (RTI PayId)

Follow this article to locate and confirm your HMRC Payroll number. You can find this in your personal tax account and in paiyroll®.

You will have one Payroll number for each employment. That means you have different Payroll numbers for different employers. The format of the number may vary depending on where the Payroll number came from:§

• paiyroll® uses a format comprising a number followed by a slash and a start date, e.g. 13/2026-01-21
• Other payroll systems use different formats, e.g. M308 or 1234

If your company uses works IDs, these are shown on the payslips and are different from your HMRC Payroll number.

HMRC PTA (Employee) #

1. Log in to your HMRC Personal Tax Account (PTA)
2. Click Pay As You Earn (PAYE) > Check current Tax year > View or update employment details
3. Scroll down and look for the Payroll number, e.g. 1234, M308 or 13/2026-01-28. You will see multiple numbers for each employment, and the paiyroll® one will have the slash / in the number, e.g. 13/2026-01-28

paiyroll® (Employee) #

1. Log in to paiyroll®
2. View your Live payslip and note the number in the browser URL. For example, if your URL shows login.paiyroll.com/paiyroll/m/ee/13/livepayslip then your number is 13
3. Take this number, add a slash (/) and your start date in ISO format (Year-Month-Day). This means your Payroll number would be 13/2026-01-21

paiyroll® (Administrator) #

1. Employee > Update to view the employee
2. Note the number in the browser URL. For example, if the URL shows login.paiyroll.com/paiyroll/employee/13/, then the employee number is 13
3. Take this number, add a slash (/), and add the employee’s start date in ISO format (year-month-day). This means the Payroll number is 13/2026-01-21