UK Taxation Parameters

Payroll Administrator Guide

Version
R2025.2.1
ft:lastEdition
2025-12-01
UK Taxation Parameters

Taxation parameters for UK legal entities are configured in the Taxation Parameters tab of Org Set-up > Org Payroll Set-up > Organisation. The reference numbers configured in the Taxation Parameters tab are required to send NI and tax information to HMRC and the Centralised Attachment of Earnings Payments (Caps).

Taxation parameters in UK legal entities
Field Description
HMRC Office Number Three-digit reference number that is issued by the HMRC and used to identify the organisation.
PAYE Employer Reference Number

Reference number that is issued by the HMRC and used to identify the employer's PAYE.

Note: The PAYE Employer Reference number and HMRC Office number are combined, separated by a slash, and shown in employee payslips. For example, 123/AB1234.

Employer Reference Number (ERN) 12-character reference number that is issued by the Centralised Attachment of Earnings Payments (Caps) office and used to identify the organisation.
Employer Account Office 13-character reference number that is issued by the HMRC and used to identify the accounts office that is required to make payments to the HMRC.
Corporation Tax Reference 10-digit reference number, sometimes referred to as the "Company Unique Taxpayer Reference" number, that is issued by the HMRC. The number is used to identify the organisation for tax purposes. The number is shown in the 'Notice to deliver a company Tax Return' (form CT603), and is required for RTI reporting.