Personal Public Service Number
The Personal Public Service Number (PPS No) (Irish: Uimhir Phearsanta Seirbhíse Poiblí, or Uimh. PSP) is an identifier issued by Client Identity Services, Department of Social and Family Affairs on behalf of the Minister for Social and Family Affairs in Ireland. The number was previously known as the Revenue and Social Insurance Number (RSI No) until 1998 and was issued first in April 1979 as a replacement for the separate PAYE Number and Social Welfare Insurance Number which had been used for income tax and social welfare purposes respectively until then. The PAYE Number was issued by the Revenue Commissioners and these numbers were transferred to the RSI No system as a basis for the unified system. The format of the number is a unique alphanumeric in the general form 8765432A.
