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National Insurance Recording System 2 (NIRS2)


The Inland Revenue (NI Contributions) Office NIRS computer system has been replaced with NIRS2.   This is because NIRS was ageing and did not support future business and legislative changes, in particular those associated with the 1995 Pension Act.

There have been some delays in delivering the new NIRS2 system, but the majority of the system's functionality is now in place and operational.   The new system is designed to:-

  • collect contributions;
  • hold more than 65 million individual contribution records;
  • calculate contributory benefits;
  • provide data to other government agencies;
  • pay age related rebates to Occupational and Personal Pension schemes.

NIRS2 is one of the biggest IT systems in Europe, with over fourteen million lines of code.