To add to the list of failed (at least initially) payroll systems, we have New Zealand's Ministry of Education and their Novopay system: https://en.wikipedia.or

To add to the list of failed (at least initially) payroll systems, we have New Zealand's Ministry of Education and their Novopay system: https://en.wikipedia.org/wiki/Novopay https://en.wikipedia.org/wiki/Novopay It cost $180mm and was borderline non-functional, and then cost another $40mm to fix to its now functional state. The same company that did Novopay also did the payroll for NZ Post and had similar issues.