Up to 1600 teachers did not report complaints through official channels over mistakes with their pay administered through the Novopay pay roll system, according to a union survey.
The Post Primary Teachers Association surveyed 4500 teachers for the pay period ending February 20 and found 36 per cent had not formally reported errors with their pay because they were either "too embarrassed" or feared putting school administrators under more pressure.
PPTA general secretary Kevin Bunker said government figures being released fortnightly showed a much lower rate of errors.
Figures released by PricewaterhouseCoopers today for the period to March 6 showed 1.9 per cent of staff and 447 schools had officially reported problems.
Minister in charge of Novopay Steven Joyce today issued the latest figures from PwC, which showed the number of complaints received over school staff pay administered through Novopay had fallen.