Every state school that opened before 2015 received infrastructure grants ranging from $50,000 to $400,000 under the programme announced at the Labour Party conference, but 330 state integrated schools, including Kaitaia's Abundant Life School and Pompallier Catholic School, missed out.
And that breached their agreement with the Crown, according to National MP Nikki Kaye.
"Education Minister Chris Hipkins has said state integrated schools can use attendance dues to modernise or upgrade their buildings. Mr Hipkins clearly doesn't understand his own Government's responsibilities," Ms Kaye said.
"Attendance dues are used for the payment down of debt to get the buildings to a state standard. The Crown has accepted the obligation to maintain integrated school premises in a state of repair comparable to a state school's.
"The integrated schools have a clear case that if the Crown sees the need to increase maintenance funding for state schools then the Government has an obligation to provide funding for state integrated schools, otherwise the government is discriminating.