The Zimbabwe Schools Development Association says some school committees and headmasters are looting levy funds by inflating prices of goods and learning materials.
Association president Claudio Mutasa is quoted in the state controlled Herald newspaper as saying the headmasters and school committee members work closely with suppliers who give them kickbacks after schools have made their payments.
Mutasa said his association is handling a lot of corruption cases relating to the looting of levies by school authorities and committees.
Education Minister David Coltart recently said his ministry recorded 30 cases of what he called massive corruption in some schools in the past three months.
Agent Moyo, a senior school teacher in the country, told VOA the looting of levies through fake invoices is common in most schools.
A parent, who can only be identified as Mukanya, said schools are losing millions of dollars in shady deals involving headmasters and school committees.
Former headmaster Paul Ngwenya said schools should introduce tight measures to stop the massive looting of levies.