An unwelcome bonus culture is creeping into head teachers' pay, diverting funds from the classroom, a teachers' leader is warning.
Head of the ATL union Dr. Mary Bousted is critical of what she says are highly paid school leadership roles which have little to do with children's education.
Every pound of bonus paid above school leadership pay scale was a pound less for books and equipment, she says.
The government said the level of pay should reflect heads' responsibilities.
'Super duper heads'
Some school governing bodies have advertised six figure salaries to attract good candidates to run schools and others are reported to have offered golden hellos.
Speaking at the Association of Teachers and Lecturers fringe at the TUC Congress in Liverpool, Dr Bousted said her union did not object to heads being paid a fair wage for a demanding and increasingly insecure job.