Recent figures that suggested private schools are cutting their expenditure are "total nonsense", according to one expert.
A representative from the Independent Schools Association (ISA) commented that a report by the Association of Teachers and Lecturers (ATL) was false and that schools are doing all they can to maintain levels of education and provide benefits to staff.
Neil Roskilly, chief executive officer of the ISA, said: "Schools have to invest in the future because they know it is a competitive world and they are spending as much as they have ever done."
He added that what may be recognisable is that parents may be struggling to pay for their children's private education and could therefore be turning to other funding means rather than their own personal finances.
Schools are not profit-making ventures and are more interested in providing a profitable service to the younger generations, according to Mr Roskilly.
The ATL claimed that independent school staff are feeling the effects of the economic downturn, with 36 per cent of teachers and 40 per cent of non-academic and support staff not getting a pay rise in 2011.