Suffolk schools could be hit with an £11.5m funding decrease over the next two years, according to latest estimates from education unions.

The website School Cuts, launched by the National Union of Teachers (NUT) and the Association of Teachers and Lecturers (ATL), has compiled estimated figures for each school on how much its funding will be reduced, based on school block funding allocations for 2015/16 and inflation estimates until 2020.

The data revealed that across Suffolk, the budget could reduce by £11.5m by 2020 – with 232 of the county's 295 schools facing cuts.

Graham White, Suffolk National Education Union press officer and national executive member for Suffolk, said: 'The government despite its protestations is not valuing education for our children. It is forcing schools to make cuts which will directly impact in a negative way on our children's education. The worst hit children will be those most in need. Schools have been facing cuts for some time and there are no more 'efficiency savings' to be made now.'

Gordon Jones, Suffolk County Council's cabinet member for education, said it was a concern with budgets tighter than ever before.

He added: 'The under-funding of Suffolk schools has been consistently challenged at a national level by the council throughout its current administration and as an active member of the F40 group – the 40 lowest funded councils in England for schools – we have tirelessly campaigned with ministers and MPs on a national and local level for fairer funding for Suffolk pupils and will continue to do so.'

According to the estimates, the county could face a reduction equivalent to £126 per pupil.

However, the Department for Education has disputed the figures. They said schools across Suffolk will see a funding increase of 4.7pc – more than £18.3m – through their formula.

Minister for School Standards Nick Gibb said: 'The unions' figures are fundamentally misleading. They are based on historical data and do not reflect the situation in our schools today.

'They also ignore the fact that schools funding is driven by pupil numbers and, as pupil numbers rise, the amount of money schools receive will also increase.'

The department's new formula will allocate a cash increase of at least 1pc per pupil to every school by 2019-20, Mr Gibb added.