Changes to the way schools are funded have resulted in Priory School in Lewes having had to deal with core funding cuts of around £90,000.
There will be further reductions to the core budget when the revised formula is implemented, the school warned.
Obviously no organisation can simply absorb this level of financial disruption and therefore a strategic response is necessary, a statement said.
Priory has been working on a long-term fundraising strategy that will in time turn ‘funding uncertainty’ into ‘funding certainty’.
The first part of this strategy was launched yesterday (Thursday) when Priory wrote to the parents and guardians of all students asking them to consider making a small monthly donation to the school.
Its statement said: “We appreciate that many people will feel that it is entirely the responsibility of the state to fund state schools to an adequate level and we fully share this sentiment.
“However, times are changing and it is our responsibility to protect and improve the learning environment that we offer to our students.
“We have major ambitions over the next few years to enhance and improve facilities and standards right across the whole school, but recent cuts have meant that we have had to put these on hold.
“For example, one major ambition is to build new IT suites so that we can offer students far greater access to even better
Priory School’s statement said: “We strongly believe that the onus is upon us as a school, and the Lewes area as a community, to protect Priory from the funding storm ahead and we shall do all in our power to achieve this.”
It has pledged to keep parents and guardians updated on the success of the monthly donations initiative and the launch of future funding projects.
Local authority funding for the school is distributed by East Sussex County Council.
Priory is a leading comprehensive with Arts, Language and Science College status, rated ‘Outstanding’ by Ofsted.
There are approximately 1,150 students on the roll. Visit www.priory.e-sussex.sch.uk