IFS 2019 annual report on education spending in England: schoolsDate: 02.09.2019
"Since 2009-10, school spending per pupil has fallen by 8% in real-terms in England. The new spending plans (Sept 2019) should be near enough sufficient to reverse these cuts by 2022-23. In addition, the government is continuing to provide compensation to schools for higher pension contributions on top of this. This package represents a large increase in spending per pupil, taking it back to about the same level it was in 2009-10. However, a 13-year period of no net growth in school spending per pupil, after inflation, still represents a significant squeeze on school budgets when considered in historical terms."
On this comprehensive measure of total spending per pupil, there have been cuts of 8% in real terms between 2009–10 and 2018–19. Reversing these cuts would cost £4.7 billion a year by 2022–23.