Nearly half a million children could be starting their GCSEs this week without getting any support from the flagship Covid catch up scheme.
Labour analysis found that 490,800 Year 11 pupils were estimated to have missed out on help from the National Tutoring Programme this year.
Boris Johnson promised personal tutoring provision to help children catch up after the pandemic wreaked havoc on their learning.
But the roll out has been criticised for failing to reach poorer pupils who were already behind their wealthier classmates before the pandemic hit.