No new school buildings or school extensions will be started in 2023/24 due to cuts to the education budget.
Work already started will continue but no new building projects will begin.
A scheme to provide devices like iPads and laptops to disadvantaged pupils is also being paused.
It comes as a forum representing more than 50 public bodies, including the Education Authority (EA), said that critical services are being put at risk by the lack of a Stormont budget.
The Public Sector Chairs' Forum has written to Northern Ireland Secretary Chris Heaton-Harris calling on him to provide a manageable way forward for public services.
It called for a strategic approach to "protect services, provide value for money and a strong platform for reform".
