The Department of Education has announced that schools will only get 90% of special needs teaching hours that they would normally be entitled to, from September.
According to the Department of Education the numbers of teachers will increase in September by 350 on last year.
INTO has called it yet another cut to affect the most vulnerable.
The union says many families will be hit on the double as home supports for children with special needs are cut too.
Meanwhile, the Irish Primary Principals' Network said it is 'dismayed' with the news.
It said the Resource Teachers for Travellers, the Visiting Teachers for Travellers and the Co-ordinators supporting Disadvantage in Rural Areas have already been abolished.
The organisation's president, Pat Goff said it is time for the Government to refocus its resources to the most vulnerable in our schools and seek these savings elsewhere in the system.
