Private schools in Victoria would receive an extra $644 million in state and federal funding over six years if Victoria signs up to the education reforms, according to long-awaited figures released by Prime Minister Julia Gillard.

Catholic and independent schools will receive the federal share of this extra money from next year even if Victoria does not sign up to the plan, although state schools, which educate the majority of disadvantaged students, would miss out if Premier Denis Napthine holds out.

Funding for Victorian schools.

This is because the new funding model, which is expected to pass the Senate within weeks, will affect Catholic and independent schools regardless of whether the states and territories agree to it because the Commonwealth is the primary public funder of non-government schools.

Dr Carmen Lawrence, a member of the Gonski panel, said it would be ''unthinkable'' if states did not sign up and the extra money flowed only to the non-government sectors that needed it the least.