Public education at all levels is mainly financed by the government, either directly or through allotments to Local Authorities or Local School Boards (Σχολικές Εφορείες). Private institutions mainly raise their funds through tuition fees. 

Receiving external money is not permitted for public schools in the pre-primary, primary and secondary level of education. Their only source of finance is the national budget and the management of school assets and property by the respective Local School Boards. Public universities may receive gifts, grants and funding from outside sources other than the national budget. Private institutions at all levels are not in any way restricted from receiving external funding.

Financial Statistics of Education
Government expenditure on education stands, for the financial year 2018, at 13,6% of the government budget and 5,8% of the gross domestic product.
Public expenditure on all levels of education was €1.250,9 million in 2018 and it demonstrated an increase of 1,9% in comparison to 2017, where public expenditure on education amounted to €1.227,6 million. Current expenditure increased by 5,4%, while capital expenditure decreased of 41,9%.
pre-school and pre-primary education absorbed 5,3% of total public expenditure on education, primary 28,3%, secondary general and technical 40,0%, special education -4,2%, tertiary 20,0%, non-formal education 2,0% and the educational programmes abroad 0,2%.
The cost per student for public education in 2018, measured in terms of current expenditure, €5.226 for pre-school and pre-primary, €6.499 for primary, €10.648 for secondary general, €13.205 for secondary technical and €11.113 for tertiary education.