State education in Spain is free and compulsory from the age of six to sixteen. The current education system is regulated by the 2006 educational law, LOE (Ley Orgánica de Educación), or Fundamental Law for the Education. In 2014, the LOE was partially modified by the newer and controversial LOMCE law (Ley Orgánica para la Mejora de la Calidad Educativa), or Fundamental Law for the Improvement of the Education System, commonly called Ley Wert (Wert Law). Since 1970 to 2014, Spain has had seven different educational laws (LGE, LOECE, LODE, LOGSE, LOPEG, LOE and LOMCE).

The levels of education are preschool education, primary education, secondary education and post-16 education. In regards to the professional development education or the vocational education, there are three levels besides the university degrees: the Formación Profesional Básica (basic vocational education); the Ciclo Formativo de Grado Medio or CFGM (medium level vocation education) which can be studied after studying the secondary education, and the Ciclo Formativo de Grado Superior or CFGS (higher level vocational education), which can be studied after studying the post-16 education level.

The Programme for International Student Assessment coordinated by the OECD currently ranks the overall knowledge and skills of Spanish 15-year-olds as significantly below the OECD average of 493 in reading literacy, mathematics, and science.