Seventh year

A Seventh Year is a student at Hogwarts School of Witchcraft and Wizardry who is in their seventh, and final year of magical education. Seventh Years are typically 17 to 18 years of age. The Seventh Year contains the most important exams given at Hogwarts, the N.E.W.T.s. Students conclude their N.E.W.T. level studies in the seventh year, at the end of which they sit the N.E.W.T. exam pertaining to each of their subjects. A student in the Seventh Year would have the same schedule he or she had in the Sixth Year, and would sit only those classes in which they received O.W.L.s meeting the minimum requirement of the professor for that subject.

Note
It is possible that there is some fashion of a graduation ceremony held for the Seventh Years.

Appearances

 * Harry Potter and the Deathly Hallows