Provided is a binding apparatus enabling easy removal of a sheet bundle, which has been subjected to binding, from clamping teeth. The binding apparatus includes: a sheet placement portion on which sheets are placed; an alignment unit configured to align the sheets placed on the sheet placement portion; a binding member configured to bind the sheets placed on the sheet placement portion by deforming the sheets without using a staple; and a separating member configured to apply a rotational force to the sheets which are bound by the binding member to separate the sheets and the binding member from each other, the alignment unit and the separating member being constructed by different members.