We study induced additive actions on projective hypersurfaces, i.e. effective regular actions of the algebraic group \(\mathbb G_a^m\) with an open orbit that can be extended to a regular action on the ambient projective space. It is known that the degree of a hypersurface \(X\subseteq \mathbb {P}^n\) admitting an induced additive action cannot be greater than n and there is a unique such hypersurface of degree n. We give a complete classification of hypersurfaces \(X\subseteq \mathbb {P}^n\) admitting an induced additive action of degrees from \(n-1\) to \(n-3\) .
