A valve assembly for an injection valve may include a valve body having a central longitudinal axis and a cavity with a fluid inlet portion and a fluid outlet portion, the fluid inlet portion having a step, a valve needle axially movable in the cavity, the valve needle preventing a fluid flow through the fluid outlet portion in a closing position and releasing the fluid flow through the fluid outlet portion in an open position, and an electro-magnetic actuator unit configured to actuate the valve needle and comprising an axially movable armature, the armature including a first armature part fixedly coupled to the valve needle and a second armature part axially movable relative to the first armature part, the second armature part configured such that the second armature part is mechanically decoupled from the first armature part by hitting the step when the valve needle reaches its open position.