An information input assistance device includes an identification unit, a generation unit, and a processing unit. The generation unit acquires attribute information corresponding to a user identified by the identification unit from a first memory, acquires rule information corresponding to a transmission destination of input information and a class of input information from a second memory, and generates the input information corresponding to the identified user on the basis of the acquired attribute information and the acquired rule information. The processing unit performs processing that transmits the input information generated by the generation unit to the transmission destination.