In a facsimile machine having the function of authorization by the authorizer, an authorizer determining apparatus that can alleviate workload on the authorizers is provided, and a facsimile machine having such an authorizer determining apparatus is also provided. The authorizer determining apparatus for the facsimile machine includes a candidate selecting unit selecting, based on a sum of condition values of a plurality of attributes (such as sender, destination, and format of document to be transmitted) selected in advance for a facsimile transmission, a set of authorizer candidates consisting of possible authorizers having condition values not smaller than the sum, and an authorizer determining unit for determining an authorizer candidate having the lowest condition value among the set of authorizer candidates.