K.S.A. 19-517: Fee for notifying person of amount of taxes or for accepting payment through mail.

That it shall be unlawful for any county treasurer to make, demand or retain any fee for notifying any person or his agent of the amount of his personal or real property tax, and it shall be unlawful for any county treasurer to demand or retain any fee for accepting payment through the mail of any personal or real property tax of any person.