The costs and fees, exclusive of fees of the guardian ad litem incident to any partial or final settlement by any guardian subject to the provisions of this chapter, shall be taxed in the amounts provided by the general statutes for like services, but there shall not be taxed or charged against the estate of the ward, on any partial settlement, any amount in excess of one half of one percent of the amount of money with which the guardian is chargeable on the settlement as having received since the last preceding settlement and with which the guardian has not previously been charged; provided, that the limitations contained in this section as to costs and fees shall not affect the commissions and fees otherwise payable to the general guardian and to guardians ad litem.