The fiduciary commissioner in stating and settling the account shall allow the fiduciary any reasonable expenses incurred by him as such; and also, except in cases in which it is otherwise provided, a reasonable compensation in the form of a commission on receipts or otherwise. Any executor, administrator, guardian, committee, assignee, receiver, special fiduciary commissioner, or other fiduciary, required by law or by the order of any court or judge to give a bond or obligation as such, may include, as a part of the lawful expense of executing his duties, such reasonable sum paid a company, authorized under the laws of this state so to do, for becoming his surety on such bond or obligation, as may be allowed by the court in which, or the fiduciary commissioner before whom, he is required to account, or a judge of such court, not exceeding, however, the amount authorized by the Insurance Commissioner pursuant to the provisions of article twenty, chapter thirty-three of this code and the legislative rules promulgated thereunder.