20 Pa.C.S. § 8163

Subject to sections 8161 (relating to mandatory disbursements from income) and 8162 (relating to mandatory disbursements from principal), a trustee may, in the trustee's discretion, allocate to income or principal or partly to each ordinary expenses incurred in connection with the administration, management or preservation of trust property and the distribution of income, including, but not limited to, the compensation of the trustee and of any person providing investment advisory, custodian or income tax return preparation services to the trustee.