(1) A tax required to be paid by a trustee based on receipts allocated to income must be paid from income.
(2) A tax required to be paid by a trustee based on receipts allocated to principal must be paid from principal, even if the tax is called an income tax by the taxing authority.
(3) A tax required to be paid by a trustee on the trust's share of an entity's taxable income must be paid: From income to the extent that receipts from the entity are allocated only to income;
(4) From principal to the extent that receipts from the entity are allocated only to principal;
(5) Proportionately from principal and income to the extent that receipts from the entity are allocated to both income and principal; and
(6) From principal to the extent that the tax exceeds the total receipts from the entity.
(7) After applying subsections (a)-(c), the trustee shall adjust income or principal receipts to the extent that the trust's taxes are reduced because the trust receives a deduction for payments made to a beneficiary.