Mass. Gen. Laws ch. 203D, § 15: Obligation to pay money

Section 15. (a) An amount received as interest, whether determined at a fixed, variable or floating rate on an obligation to pay money to the trustee, including an amount received as consideration for prepayment of principal, shall be allocated to income without any provision for amortization of premium.

(b) This section shall not apply to an obligation to which section 18, 19, 20, 21, 23 or 24 applies.