SECTION 1. Paragraph (a) of Part B of Section 3 of chapter 62 of the General Laws is hereby amended by inserting after subparagraph (19) the following new subparagraph:-

(20) (a) An amount equal to premiums paid or accrued for qualified mortgage insurance by the taxpayer during the taxable year in connection with acquisition indebtedness with respect to a primary residence.

(b) The amount under clause (a) shall be reduced (but not below zero) by 10 percent of such amount for each $1,000 that a persons adjusted gross income for the taxable year exceeds $100,000.

(c) Clause (a) shall not apply with respect to any mortgage insurance contracts issued before January 1, 2020.

Section 2. Section 1 of chapter 62 of the General Laws, as so appearing, is hereby amended by inserting after paragraph (r) the following new paragraph:-

(s) “Qualified mortgage insurance,” shall mean private mortgage insurance, as defined within 12 U.S.C. 4901, or commonly referred to as insurance that reimburses a mortgage lender if the buyer defaults on the loan and the foreclosure sale price is less than the amount owed the lender.