MAGI-based income is defined as income calculated using the same financial methodologies used to determine modified adjusted gross income as defined in section36 B(d)(2)(B) of the Internal Revenue Code, ["Modified adjusted gross income" means adjusted gross income increased by - (a) Any amount excluded from gross income under section 911 of the Internal Revenue Code; (b) Any amount of interest received or accrued by the taxpayer during the taxable year which is exempt from tax; and (c) An amount equal to the portion of the taxpayer's social security benefits (as defined in the Internal Revenue Code Section 86(d) which is not included in gross income under section 86 for the taxable year"], with the following exceptions:
When income is received once a month, the taxable income is the amount to be counted.
When income is received twice a month (usually the first and fifteenth of each month), multiply the taxable wages by two.
When income is received biweekly, multiply the taxable wages by 2.15.
When income is received weekly, multiply the taxable wages by 4.3.
10- 144 C.M.R. ch. 332, § 17-2