Mass. Gen. Laws ch. 151A, § 14N
Notwithstanding any other provision of this chapter, the following shall apply regarding the assignment of contribution rates and transfer of accounts:
(b)
(c)
(f) Where the entire business of the transferor has been transferred to the transferee and, at the time of the transfer, there is substantially common ownership, management or control of the transferor and transferee:
(g)
(k) As used in this section the following words shall, unless the context clearly requires otherwise, have the following meanings:—
(7) ''Common ownership, management or control involving a transaction between business entities of different forms'', the ownership, management or control of the transferring employer met the criteria described in paragraph (1), (2), (3), (4), (5) or (6) and the ownership, management or control of the transferee met the criteria described in 1 of the other paragraphs.
''Family member'', a member of a nuclear or extended family, whether by birth or adoption, including, but not limited to, a spouse, parent, child, sister, brother, sister-in-law, brother-in-law, aunt, uncle, niece, nephew, and first cousin.
''Payrolling'', the practice where 1 employer reports its payroll under another employer's account.
''Person'', the meaning given the term by section 7701(a)(1) of the Internal Revenue Code of 1986.
''Taxable wages'', that part of the payroll on which the employing unit is required to make contributions.
''Time of the transaction'', any time within the 12 months preceding the date of the completion of the transaction.
''Any other provision of this chapter related to determining the assignment of a contribution rate'' includes, but not limited to, payrolling.
''Business'', a trade or business or part thereof.
''Common ownership, management or control'', at the time of transaction, the following: