Law360 ADVERTISEMENT By Paul Williams · August 4, 2021, 6:42 PM EDT The Multistate Tax Commission adopted model legislation Wednesday that state legislatures can copy to carry out the so-called Finnigan apportionment method, which treats members of a business group as one taxpayer... To view the full article, register now. ADVERTISEMENT × Sign up now for free access to this content Enter your details below and select your area(s) of interest to receive Law360 Tax Authority daily newsletters Email (NOTE: Free email domains not supported) First Name Phone Number (###-###-####) PLEASE NOTE: A verification email will be sent to your address before you can access your trial.