16.3.SALT - Dividing the Pie: Apportionment and Unitary Businesses

This is Episode 3 of 5 of our accelerated series on SALT (State and Local Taxation). Today we are tackling one of the most mechanically complex but conceptually fascinating areas of State and Local Tax: Apportionment and the Unitary Business Principle. We must answer the question: once a state has the constitutional authority to tax a multistate corporation, exactly how much of that corporation's income can it actually tax?