If the Maine income is: The tax is:

Not over $25,000

$25,000 but not over $75,000 $875 plus 7.93% of

excess over $25,000

$75,000 but not over $250,000 $4,840 plus 8.33% of

excess over $75,000

$250,000 or more

excess over $250,000

In the case of an affiliated group of corporations engaged in a unitary business with activity taxable only by Maine, the rates provided in this subsection are applied only to the first $250,000 of the Maine net income of the entire group and must be apportioned equally among the taxable corporations unless those taxable corporations jointly elect a different apportionment. The balance of the Maine net income of the entire group is taxed at 8.93%.

In the case of an affiliated group of corporations engaged in a unitary business with activity taxable both within and without this State, the rates provided in this subsection are applied only to the first $250,000 of the net income of the entire group and must be apportioned equally among the taxable corporations unless those taxable corporations jointly elect a different apportionment. The balance of the net income of the entire group is taxed at 8.93%.

2.__Business activity only within Maine.__For purposes of subsection 1, with respect to a taxable corporation or group of corporations that derive income from a unitary business carried on by 2 or more members of an affiliated group with income from business activity that is taxable only by Maine, "income" means Maine net income.

3.__Business activity within and outside Maine.__For purposes of subsection 1, with respect to a taxable corporation with income from business activity that is taxable both within and without this State, "income" means the corporation's net income.__ The tax amount computed under subsection 1 must then be apportioned under the provisions of chapter 821 to determine the amount of tax imposed on that corporation.