Net income for state individual income tax purposes shall mean federal adjusted gross income as properly computed under the Internal Revenue Code and shall include the adjustments in 701-402. (422) to 701-409. (422). The remaining provisions of this rule and 701-4012. (422) to 701-4079. (422) shall also be applicable in determining net income. This rule is intended to implement Iowa Code section 4227..
Iowa Admin. Code r. 701-40.1