Title 43 — Taxation of Income

This title shall be known and may be cited as the Arizona income tax act of 1978.

A. It is the intent of the legislature by the adoption of this title to accomplish the following objectives: 1. To adopt the provisions of the federal internal revenue code relating to the measurement of adjusted gross income for individuals, to the end that adjusted gross income…

The provisions of this act shall apply only to taxable years beginning after December 31, 1978.

In this title, unless the context otherwise requires: 1. "Assessment" includes a proposed additional assessment. 2. "Board" means the state board of tax appeals or, if applicable, a division of the state board. 3. "Corporation" means a corporation, joint stock company, bank, insu…

A. For the purposes of computing income tax pursuant to this title, for taxable years beginning from and after December 31, 2024, "internal revenue code" means the United States internal revenue code of 1986, as amended, in effect on January 1, 2025, including those provisions th…

A. Notwithstanding sections 42-1123 and 42-1125, no interest or penalty may be assessed on a nonconformity deficiency if all of the following are true for a taxable year: 1. The taxpayer filed a return and paid the taxes due, relying on the department's published forms and instru…

(Caution: 1998 Prop. 105 applies) A. Notwithstanding any other law, in computing Arizona adjusted gross income or Arizona taxable income for a taxpayer, all ordinary and necessary expenses paid or incurred during the taxable year in carrying on a trade or business as a marijuana …