it is against the law to commit adultery in the state of Arizona. Both parties can spend 30 days in jail pay a $500 fine and/or a year on probation. 13-1408. Adultery; classification; punishment; limitation on prosecution A. A married per who has sexual intercourse with another than his or her spouse, and an unmarried per who has sexual intercourse with a married per not his or her spouse, commits adultery and is guilty of a class 3 misdemeanor. When the act is committed between parties only one of whom is married, both shall be punished.