Ariz. Rev. Stat. § 42-1125
D. If a person fails to pay the amount shown as tax on any return within the time prescribed, a penalty of one-half of one percent, not to exceed a total of ten percent, shall be added to the amount shown as tax for each month or fraction of a month during which the failure continues, unless it is shown that the failure is due to reasonable cause and not due to wilful neglect. If the department determines that the person's failure to pay was due to reasonable cause and not due to wilful neglect and that a payment agreement pursuant to section 42-2057 is appropriate, the department shall not impose the penalty unless the taxpayer fails to comply with the payment agreement. If the taxpayer is also subject to a penalty under subsection A of this section for the same tax period, the total penalties under subsection A of this section and this subsection shall not exceed twenty-five percent. For the purpose of computing the penalty imposed under this subsection:
P. Unless due to reasonable cause and not to wilful neglect:
3. A person, when filing any return, statement or other document without compensation on behalf of a taxpayer, who fails to include that person's own taxpayer identification number and the taxpayer's identification number is not subject to a penalty.
No other penalty under this section may be imposed if the only violation is failure to provide taxpayer identification numbers.
T. Penalties shall not be assessed under subsection D of this section on additional amounts of tax paid by a taxpayer at the time the taxpayer voluntarily files an amended return. This subsection does not apply if:
V. A manufacturer or importer or a distributor, as defined in section 42-3001, who knowingly and intentionally sells or possesses cigarettes with false manufacturing labels or cigarettes with counterfeit tax stamps, or who obtains cigarettes through the use of a counterfeit license, shall pay the following penalties:
X. Notwithstanding subsection A of this section: