If a taxpayer whose personal property taxes have been assessed in error reports the error to the taxing authority before receiving a notice of proposed correction, no penalty may be applied and the tax roll shall be corrected to allow property taxes for the period affected by the error to be levied and collected.
A.R.S. § 42-16253
Reporting personal property tax error before notice of proposed correction is issued
Official source: Arizona State Legislature. Reproduced from public-domain Arizona statutes; confirm against the official source for the current text. Not legal advice.