(a) It shall be the duty of every person subject to the tax imposed by this Chapter to keep and preserve suitable records and such other books and accounts as may be necessary to determine the amount of tax for which he is liable under this Chapter. The books and records must contain, at a minimum, such detail and summary information as may be required by Regulation; or when records are maintained within an electronic data processing (EDP) system, the requirements established by the Arizona Department of Revenue for privilege tax filings will be accepted. It shall be the duty of every person to keep and preserve such books and records for a period equal to the applicable limitation period for assessment of tax, and all such books and records shall be open for inspection by the Tax Collector during any business day.
(b) The Tax Collector may direct, by letter, a specific taxpayer to keep specific other books, records, and documents. Such letter directive shall apply:
(1) only for future reporting periods, and
(2) only by express determination of the Tax Collector that such specific recordkeeping is necessary due to the inability of the Town to conduct an adequate examination of the past activities of the taxpayer, which inability resulted from inaccurate or inadequate books, records, or documentation maintained by the taxpayer.