(1) A local exchange company, radio communications service company, or interconnected voice over internet protocol service company must file tax returns on a cash receipts or accrual basis according to which method of accounting is regularly employed in keeping the books of the company. A company filing returns on a cash receipts basis is not required to pay tax on debt subject to credit or refund under subsection (2) of this section.
(2) A local exchange company, radio communications service company, or interconnected voice over internet protocol service company is entitled to a credit or refund for state and county 911 excise taxes previously paid on bad debts, as that term is used in 26 U.S.C. Sec. 166, as amended or renumbered as of January 1, 2003.