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more shall make all payments required by rules of the Department by electronic funds transfer. The term "annual tax liability" shall be the sum of the taxpayer's liabilities under this Act, and under all other State and local occupation and use tax laws administered by the Department, for the immediately preceding calendar year. The term "average monthly tax liability" means the sum of the taxpayer's liabilities under this Act, and under all other State and local occupation and use tax laws administered by the Department, for the immediately preceding calendar year divided by 12. Beginning on October 1, 2002, a taxpayer who has a tax liability in the amount set forth in subsection (b) of Section 2505-210 of the Department of Revenue Law shall make all payments required by rules of the Department by electronic funds transfer. Before August 1 of each year beginning in 1993, the Department shall notify all taxpayers required to make payments by electronic funds transfer. All taxpayers required to make payments by electronic funds transfer shall make those payments for a minimum of one year beginning on October 1. Any taxpayer not required to make payments by electronic funds transfer may make payments by electronic funds transfer with the permission of the Department. All taxpayers required to make payment by electronic funds transfer and any taxpayers authorized to voluntarily make payments by electronic funds transfer shall make those payments in the manner authorized by the Department. SB3019 Enrolled LRB104 20255 HLH 33706 b Public Act 104-0468