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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. The Department shall adopt such rules as are necessary to effectuate a program of electronic funds transfer and the requirements of this Section. Any amount which is required to be shown or reported on any return or other document under this Act shall, if such amount is not a whole-dollar amount, be increased to the nearest whole-dollar amount in any case where the fractional part of a dollar is 50 cents or more, and decreased to the nearest whole-dollar amount where the fractional part of a dollar is less than 50 cents. If the retailer is otherwise required to file a monthly return and if the retailer's average monthly tax liability to the Department does not exceed $200, the Department may SB3019 Enrolled LRB104 20255 HLH 33706 b Public Act 104-0468