Section 35 ILCS 5/1407 - Amounts Less than $1(a) Payments, refunds, etc. The Department may by regulations provide that if a total amount of less than $1 is payable, refundable or creditable, such amount may be disregarded or, alternatively, shall be disregarded if it is less than 50 cents and shall be increased to $1 if it is 50 cents or more.(b) Rounding. The Department may by regulations provide that 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.