56 Ill. Adm. Code 300.720
Written Agreement Authorizing Deductions
Section 300
Section 300.720 Written
Agreement Authorizing Deductions
a) Any written agreement between employer and employee permitting
or authorizing deductions from wages or final compensation must be given freely
at the time the deduction is made. In the case of cash advances, the agreement
may be made either at the time of the deduction or at the time of the advance
itself.
b) When a deduction is to continue over a defined duration of
time and the written agreement provides for that defined duration of time and provides
for the same amount of deduction each pay period, the agreement shall be
considered to be given freely at the time the deduction is made. No agreements
for a defined duration of time shall last longer than six months.