Tuition is due on the 1st of every month. Payments can be made in any CLS school office or the accounting office. Each family has until the fifteenth (15th) of the month before there is a late fee assessed. Please make sure the account number is on all payments. For any specific questions regarding your account, please contact the accounting office at 815-877-8000 ext. 255. Accounting Office Hours: Monday – Friday, 8:30am – 5:00pm.