Cash, checks, money orders and cashier checks are all accepted methods of payment. Please do not send cash when mailing your payment. Credit cards and electronic checks are accepted over the phone at 1-877-690-3729 or via the website and click on Pay Taxes. The Jurisdiction Code for Peoria County is 2305. A convenience fee based on the amount of your taxes will be charged for the use of this service and will be disclosed prior to the completion of your transaction. Credit cards and electronic checks are not accepted in the Treasurer's office.