PAY INFRACTION TRAFFIC TICKET: If you intend to pay the amount due on your case, you may do so on or before the date that appears at the bottom of your ticket. Final payment date printed on the bills.October, Treasurer-Tax Collector mails out original Secured property tax bills. The property tax deadline, December 10th, is almost here! TRY THESE QUICK AND EASY WAYS TO PAY: Payment Options. Online. The due date to file your California state tax return and pay 5 any balance due is April 15, 2025.