December 10, 2018 is the DELINQUENT DATE for Secured Property taxes, the Tax Collector’s Office may experience a high volume of calls through December 10th. If you get a busy signal, please try again later. Keep in mind, the Call Center is open from 9:00 AM to 4:00 PM. However, an online payment system atwww.cctax.us is available until midnight of December 10th to look up and pay property taxes. You may also make payments on the Tax Collector’s automated phone system by dialing 925-957-5280. Taxpayers are always encouraged to pay their property taxes by the DUE DATE to avoid late-payment penalties. Please refer to the installment coupons on your tax bill for dates and additional information