Secured Property Annual tax bills are prepared and mailed by the Treasurer and Tax Collector in October of each year. The first installment of your property tax bill is due on November 1 and becomes delinquent after 5:00 p.m. on December 10. The second installment of your tax bill is due February 1 and becomes delinquent after 5:00 p.m. on April 10. Each installment is subject to penalties if not received by the Treasurer and Tax Collector by the aforementioned dates and the second installment is also subject to costs in addition to penalties if not paid timely. Any questions please call (530) 458-0440