Q: When are property taxes due in Contra Costa County?
A: Property taxes are due in two installments - first installment due February 1st (delinquent April 10th) and second installment due November 1st (delinquent December 10th).
Q: How do I apply for the homeowner's exemption?
A: Apply through the Contra Costa County Assessor's Office online, by mail, or in person. You must own and occupy the property as your primary residence. The $7,000 exemption reduces your assessed value, saving approximately $70-84 annually.
Q: Can I appeal my property tax assessment?
A: Yes, you can file an appeal with the Contra Costa County Assessment Appeals Board between July 2nd and September 15th if you believe your assessment is too high. You'll need evidence such as comparable sales or property condition issues.
Q: What happens if I pay my property taxes late?
A: Late payments incur a 10% penalty, plus 1.5% interest per month. If taxes remain unpaid for five years, the property may be sold at a tax auction.
Q: How is my assessed value determined?
A: Initial assessed value is set at purchase price, then can increase maximum 2% annually under Proposition 13. Major improvements or ownership changes trigger reassessment to current market value.
Q: Do I owe supplemental taxes if I refinance my mortgage?
A: No, refinancing doesn't trigger supplemental taxes since there's no ownership change. Only sales, transfers, or new construction create supplemental tax bills.
Q: Can I pay property taxes online?
A: Yes, the Contra Costa County Treasurer-Tax Collector offers online payment options through their official website, accepting electronic checks and credit cards (fees may apply for credit cards).
Q: What exemptions are available besides the homeowner's exemption?
A: Veterans with disabilities may qualify for a veteran's exemption, and there are exemptions for churches, welfare organizations, and senior citizens meeting specific income requirements. Contact the Assessor's Office for eligibility requirements.
Q: Why did my property taxes increase if Proposition 13 limits increases to 2%?
A: While assessed value increases are capped at 2%, your tax rate may increase due to new voter-approved bonds, assessments, or parcel taxes. Also, improvements to your property can trigger reassessment above the 2% cap.
Q: What should I do if I receive a supplemental tax bill?
A: Supplemental bills are due within 30 days of the bill date and represent additional taxes owed for the current fiscal year. Pay promptly to avoid penalties, and contact the Tax Collector's Office if you have questions about the amount.
