1. Senior Citizen Homeowners' Property Tax Exemption. The Senior Citizen Homeowners' Property Tax Exemption is available to homeowners who are at least 65 years old and meet certain income requirements.
If you own and occupy your home as your principal place of residence on January 1, you may apply for an exemption of $7,000 off your assessed value for an annual savings of approximately $70 on your property taxes. New property owners will automatically receive an exemption application.
2026 REQUEST FOR VALUE REVIEW (PROP 8) California State Revenue and Taxation Code, Section 51 authorizes the Assessor to temporarily lower the assessed value of any real property when it is greater than the market value as of January 1, lien date.
To obtain the exemption for a property, you must be its owner or co-owner (or a purchaser named in a contract of sale), and you must live in the property as your principal place of residence. You must also file the appropriate exemption claim form with the Assessor.
What is a Homeowner's Exemption? If you own and occupy your principal place of residence on January 1, you may apply for a Homeowner's Exemption that would exempt $7,000 of your home's assessed value from taxation. This would result in a savings of approximately $70 per year on your property tax bill.
Contra Costa County sales tax details The minimum combined 2025 sales tax rate for Contra Costa County, California is 8.75%. This is the total of state, county, and city sales tax rates. The California sales tax rate is currently 6.0%. The Contra Costa County sales tax rate is 0.25%.
Use Form 843 to claim a refund or request an abatement of certain taxes, penalties, additions to tax, interest, and fees. Do not use Form 843 to request an abatement of income, estate, or gift tax. Do not use Form 843 to request a refund of income tax or Additional Medicare Tax.