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%.
Copies of previous (up to 11 years) and current tax bills can be found on line by going to Account Lookup. Taxpayers may also call our office, 925-608-9500 and/or email Tax Information us to request a duplicate tax bill.
In California, all properties are subject to a basic tax rate of 1% based on their assessed value. This value is set by the county assessor when the property is bought or newly built. For example, if your assessment is $500,000, the basic property tax you owe would be $5,000 annually.
How is my tax bill calculated? The assessed value from the Assessor's Office is multiplied by the tax rate to get the ad valorem tax amount. The remaining amount of the bill consists of special assessments and late penalties, if applicable.
New property owners will usually receive an exemption application enclosed with their notice of supplemental assessment, approximately 90 to 120 days after the deed is recorded. If you acquired the property more than 120 days ago, and have not received an application, please call (925) 313-7481 for an application. 9.
The median property tax rate in Contra Costa is 1.36%, which is significantly higher than both the national median of 0.99% and the California state median of 1.21%. With the median home value in Contra Costa, the typical annual property tax bill reaches $6,706, far exceeding the national median of $2,690.
Eligibility Requirements: Homeowners must be age 55 or better (For married couples, only one spouse must be 55 or better to qualify.) Homeowners must have sold their former residence within 2 years of purchasing the replacement property. Both the former and replacement properties must be the owner's primary residence.
Homeowners' Exemption versus Homestead Exemptions With an approximate 1% property tax rate, the exemption provides roughly a $70 annual saving off your property taxes. Homestead Exemption is a civil code provision, which may protect part of the homes equity from creditors.
Homeowner's Exemption If you own and occupy the property as your principal place of residence, you are eligible for a Homeowners' Exemption of $7,000 in assessed value for that property. The exemption will reduce the annual property tax bill by at least $70 each year.
Complete form BOE-266, Claim for Homeowners' Property Tax Exemption. Obtain the claim form from the County Assessor's office where the property is located. Submit the completed form to the same office.