Don H. Gaekle
Don H. Gaekle, Assessor

2016-17 Tax Roll Completed

We are pleased to announce the completion of the annual Property Assessment Roll for 2016-17. The assessment roll has now been turned over to the Auditor-Controller's office where tax rates will be applied to the assessed roll values in order to calculate the tax amounts due. The Treasurer-Tax Collector will send out property tax bills within the next few months.

This year's countywide assessment roll increase of 5.88% is the result of continued overall improvement in the local real estate market. As a result, some owners may see significant increases in their assessed value due to increases in market value. For more information, click on the following link: "About Value Increases." Property owners may review their 2016-17 assessed value information by going to this link: Assessor Value Notice Inquiry or by accessing the same link from the Assessor “Services” drop down menu.

Should owners have questions regarding their assessed value(s) they are encouraged to contact the Assessor’s office for an explanation or to request an informal review. If property owners are unable to resolve their concerns in discussions with the Assessor’s office, they may file a formal Assessment Appeal by contacting the Clerk of the Board of Supervisors. The period for filing appeals of 2016-17 assessed values is July 2 to November 30, 2016.

As the elected Assessor of Stanislaus County it is my sworn responsibility to uphold the State's Property Tax Laws. Our website is an ongoing part of my commitment to keeping you informed of your rights and responsibilities as property owners in Stanislaus County.

Thank you,
Don H. Gaekle

About Us

Who We Are

The Assessor is primarily responsible for preparing an annual assessment roll upon which property tax revenues are generated. The County, Public Schools, Cities, Redevelopment Agencies, and Special Districts all rely on this revenue for funding operations.

What We Do

All property, excluding supplies, movable equipment, boats, and aircraft, are assessed based upon their market value when purchased or newly constructed. The Assessor determines the market value for the ownership changes and new construction. The supplies, movable equipment, boats, and aircraft are assessed based upon their annual market value on January 1 of each year. The Assessor also maintains property parcel maps. These maps are available to the public in the Assessor's Office or at the County's web site ( The property tax assessment roll, property ownership information, and some property characteristics are also available to the public at the Assessor's Office.

What We Offer

The mission of the Stanislaus County Assessor's office is to produce a fair, accurate and timely assessment roll while providing excellent customer service.
Fee-based annual data subscriptions are also available. See "Assessor Services" for more information.
The Assessor's Office is open Monday-Friday, 8:30 am to 4:30 pm.