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Portola Valley, Santa Clara County, California Property Taxes

  • Median Portola Valley, CA effective property tax rate: 1.19%, significantly higher than the national median of 1.02%, but lower than the CA state median of 1.21%.

  • Median Portola Valley, CA home value: $2,623,141

  • Median annual Portola Valley, CA tax bill: $29,288, $26,888 higher than the national median property tax bill of $2,400.

How are property taxes in Santa Clara calculated?

Property taxes in Portola Valley, CA are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding Portola Valley’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Portola Valley, knowing local tax details benefits homeowners and investors.

Last Updated March 1, 2025

Portola Valley, Santa Clara County, California Property Tax Bill Calculator

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

1.19%

Estimate Property Tax Bill

$31,215

$28,967

SAVE WITH OWNWELL

$1,102

Average Tax Savings

Ownwell’s Portola Valley Property Tax Bill Calculator empowers homeowners, real estate investors, and potential buyers to estimate their annual property taxes in Portola Valley with just two data points. By entering your property's estimated assessed value, our calculator applies Portola Valley’s median effective tax rate to accurately estimate your property tax bill. Note that your property's assessed value — determined by your county — reflects any exemptions you may have, ensuring a more precise calculation for your property tax obligations. This insightful tool helps you understand potential tax liabilities and highlights how Ownwell can assist in reducing property taxes in Santa Clara County. For those interested in more localized information, please scroll down to explore city-level trends!

Property Tax Rates Across Portola Valley, Santa Clara County, California

Local government entities are responsible for setting tax rates, and these can vary significantly within a state. This variation is due to the annual process where each county estimates the budget needed to provide essential services and divides this by the total value of all taxable property within its jurisdiction. This calculation determines the property tax rate. While voting and legislation play roles in setting these rates and budgets, this is essentially how the process unfolds each year.

In Portola Valley, located in Santa Clara County, the effective property tax rate is a key figure to consider when comparing it to other cities in California and the national median. The property tax rate in Portola Valley aligns with some of the highest and lowest median tax rates within its zip code. This highlights the nuanced nature of property taxation where even within the same area, rates can be similar. Understanding these rates in relation to the national median can provide valuable insights for property owners seeking to manage their tax liabilities effectively.

Property Tax Rates Across Portola Valley, Santa Clara County, California

Source: Ownwell

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1.14%

1.41%

1.68%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Portola Valley Taxx Rate

1.19%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Santa Clara County Taxx Rate

1.31%

Median Effective California Tax Rate

1.21%

Median Effective United States Tax Rate

0.99%

Property Tax Rates Across Portola Valley, Santa Clara County, California

Zip10th Percentile25th PercentileMedian Tax Rate75th Percentile90th Percentile
940281.17%1.17%1.19%1.21%1.28%

Source: Ownwell

Property Tax Assessment Values Across Portola Valley, Santa Clara County, California

When examining property taxes in Portola Valley, CA, understanding the distinction between "market value" and "assessed value" is crucial. The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Santa Clara County appraisal district estimates the market value for tax purposes. The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

In Santa Clara County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of April. Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Portola Valley. For example, the median home price in Portola Valley is $2,623,141, with tax bills ranging significantly across the county. Zip code 94028 has the highest median home price at $2,623,141.

Property Tax Assessment Values Across Portola Valley, Santa Clara County, California

Source: Ownwell

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$225,198

$1,529,133

$2,833,068

Median Portola Valley Market Value

$2,623,141

Median Santa Clara County Market Value

$683,381

Median California Market Value

$378,421

Median United States Market Value

$244,900

Property Tax Assessment Values Across Portola Valley, Santa Clara County, California

Zip10th Percentile25th PercentileMedian Home Price75th Percentile90th Percentile
94028$527,099$982,944$2,623,141$7,110,558$10,344,428

Source: Ownwell

Property Tax Bills Across Portola Valley, Santa Clara County, California

In Portola Valley, Santa Clara County, CA, property tax bills are calculated based on the assessed value of a home, which is determined by the local assessor's office. This value is then multiplied by the local tax rate to determine the tax bill. With a median home price of $2,623,141, homeowners in Portola Valley can expect significant tax bills. For example, the tax bill at the 25th percentile is $11,131, while at the 75th percentile it rises to $81,901, and at the 90th percentile, it reaches $119,363. Comparatively, the national median property tax bill is $2,400, highlighting the higher burden faced by homeowners in this area. High property taxes can affect homeowners by increasing the cost of homeownership and potentially impacting resale values. Ownwell can assist homeowners by identifying potential exemptions and appealing assessed values to ensure they are fair, potentially reducing their tax burden. This service can lead to substantial savings, making homeownership more affordable in this high-cost area.

Property Tax Bills Across Portola Valley, Santa Clara County, California

Source: Ownwell

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$2,590

$17,875

$33,160

Median Portola Valley Tax Bill

$29,288

Median Santa Clara County Tax Bill

$8,895

Median California Tax Bill

$4,683

Median United States Tax Bill

$2,690

Property Tax Bills Across Portola Valley, Santa Clara County, California

Zip10th Percentile25th PercentileMedian Tax Bill75th Percentile90th Percentile
94028$4,476$11,131$29,288$81,901$119,363

Source: Ownwell

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