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Simi Valley, Los Angeles County, California Property Taxes

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Property Taxes in Simi Valley, California

  • Median Simi Valley, California effective property tax rate: 1.33%, significantly higher than the national median of 1.02%, and higher than the California state median of 1.21%.

  • Median Simi Valley, California home value: $1,604,940

  • Median annual Simi Valley, California tax bill: $20,932, $18,532 higher than the national median property tax bill of $2,400.

How are property taxes in Los Angeles calculated?

Property taxes in Simi Valley, California 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 Simi Valley's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Simi Valley, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Simi Valley, Los Angeles County, California Property Tax Bill Calculator

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

1.33%

Estimate Property Tax Bill

$21,346

$19,808

SAVE WITH OWNWELL

$774

Average Annual Tax Savings

How Does the Simi Valley Property Tax Calculator Work?

Use this Simi Valley property tax calculator to estimate your annual tax bill. Enter your property's assessed value and our calculator applies Simi Valley's median effective tax rate of 1.33% — based on actual property records in Los Angeles County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local assessment system uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Simi Valley's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.

Your bill may vary by ZIP code within Simi Valley: rates range from the lowest ZIP rate to the highest ZIP rate, primarily due to differences in school district levies and local assessment districts.

If your estimate is higher than expected, Ownwell can appeal your Simi Valley assessment — you only pay if we save you money.

About Simi Valley Property Taxes

About Property Taxes in Simi Valley, Los Angeles, California

Simi Valley's median effective property tax rate of 1.33% is higher than the California state median of 1.21% and higher than the national median of 1.02%. This rate reflects the Los Angeles County base levy combined with local school district levies and Mello-Roos Community Facility Districts that vary by subdivision throughout the city.

Property tax rates are not uniform across Simi Valley. Homeowners in the highest ZIP code carry a median effective rate of 1.33%, while those in the lowest ZIP code pay 1.33%. This spread — 0 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Los Angeles County. Understanding which part of Simi Valley you live in can make a meaningful difference to your annual tax bill.

Simi Valley homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the December 1, 2026 deadline each year.

If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.

Property Tax Rates Across Simi Valley, Los Angeles County, California

As noted earlier, local government entities set tax rates, which can vary widely within a state.

Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.

While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.

Below, you can compare Simi Valley's effective property tax rate to other cities in California and the median property tax rates in California and the U.S.

Property Tax Rates Across Simi Valley, Los Angeles County, California

Source: Ownwell

1.10%

1.52%

1.95%

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 Simi Valley Tax Rate

1.33%

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 Los Angeles County Tax Rate

1.29%

Median Effective California Tax Rate

1.21%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Simi Valley, Los Angeles County, California

Zip10th Percentile25th PercentileMedian Tax Rate75th Percentile90th Percentile
93063N/AN/AN/AN/AN/A

Source: Ownwell

Property Tax Assessment Values Across Simi Valley, Los Angeles County, California

When examining property taxes in Simi Valley, California, 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 Los Angeles County assessor 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.

Assessment notices:

In Los Angeles County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of October.

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 Simi Valley.

For example, the median home price in Simi Valley is $1,604,940, with tax bills ranging significantly across the county. The median tax bill is $20,932, compared with the national median property tax rate of 1.02% and the national median property tax bill of $2,400.

Property Tax Assessment Values Across Simi Valley, Los Angeles County, California

Source: Ownwell

$56,016

$1,480,655

$2,905,294

Median Simi Valley Market Value

$1,604,940

Median Los Angeles County Market Value

$457,139

Median California Market Value

$427,605

Median United States Market Value

$235,294

Property Tax Assessment Values Across Simi Valley, Los Angeles County, California

Zip10th Percentile25th PercentileMedian Home Price75th Percentile90th Percentile
93063N/AN/AN/AN/AN/A

Source: Ownwell

Property Tax Bills Across Simi Valley, Los Angeles County, California

How are property tax bills calculated in Simi Valley?

Property tax bills in Simi Valley are based on the assessed value of a home, which is determined by the county and then multiplied by the local tax rate. Factors like the home’s market value, location, and any eligible exemptions can affect the final bill. With a median home price of $1,604,940, property taxes can create a significant annual expense for homeowners in Los Angeles County.

What does this mean for homeowners?

The 25th percentile property tax bill is $17,007, while the 75th percentile is $24,856 and the 90th percentile reaches $27,211. That is far above the national median property tax bill of $2,400 and the national median property tax rate of 1.02%. When a home is overassessed, owners may pay more than they should.

How can Ownwell help?

Ownwell helps homeowners challenge unfair assessments and find exemptions that may lower their property tax bills. By reviewing your property’s assessed value and identifying savings opportunities, Ownwell can help reduce what you owe each year.

Property Tax Bills Across Simi Valley, Los Angeles County, California

Source: Ownwell

$875

$17,017

$33,158

Median Simi Valley Tax Bill

$20,932

Median Los Angeles County Tax Bill

$5,993

Median California Tax Bill

$5,134

Median United States Tax Bill

$2,400

Property Tax Bills Across Simi Valley, Los Angeles County, California

Zip10th Percentile25th PercentileMedian Tax Bill75th Percentile90th Percentile
93063N/AN/AN/AN/AN/A

Source: Ownwell

Don't miss the deadline to appeal!

Frequently Asked Property Tax Questions in Simi Valley, California

How are property taxes calculated in Simi Valley, California?
Property taxes in Simi Valley, California are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.
How do I appeal my property taxes in Simi Valley, California?
To appeal your property taxes in Simi Valley, California, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.
What property tax exemptions are available in Simi Valley, California?
Common property tax exemptions in Simi Valley, California include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.
When are property taxes due in Simi Valley, California?
Property tax deadlines in Simi Valley, California vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.
How can Ownwell help reduce my property taxes in Simi Valley, California?
Ownwell provides professional property tax appeal services in Simi Valley, California. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.