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Napa, Solano County, California Property Taxes

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Property Taxes in Napa, California

  • Median Napa, California effective property tax rate: 1.13%, significantly lower than the national median of 1.02%, and lower than the California state median of 1.21%.

  • Median Napa, California home value: $4,707,154

  • Median annual Napa, California tax bill: $53,214, higher than the national median property tax bill of $2,400.

How are property taxes in Solano calculated?

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

Last Updated April 13, 2026

Napa, Solano County, California Property Tax Bill Calculator

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

1.13%

Estimate Property Tax Bill

$53,191

$49,360

How Does the Napa Property Tax Calculator Work?

Use this Napa property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Napa's median effective tax rate of 1.13% — based on actual property records in Solano 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 Napa'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 Napa: rates range from local differences in school district levies and assessment districts, which can affect your total tax bill.

For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Napa.

About Napa Property Taxes

About Property Taxes in Napa, Solano, California

Napa’s median effective property tax rate of 1.13% is lower than the California state median of 1.21% and higher than the national median of 1.02%. This rate reflects the Solano 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 Napa. Homeowners in the highest ZIP code carry a median effective rate of 1.13%, while those in the lowest pay 1.13%. This spread reflects how school district boundaries and local assessment districts are drawn across Solano County. Understanding which part of Napa you live in can make a meaningful difference to your annual tax bill.

Napa homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before the November 30, 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 Napa, Solano 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 Napa’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 Napa, Solano County, California

Source: Ownwell

1.05%

1.50%

1.96%

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 Napa Tax Rate

1.13%

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 Solano County Tax Rate

1.21%

Median Effective California Tax Rate

1.21%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Napa, Solano County, California

Zip10th Percentile25th PercentileMedian Tax Rate75th Percentile90th Percentile
94558N/AN/AN/AN/AN/A

Source: Ownwell

Property Tax Assessment Values Across Napa, Solano County, California

When examining property taxes in Napa, 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 Solano 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.

Assessment notices:

In Solano County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month when notices are sent.

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 Napa.

For example, the median home price in Napa is $4,707,154, with tax bills ranging significantly across the county. The median tax bill is $53,214, compared with the national median property tax bill of $2,400.

Property Tax Assessment Values Across Napa, Solano County, California

Source: Ownwell

$102,499

$476,276

$850,052

Median Napa Market Value

$4,707,154

Median Solano County Market Value

$378,209

Median California Market Value

$427,605

Median United States Market Value

$235,294

Property Tax Assessment Values Across Napa, Solano County, California

Zip10th Percentile25th PercentileMedian Home Price75th Percentile90th Percentile
94558N/AN/AN/AN/AN/A

Source: Ownwell

Property Tax Bills Across Napa, Solano County, California

How are property tax bills calculated in Napa?

Property tax bills in Napa are based on the assessed value of a home, which is tied to the market value of the property and adjusted under local tax rules. The county applies its tax rate to that assessed value to determine the bill, so homes with higher values generally face larger property tax bills. For many homeowners, this means the amount owed can rise when market values increase, even if the property itself has not changed.

What factors affect the final bill? The biggest driver is the home’s assessed value, but local tax rates and any eligible exemptions also play a role. With a median home price of $4,707,154, property tax bills in Napa can be substantial. The 25th percentile bill is $35,436, the 75th percentile bill is $70,991, and the 90th percentile bill is $81,657. Those figures are far above the national median property tax bill of $2,400, showing how much higher the burden can be for homeowners here.

Property Tax Bills Across Napa, Solano County, California

Source: Ownwell

$1,054

$6,654

$12,254

Median Napa Tax Bill

$53,214

Median Solano County Tax Bill

$4,831

Median California Tax Bill

$5,134

Median United States Tax Bill

$2,400

Property Tax Bills Across Napa, Solano County, California

Zip10th Percentile25th PercentileMedian Tax Bill75th Percentile90th Percentile
94558N/AN/AN/AN/AN/A

Source: Ownwell

Don't miss the deadline to appeal!

Frequently Asked Property Tax Questions in Napa, California

How are property taxes calculated in Napa, California?
Property taxes in Napa, 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 Napa, California?
To appeal your property taxes in Napa, 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 Napa, California?
Common property tax exemptions in Napa, 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 Napa, California?
Property tax deadlines in Napa, 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 Napa, California?
Ownwell provides professional property tax appeal services in Napa, 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.