Property Details
Sonoma County median: $810,000
Sonoma County average: 1.020%
California Property Tax Note
California Proposition 13 caps the base property tax rate at 1% of assessed value at purchase, plus voter-approved local bonds and assessments. Actual rates vary by city due to Mello-Roos and special assessments.
Your Property Tax Estimate
Annual Tax
$8,262
Monthly Tax
$689
Effective Rate
1.020%
Tax at Different Price Points in Sonoma County
| Home Price | Annual Tax | Monthly Tax |
|---|---|---|
| $500,000 | $5,100 | $425 |
| $750,000 | $7,650 | $638 |
| $1,000,000 | $10,200 | $850 |
| $1,500,000 | $15,300 | $1,275 |
| $2,000,000 | $20,400 | $1,700 |
Based on 1.020% effective tax rate for Sonoma County.
Impact on Monthly Mortgage Payment
Property taxes are part of your total PITI (Principal, Interest, Taxes, Insurance) payment. Lenders include $689/month in your qualifying debt-to-income ratio.
Monthly Tax Escrow
$689
Annual Tax Bill
$8,262
Calculations are estimates for educational purposes only. Actual property taxes depend on your county assessor's valuation, local bond measures, Mello-Roos districts, and homeowner exemptions. Contact Mo Abdel at (949) 822-9662 for a personalized mortgage analysis. NMLS #1426884 | Lumin Lending NMLS #2716106.
City Tax Estimators in Sonoma County
Frequently Asked Questions
What is the average property tax rate in Sonoma County, California?
The average effective property tax rate in Sonoma County is 1.02% for 2026. On the median home value of $810,000, that equals approximately $8,262 per year or $689 per month.
How are property taxes calculated in Sonoma County?
In Sonoma County, California, property taxes start with Proposition 13's base rate of 1% of the assessed value (purchase price), plus voter-approved local bonds and Mello-Roos special assessments. The assessed value increases by a maximum of 2% per year regardless of market appreciation.
What is Mello-Roos and does it affect Sonoma County property taxes?
Mello-Roos is a special tax district in California that funds local infrastructure and services in newer developments. Many communities in Sonoma County have Mello-Roos assessments ranging from 0.25% to 1.5% of the home's original sale price, added on top of the base property tax. Check with Sonoma County County Assessor for specific Mello-Roos districts.
How do property taxes affect my mortgage payment in Sonoma County?
Property taxes are included in your monthly PITI payment (Principal, Interest, Taxes, Insurance). In Sonoma County, the estimated $689/month tax escrow on a median-priced home is factored into your debt-to-income ratio by lenders. This directly affects how much home you qualify for.
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