Windsor, CA Property Tax Rate (FY 2026-27)
Windsor's property tax rate is 1.1235% for fiscal year 2026-27 in its primary tax rate area: the 1% Proposition 13 base plus 0.1235% in voter-approved bonds.
First-year property tax by purchase price
Under Proposition 13 the purchase price becomes the assessed value, so the first-year tax at the city rate is the price times 1.1235%. Fixed assessments come on top. Your true tax rate is the two together, the tax at the city rate plus fixed assessments, divided by the purchase price on a newly purchased home.
| Purchase price | Annual tax | Monthly |
|---|---|---|
| $500,000 | $5,617.50 | $468.13 |
| $750,000 | $8,426.25 | $702.19 |
| $1,000,000 | $11,235.00 | $936.25 |
| $1,500,000 | $16,852.50 | $1,404.38 |
| $2,000,000 | $22,470.00 | $1,872.50 |
Property tax calculator
Search for a city, then change the price, rate or fixed assessments to estimate a first-year bill. It uses the same math as Mortgage Blueprint's tax breakdown.
What this rate leaves out
- This is the rate for Windsor's primary tax rate area. Other tax rate areas in the same city can have a different rate.
- Mello-Roos (Community Facilities District) taxes, flat parcel taxes and fixed special assessments are not included. Check the property's tax bill.
- Buyers get a supplemental tax bill after purchase for the change in assessed value.
- Under Proposition 13, the assessed value can rise by at most 2% a year while you own the home.
Look up a tax bill
Look up your Sonoma County property tax bill on the Sonoma County Auditor-Controller-Treasurer-Tax Collector site. Sonoma County property tax rates and due dates.
Loan limits
Windsor is in Sonoma County, where the 2026 conforming loan limit for a one-unit home is $897,000. Sonoma County loan limits.
Other cities in Sonoma County
| City or community | Tax rate (FY 2026-27) |
|---|---|
| Bodega | 1.1257% |
| Bodega Bay | 1.0614% |
| Boyes Hot Springs | 1.1140% |
| Cazadero | 1.0720% |
| Cloverdale | 1.1690% |
| Cotati | 1.1390% |
| El Verano | 1.1140% |
| Forestville | 1.1237% |
| Fulton | 1.1285% |
| Geyserville | 1.0835% |
| Glen Ellen | 1.1140% |
| Graton | 1.1207% |
| Guerneville | 1.1167% |
| Healdsburg | 1.1255% |
| Jenner | 1.1032% |
| Kenwood | 1.1125% |
| Larkfield-Wikiup | 1.1285% |
| Monte Rio | 1.1032% |
| Occidental | 1.1257% |
| Penngrove | 1.1243% |
| Petaluma | 1.1243% |
| Rio Nido | 1.1167% |
| Rohnert Park | 1.1390% |
| Santa Rosa | 1.1315% |
| Sebastopol | 1.1502% |
| Sonoma | 1.1140% |
| The Sea Ranch | 1.0625% |
| Valley Ford | 1.0614% |
Source
Rate from County of Sonoma ACTTC - Multi-Year Tax Rates, Tax Year 2026 (FY 2026-2027), report dated 9/15/2026. All California city rates.