Napa property tax: where it goes
A Napa house at the typical market value ($856,400) pays about $10,330 a year on the property tax bill, including flat charges on the same bill. Estimated from public rates, not anyone's actual bill.
A Napa house pays 1.127% of its taxable value in property tax. For a house at $856,400 of market value with the homeowners' exemption, that's about $9,569 a year.
Tax is levied on taxable value (reduced by the $7,000 homeowners' exemption for a qualifying owner-occupied home), taxed at the rates for the parcel's tax rate area.
Napa County has not posted 2026-27 tax rates; the 2025-26 rate table is the latest.
Who taxes this house
| Taxing agency | Rate | On $856,400 |
|---|---|---|
| Countywide 1% tax (Prop 13) | 1% | $8,494 |
| School and college bonds (schools) | 0.1116% | $948 |
| City of Napa paramedic tax | 0.015% | $127 |
| Total | 1.127% | $9,569 |
2025-26 tax year, Napa County (tax rate area 002-000). Exemptions applied: Homeowners' exemption ($7,000).
How Napa compares with nearby cities
Property tax rate
- Sonoma · 9 mi1.11%
- Vallejo · 13 mi1.12%
- Fairfield · 15 mi1.12%
- Suisun City · 16 mi1.12%
- Napa1.13%
- Benicia · 17 mi1.13%
The combined rate of every agency on the bill, before exemptions.
Dates
| When | What |
|---|---|
| Feb 1 | On last year's (2025-26) Napa County tax bill the second installment was due 2/1/26 and delinquent after 4/10/26. |
| Nov 1 | On last year's (2025-26) Napa County tax bill the first installment was due 11/01/25 and delinquent after 12/10/25, with 10% added after 12/10/25. |
Sources
Checked October 28, 2026. Every number here comes from the public sources listed, matched by our checker.
Rates change every year; this page shows when it was last checked. Nothing here is legal, tax or insurance advice.
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