San Anselmo property tax: where it goes
A San Anselmo house pays 1.156% of its taxable value in property tax, plus flat charges on the same bill. For a house at $1,576,700 of market value with the homeowners' exemption, that's about $20,447 a year.
Tax is levied on assessed value less exemptions (Prop 13): the countywide 1% tax of $1.00 per $100 of assessed value, plus the voter-approved bond rates the Marin County Board of Supervisors adopted for 2026-27.
Who taxes this house
| Taxing agency | Rate | On $1,576,700 |
|---|---|---|
| Countywide 1% tax (Prop 13) | 1% | $15,697 |
| Town of San Anselmo pension override | 0.059% | $926 |
| Town of San Anselmo bonds | 0.004% | $63 |
| College of Marin bonds (schools) | 0.0234% | $367 |
| Ross Valley School District bonds (schools) | 0.0222% | $348 |
| Tamalpais Union High School District bonds (schools) | 0.0289% | $454 |
| Marin Healthcare District bonds | 0.0185% | $290 |
| Ross Valley School District parcel tax | flat | $1,282 |
| Tamalpais Union High School District parcel tax (Measure M) | flat | $560 |
| Marin Wildfire Prevention Authority tax (Measure C, 2,000 sq ft house) | flat | $228 |
| Ross Valley Paramedic Authority tax | flat | $104 |
| Marin Water fire flow fee | flat | $75 |
| Marin Emergency Radio Authority tax | flat | $29 |
| SF Bay Restoration Authority parcel tax (Measure AA) | flat | $12 |
| Marin/Sonoma mosquito & vector control assessment | flat | $12 |
| Total | 1.156% | $20,447 |
2026-27 tax year, Marin County (San Anselmo tax rate areas 7-000 to 7-006). Exemptions applied: Homeowners' exemption ($7,000).
Ways to pay less
- Seniors 65+: Tamalpais Union High School District parcel tax exemption. Homeowners who are 65 by May 1 and both own and live in the home can be exempted from the high school district's parcel tax for the following tax year; some owners receiving SSI or SSDI disability benefits can also qualify. How: File the application by May 1, online or by mail; questions: (844) 332-0549.
- Low-income seniors 65+: wildfire tax exemption. Owners 65 or older in a single-family home whose household income is at or below HUD income limits can be exempted from the Marin Wildfire Prevention Authority parcel tax. The application must be filed every year before June 30. How: Apply through the Marin Wildfire Prevention Authority's senior exemption page; status questions go to NBS at customercare@nbsgov.com or 1-(800) 676-7516.
- Low-income households: 25% off the sewer service charge. Ross Valley Sanitary District's assistance program takes 25% off the sewer service charge on the property tax bill for an owner-occupied single-family home whose gross household income is not more than the Low-Income Limit. The 2026/27 application was due June 30, 2026, and approval lasts one year, so you apply again each year. How: File Ross Valley Sanitary District's Sewer Service Charge Assistance Program application with proof of income (a tax return or a PG&E bill showing CARE).
Dates
| When | What |
|---|---|
| Nov 1 (in 10 days) | Installment 1 of the property tax is due; it is delinquent after 5 p.m. December 10, with a 10% penalty. |
| Nov 30, 2026 (in 39 days) | Last day of Marin County's 2026 assessment appeal filing period (opened July 2). |
| Feb 1 | Installment 2 of the property tax is due; it is delinquent after 5 p.m. April 10, with an additional 10% penalty and a $20 fee. |
| Feb 15 | Last day for a first-time homeowners' exemption claim to get the full exemption for that year. |
| May 1 | Filing deadline for the Tamalpais Union High School District senior parcel tax exemption for the next tax year. |
| Jun 30 | Applications due for Ross Valley Sanitary District's sewer charge assistance (a new one each year) and the Marin Wildfire low-income senior exemption. |
Pay or manage it
Sources
- Tamalpais Union High School District parcel tax exemption form
- Marin County 2025-26 Tax Rate Book
- Marin Wildfire Prevention Authority board packet, March 19, 2026 (2026-27 tax rate resolution)
- Marin County Board of Supervisors staff report: FY 2026-27 tax rates (Aug 25, 2026)
- Marin County 2026-27 tax rates, Exhibit A (countywide 1%)
- Marin County 2026-27 voter-approved tax rates, Exhibit B
- Resolution setting FY 2026-27 tax rates
- Marin Water: fire flow fee exemptions
- MERA parcel tax (NBS parcel tax info)
- SF Bay Restoration Authority Measure AA (NBS parcel tax info)
- Marin County elections: San Anselmo Measure J (June 2022), paramedic tax
- California BOE: Homeowners' Exemption
- California BOE letter: 2026 assessment appeal filing periods by county
- Marin County: property tax penalties and late payments
- Marin County Office of Education: 2026-27 school parcel tax summary
- Marin Wildfire Prevention Authority: low-income senior exemption
- Tamalpais Union High School District: parcel tax exemption
Checked October 22, 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.