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Updated 2025 Tax Year

San Luis Obispo County
Property Tax Guide

Everything you need to know about property taxes in San Luis Obispo County, CA. Rates, due dates, exemptions, and how it affects your monthly payment.

10 Official Sources
8 min read
Quick Facts
Tax Rate
1.02856% to 1.20383% of assessed value (varies by district and special assessments)
1st Due
Nov 1
2nd Due
Feb 1
Exemptions
4+ Available
Section 1

How Property Tax Works

San Luis Obispo County's property tax system operates under California's Proposition 13 framework, with property taxes serving as the primary funding source for essential county services including schools, fire protection, libraries, and local government operations. The effective tax rates for fiscal year 2025-2026 range from 1.02856% to 1.20383% of assessed value, depending on your property's location within the county.

Property tax rates vary significantly across San Luis Obispo County due to special taxing districts, municipal boundaries, and voter-approved bonds for schools and infrastructure. Properties in incorporated cities may have different rates than unincorporated areas, and some neighborhoods are subject to Community Facilities Districts (CFDs) or Mello-Roos assessments that add to the base county rate. Your specific tax rate depends on which combination of taxing districts serve your property location.

Section 2

What Makes Up Your Tax Bill

For fiscal year 2025-2026, San Luis Obispo County property tax rates include the following components:

ComponentRate RangeDescription
Base County Rate~1.00%Core county services per Proposition 13
School Districts0.15-0.35%Local school district operations and bonds
City/Municipal0.05-0.15%City services (incorporated areas only)
Special Districts0.02-0.20%Fire, water, library, parks, other local services
Mello-Roos/CFDs0.10-0.50%Infrastructure financing districts (select areas)
Total Effective Rate1.02856-1.20383%Varies by property location

These rates apply to the 2025-2026 fiscal year (July 1, 2025 through June 30, 2026). Properties in areas like Paso Robles, San Luis Obispo city, and newer developments with CFDs typically fall toward the higher end of this range, while rural unincorporated areas may have rates closer to the minimum.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in San Luis Obispo County, property taxes are due in two installments:

First Installment
Nov 1
Delinquent after Dec 10
Second Installment
Feb 1
Delinquent after Apr 10
Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental taxes are additional property tax bills issued when your property's assessed value changes mid-year due to ownership changes, new construction completion, or significant improvements. These taxes are separate from your regular annual property tax bill and cover the difference between your old and new assessed values for the remaining portion of the fiscal year.

For example, if you purchase a home in San Luis Obispo County in January 2026 that was previously assessed at $400,000 but sells for $700,000, you'll receive a supplemental tax bill for the $300,000 increase in assessed value, prorated from January through June 30, 2026. At a 1.15% tax rate, this would result in a supplemental bill of approximately $1,725 ($300,000 × 1.15% × 6/12 months). Supplemental tax bills are typically mailed 8-12 weeks after the triggering event and become delinquent if not paid within 30 days of the delinquency date printed on the bill.

Example Calculation

Here are three property tax examples for fiscal year 2025-2026, assuming a 1.15% effective tax rate and application for the homeowners' exemption:

$300,000 Home:

  • Assessed Value: $300,000
  • Less Homeowners' Exemption: -$7,000
  • Net Taxable Value: $293,000
  • Annual Tax: $3,369.50 ($293,000 × 1.15%)
  • Monthly Escrow: $280.79

$600,000 Home:

  • Assessed Value: $600,000
  • Less Homeowners' Exemption: -$7,000
  • Net Taxable Value: $593,000
  • Annual Tax: $6,819.50 ($593,000 × 1.15%)
  • Monthly Escrow: $568.29

$1,000,000 Home:

  • Assessed Value: $1,000,000
  • Less Homeowners' Exemption: -$7,000
  • Net Taxable Value: $993,000
  • Annual Tax: $11,419.50 ($993,000 × 1.15%)
  • Monthly Escrow: $951.63

Note: The homeowners' exemption requires annual application and saves approximately $80 per year. Actual tax rates vary by location within the county.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in San Luis Obispo County require borrowers to maintain an escrow account for property taxes, collecting monthly payments and disbursing taxes on the November 1st and February 1st due dates. Lenders typically collect 1/12 of your annual property tax bill each month, plus an additional 2-month cushion as required by federal law.

Your lender will receive tax bills directly from the San Luis Obispo County Tax Collector and make payments on your behalf. You should verify that payments are made correctly by checking your annual escrow statement and monitoring the county's online payment system. If your property taxes increase due to supplemental assessments or rate changes, your lender will adjust your monthly escrow payment accordingly, typically providing 60 days' notice of any payment changes. Property owners remain ultimately responsible for ensuring taxes are paid even when using escrow services.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
  • Plan ahead instead of being surprised by "shortage" letters
Section 6

Frequently Asked Questions

Q: When are property taxes due in San Luis Obispo County for 2025-2026? A: The first installment is due November 1, 2025, and the second installment is due February 1, 2026. The second installment becomes delinquent if not paid by 5:00 PM on April 10, 2026.

Q: What tax credits are available and do I need to apply? A: The primary tax benefit is the homeowners' exemption, which reduces assessed value by $7,000 (saving about $70-80 annually). This requires application using form BOE-266. Veterans, seniors, and disabled persons may qualify for additional exemptions, all requiring separate applications with specific deadlines.

Q: How does the homeowners' exemption work? A: The homeowners' exemption reduces your home's assessed value by $7,000 if you own and occupy the property as your principal residence. You must apply annually, and it's not automatically renewed. Applications are typically due by February 15th for the current tax year.

Q: What are the penalties for late payment? A: A 10% penalty is added to the first installment if not paid by December 10th, and 10% plus costs are added to the second installment if not paid by April 10th. Additional penalties and costs accrue monthly, and properties may eventually be sold at tax sale.

Q: How can I pay my property taxes? A: You can pay online through the county website, by phone, by mail, or in person at the Tax Collector's office. The county accepts checks, money orders, and electronic payments for most bill types.

Q: When are properties reassessed? A: Properties are reassessed when ownership changes hands or when new construction is completed. Otherwise, assessed values can only increase by a maximum of 2% per year under Proposition 13, regardless of market value increases.

Q: Can I appeal my property assessment? A: Yes, you can file an assessment appeal if you believe your property is overvalued. Appeals for the 2025-2026 tax year must typically be filed between July 2, 2025, and September 15, 2025.

Q: What if my property value has decreased significantly? A: Under Proposition 8, your assessed value can be temporarily reduced if your property's market value falls below its Proposition 13 factored base value. The county assessor may automatically apply this reduction, or you can request a review.

Q: Are there special assessments I should know about? A: Some properties are subject to Mello-Roos Community Facilities District taxes or special assessments for infrastructure improvements. These appear as separate line items on your tax bill and can add 0.10% to 0.50% to your effective tax rate.

Q: How do I find my exact tax rate? A: Your specific tax rate appears on your annual property tax bill and varies based on your property's location within various taxing districts. You can also contact the San Luis Obispo County Assessor's office or check their online property search tool for rate information.

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