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Updated 2025 Tax Year

Butte County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
Effective rate ~0.825% (varies by district due to bonds, CFDs, and Mello-Roos assessments)
1st Due
Nov 1
2nd Due
Feb 1
Exemptions
4+ Available
Section 1

How Property Tax Works

Butte County's property tax system serves as the primary funding mechanism for essential local services including schools, fire protection, law enforcement, libraries, and county operations. Property taxes in Butte County are governed by California's Proposition 13, which established a base tax rate of approximately 1% of assessed value, with annual assessment increases capped at 2%. The county's effective tax rate for FY 2025-2026 is approximately 0.825%, though this varies significantly by location within the county.

Actual property tax rates differ across Butte County depending on the specific taxing districts where your property is located. These special districts may include school bonds, community facility districts (CFDs), Mello-Roos districts, and other local assessment districts. Properties in incorporated cities may have additional assessments compared to unincorporated areas. The Butte County Assessor-Recorder determines assessed values, while the Treasurer-Tax Collector handles billing and collection of approximately $13.6 million in annual property tax revenue countywide.

Section 2

What Makes Up Your Tax Bill

ComponentRateDescription
Base County Rate1.0000%Proposition 13 base levy for county services
Effective Average Rate0.8250%Average rate across all districts (FY 2025-2026)
School District Bonds0.0100-0.0400%Varies by school district location
Community College Bonds0.0050-0.0150%Butte College district assessments
City/Fire District Bonds0.0000-0.0300%Varies by incorporated city or fire district
Mello-Roos/CFD0.0000-0.2000%Community facilities districts (newer developments)
Vector Control0.0010-0.0020%Butte County Mosquito and Vector Control

Note: These rates apply to FY 2025-2026 and vary significantly by property location. Properties may be subject to multiple overlapping districts. Contact the Butte County Assessor-Recorder at (530) 538-7691 for your specific tax rate area.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Butte 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 in Butte County are triggered by two main events: change in ownership or completion of new construction. When either occurs, the county reassesses the property at current market value, and you receive a supplemental tax bill for the difference between the old and new assessed values, prorated for the remaining months in the fiscal year.

For example, if you purchase a home in Butte County in October that was previously assessed at $250,000 but sells for $400,000, the supplemental assessment would be $150,000. With an effective rate of 0.825%, your supplemental tax would be approximately $927 (($150,000 × 0.00825) × 9/12 months remaining in the fiscal year). This supplemental bill is separate from and in addition to the regular annual property tax bill. Supplemental taxes become a lien immediately and are typically due within 30 days of the bill date, with no installment payment option available.

Example Calculation

Example 1: $300,000 Home

  • Market/Purchase Value: $300,000
  • Assessed Value: $300,000
  • Less: Homeowners' Exemption: -$7,000 (if applied for)
  • Net Taxable Value: $293,000
  • Annual Tax (0.825%): $2,417
  • Monthly Escrow: $201

Example 2: $600,000 Home

  • Market/Purchase Value: $600,000
  • Assessed Value: $600,000
  • Less: Homeowners' Exemption: -$7,000 (if applied for)
  • Net Taxable Value: $593,000
  • Annual Tax (0.825%): $4,892
  • Monthly Escrow: $408

Example 3: $1,000,000 Home

  • Market/Purchase Value: $1,000,000
  • Assessed Value: $1,000,000
  • Less: Homeowners' Exemption: -$7,000 (if applied for)
  • Net Taxable Value: $993,000
  • Annual Tax (0.825%): $8,192
  • Monthly Escrow: $683

Note: The Homeowners' Exemption requires a one-time application using form BOE-266 and reduces assessed value by $7,000, saving approximately $70-80 annually. Additional exemptions may apply for veterans, seniors, or disabled persons but require separate applications with specific deadlines.

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Section 5

Escrow & Property Taxes

Most Butte County homeowners with mortgages have their property taxes collected through escrow accounts managed by their mortgage servicer. Lenders collect 1/12 of your estimated annual property tax bill with each monthly mortgage payment, holding these funds in escrow until tax payments are due. The servicer pays your property taxes directly to Butte County on the November 1st and February 1st due dates.

Your lender will provide an annual escrow analysis, typically around the loan anniversary date, showing the previous year's activity and any adjustments needed for the coming year. If property taxes increase due to reassessment or new voter-approved bonds, your monthly escrow payment will adjust accordingly. You can verify that taxes were paid correctly by checking the Butte County Treasurer-Tax Collector website or calling (530) 538-7701. Keep copies of your mortgage servicer's escrow statements as proof of payment, and notify your servicer immediately if you receive any delinquent tax notices, as these may indicate processing delays or errors.

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 Butte County for FY 2025-2026? A: Property taxes are due in two installments: November 1st for the first installment and February 1st for the second installment. Payments are considered delinquent if received after 5:00 PM on the due date.

Q: What tax credits are available and do I need to apply? A: The primary credit is the Homeowners' Exemption, which reduces assessed value by $7,000 and requires a one-time application using form BOE-266. Additional credits include the Veterans' Exemption, Senior Citizens' Exemption, and Disabled Persons' Exemption - all requiring separate applications with specific deadlines, typically by February 15th.

Q: How does the Homeowners' Exemption work? A: This is not automatic - you must file form BOE-266 with the Butte County Assessor-Recorder. It reduces your home's assessed value by $7,000, saving approximately $70-80 annually in taxes. The exemption also helps limit assessment increases under Proposition 13's 2% annual cap.

Q: When does the county reassess my property value? A: Routine reassessments occur annually with increases capped at 2% under Proposition 13. Full market value reassessments happen when you purchase property or complete new construction. The county may also reassess if property values decline significantly (Proposition 8).

Q: How do I appeal my property assessment? A: File an Application for Changed Assessment with the Butte County Assessment Appeals Board between July 2nd and September 15th (or within 60 days of receiving a notice of supplemental assessment). The filing fee is $60 for properties assessed under $800,000.

Q: What are the penalties for late payment? A: A 10% penalty applies to the first installment if paid after November 1st, and to the second installment if paid after February 1st. Additional penalties and costs accrue monthly, and properties become eligible for tax sale after five years of delinquency.

Q: Can I pay my property taxes online? A: Yes, visit the Butte County Treasurer-Tax Collector website at buttecounty.net or call (530) 538-7701. Online payments, checks, and in-person payments are accepted. Credit card payments incur additional processing fees.

Q: What are Mello-Roos taxes and special assessments? A: These are additional taxes for specific infrastructure or services in Community Facilities Districts (CFDs), commonly found in newer developments. Rates vary from 0% to 0.20% depending on location and can include bonds for schools, parks, or utilities. These appear as separate line items on your tax bill and may have different payment schedules than regular property taxes.

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