HonestCasa logoHonestCasa
Updated 2025 Tax Year

Lassen County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
1.0% to 1.2% of assessed value (1% base rate plus special districts, varies by location)
1st Due
Nov 1
2nd Due
Feb 1
Exemptions
5+ Available
Section 1

How Property Tax Works

Lassen County's property tax system operates under California's Proposition 13 framework, with a base tax rate of approximately 1% of assessed value. Property taxes fund essential county services including schools, fire protection, libraries, and local government operations. The effective tax rate in Lassen County typically ranges from 1.0% to 1.2% of assessed value, though this varies significantly by location within the county.

Your actual property tax rate depends on which special taxing districts serve your property, such as school districts, fire districts, water districts, or community facilities districts (CFDs). Properties in incorporated areas like Susanville may have additional city taxes, while rural properties may have different special district assessments. The county assessor determines your property's assessed value, while various taxing authorities set the rates that apply to your specific location.

Section 2

What Makes Up Your Tax Bill

ComponentRate RangeDescription
Base County Rate~1.00%Required by Proposition 13 for general county services
School DistrictsVariesLocal school district bonds and assessments
Fire ProtectionVariesFire district services and equipment bonds
Water/Sewer DistrictsVariesInfrastructure and service assessments
Community Facilities DistrictsVariesSpecial improvement district bonds
Other Special AssessmentsVariesLibrary, hospital, or other local service districts

Total Effective Rate: 1.0% - 1.2% (FY 2024-2025)

Note: Actual rates vary significantly by property location within Lassen County. Contact the Assessor's Office at (530) 251-8217 for your specific tax rate area. Properties in different parts of the county may have substantially different total rates based on local district boundaries.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Lassen 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 triggered when property changes ownership or when new construction is completed. These taxes cover the difference between your property's previous assessed value and its new assessed value, prorated for the remaining portion of the fiscal year (July 1 - June 30).

For example, if you purchase a home in January that was previously assessed at $200,000 but sells for $400,000, you'll receive a supplemental tax bill for the increased assessment ($200,000 difference) covering January through June. The supplemental tax would be approximately $1,000 ($200,000 × 1.0% ÷ 2 for half-year). Supplemental bills are issued separately from regular property tax bills and have different due dates, typically 30 days from the postmark date.

Example Calculation

Example 1: $300,000 Home

  • Assessed Value: $300,000
  • Homeowners' Exemption: -$7,000 (saves ~$70)
  • Net Taxable Value: $293,000
  • Tax Rate: 1.0%
  • Annual Tax: $2,930
  • Monthly (Escrow): $244

Example 2: $600,000 Home

  • Assessed Value: $600,000
  • Homeowners' Exemption: -$7,000 (saves ~$70)
  • Net Taxable Value: $593,000
  • Tax Rate: 1.1%
  • Annual Tax: $6,523
  • Monthly (Escrow): $544

Example 3: $1,000,000 Home

  • Assessed Value: $1,000,000
  • Homeowners' Exemption: -$7,000 (saves ~$70)
  • Net Taxable Value: $993,000
  • Tax Rate: 1.2%
  • Annual Tax: $11,916
  • Monthly (Escrow): $993

Note: Homeowners' exemption requires application and provides $7,000 reduction in assessed value. Tax rates shown are estimates - actual rates vary by special district.

See How Taxes Affect Your Payment

Property taxes are just part of your total monthly cost. Get the full picture.

Calculate Now
Section 5

Escrow & Property Taxes

Most mortgage lenders require an escrow account to collect and pay your property taxes. Your lender estimates your annual tax bill and divides it by 12 monthly payments added to your mortgage payment. The lender pays your taxes directly to Lassen County when due.

Property taxes are paid in two installments: the first half is due November 1st (delinquent December 10th), and the second half is due February 1st (delinquent April 10th). Your escrow servicer typically pays these installments on time to avoid penalties. Review your annual escrow analysis statement to verify the correct tax amount is being collected, as special district rates can change. If your actual tax bill differs significantly from the escrow estimate, your monthly payment may be adjusted, and you may owe a shortage or receive a refund.

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 Lassen County property taxes due for FY 2024-2025? A: First installment is due November 1, 2024 (delinquent after December 10), and second installment is due February 1, 2025 (delinquent after April 10).

Q: What tax credits are available and do they require application? A: The Homeowners' Exemption provides a $7,000 reduction in assessed value (saving ~$70 annually) and requires application. Veterans' exemptions and senior/disabled person property tax postponement programs are also available but require separate applications with specific deadlines.

Q: How does the Homeowners' Exemption work? A: This is not a homestead credit but an exemption that reduces your assessed value by $7,000. You must apply with the Assessor's Office, and it's not automatic. The exemption stays in effect until you sell or change your primary residence status.

Q: When does the county reassess my property? A: Properties are reassessed upon change of ownership or completion of new construction. Otherwise, assessed values can only increase by a maximum of 2% annually under Proposition 13, regardless of market value changes.

Q: How do I appeal my property assessment? A: File an application with the Assessment Appeals Board between July 2 and September 15. Contact the Clerk of the Board at (530) 251-8269. You can also file for decline-in-value reassessment if your property's market value has dropped below its assessed value.

Q: What are the penalties for late payment? A: A 10% penalty is added if the first installment isn't paid by December 10th, and another 10% penalty applies to the second installment if not paid by April 10th. Additional costs and interest accrue monthly after delinquency.

Q: Can I pay my property taxes online? A: Yes, visit the Lassen County Tax Collector's website or contact their office at (530) 251-8234 for online payment options and accepted payment methods.

Q: Why did I receive a supplemental tax bill? A: Supplemental bills are issued when property changes ownership or new construction is completed mid-year. These bills cover the tax difference for the remainder of the fiscal year and are due 30 days from the postmark date.

See the Full Picture of Your Home Costs

Property taxes are just one piece of homeownership. HonestCasa helps you understand your total monthly cost and explore safe ways to access your home equity.

Total Monthly Cost

Mortgage + taxes + insurance + HOA

Equity Growth

Track how your equity grows over time

Safe Equity Access

Options for projects or debt payoff

Free • No credit check • 2-minute estimate