Lassen Property Tax Rates & Calculator – Fast Help 2026

Lassen Property Tax rates in 2026 average around 1.00% to 1.08% depending on the parcel’s location, and the Lassen real estate tax calculator on the Assessor’s portal lets homeowners input their assessed value to see exact figures; the tool also shows how the Lassen County tax bill deadlines of April 10 and December 10 affect payment timing. For those needing help, the Lassen County tax collector contact information includes a main phone line at (530) 251‑8221 and a secure online portal for secure, unsecured, and supplemental tax payments, while the Assessor’s office at 220 S. Lassen St., Suite 4, Susanville, provides the Lassen property assessment process details and the 2026‑2026 Lassen property tax appeal forms. Residents can explore Lassen County property tax exemptions such as the homestead exemption, agricultural land tax assessment relief, and senior rebate programs, all listed on the official website with clear eligibility guidelines. If a bill seems incorrect, the Lassen property tax audit process and refund eligibility criteria are explained, and payment plans are available to avoid penalties.

Lassen Property Tax revenue trends for 2026 show a modest rise linked to increased assessed values across rural and commercial parcels, with commercial property tax rates slightly higher than residential rates. The Lassen County assessed value guidelines require annual reassessment based on market data, and any disputes can be addressed through how to appeal property tax in Lassen using the county’s appeal handbook and deadline calendar. Homeowners looking for tax reduction programs should check the Lassen County tax abatement programs and property tax reduction initiatives, while landlords can reference the Lassen County commercial property tax rates and agricultural land tax assessment rules for accurate budgeting. For quick answers, the Lassen County property tax FAQ covers the notice mailing schedule, parcel lookup steps, and lien information, all supported by the Assessor’s direct public search portal at https://lassenca.tylerhost.net/assessor/axmain.aspx.

Search Lassen County Property Tax

Finding Lassen County property tax records starts with the Assessor’s public search portal. The portal lets anyone look up parcel details, assessed values, and ownership history for free. Most searches take less than a minute when a parcel number is ready.

Follow these steps to find Lassen County property tax records online:

1. Visit the official Lassen County government website at www.lassencounty.org and navigate to the Assessor section for the public search portal
2. Choose your search type from the menu: parcel number, property address, or owner name
3. Type the requested details into the search field on the screen
4. Click the search button to load the parcel record from the database
5. Review the assessed value, parcel map, and tax status shown on the result page
6. Print or save the record to your personal files for future reference

For deed and document records, the Lassen County Recorder EagleWeb system holds recorded deeds, liens, and other public documents. Access to EagleWeb is also available through the official Lassen County website. Both portals work without a paid account and serve the public without requiring a subscription.

Lassen County Property Tax Rates and Effective Rates

Property tax rates in Lassen County sit near the middle of the rural California range. Effective rates vary across different communities, with rates generally tracked by specific tax rate areas that combine the budgets of overlapping agencies, including the county, schools, and special districts. The total rate on a bill reflects all these agencies combined into one number.

To compare current rates across other Lassen County communities and tax rate areas, refer to the Ownwell trends page for Lassen County or the Tax Foundation county-level property tax dataset.

How the Lassen County Property Assessment Process Works

The Lassen County Assessor values every property in the county each year. The office follows California Revenue and Taxation Code rules, which include Proposition 13 limits on annual increases for properties that have not changed ownership. New construction, sales, or ownership changes can trigger a full market-value reassessment.

The assessment process has three main steps:

• Data collection: The Assessor gathers sales data, building permits, and market trends
• Valuation: Staff apply standard methods like the sales comparison approach and cost approach
• Notice mailing: Property owners receive an annual value notice showing the new assessment

Agricultural and timber lands may qualify for special restricted valuations that keep taxes lower than full market value. Each reassessment comes with a new value notice that starts the appeal clock for property owners.

Lassen County Property Tax Exemptions and Relief Programs

California offers several property tax exemptions that Lassen County homeowners can claim. The most common is the Homeowners’ Exemption, which provides an assessed value reduction for owner-occupied homes. The exemption saves most homeowners a small but steady amount each year on the bill.

Other available exemptions include:

• Disabled Veterans’ Exemption for qualifying veterans with service-connected disabilities
• Church and religious exemptions for qualifying organizations
• Welfare exemption for nonprofits and assisted living facilities (renewable per state law)
• Solar and energy efficiency property exclusions on qualifying systems

Property Tax Postponement (PTP) helps seniors, blind, and disabled homeowners delay tax payments. The state holds a lien on the property until the owner sells, transfers, or passes away. For full eligibility rules, contact the California State Controller’s Office or the Lassen County Assessor.

Lassen County Property Tax Payment Options and Deadlines

Lassen County mails secured property tax bills once a year. The bill covers the full fiscal year from July 1 through June 30, but the county splits the amount into two installments. This structure helps homeowners budget their tax payments across the calendar year.

For the 2026-2026 fiscal year, the second installment of the Lassen County secured property tax bill is due April 10, 2026, as printed on the official bill stub. Property owners should refer to their mailed bill or the Treasurer-Tax Collector’s office for the first installment due date and any applicable late penalties and costs.

The Treasurer-Tax Collector’s office oversees the actual collection of payments, which can be made online, by mail, or in person. County-tax defaulted property information and payment plans are also handled through this office.

Common Payment Methods

Property owners have several options to pay their annual Lassen County property tax bill. Each method has its own processing time and fee structure, so owners should choose the option that fits their needs best.

• Online payments through the County Tax Retriever system or county portal
• Check or money order mailed to the Treasurer’s office
• In-person visits during business hours at the Treasurer’s counter
• Escrow impound accounts handled by mortgage lenders

Property owners facing financial hardship can request a payment plan. Plans typically allow monthly payments over a set period, with interest and fees added. The Treasurer-Tax Collector’s office reviews each request on a case-by-case basis to help owners avoid default.

How to Appeal a Property Tax Assessment in Lassen County

California property owners have the right to challenge their assessed value. The appeal process in Lassen County follows the standard Assessment Appeals Board (AAB) system. The AAB operates as an independent panel that hears disputes between owners and the Assessor.

Appeals must be filed during a specific window each year. Under California rules, most regular assessments can be appealed between July 2 and November 30. The deadline depends on when the value notice was mailed, so owners should check their notice date carefully before filing.

The appeal process follows these steps:

1. File an Application for Changed Assessment with the Clerk of the Board using the standard California State Board of Equalization form
2. Pay any required filing fee at the time of submission
3. Wait for a hearing date, usually scheduled within a year of filing
4. Gather supporting evidence, such as comparable sales or appraisal reports
5. Attend the hearing and present your case to the AAB panel
6. Receive a written decision from the board by mail

Homeowners who win an appeal typically see a reduction in their assessed value. The reduction applies only to the year in question unless the Assessor agrees to a multi-year correction. If a property is over-assessed due to a factual error, refunds may be issued for prior years per state rules.

Lassen County Commercial and Agricultural Land Tax Assessment

Commercial properties in Lassen County are assessed at full market value each year. Owners of offices, retail spaces, and industrial buildings see values that reflect actual rental income and sales prices. The county uses the income approach, sales comparison, and cost approach to value commercial parcels.

Williamson Act Requirements

Agricultural land receives special treatment under the California Land Conservation Act, also known as the Williamson Act. Under this program, landowners who keep property in agricultural or open space use under a long-term contract receive a lower assessed value based on farming income rather than market value. The Lassen County Board of Supervisors has confirmed a 5-acre minimum parcel size, an agricultural or forest land assessment, and active devoted agricultural use as conditions for participation in agricultural preserves.

• Property must meet the county’s minimum parcel size for the qualifying use
• Land must be used for active farming, ranching, or timber production
• Owners must sign a contract with the county to keep the land in qualifying use

Early withdrawal from a Williamson Act contract triggers a penalty calculated as a percentage of the property’s fair market value. The contract stays in place even when the property changes hands, so buyers inherit the agreement at closing. New owners should review the contract terms before purchase.

Lassen County Property Tax Reduction Programs and Abatements

Property tax reduction programs help owners lower their annual bills through legal channels. Lassen County participates in several statewide programs, including the parent-child transfer exclusion and the disabled interspousal exclusion under Proposition 19. These programs let certain owners transfer a property without triggering a full reassessment.

Proposition 19 Transfers

Proposition 19 changed how family property transfers work in California. The new rules allow certain transfers to keep the parent’s base year value, but with limits on the new value and strict use rules.

• The property must be the primary residence of the owner or the recipient
• The transfer must happen between parent and child or between spouses
• The new assessed value is capped at a defined amount above the original assessment under state law
• Recipients must file a claim with the Assessor per the time period set by state law

Misfortune or calamity reassessments provide relief when a property suffers major damage. Owners can apply for a reduced value if fire, flood, or another disaster causes significant property damage. The reduction applies to the damaged portion for the year of the event, as administered through the Assessor’s misfortune-or-calamity reassessment application.

Lassen County Tax Lien Information and Delinquent Taxes

Delinquent property taxes in Lassen County result in a lien on the property. The lien gives the county a legal claim that must be paid before the property can be sold or refinanced. Each year of unpaid taxes adds penalties and interest to the original amount owed.

The tax-defaulted timeline follows this general structure:

1. Tax becomes delinquent after the installment due date passes
2. Penalties and fees are added per California law after delinquency
3. Property enters default status if taxes remain unpaid for the period set by state law
4. County may sell the property at a public auction to recover unpaid taxes

The Treasurer-Tax Collector’s office publishes a list of tax-defaulted properties each year. Buyers can purchase tax liens or properties through the public auction process. Lassen County’s re-offer auctions for tax-defaulted parcels are hosted on the Bid4Assets online auction platform, and bidding follows standard public auction rules. Inquiries about auction properties can be directed to the Treasurer-Tax Collector.

Lassen County Property Tax Notice Mailing Schedule

The Assessor’s office mails value notices once a year to each property owner. Notices go out between late July and early August for the upcoming fiscal year. Each notice includes the new assessed value, exemption data, and instructions for filing an appeal with the AAB.

Property owners who do not receive a notice by mid-August should contact the Assessor’s office right away. The office can verify the mailing address on file and reissue the notice if needed. Keeping the mailing address current helps ensure owners do not miss appeal deadlines.

The annual tax bill arrives separately from the value notice. The Treasurer-Tax Collector’s office mails the bill in October or November, before the first installment is due. The bill shows both installments, the total amount due, and available payment methods for the year.

Lassen County Tax Parcel Lookup Methods

Looking up a parcel in Lassen County requires a few key pieces of data. The Assessor’s portal works best with a parcel number, but address and owner name searches also work for most properties. Rural parcels may need extra steps if the address is not in the system.

Common lookup methods include:

• Parcel number search: Fastest method when the APN is known
• Property address search: Good for city lots with standard street addresses
• Owner name search: Works for properties with active ownership records
• Map book and page index: Used for older parcels without a standard APN

For remote acreage, Eagle Lake lots, Honey Lake Valley ranches, timber or grazing land, manufactured homes, private roads, and properties without a dependable mailing address, the lookup process may take several steps. Staff at the Assessor’s office can help with hard-to-find parcels over the phone or in person.

Lassen County Senior Property Tax Relief Options

California seniors have several property tax relief options available. Each program has its own age, income, and residency rules. Seniors often combine multiple programs to lower their annual tax bill to the lowest legal amount.

Common senior relief options include:

• Homeowners’ Exemption: Assessed value reduction for owner-occupied homes
• Property Tax Postponement: State-funded program that delays payment until sale or transfer
• Proposition 60: Base year value transfer within the same county for seniors
• Proposition 90: Limited base year value transfer to participating counties

To qualify for Proposition 60, the senior must meet the age and primary-residence requirements set by state law, and the new property must be of equal or lesser value. The transfer can only happen once in a lifetime. For help with applications, seniors can contact the Assessor’s office directly.

Lassen County Mobile Home Property Tax Rules

Mobile homes in Lassen County follow special tax rules based on construction and how the home is attached to the land. The Treasurer-Tax Collector handles mobile-home clearance certificates required before sale or transfer.

Key rules for mobile home owners include:

• Mobile homes on a permanent foundation are billed by the county tax system
• Mobile homes on a non-permanent foundation are billed by the California DMV
• Mobile home clearance certificates are required before sale or move (handled by the Treasurer-Tax Collector)
• Transfer of ownership requires updated registration with the appropriate agency

Mobile home park space rents are not part of the property tax bill. Space rents are paid directly to the park owner. Park owners may pass through some local property tax costs to tenants, but those charges are listed separately on the rent bill.

Lassen County Supplemental Property Tax Bills

Supplemental tax bills are issued when a property changes hands or new construction is completed. The bill covers the difference between the old assessed value and the new market value, prorated from the date of the change. The supplemental bill is separate from the regular annual tax bill.

Common triggers for supplemental bills include:

• Sale of a property at market value
• Completion of new construction or major renovation
• Adding square footage, a new room, or a new structure
• Change in ownership that ends a Prop 13 protected status

Supplemental bills are billed in one or two installments, depending on when the change happened. Each supplemental bill carries its own late penalty rules as established by state law and county policy.

Lassen County Property Tax Audit Process and Refund Eligibility

Property tax audits happen when the Assessor’s office questions the accuracy of a value claim or exemption use. The audit may cover business property statements, income reports, or exemption eligibility. The process begins with a written request for documents and ends with a formal decision letter.

During an audit, owners should:

• Respond to all document requests by the listed deadline
• Provide clear and accurate records of business activity or property use
• Keep copies of all submitted documents for personal records
• Consult a tax professional or attorney for complex cases

Refund eligibility applies when an owner has overpaid taxes due to an Assessor error. Common refund scenarios include incorrect square footage, wrong property classification, or duplicate assessments. Refund claims must be filed within the time period permitted by state law, with interest paid on qualifying refunds.

Lassen County Property Tax Statutes and Revenue Trends

California property tax law is set by the state Legislature and the California Constitution. Proposition 13, passed in 1978, remains the main law that limits property tax growth. The law caps annual increases for properties that do not change hands, and it requires a vote of the people for new local property taxes.

Other key statutes that affect Lassen County property taxes include:

• Proposition 58: Parent-child transfer exclusion (updated by Proposition 19)
• Proposition 60: Senior base year value transfer within the same county
• Proposition 90: Limited senior transfers between participating counties
• Proposition 19: New rules on disaster relief and family transfers

Statewide property tax revenues in California reached record highs in recent years. The California State Board of Equalization reported that county assessors established values on more than 13 million assessments, generating about $97.2 billion in local property tax revenue, an increase of $4.5 billion, or about 4.9%, over the prior fiscal year. Lassen County contributes a small share of this total, but rural counties have seen steady growth in line with statewide trends.

For Lassen County, the bulk of property tax revenue funds local schools, public safety, road maintenance, and county operations. Tax revenue growth each year is tied to assessed value growth, not rate increases. Voters in the county decide on most local special taxes through ballot measures each election cycle.

Contact, Local Details, and Map

The Lassen County Assessor’s office handles property valuation, exemption claims, and parcel records for the county. Property owners can visit, call, or use the online portal for most needs. The Treasurer-Tax Collector’s office handles secured, unsecured, supplemental, delinquent-tax, payment-plan, mobile-home clearance, lien, and tax-defaulted property information. The Recorder’s EagleWeb system supports public document searches.

Lassen County Treasurer-Tax Collector

The Lassen County Treasurer-Tax Collector is the official source for secured, unsecured, supplemental, and delinquent property tax information. Treasurer Taya Short oversees tax collection, payment plans, mobile-home clearances, tax-defaulted property auctions, and lien records for the county.

• Department Name: Lassen County Treasurer-Tax Collector
• Main Phone: (530) 251-8221
• Physical Address: 220 S. Lassen Street, Suite 3, Susanville, CA 96130
• Mailing Address: 220 S. Lassen Street, Suite 3, Susanville, CA 96130
• Email: lcttc@co.lassen.ca.us
• Official Website URL: https://www.lassencounty.org

Lassen County Assessor

The Lassen County Assessor is the official source for parcel data, assessed values, exemption applications, misfortune-or-calamity reassessment applications, and appeal filings in the county. The office also maintains the Assessor map-book index and CSA forms. Contact details for the Assessor’s office are available through the Lassen County government website.

• Department Name: Lassen County Assessor
• Official Website URL: https://www.lassencounty.org
• Resources: Assessor map-book index, CSA forms, and misfortune-or-calamity reassessment application

Lassen County Clerk-Recorder

The Lassen County Clerk-Recorder handles recorded documents, deeds, liens, marriage licenses, fictitious business name filings, and other public records. Property owners can search the public document system (EagleWeb) online or contact the Recorder’s office for certified copies of records. Specific address, phone, and counter hours for the Recorder’s office are published on the Lassen County Contact Us page.

• Department Name: Lassen County Clerk-Recorder
• Official Website URL: https://www.lassencounty.org/contact-us
• Document Search System: EagleWeb (access via the official Lassen County website)

Frequently Asked Questions

Lassen Property Tax matters affect every homeowner and business in the county. Knowing how to check your bill, pay on time, claim exemptions, or contest an assessment can save money and avoid penalties. The answers below focus on the most common queries and give clear steps to help you handle taxes in Lassen County.

How can I look up my Lassen County property tax bill online?

Visit the Assessor’s portal at https://lassenca.tylerhost.net/assessor/axmain.aspx. Enter your parcel number or address in the search box. The system shows the current tax bill, assessed value, and payment history. You can print the statement or save a PDF for your records. If you do not know the parcel number, use the “Owner Search” feature with your name to find the correct record within a few clicks.

What are the payment deadlines for Lassen County property taxes?

The county splits the tax year into two installments. The first installment is due by November 30 and the second by April 10. Paying after these dates adds a penalty and interest charge. Payments can be made online, by mail, or in person at the Tax Collector office located at 220 S. Lassen St., Suite 3, Susanville, CA 96130. Remember to include your parcel number on any mailed check to ensure proper posting.

Which exemptions are available for homeowners in Lassen County?

Homeowners may qualify for the Homestead Exemption, which reduces the taxable value by $7,000. Seniors can apply for the Senior Citizen Exemption if they are 65 or older and meet income limits. Disabled veterans receive a $5,000 exemption per qualifying veteran. To claim an exemption, complete the appropriate form from the Assessor’s website and submit it by the deadline listed on the county’s exemption notice.

How do I appeal a property tax assessment in Lassen County?

First, review the assessment notice for errors in the parcel’s size, use, or market value. If you disagree, file an Appeal Form with the Assessor’s office before the appeal deadline, usually in August. Attach recent sales data, appraisal reports, or photographs that support your case. After filing, a hearing will be scheduled where you can present your evidence. Successful appeals often lower the taxable value and reduce the tax bill.

What payment options does the Lassen County Tax Collector accept?

You can pay online through the county’s secure portal, by phone using a credit or debit card, by mailed check, or in person with cash, check, or card. The online system lets you set up a recurring payment or a one‑time payment. When paying by mail, send the check to the Tax Collector’s address and write your parcel number on the memo line. In‑person payments are accepted during normal office hours, and the staff can print a receipt on the spot.