Flathead County Property Assessor 2026: Search & Tax Records

Flathead County, Montana • property, parcel, value & tax guide

Find the Correct Flathead Property Record First

Start with Flathead County iTax for owner, address, Assessor Number, Geo Code and tax-account searches. Use Montana Property.MT.Gov when you need appraisal value, classification or property characteristics.

Use the county GIS for parcel maps and zoning, the Plat Room for land/ownership research, and Clerk & Recorder when you need the actual deed or recorded document rather than a tax-account display.

Choose My Search Search Step by Step 2026 Appeal Status

iTax search rule Use 1 criterion Extra search fields can produce incomplete results.

2025–2026 valuation date Jan. 1, 2024 Use this date for real-property valuation evidence in the current cycle.

Late AB-26 review June 1 passed A newly issued notice can still carry its own 30-day deadline.

7-payment request Sept. 30, 2026 Qualifying primary-residence owners can request the alternative schedule.

“Flathead County Assessor” Means Several Different Offices

Montana does not place every property function in one county assessor office. The Montana Department of Revenue handles appraisal, classification and taxable value. The Flathead County Treasurer Property Tax Office prepares bills and collects taxes. The Plat Room maintains land information and tax-mailing-address functions. The Clerk & Recorder records deeds and other instruments, while GIS provides parcel mapping.

Independent guide: AssessorPropertySearch.org is not Flathead County or the Montana Department of Revenue. It does not store the official parcel record, accept taxes, change property values or create legal title records.

Choose the Correct Flathead County Property Tool

Owner, address, tax account or payment

Use Flathead iTax for Assessor Number, owner name, property address, Geo Code, subdivision/block/lot, section-township-range, tax amounts and payments.

Official county-linked tax system Search Flathead iTax

Appraisal value or classification

Use Montana Property.MT.Gov for property characteristics, appraisal values, Assessment Code, property number and state classification information.

Official Montana Department of Revenue Search Property.MT.Gov

Parcel map, zoning or survey links

Use county GIS when you need map-based parcel research, ownership layers, school/fire districts, zoning, appraisal links or surveys of record.

Official Flathead County GIS Open GIS Mapping Portal

Land ownership and Plat Room records

Use the Flathead Land Information System when you need Assessor Inquiry, land ownership, plat/survey research or related parcel-information support.

Official Flathead County Plat Room Open Land Information System

Deed, mortgage, lien or recorded instrument

Use Clerk & Recorder records when you need the recorded legal document itself instead of an owner name appearing on a tax account.

Official Flathead County Clerk & Recorder Recorded Property Records

Delinquent tax or tax lien

Use the Treasurer’s delinquent-tax pages for current payoff, interest/penalty rules, tax-lien timing and assignment information.

Official Flathead County Treasurer Delinquent Tax Help

How to Search Flathead County Property Records

The fastest workflow is to use one iTax search field, verify the correct parcel, save its permanent identifiers and only then move to appraisal, GIS or deed research.

Choose one iTax search criterion

Pick Owner Name, Assessor Number, Property Address, Geo Code, Subdivision or Section-Township-Range. Do not fill several search fields at once.

Run the simplest search first

Use a surname for owner lookup, a known physical address for address lookup, or the exact Assessor Number/Geo Code when available.

Verify the matching parcel

Compare owner display, physical address, legal description, subdivision or rural land description before relying on the result.

Save Assessor Number and Geo Code

These IDs make repeat searches and cross-checking between iTax, GIS and DOR much easier.

Open Property.MT.Gov for value questions

Use the Montana DOR record when the issue involves appraisal, classification, square footage, bedroom/bath count or valuation appeal.

Use GIS or Clerk & Recorder for the final task

GIS is best for map/location research; recorded-document systems are best for deeds, mortgages, liens and official instruments.

Most important iTax search rule: the official portal warns that adding extra criteria can produce an incomplete search. Clear unused fields before trying another method.

Search Flathead County Property Records by Owner Name

Owner-name lookup is useful when you do not know the Assessor Number, but it also creates the most wrong-result risk.

Start with the surname

Try a surname such as Jones. This is useful when you are unsure how a first name, middle initial, trust or joint owner is formatted.

Then narrow the name

The official iTax example uses Jones Steve. After results appear, match the physical address and legal description before choosing a parcel.

When iTax owner search does not work

Try surname only.
Try the physical address instead.
Search Property.MT.Gov by name and filter to Flathead County.
Check for trust, LLC or estate ownership.
For a recent transfer, search the prior owner and verify the recorded deed separately.

Search by Address, Assessor Number, Geo Code or Legal Land Clue

What you have	Best search	Micro-level tip
Owner name	iTax Owner Name	Use surname first; do not combine with another criterion.
Physical address	iTax Property Address	Use the property location, not the owner’s mailing address.
Assessor Number	iTax / Land Information / GIS	Enter it exactly; it is different from DOR’s Assessment Code.
Geo Code	iTax / GIS / DOR	Use the complete identifier shown on the property record or appraisal notice.
Subdivision, block or lot	iTax subdivision search	Choose the subdivision first and add block/lot only as needed.
Section / Township / Range	iTax Sec-Twp-Rge	Useful for rural acreage without a reliable street address.
Assessment Code	Property.MT.Gov	Use the state DOR search rather than the county Assessor Number box.

Flathead County Property Identifier Decoder

Assessor Number

County-facing parcel identifier used across tax and land-information systems. Save it after finding the correct parcel.

Geo Code

The AB-26 instructions describe the Geocode as the statewide property-identification number found on the classification and appraisal notice.

Assessment Code

DOR identifier found on the classification and appraisal notice. Use it in state appraisal searches and review paperwork.

Subdivision / Block / Lot

Useful for platted properties and for matching tax records to plats, surveys and recorded instruments.

Section / Township / Range

Useful for rural land and parcels that do not have a conventional street address.

Recorded document number

Identifies the deed or other recorded instrument. It is not interchangeable with a tax or appraisal identifier.

Flathead County Assessor Parcel Search Map and Zoning Lookup

The Interactive Mapping Application is useful when text search is not enough or when you need location, zoning, district or survey context.

Open the Flathead GIS Mapping Portal

Choose the county’s Interactive Mapping Application.

Search the address

Enter the property address in the main search field. The matching parcel should highlight when found.

If there is no usable address, use Property Search

The county zoning instructions say you can search by Assessor Number, owner, subdivision, Tract ID or Geo Code.

Open Parcel Information Report

Use the report workflow and select the subject parcel on the map to expose available property and district information.

Expand zoning and linked parcel information

Use County Zoning and other parcel layers only after confirming you have selected the correct property.

Boundary warning: GIS parcel lines are not a legal boundary determination. Use recorded plats/deeds and a qualified surveyor for fence, easement, encroachment or boundary disputes.

Official Flathead County GIS Open Parcel Mapping

What the Flathead Property Record Shows—and What It Does Not

Field	Useful for	Limit
Owner	Identifying the party carried on the tax/appraisal account.	A recent recorded deed may not yet appear in every database.
Physical property address	Locating an improved parcel.	Rural or vacant parcels may not have a useful situs address.
Mailing address	Understanding where tax correspondence is sent.	It is not necessarily the property location.
Market value	Understanding the DOR appraisal.	Market value does not equal the final property-tax bill.
Taxable value	The value to which mill levies are applied.	The classification percentage is not the final effective tax rate.
Legal description	Matching parcel, plat and deed research.	Use the recorded document for legal/title purposes.
Tax/payment data	Checking installments, payment history and delinquency.	New online payments can take time to appear.

Payment refresh: the iTax cart warns that online payments can take up to about 30 minutes to appear. Keep the confirmation and do not immediately pay the same bill twice.

Data-use limit: iTax itself says its data accuracy is not guaranteed. Verify a deed, boundary, payoff or appeal deadline with the office responsible for that record before making a legal or financial decision.

Why the Property Sale Price May Not Be Public

Montana is a non-disclosure state for real-estate sale-price information. A deed can be recorded and available for research without the purchase price being displayed as a public county sales field in the way users may expect from other states.

Do not confuse “no sale price” with “no deed.” Search the recorded document separately when you need proof of the transfer.

2025–2026 Flathead County Appraisal Cycle

January 1, 2024 — valuation date

Residential, commercial, industrial, agricultural and forest land in the 2025–2026 cycle is valued as of this date.

2025 — appraisal notices issued

Montana DOR issued classification and appraisal notices for the 2025–2026 cycle.

30 days from notice — ordinary AB-26 window

Owners disputing value or property characteristics normally had 30 days from the date on the notice to request informal review.

June 1, 2026 — special late-review cutoff

Late requests could be filed through June 1, but an approved adjustment from that late request applies to Tax Year 2026 only.

Current situation

The general June 1 opportunity has passed, but a new appraisal notice or a DOR determination letter can create a new 30-day appeal period.

Comparable-sale date mistake: do not automatically build a 2026 appeal using January 1, 2026 sales. For the current valuation cycle, the AB-26 materials direct owners to January 1, 2024.

2026 Homestead and Long-Term Rental Reduced Tax Rate

Montana’s new 2026 structure gives qualifying principal residences and long-term rentals reduced classification rates. Qualification depends on the property’s use and enrollment status—not merely on the owner mailing address.

Principal residence / homestead

Owner generally lives in the property for at least 7 months of the year.
Property taxes must be current.
Eligible ownership generally includes an individual, couple or grantor revocable trust.
Corporate entities, LLCs, partnerships, corporations and irrevocable trusts generally do not qualify for the homestead rate.

Long-term rental

Rental period is 28 days or more at a time.
Property is rented for at least 7 months of the year.
The rental is the tenant’s residence.
Property taxes must be current.
LLC, corporate and trust ownership can qualify for the long-term-rental rate when the other rules are met.

Current enrollment status: DOR’s current page says the application period for the 2027 tax year is already open, from May 4, 2026 through March 1, 2027. Owners should verify enrollment rather than assume a property automatically has the reduced rate.

Mixed-use property: if a principal-residence parcel also contains separately rented dwelling units, the owner may need to enroll the rental portion separately to receive the long-term-rental treatment on that value.

Official Montana DOR homestead / rental rules Check Homestead Enrollment Rules

Montana 2026 Property Classification Rates

Qualifying primary residence or long-term rental

2026 market-value portion	Classification rate	How it works
First $378,000	0.76%	Applied only to the first value tier.
$378,001–$756,000	0.90%	Applied only to the value within this tier.
$756,001–$1,511,999	1.10%	Applied only to this portion of qualifying value.
$1,512,000+	1.90%	Applied to the portion above the threshold.

Tiered means incremental. A $500,000 qualifying home is not taxed at 0.90% on all $500,000 for classification purposes; the first tier and the next tier are calculated separately.

Other common property types

Property use	2026 rate structure
Second home	Generally 1.90% flat residential classification rate.
Short-term rental	Generally 1.90%.
Vacant residential lot	Generally 1.90%.
Long-term multifamily rental	1.10% flat rate under the current 2026 DOR guidance.
Commercial / industrial	Current 2026 DOR structure uses 1.50% below the specified statewide-median threshold and 1.90% at/above the higher tier.

Official Montana DOR 2026 tax information Review 2026 Tax Structure

Market Value, Taxable Value and Mill Levies Are Different

Market Value × Applicable Classification Rate = Taxable Value
Taxable Value × (Combined Mills ÷ 1,000) = General Property Tax

Example: $600,000 qualifying primary residence

Step	Illustrative calculation
First $378,000	$378,000 × 0.76% = $2,872.80 taxable value
Remaining $222,000	$222,000 × 0.90% = $1,998.00 taxable value
Illustrative taxable value	$4,870.80

Do not turn that taxable value into an estimated bill without the correct mills. City, school, fire and other taxing jurisdictions affect the combined mill levy, and special assessments can appear separately.

Can You Still Appeal a Flathead County Property Value in 2026?

The general late-review date has passed, but not every property owner necessarily has the same controlling deadline.

Original appraisal notice

AB-26 informal review normally had to be submitted within 30 days of the date on the classification and appraisal notice.

Missed original deadline

The special late-review opportunity ran through June 1, 2026. An adjustment from a late request applies to Tax Year 2026 only.

New notice or determination

A DOR determination letter or newly issued notice can create a separate 30-day CTAB filing window. Read the date on the document you actually received.

Do not call the Treasurer to change the appraised value. Value/classification disputes belong with Montana DOR and, when applicable, the County Tax Appeal Board.

Official Montana DOR appeal process Check Current Appeal Route

Form AB-26: What the 2026 PDF Requires

Form AB-26 V10 3/2026 is the Montana DOR Request for Informal Classification and Appraisal Review.

Identify the property

Property owner and mailing address.
Contact phone and email.
Physical property address.
County.
Geocode.
Assessment Code.
Property type.
Signature and date.

State a usable review reason

Incorrect square footage.
Incorrect bedroom/bath count.
Other physical-characteristic error.
Purchase evidence near the valuation date.
Comparable sales/listings.
Fee appraisal.
Construction/remodel cost information.

“My taxes are too high” is not a sufficient valuation explanation. DOR needs facts that allow appraisal staff to evaluate the property record or market value.

Valuation evidence tied to January 1, 2024

Evidence	AB-26 guidance
Subject property purchase	Purchase within six months of January 1, 2024, supported by the executed buy/sell agreement.
Fee appraisal	Appraisal within six months of the January 1, 2024 valuation date.
Comparable sales/listings	Use evidence relevant to the January 1, 2024 valuation date.
Construction/remodel	Provide builder cost-breakdown information when relevant.
Income property	Commercial/industrial owners may need detailed rental income, expenses, income statements and related information.

Inspection and representation

DOR decides whether an on-site inspection is needed.
You can request to be present if an inspection is required.
The form warns that DOR cannot make an inspection-based adjustment if department employees are denied required access.
An agent or attorney can file for the owner, but required power-of-attorney documentation must accompany the filing.
A separate AB-26 is required for each separately assessed parcel.

Official Montana DOR AB-26

AB-26 Instructions Open AB-26 PDF

Request DOR’s Information Packet Before Building the Appeal

This is one of the most useful parts of AB-26 because it can show the property facts and model evidence DOR actually used.

Information packet can include

Property Record Card.
Property characteristics in DOR’s file.
Photo and building sketch when available.
Valuation method/data used by DOR.
For sales-comparison valuation, the three to five model sales most comparable to the property.

Additional data options

Residential sales data for the market-model area.
Vacant-land model sales data.
Postal delivery options for certain data.
State file-transfer delivery where the form allows it.

Confidential sales data: the AB-26 packet can contain confidential sale information. The owner—and representatives or experts who receive it—must complete the applicable confidentiality agreement and cannot freely redistribute the data.

Practical strategy: if your main question is “which comparables did DOR use?”, request the information packet before assembling dozens of unrelated sales. It is usually more useful to rebut the actual model evidence than to submit an unfocused list.

Build a Focused Flathead Property Value Case

Factual correction case

Square footage.
Bedroom/bath count.
Building quality or condition.
Improvement type.
Property damage or deferred maintenance.

Market-value case

Subject sale near January 1, 2024.
Fee appraisal near the valuation date.
DOR model comparables.
Comparable sales/listings.
Construction cost or income evidence when relevant.

One-page evidence index

Owner name and property address.
Assessor Number, Geo Code and Assessment Code.
DOR’s current value.
Your requested value.
Specific reason for the requested change.
Numbered exhibits and one sentence explaining what each proves.

Flathead County Property Tax Bills and Payment Workflow

The Treasurer bills and collects taxes after receiving valuation and taxing information from the state/local process.

January 1 — ownership snapshot

Tax bills reflect ownership information as of January 1 of the taxing year, so a later sale may leave the prior owner on that year’s statement.

July–September — tax data preparation

Real-property information is prepared for the annual billing cycle.

October — real-property bills mailed

Flathead County distributes the annual real-property statements.

November 30 — normal first installment

The first half is normally due at the end of November.

May 31 — normal second installment

The second half is normally due the following May.

No property-tax payment by phone. Flathead County says the Property Tax Office does not take property-tax payments over the phone.

No bill received? Failure to receive a tax statement does not remove the obligation to pay. Search iTax or contact the Treasurer before the deadline.

Before paying online

Match the Assessor Number.
Match the physical property.
Confirm the tax year.
Confirm whether you are paying the first half, second half or full balance.
Save the payment confirmation.
Allow the portal time to update before trying another payment.

Official Flathead County Property Tax Office Review Tax Payment Information

2026 Alternative Seven-Payment Schedule for Primary Residences

A qualifying primary-residence owner can request a different payment schedule instead of the normal two property-tax installments.

Who

Owner of a qualifying primary residence.

2026 deadline

September 30, 2026.

Payment pattern

Seven monthly payments between November 30 and May 31 instead of two installments.

Current action window: as of August 17, 2026, the September 30 application deadline has not passed. Do not wait for a November delinquency to ask for this schedule.

Official Flathead County alternative schedule Find Alternative Payment Application

If You Appeal, Do You Still Have to Pay the Taxes?

Yes. The AB-26 instructions state that to preserve refund and accrued-interest rights for disputed taxes, the owner must pay the disputed taxes under protest and file the written protest with the County Treasurer by the tax due date.

Do not treat an appraisal appeal as a payment extension. If an AB-26, CTAB, MTAB or court dispute is pending, ask the Treasurer how to make the required written protest before the applicable tax deadline.

Flathead County Delinquent Property Taxes

Stage	What happens
November 30	Normal first-half due date.
December 1	Unpaid first half becomes delinquent.
May 31	Normal second-half due date.
June 1	Unpaid second half becomes delinquent.
Late June	Notice of pending tax lien is published.
Early August	Tax lien can attach to unresolved delinquent property.

Penalty and interest

Flathead County states that delinquent property tax accrues 5/6 of 1% interest per month plus a one-time 2% penalty.

No second May statement: keep the original real-estate tax bill because the county does not send a second statement just for the May 31 installment.

Get a current payoff. Interest changes as time passes, so do not pay an old screenshot amount without confirming the current balance.

Official delinquent-property-tax guidance Check Delinquent Taxes

Tax Lien vs Delinquent Tax List vs Assignment

These are not interchangeable statuses.

Delinquent account

Taxes were not paid by the applicable due date and interest/penalty are accruing.

Tax lien

After the statutory notice process, the county can attach a tax lien to qualifying delinquent property.

Tax-lien assignment

A purchaser may become involved through the statutory assignment process. The Treasurer says assignment business is not conducted during the tax-season months of May and November.

Researching a “tax sale” property? First check the actual parcel’s current delinquent status and lien history. Do not assume every property appearing in an unpaid-data file is immediately available for purchase.

Official Flathead County tax-lien information Review Tax Lien Sales

What the Flathead County Unpaid Tax Roll Is Really For

The downloadable Unpaid Tax Roll is mainly an institutional batch-payment data file for banks, mortgage servicers and tax-payment services. It is not the best interface for a homeowner simply trying to check one parcel.

Individual owner

Use iTax to view one property’s current bill, payment or delinquent status.

Bank / servicer / payment processor

The Unpaid Tax Roll contains fixed-width batch data and changes frequently, especially around the annual billing cycle.

File-status warning: the county says the unpaid file can change daily, and early billing-cycle files may change significantly. Batch users should download the newest file rather than reuse an older copy.

Official Flathead County Unpaid Tax Roll Review Unpaid Tax Roll

Search Flathead County Deeds and Recorded Property Records

Use the recording system when you need the legal instrument rather than a tax-account owner field.

1984 and later

Flathead County uses iDocMarket for documents recorded in 1984 or later. The basic index can be searched, while image access/printing uses the portal’s current paid-access structure.

Before 1984

Use County Record Archives or research older records through the county Public Research Library.

Address-to-deed workflow

Identify the parcel first

Use iTax/GIS to save owner, Assessor Number, Geo Code, address and legal-description clues.

Estimate the recording period

Use the approximate purchase, refinance, lien or ownership-change date to narrow the document search.

Choose the correct archive

Use iDocMarket for 1984-forward documents and County Record Archives for older records.

Match the legal description

Do not rely on a matching surname alone. Compare the parcel description to the property you are researching.

Order only the copy you need

Choose a standard copy for research or a certified copy when certification is actually required.

Current county copy fees

Record copy	Current in-person/mail fee
Non-certified document	$0.50 first page + $0.25 each additional page per document.
Certified document	$2 certification fee + applicable copy fees.
Full-size Certificate of Survey	$3.
Full-size plat	$5.

Portal login problem: the county says an unverified email is the most common problem with both online records databases. Verify the account email before repeatedly resetting the password.

Official Flathead County public records Search / Request Recorded Records

Change Ownership, Record a Deed or Correct the Tax Mailing Address

Ownership change

A real-property ownership change generally requires the appropriate transfer document to be recorded. If the document contains a legal description, the Plat Room must approve the description under the county’s recording workflow.

Tax mailing-address change

The Plat Room handles ownership/land-information functions and mailing-address assignment/update questions. Do not assume changing a billing address with another agency updates the county property record.

Recording a deed

Prepare the correct deed or transfer instrument.
Complete signatures and notarization when required.
Have the legal description approved through the county workflow when applicable.
Flathead County states that deeds must be accompanied by a properly executed Realty Transfer Certificate.
The Realty Transfer Certificate accompanies the deed; it does not transfer ownership by itself.

Official Flathead County recording requirements Review Recording Requirements

Flathead County Property Search Troubleshooting

Problem	Likely cause	Best next step
Owner search finds nothing	Name format, trust/LLC or ownership update.	Try surname only, address, Property.MT.Gov or prior owner.
iTax results look incomplete	Multiple criteria were entered.	Clear the form and search with one criterion only.
Address is missing	Rural/vacant parcel or alternate situs format.	Search Assessor Number, Geo Code, owner, subdivision or Section-Township-Range.
Need the parcel visually	iTax is not map-first.	Open Flathead GIS.
Recent buyer not shown	Recording and tax/appraisal systems update on different schedules.	Verify the recorded deed first, then contact the appropriate land/ownership office.
Sale price is missing	Montana non-disclosure rules.	Search the deed separately; do not assume no recorded transfer exists.
Appraised value appears wrong	Property-characteristic or valuation-model disagreement.	Review Property.MT.Gov and the exact DOR notice/appeal deadline.
Tax bill seems high	Classification, mills, special assessments or delinquency may be involved.	Separate market value, taxable value, classification rate and mills.
Online payment still shows unpaid	Posting delay.	Keep confirmation and allow processing time before attempting another payment.
Need old deed	Wrong archive.	Use iDocMarket for 1984+ and County Record Archives for earlier documents.
Need septic/land-use research	Property tax record does not contain every permit.	Use the county land-research workflow after collecting owner, Assessor Number, parcel size, Tract ID and survey/subdivision clues.

Flathead Property Offices and What to Ask

Office	Use it for	Current contact
Montana DOR Kalispell Field Office	Appraisal, classification, characteristics, taxable value and AB-26.	100 Financial Drive, Suite 210, Kalispell, MT 59901 (406) 758-5700 Mon–Fri 9:00 AM–4:00 PM
Flathead County Property Tax	Tax bills, payments, delinquency and current payoff.	290 A North Main, Kalispell, MT 59901 (406) 758-5680
Flathead County Plat Room	Land ownership, surveys, plats and tax-mailing-address questions.	800 South Main St., Room 105, Kalispell, MT 59901 (406) 758-5510
Clerk & Recorder	Deeds, mortgages, liens, recording and document copies.	800 S. Main St., Room 114, Kalispell, MT 59901 (406) 758-5526
Flathead County GIS	Parcel mapping, geographic data and map questions.	800 South Main St., Room 203, Kalispell, MT 59901 (406) 758-5540

Appraisal call script

“I am calling about property [Assessment Code / Geo Code]. I believe the record may be incorrect regarding [specific characteristic or value]. What review or appeal deadline applies to my notice?”

Tax call script

“I am calling about Assessor Number [number] for tax year [year]. Please confirm the current [balance / installment / payment / delinquent payoff] and the date through which the payoff is valid.”

Plat Room script

“I am researching Assessor Number / Geo Code [number] and need help with [ownership / mailing address / survey / plat / legal land information].”

Official Flathead County Property Action Links

Use these after identifying the correct task above rather than opening several portals at once.

Tax property search

Owner, address, Assessor #, Geo Code, subdivision and taxes.

Flathead iTax

State appraisal search

Value, classification and property characteristics.

Property.MT.Gov

Parcel map

GIS parcel, zoning and district research.

GIS Portal

Land information

Assessor inquiry and Plat Room land records.

Land Information

Appraisal appeal

AB-26 informal review and formal appeal routing.

DOR Appeals

2026 property-tax rules

Residential, rental, commercial, agricultural and forest classification rates.

2026 Montana Tax Rules

County tax payments

Billing, installments and alternative payment schedule.

Property Tax Office

Delinquent taxes

Penalty, interest, lien timeline and payoff help.

Delinquent Tax Page

Recorded deeds

Deeds, mortgages, liens and historical document access.

Public Records

Before You Pay, Appeal or Rely on a Property Record

Confirm the property address.
Confirm Assessor Number and Geo Code.
Check whether owner information reflects the intended tax year.
Separate market value from taxable value.
Confirm the property’s 2026 classification/use.
Verify homestead or long-term-rental enrollment where applicable.
Use January 1, 2024 when evaluating the 2025–2026 real-property valuation cycle.
Read the exact date on an appraisal notice or determination letter.
Get a current delinquent payoff before sending money.
Use recorded deeds/plats and professional survey work for legal title/boundary questions.

Flathead County Property Assessor Search FAQs

What is the official Flathead County assessor property search?

For county tax-account searches, use Flathead iTax. For state appraisal, classification and property-characteristic information, use Montana Property.MT.Gov. Montana DOR performs the appraisal function rather than a single Flathead County assessor office.

Can I search Flathead County property records by owner name?

Yes. Flathead iTax has an Owner Name search. Start with the surname or a format such as “Jones Steve,” and use only one search criterion at a time. Verify the physical address and legal description before relying on the result.

Is the Flathead County property search free?

The public iTax and Montana Property.MT.Gov searches do not require you to buy a private property-owner report. Recorded-document image portals are different and can charge for document-image access or printing.

Where can I search a Flathead County parcel on a map?

Use the Flathead County GIS Mapping Portal. The county’s mapping workflow supports address searches and property searches using Assessor Number, owner, subdivision, Tract ID or Geo Code. GIS parcel lines are not legal surveys.

Who determines Flathead County property value?

The Montana Department of Revenue Property Assessment Division determines appraisal, classification and taxable value. The Flathead County Treasurer uses the resulting tax data to prepare and collect property taxes.

What valuation date applies to Flathead County property in the 2025–2026 cycle?

For residential, commercial, industrial, agricultural and forest property, Montana DOR’s current AB-26 materials state that the valuation date is January 1, 2024.

Can I still appeal my Flathead County property value in August 2026?

The general June 1, 2026 late informal-review deadline has passed. A new classification/appraisal notice or a DOR determination letter can still carry its own 30-day filing deadline, so use the date on the specific document you received.

How do the new 2026 Montana primary-residence tax rates work?

Qualifying homesteads and long-term rentals use incremental classification-rate tiers: 0.76% on the first $378,000 of market value, 0.90% on the next tier, 1.10% on the next tier and 1.90% on value above the top threshold. These rates create taxable value; mill levies are applied afterward to calculate general property tax.

How much are penalties on delinquent Flathead County property taxes?

Flathead County states that delinquent property tax accrues interest at 5/6 of 1% per month plus a one-time 2% penalty. Contact the Treasurer for the current payoff because the amount changes over time.

Where do I find a Flathead County deed?

Use Flathead County Clerk & Recorder public records. The county uses iDocMarket for documents recorded in 1984 or later and County Record Archives or its Public Research Library for older documents.

Use the Right Record Before Taking Action

Start with Flathead iTax for the county tax account and save the Assessor Number and Geo Code. Move to Property.MT.Gov for appraisal, GIS for parcel mapping, the Plat Room for land-information questions, Clerk & Recorder for deeds and the Treasurer for payment or delinquency.

Before paying, appealing or relying on a property record for a legal or financial decision, verify the current identifier, tax year, property classification and controlling official deadline.