Natrona County Property Assessor 2026: Search & Tax Records

Natrona County Wyoming Property & Tax Records Guide

Search Natrona County Property Records, 2026 Assessments, Parcel Maps & Taxes

Natrona County’s Assessor property search combines current ownership and building characteristics with account, parcel, legal-description, subdivision and valuation information. A property can be searched by street address, owner, account number, legal description, parcel number, subdivision or property type, while the county’s GeoSMART and Assessor mapping tools add geographic context.

The 2026 cycle also has several unusually important Wyoming property-tax rules. Assessment Notices were mailed April 27 and the May 27 valuation-review deadline has passed. Owner-occupied residential relief expanded through several programs, including a 25% exemption application, the temporary long-term homeowner 50% exemption and an automatic residential tax-growth cap. Meanwhile, the actual 2026 tax bills will not be mailed until on or before October 10, with first-half payment due November 10.

Owner, address, account, parcel & legal lookup
2026 market value, characteristics & estimated tax
25%, 50%, veteran & residential-cap relief
Tax bills, GeoSMART, deeds & document alerts
County Assessor Tammy Saulsbury
Assessor phone 307-235-9444
Assessor office 200 N Center, Room 140
County Treasurer Tom Doyle
Last reviewed August 12, 2026
Current August 2026 property status

The 2026 Value Is Available — The 2026 Tax Bill Is Not Yet Due

Assessment side: 2026 Notices of Assessment were mailed April 27, 2026. The 30-day deadline to request a valuation review and make initial contact with the Assessor was May 27 at 5:00 p.m.
Tax-bill side: Natrona County’s Treasurer mails property-tax bills on or before October 10 after receiving the certified tax roll. The first installment will be due November 10.
Do not mistake an “Estimated 2026 Tax” on the assessment notice for an amount currently payable. Final mill levies are set later in the year, and the Treasurer—not the Assessor—issues the actual property-tax bill.
Current tax-payment choice once the 2026 bill arrives: first installment by November 10 and second installment by May 10, 2027, or pay the entire tax by December 31, 2026.
Use the right Natrona County department

Assessor, Treasurer, Clerk or GIS?

County Assessor

  • Fair market value
  • Assessed value
  • Property characteristics
  • Assessment review
  • Veteran / homeowner exemptions
  • Agricultural classification

County Treasurer

  • Actual tax bills
  • Installment payments
  • Online payments
  • Payment status
  • Delinquent taxes
  • Tax sale

County Clerk

  • Deeds
  • Mortgages
  • Real-estate contracts
  • Subdivision plats
  • Survey records
  • Document alerts

GIS / Mapping

  • GeoSMART maps
  • Assessor mapping
  • Parcel context
  • Aerial imagery
  • Zoning-map context
  • Statewide parcel viewer
The Assessor does not establish zoning. Natrona County specifically warns that Assessor land classifications exist for valuation purposes and do not determine or enforce zoning.

Choose the Natrona County Property Task You Need

Find a parcel Search street address, owner, account number, legal description, parcel number, subdivision or property type.
Review 2026 value Check current property characteristics and estimated valuation for the 2026 assessment year.
Check relief Determine whether the parcel received the homeowner, long-term homeowner, veteran or residential-cap treatment.
Use parcel mapping Open GeoSMART or the Assessor Mapping Tool for tax-parcel and geographic context.
Check taxes Use the Treasurer for the actual bill, payment status and delinquent balance.
Find a deed Use iDoc Market or historical Clerk records to verify recorded ownership documents.

Jump to Your Natrona County Property Task

Natrona-specific search syntax

Property Search Tips That Prevent “No Results”

Street name only Search the road name without street direction. For example, do not include “W” or “West.”
No street type The Assessor tells users not to include terms such as Avenue, Ave, Street or St in the Street Name field.
Use partial spelling If you are unsure of the exact spelling, enter only the first few characters of the street name.
Person vs company Select the correct owner type before searching; a corporate owner should not be searched as a person.
Parcel for precision A 14-digit-style parcel identifier can provide a cleaner exact match than a common owner name.
Condo or exempt property Natrona directs users with condominium or exempt-property questions to call the Assessor at 307-235-9444.
Example: for 1131 W 11th St, search street number 1131 and street name 11TH rather than entering the full formatted address.

How to Read a Natrona County Property Record

Record field What it means What to verify
Property Address Physical situs address where one exists. Vacant land may show no normal street address.
Ownership & Mailing Owner and mailing details reflected by the Assessor. Use recorded deeds when legal ownership matters.
Account Type Residential, commercial, vacant land or other assessment category. This is an assessment classification, not necessarily zoning.
Account # County Assessor account identifier, often beginning with a letter such as R. Save it for future valuation research.
Parcel # Parcel mapping identifier. Use it across maps and property research.
LEA Local Economic Area used for valuation analysis. Useful when understanding comparable market areas.
Tax District Taxing-district combination assigned to the property. Different districts can have different combined mill levies.
Legal Description Subdivision, block, lot or other legal-description information. Compare with the recorded deed for legal use.
Land Information Land type, acreage and square footage. Use deed/survey when exact boundary or acreage matters.
Improvement Information Building type, occupancy, HVAC, roof, rooms, square footage, year built and other appraisal characteristics. Errors here can materially affect valuation.
Garage / Basement / Porches Additional improvement characteristics used in the mass-appraisal record. Check whether areas are correctly measured and described.
Property is valued as of January 1 each year

How Natrona County Determines Property Value

1. Discover & list Assessor staff maintain the parcel, land, ownership and building-characteristic record.
2. Market evidence Natrona says valid sales occurring within the county are used to calculate fair value.
3. Property characteristics Square footage, construction, finished areas, outbuildings and physical condition are reviewed.
4. Assessment & tax estimate The Notice of Assessment reports market value, assessed value, applicable residential exemptions and estimated tax.
Improvement-cost method: Natrona’s field appraisal page explains that structures can be valued using Replacement Cost New Less Depreciation, with cost information from Marshall & Swift, measurements and depreciation.
Annual valuation: Wyoming requires taxable property to be listed, valued and assessed as of January 1 each year.

Why a Natrona County Appraiser May Inspect Your Property

Building permits Permit activity can trigger review of additions, remodeling or new construction.
Sales follow-up Assessor staff use available sales information to help maintain accurate market records.
GIS and aerial imagery Natrona lists GIS and EagleView oblique imagery among tools used to review property.
During a 2026 valuation review: if a field inspection has not occurred within the prior two years, Natrona says Field Appraisers will conduct a physical inspection as part of the review process.
GeoSMART + Assessor Mapping Tool

Natrona County GIS & Parcel Maps

Natrona County GIS combines Assessor data, roads, zoning, aerial photography and other government information. The county lists both GeoSMART and a separate Assessor Mapping Tool among its interactive applications.

GeoSMART Interactive Natrona County, Casper, Bar Nunn, Evansville and Mills mapping resources.
Assessor Mapping Map content focused specifically on Assessor parcel data.
Statewide Parcel Viewer Wyoming statewide ownership mapping provides additional parcel context.
Energy & Resource Context County GIS also links to Wyoming natural-resource and energy mapping resources.
Parcel map is not a survey. Natrona’s Assessor Mapping Department states that it does not survey property. Lines are transferred from filed deeds and shown as representations. Use a professional surveyor for exact parcel-line location.
Cadastral map: the Assessor describes this as a map showing legal ownership for assessment purposes and as a foundational layer used in valuing property.
2026 review deadline passed May 27

Natrona County 2026 Property Valuation Review & Appeal

April 27 2026 Notices of Assessment mailed.
Review Profile Check property facts and value.
May 27 Deadline for initial review contact.
Determination Updated value or No Change letter.
Formal Appeal Follow instructions for evidence exchange and administrative hearing.
2026 first-level deadline is closed. Taxpayers had 30 days from the April 27 postmark, and reviews had to be received by the Assessor no later than 5:00 p.m. May 27, 2026.

What Natrona reviews first

  • Square footage
  • Construction type
  • Finished area
  • Outbuildings
  • Property damage
  • Recent improvements
  • Physical inspection history
  • Market evidence
Review process: Natrona says valuation-review requests normally must begin in person. An out-of-town property owner should contact the Assessor for instructions.
Email is not an appeal filing method. Natrona specifically states that reviews and appeals are not accepted by email.
After review: the owner receives either a Notice of Determination reflecting an updated fair value/estimated 2026 tax or a No Change letter explaining the option to continue into formal appeal.
“I am reviewing Natrona County account __________ / parcel __________. My 2026 record shows __________ square feet, __________ improvements and fair value __________. I believe the record is inaccurate because __________. Since the May 27 review period has passed, please tell me whether this is a correctable factual record issue or what future statutory remedy applies.”
Major Wyoming relief changes for 2026

Natrona County 2026 Property-Tax Exemptions & Caps

25% Owner-Occupied Home Exemption For 2026 and future years, Natrona says this program is limited to qualifying owner-occupied residences and required an online affidavit. The 2026 application deadline was March 1 and is closed.
50% Long-Term Homeowner Exemption Temporary 2025–2026 program for qualifying homeowners age 65+ who have paid Wyoming property tax for at least 25 years. It applies to the primary residence and associated land up to 35 acres.
4% Residential Tax-Growth Cap Natrona says the cap on annual property-tax increases applies automatically to qualifying single-family homes and associated land; no application is required.
Veteran 2026 Veteran Exemption Natrona says the exemption amount doubled for 2026, producing approximately $400 of property-tax relief or up to about $180 toward vehicle registration for qualifying veterans.
25% exemption deadline: Natrona’s updated March 2026 guidance states that the March 1 deadline has passed and the Assessor cannot accept further 2026 applications.
50% long-term homeowner deadline: the application deadline was the fourth Monday in May. Even homeowners who received it in 2025 had to return a 2026 recertification affidavit.
Do not stack the 25% and 50% programs. Natrona specifically says a homeowner qualifying for the long-term homeowner exemption does not also qualify for the single-family 25% exemption.
Open Current Natrona Tax Relief Programs Review the county’s March 2026 guidance for homeowner, veteran, long-term homeowner, tax-growth cap and state refund programs.
Agricultural land uses production valuation

Natrona County Agricultural Classification

Wyoming agricultural and grazing land can be valued according to productive capability instead of ordinary market value when statutory agricultural-use requirements are met.

Owner-operated land Natrona states that an owner using the land must generate at least $500 of agricultural product annually to qualify.
Leased agricultural land If leased to an agricultural operation, Natrona states the lessee must generate at least $1,000 of agricultural product annually.
Documentation Revenue must be supported with receipts and/or Schedule F, and the county requires a completed notarized Agricultural Affidavit.
Owning acreage does not automatically make it agricultural for tax purposes. The Assessor applies the statutory production/use requirements.
Actual billing belongs to the Treasurer

How to Search & Pay Natrona County Property Taxes

Wait for the certified 2026 tax bill for final taxes. Natrona mails tax bills on or before October 10 after the Treasurer receives the Assessor’s tax roll.
Verify the January 1 owner. Tax bills show the owner as of January 1 of the tax year.
Use the online payment portal. Go to Natrona County Property Tax Payment System.
Have the tax bill ready. Online payment requires information from the bill, including Bill Number, Tax Year, owner last name/company name and Total Tax Bill amount.
Choose the correct installment. Pay first half, second half when applicable, or the full year’s amount according to the statutory schedule.
Pay each tax bill separately. Natrona says multiple property accounts require separate online transactions.
Save the credit-card receipt. Natrona treats the online card receipt as proof of payment and asks taxpayers to allow three business days for processing.
Recent buyer warning: if you purchase or record a deed after January 1, the tax bill can remain in the prior owner’s name. Taxes remain due even if you do not receive a bill.
2026 tax-bill schedule

Natrona County 2026 Property-Tax Calendar

Assessment notice 2026 Notice of Assessment mailed.
Value review Final 2026 Assessor review-contact deadline.
Mill levies Assessor lists August as the month mill levies are set by County Commissioners.
Tax bills 2026 tax bills mailed on or before this date.
First installment First half of 2026 tax becomes due.
Second installment Remaining half is due May 10, 2027 if using installment payments.
Full-payment option: instead of two installments, the entire 2026 property tax can be paid by December 31, 2026. Natrona says the next regular business day applies when December 31 falls on a weekend.
No bill by the end of October? Call the Property Tax division of the Treasurer at 307-235-9470 rather than assuming no tax is due.
Avoid guessing the 2026 mill levy

Natrona County Property-Tax Estimate Calculator

Enter the assessed value and final combined mill levy shown for the parcel. This avoids hard-coding a 2026 tax district rate before all levies are finalized.

Estimated annual property tax
$0

Use assessed value from the current record/notice and the final combined mill levy for the parcel.

Formula: Assessed Value × Mill Levy ÷ 1,000 = estimated property tax.
Do not use another Casper property’s mill levy blindly. Tax district 0150, 0154 and other Natrona tax districts can contain different combinations of taxing authorities.

Natrona County Property-Tax Payment Methods

Online Debit or credit card through the official Natrona County Property Tax Payment System.
In person Treasurer Property Tax division accepts cash, money orders, checks and cashier’s checks.
Cards Credit and debit cards are accepted, but transaction fees apply.
Check payable to NCT or Natrona County Treasurer.
Some accounts cannot be paid online. Natrona warns that account status can require the taxpayer to call or visit the Treasurer instead.
Upcoming September 2026 delinquent-tax process

Natrona County 2026 Tax Sale

September 1, 2026 Online tax-sale registration is scheduled to open at 8:00 a.m. and close at 10:00 a.m.
September 3, 2026 The lottery portion of Natrona’s annual delinquent-tax sale is scheduled in the Treasurer’s Office.
Tax lien—not immediate ownership Wyoming delinquent tax sale creates a lien process rather than automatically transferring the real estate to the tax-sale purchaser.
This September 2026 tax sale does not involve the new 2026 property tax bills that have not yet been mailed. It concerns delinquent taxes already eligible for collection under Wyoming’s tax-sale process.
County Clerk maintains legal recorded property documents

Search Natrona County Deeds, Mortgages, Plats & Recorded Documents

Deeds Recorded ownership transfers affecting real property.
Mortgages / Contracts Real-property mortgages, leases and contracts maintained by the County Clerk.
Subdivision Records Plats, subdivision permits and covenants.
Survey Records Land-survey corner records and maps of surveys that are not subdivisions.
Search the Assessor parcel first. Save owner, parcel number, account number and legal description.
Open the Clerk’s Online Records Search. Use Natrona County Recorded Documents.
Use iDoc Market for modern records. Land records are searchable online from June 1994 to present.
Use ArcaSearch for older records. Historical indexes and records cover 1890 through May 31, 1994, with image availability more limited.
Match the deed to the legal description. A similar owner name alone is not enough to prove the document belongs to the property.
Request a certified copy for legal use. Images downloaded from iDoc Market are not certified true-and-correct copies.
Online search is free: Natrona says the index data can be searched without charge, while document images are available through a fee-based subscription.
Historical-record gap: instruments from January 2, 1979 through January 9, 2001 identified by the Clerk’s current guidance may require an in-office search.

Free Natrona County Document Alerts

The County Clerk now offers a no-cost iDoc Market alert service that can email property owners when documents containing their name or legal description are recorded.

Create an account Register through iDoc Market and select the names or legal descriptions you want monitored.
Email notification Alerts are generated when qualifying new documents, corrections or updates are processed.
Not retroactive Natrona says alerts begin on the enrollment date and do not search backward for earlier recordings.
Alert received? The Clerk can provide copies of recorded documents, but determining whether a filing is legitimate or what legal action to take remains the property owner’s responsibility.

Natrona County Buyer & Homeowner Property Checklist

Situation Records to compare Best next step
Buying a Casper home Assessor property profile, GeoSMART, tax district, tax bill and deed. Verify both parcel identity and delinquent tax status before closing.
Recent purchase Recorded deed, Assessor owner and Treasurer bill. Remember the current tax bill can remain in the January 1 owner’s name.
Assessment seems high 2026 Notice, property characteristics, comparable sales and improvement condition. May 27 deadline has passed; contact Assessor about factual errors or future remedies.
Parcel line dispute Assessor map, recorded deed and professional survey. Do not use the cadastral map as the final boundary determination.
Owner age 65+ Wyoming property-tax history, primary-residence use and 2026 relief status. Verify whether the long-term homeowner 50% exemption was claimed before the deadline.
Veteran homeowner Veteran qualification and annual 2026 affidavit. Confirm the exemption appears on the 2026 assessment record.
Agricultural acreage Production documentation, Schedule F/receipts and Agricultural Affidavit. Verify agricultural classification rather than assuming acreage qualifies automatically.
Need legal title proof Recorded deed and related Clerk records. Use a certified document/title professional when legal reliance is required.

Natrona County Assessor, Treasurer & Clerk Contacts

Natrona County Assessor Tammy Saulsbury
200 N Center
Room 140
Casper, WY 82601

Phone: 307-235-9444
Fax: 307-235-9497
Hours: Mon–Fri, 8 a.m.–5 p.m.
Natrona County Treasurer — Property Tax Tom Doyle, Treasurer
200 N Center
Room 130
Casper, WY 82601

Property Tax: 307-235-9470
Fax: 307-235-9474
Natrona County Clerk Tracy Good
200 N Center
Room 157
Casper, WY 82601

Phone: 307-235-9206
Hours: Mon–Fri, 8 a.m.–5 p.m.
Convenient routing: the Assessor, Property Tax division of the Treasurer and County Clerk are all at 200 N Center in Casper but occupy different rooms.

Natrona County Property Search Problems & Best Fixes

Problem What to try Correct office/tool
Street address gives no result Remove direction and street type; use only number and street name. Assessor Search
Street spelling uncertain Enter only the first few characters of the street name. Assessor Search
Company property not found Switch Owner Search from Person to Company. Assessor Search
Condo record confusing Call the Assessor at 307-235-9444 as directed by the search portal. Assessor
Building size appears wrong Compare measurements, building sketch, permits and physical property. Assessor
Need building sketch/profile Use the Assessor’s Property Profiles and Building Sketches request form. Assessor
2026 appeal deadline missed May 27 is closed; ask whether the issue is a factual correction or what later statutory remedy applies. Assessor
Need final 2026 tax amount Wait for Treasurer’s certified bill on or before October 10. Treasurer
Tax bill in old owner’s name This can happen when deed recorded after January 1; call Treasurer and still pay by deadline. Treasurer
Map boundary differs from fence Use filed deed and professional survey instead of Assessor GIS alone. Surveyor / Clerk
Need deed from 2005 Use iDoc Market; modern land records are searchable from June 1994 forward. County Clerk
Need deed from early 1900s Use ArcaSearch historical records or Clerk’s office. County Clerk
“I am researching Natrona County account __________ / parcel __________ at __________. My question concerns the 2026 value / property characteristics / exemption / tax bill / deed / parcel map because __________. Please confirm which record controls and what next step applies.”
Official final-action routes

Natrona County Property Search & Tax Action Center

10 Natrona County-specific answers

Natrona County Property Assessor Search & Tax Records FAQs

1. How do I search Natrona County property records?

Use the official Natrona County Assessor Property Search. The system supports street address, person or company owner name, account number, legal description, parcel number, subdivision and property-type searches. Individual records can show current ownership, mailing information, tax district, legal description, land and building characteristics and valuation information.

2. Who is the Natrona County Assessor in 2026?

Tammy Saulsbury is the current Natrona County Assessor. The office is at 200 N Center, Room 140, Casper, Wyoming 82601. The phone number is 307-235-9444 and regular office hours are Monday through Friday from 8 a.m. to 5 p.m.

3. What is the best way to search a Natrona County street address?

Enter the street number and street name only. Natrona tells users not to enter direction such as W or West and not to enter street type such as Ave or Avenue. If the spelling is uncertain, enter only the first few characters of the street name.

4. When were Natrona County 2026 assessment notices mailed?

Natrona County mailed 2026 Notices of Assessment on April 27, 2026. The notice includes market and assessed values, applicable residential exemptions and an estimate of the upcoming 2026 property tax.

5. Can I still request a normal review of my Natrona County 2026 property value?

The normal 2026 review period has passed. Taxpayers had 30 days from the April 27 postmark and had to request a review and make initial contact with the Assessor by 5:00 p.m. on May 27, 2026.

6. When will Natrona County 2026 property-tax bills be mailed and due?

Natrona County property-tax bills are mailed on or before October 10. The first installment is due November 10 and the second installment is due May 10 of the following year. Instead of installments, the entire year’s tax can be paid by December 31 of the current tax year.

7. What happened to Wyoming’s 25% homeowner property-tax exemption for 2026?

For 2026 the program is limited to qualifying owner-occupied residences and required an application. Natrona County’s updated guidance states that the 2026 application deadline was March 1 and the Assessor can no longer accept 2026 applications.

8. What is Natrona County’s 50% long-term homeowner exemption?

The temporary 2025–2026 Wyoming program provides qualifying homeowners age 65 or older a 50% exemption on their primary residence and associated land up to 35 acres when they have paid Wyoming property tax for at least 25 years and meet the primary-residence requirement. The 2026 deadline was the fourth Monday in May.

9. Are Natrona County parcel maps legal surveys?

No. The Assessor Mapping Department states that it does not survey property. Parcel measurements are transferred from filed deeds and mapped lines are representations. A professional surveyor should be used when the exact location of a parcel boundary is required.

10. Where can I search Natrona County deeds and recorded property documents?

Use the Natrona County Clerk’s online records services. iDoc Market provides searchable land-record indexes from June 1994 to present and document images generally from January 10, 2001 forward. Historical indexes and records from 1890 through May 31, 1994 are available through ArcaSearch, subject to the county’s image-availability limits.

Official Sources & Editorial Verification

Verified August 12, 2026: Assessor Tammy Saulsbury, Treasurer Tom Doyle, Clerk Tracy Good, official Assessor search syntax, nightly ownership updates, 2026 Notice of Assessment mailing, May 27 review deadline, current homeowner/veteran relief programs, GeoSMART and cadastral-map rules, October 10 tax-bill schedule, November/May installment deadlines, online tax-payment requirements, September tax-sale schedule and recorded-document coverage were reviewed against current Natrona County and Wyoming government sources.

CountyPropertyAppraiser.org is an independent informational website. It is not affiliated with Natrona County, the Natrona County Assessor, Treasurer, Clerk, GIS Division, Wyoming Department of Revenue, iDoc Market, ArcaSearch, VitalChek, Tyler Technologies or any taxing authority.

Ownership, property characteristics, valuation, exemptions, mill levies, tax bills, payment fees, deadlines, tax-sale procedures, officeholders, government websites and legal-record availability can change. Confirm time-sensitive information with the responsible official office before paying taxes, challenging a value, claiming an exemption, purchasing property or relying on recorded land documents.

Article slug: natrona-county-assessor-property-search

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County Property Search, Homestead & Tax Help Toolkit

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Homestead Exemption Readiness Check

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TRIM Notice & Value Review Helper

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Your preparation checklist

Value term Simple meaning
Market value The appraiser’s estimate of the property’s value as of the assessment date.
Assessed value The value after limits or caps may be applied.
Exemptions Approved reductions such as homestead or other exemptions.
Taxable value The value used by taxing authorities after exemptions.

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The Property Appraiser values property, but the Tax Collector usually handles the actual bill and payment.

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