Grant County WA Property Assessor 2026: Search & Tax Records

Grant County, Washington • assessor, parcel, tax and map help

Find Your Grant County Parcel

Use the official Grant County Assessor search for ownership, assessed value, parcel details and maps; use the Treasurer for 2026 tax statements and payments; and use the Auditor when you need deeds or other recorded real-estate documents.

This guide shows how to search by owner, street address, Property ID, Geo ID, subdivision or map, then explains tax deadlines, payment fees, valuation appeals, senior exemptions and the fixes that solve common no-result searches.

Choose My Search Search Step by Step 2026 Tax Records

Official jurisdiction Grant County, WA This guide does not cover similarly named Grant Counties in NM, OK or other states.

2026 tax statements Online search available Treasurer supports 2025 and 2026 statement searches.

First-half taxes April 30 Normal Washington due date for the first installment.

Second-half taxes October 31 Grant County currently highlights this deadline on the Treasurer page.

Fast Answer: Which Grant County Search Do You Need?

Property value, owner, parcel or map: start with the Grant County Assessor Property Search. Tax statement, balance or payment: use the Grant County Treasurer. Deed, lien, map, survey or recorded document: use the Grant County Auditor Recording Office.

Independent guide: AssessorPropertySearch.org is not Grant County government. This page explains the official tools but does not collect property-tax payments, appeal petitions, banking details or private owner documents.

Why this article says “WA”: “Grant County assessor property search” is ambiguous because multiple U.S. states have a Grant County. The primary official search intent covered here is Grant County, Washington, including Ephrata, Moses Lake, Quincy, Mattawa, Warden, Royal City and other Grant County communities.

Grant County Assessor, Treasurer or Auditor?

A single parcel can appear in several county systems, but each office answers a different question.

Assessor Property Search

Use this for ownership display, parcel identifiers, assessed value, land and improvement details, legal-description information, sales research and map navigation.

Official Grant County Assessor property database Open Property Search

Treasurer Tax Search

Use this for 2025/2026 tax statements, current tax obligations, payment processing, delinquent-tax questions and payment-plan information.

Official Grant County Treasurer Open Treasurer Page

Parcel Map Search

Use map search when a rural parcel has no useful street address, when several similar parcels appear, or when you need visual parcel context.

Official Grant County Property Search map Open Map Search

Auditor Recorded Documents

Use the Auditor for recorded deeds, liens, maps, surveys and document images. Assessor ownership data is useful research but is not a substitute for the recorded instrument.

Official Grant County Auditor EagleWeb Search Recorded Documents

How to Search Grant County Property Records

This sequence works whether you start with an owner name, street address or parcel identifier.

Open the official Assessor Property Search

Start with the Assessor database when your goal is parcel identification, ownership display, value, legal-description research or map navigation.

Choose the simplest search field you know

Start with owner name, street number and street name, Property ID or Parcel # / Geo ID. Avoid filling several uncertain fields at once.

Open the matching parcel

Compare the owner, property location, abbreviated legal description, parcel or Geo ID and tax area before relying on a result.

Check the appraisal-year display

Use the Results Display controls to make sure you are viewing the year needed for ownership or tax research.

Save the parcel identifiers

Write down the Property ID and Parcel # / Geo ID. These are more reliable than repeatedly trying to recreate a text search.

Move to the correct final-action system

Use Treasurer records for tax statements/payments, map search for spatial context and Auditor EagleWeb for recorded deeds or other instruments.

Search by Owner Name, Address, Business or Land Description

Grant County’s portal has more search options than a basic owner/address box. Use the field that best matches the information you already have.

Information you have	Portal field	Best first attempt	If it fails
Owner name	Owner Name	Use the distinctive surname or owner wording.	Use fewer words; compare mailing address and parcel details in the result list.
Street address	Street Number + Street Name	Enter the house number and full or partial street name.	Remove unnecessary suffixes or search a partial street name.
City	City	Use it to narrow a common street or owner search.	Remove the city and identify the parcel by owner or map.
Business name	Doing Business As	Enter the most distinctive portion of the DBA.	Try owner name or a partial business name.
Subdivision	Subdivision	Select the known subdivision.	Combine with township/range or map search.
Rural land information	Township / Range / Section	Use the survey-location information from a deed or legal description.	Use the parcel number or Map Search.
Mobile-home park or condo	Mobile Home Park / Condo	Select the applicable development.	Search owner, Property ID or map.

Local search trick: the official portal accepts a partial street name. If “1234 West Example Road NW” fails, search the street number with the distinctive part of the street name before adding more words.

Grant County Parcel Search: Property ID, Geo ID and 6-6-4 Format

The official search exposes both Property ID and Parcel # / Geo ID fields. Saving these identifiers makes later tax, map and sales research much faster.

Property ID

Use the Property ID field when you already know the county’s specific property record number. A matching property detail page can show account, location, owner, assessment, tax and sales information.

Parcel # / Geo ID

The portal provides a separate Geo ID search. This can be especially useful for rural land, parcels without a standard situs address and records derived from township/range/section descriptions.

Advanced parcel-number detail: Grant County’s search instructions describe a 16-character parcel-number structure in a 6-6-4 pattern. The first six digits represent township/range/section, the next six relate to map coordinates, and the final four provide additional parcel description when needed.

Zeros at the end of a parcel number

The official search instructions say that when the parcel number ends in zeros, you can enter the number through the last non-zero digit rather than typing every trailing zero.

Grant County Assessor Property Search Map

Map search is especially useful for agricultural land, vacant parcels, rural addresses, adjoining tracts and properties that do not return a clean text-search result.

Use map search when

The parcel has no useful street address.
Several nearby properties have similar descriptions.
You know approximately where the land is located.
You need parcel context before opening the property record.

Assessor search first

Grant County specifically recommends opening Property Search before Sales Search. Doing so moves past the user-agreement step and makes navigation between parcel, map and sales applications smoother.

Know the map limit

Grant County publishes GIS data for reference and does not guarantee accuracy, precision or completeness. Parcel mapping should not be treated as a legal boundary determination.

Rights-of-way warning: Grant County’s Property Search Disclaimer expressly says parcel lines are not used to define rights-of-way. Public Works is the office of record for road rights.

Official Grant County map and GIS resources

Property Map Search Grant County GIS

What a Grant County Property Record Can Show

A property detail page can combine appraisal, ownership, tax and transaction information, but each field has limits.

Record item	How it helps	Important limitation
Property ID	Exact Assessor database identifier.	Do not confuse it with every other county transaction number.
Parcel # / Geo ID	Parcel identification and map-related research.	Verify against legal documents for high-stakes use.
Abbreviated legal description	Helps identify the tract, lot or sectional description.	An abbreviated Assessor description is not a substitute for the recorded deed.
Owner name / mailing address	Shows the ownership information carried in the Assessor system.	A recent transfer may not immediately appear in every county system.
Tax area	Helps identify the taxing-area context applied to the parcel.	The Assessor does not bill or collect the tax.
Legal acres	Useful appraisal-record acreage reference.	Use a recorded survey for legal boundary acreage questions.
Sales / deed information	Provides useful transaction clues and sale research.	Use the Auditor for the recorded instrument itself.
Assessment / taxes	Helps compare valuation and tax-history data.	Use the Treasurer for the live tax statement and final payment amount.

Annual revaluation: Grant County’s BOE guidance says the Assessor revalues property each year. A successful appeal or prior-year value therefore does not automatically protect the following assessment year.

Grant County Treasurer Property Search: 2026 Tax Statements

Use the Treasurer—not the Assessor—when your real goal is the tax statement, due amount or payment status.

Search a tax statement by

Property ID Parcel number Owner name

The Treasurer says the owner name should be entered exactly as it appears on the parcel or tax statement.

Need parcel data first?

Use Assessor Property Search to find the parcel identifiers, then move to the Treasurer tax-statement or payment system.

2026 property-tax due-date rules

Tax amount / installment	Normal rule
$49.99 or less total tax	The entire amount is due with the first installment on April 30.
$50 or more total tax	The annual tax can generally be split into first and second installments.
First installment	Due April 30.
Second installment	Due October 31; Grant County currently highlights this date on the Treasurer page.
Paying the whole year	You may pay the full year or remaining annual balance during the current year.

Postmark matters: the Treasurer accepts U.S. Postal Service postmarks for mailed property-tax payments. Do not rely on a private postage-meter date where the county specifically requires the qualifying postal postmark.

Official Grant County Treasurer Find 2026 Tax Statement

Grant County Property Tax Payment Fees and Posting Time

Before using the online payment processor, check both the tax amount and the third-party transaction fee.

Payment issue	Current Treasurer guidance	What to do
Credit card	2.7% third-party charge on the transaction.	Confirm the actual fee shown immediately before payment.
Debit card	0.95% charge.	Compare the debit fee with e-check before choosing.
Electronic check	$1.30 fee.	Verify routing/account details carefully before submitting.
Returned payment	$30 returned-item fee, with possible additional interest and penalties.	Resolve a returned transaction quickly with the Treasurer.
Posting time	Online payments may take 3–5 business days to appear.	Save the confirmation and avoid paying the same balance twice while the first payment is processing.

Old county page warning: an older Grant County “Online Payments” page still displays older vendor fees. For 2026, use the current Treasurer page and the fee shown at live checkout as the controlling amount.

Payment processor problem? the Treasurer currently directs users experiencing online payment problems to Point & Pay at 888-891-6064. Questions about the tax bill itself belong with the Grant County Treasurer.

How to Appeal a Grant County Property Assessment

Formal value appeals go to the Grant County Board of Equalization (BOE), an independent quasi-judicial board—not to the Treasurer.

What BOE cannot decide: it cannot directly lower your tax bill because taxes feel high, change a levy rate, decide personal-hardship claims or decide an appeal solely from the percentage your assessment increased. The appeal must address an Assessor determination within BOE jurisdiction.

Filing deadline

The county BOE FAQ says the petition must be received by July 1 of the assessment year or within 30 calendar days after the date of the value-change or other determination notice, whichever is later. A mailed petition must be postmarked by the deadline.

Do not reuse last year’s deadline: the BOE page may display petition dates connected to the prior assessment cycle. Calculate your deadline from the assessment year and the actual date on your current change-of-value notice.

One petition for each parcel

The BOE requires a separate petition for each parcel, and there is no filing charge for an appeal.

Petition item	Prepare before filing
Parcel number	Copy the exact parcel identifier from the Assessor record or notice.
Taxpayer name and address	Use current mailing/contact information.
Representative	Include representative information and power of attorney when applicable.
Property description	Address, parcel size, zoning and general building information.
Assessor value	Use the value shown on the challenged notice.
Your opinion of value	State a specific supported value rather than “taxes are too high.”
Reasons	Explain why the Assessor determination does not reflect true and fair market value.
Signature and date	Do not submit an unsigned petition.
Value-change notice	Attach a copy of the Assessor notice or other determination notice.

Incomplete petitions: Grant County BOE states that incomplete petitions cannot be considered. File the required petition information by the deadline even if some supporting evidence will follow later.

Official Grant County Board of Equalization Open BOE Appeal Information

Build Better Evidence for a Grant County Value Appeal

The burden is on the taxpayer to show the Assessor determination is incorrect. Focus on market evidence tied to the valuation date.

Evidence the county specifically identifies

Comparable sales or sale of the subject property.
Contractor estimates for building or land defects.
Government or expert documents about development limitations.
Deeds describing value-impacting easements.
Independent appraisals.
Photos of conditions that reduce market value.
Maps showing access limitations or similar value effects.

Arguments BOE says are not enough

The tax bill is too high.
The percentage increase seems unreasonable by itself.
Personal financial hardship.
Tax levy rates.
Simply listing other properties’ assessments instead of market-value evidence.

Comparable-sales checklist

Choose sales as close as practical to the January 1 valuation date.
Prefer the same neighborhood or similar market area.
Compare land size, living area, age, condition and improvement type.
Identify superior and inferior features rather than claiming every comparable is identical.
Record parcel/account number, address, sale date and sale price.
Explain how the comparison supports your opinion of value.

More evidence later: Grant County says you do not necessarily need every exhibit on the initial filing date if the petition itself is complete. Additional valuation evidence generally must reach the Board at least 21 business days before the hearing.

After the hearing

The BOE FAQ says decisions are typically mailed within about two weeks, although the statute allows up to 45 days. If either party disagrees with the BOE decision, an appeal to the Washington State Board of Tax Appeals generally must be filed within 30 calendar days of the mailing date of the decision.

Keep paying taxes on time: Grant County expressly tells appellants to pay property taxes by the normal deadlines even if the BOE hearing or decision is still pending, to avoid interest and penalties.

Senior Citizen and Disability Property Tax Programs

Grant County Assessor administers Washington property-tax exemption and deferral programs for qualifying senior citizens and people with disabilities.

2026 exemption basics

Generally age 61 or older at filing, or disabled from regular gainful employment.
Own and occupy the home as the principal residence.
Generally live in the home more than six months of the year.
Supply the required household-income evidence.
Provide disability documentation when qualification is based on disability.

Income documentation

The county lists IRS tax forms, Social Security 1099s, bank statements, W-2s and other relevant income verification. Certain documented healthcare expenses can reduce combined disposable income under the program rules.

Current threshold context: Grant County’s page lists a combined disposable income limit of $46,000 for 2023–2025 income years for the exemption program. Washington enacted changes in 2026 that affect taxes collected in 2027, so do not automatically reuse the 2026 threshold for a 2027 application.

Exemption vs deferral

Program	Basic effect	Important difference
Senior / disability exemption	Can reduce qualifying property taxes based on income, property value and levy rules.	This is an exemption benefit, not a loan against the home.
Senior / disability deferral	Washington Department of Revenue pays qualifying taxes or special assessments on the homeowner’s behalf.	The deferred amount plus interest becomes a lien that must eventually be repaid.

Official Grant County senior/disability tax programs Review Eligibility and Forms

Grant County Deed and Recorded Property Search

The Auditor Recording Department records real-estate documents, liens, maps and surveys. Use it when the Assessor result gives you a clue but you need the actual recorded record.

Identify the parcel first

Use Assessor Property Search to record the owner, Parcel # / Geo ID, legal description and transaction clues.

Open Auditor EagleWeb

The official online index allows public users to search recorded documents, view indexed information and print available images.

Search the likely party or recording details

Use the owner/grantor/grantee information, recording date or document information you already identified.

Verify the legal description

Do not select a deed simply because the owner name looks familiar. Compare parcel and legal-description details.

Request an official copy when needed

The Auditor Recording Department can provide copies of recorded documents for a fee.

Browser tip: the Grant County Auditor EagleWeb currently requires cookies, and some features may not work when JavaScript is disabled.

Official Grant County Auditor Recording Office

Recording Office Guide Open EagleWeb Search

New Grant County Property Owner Checklist

A sale does not necessarily trigger a new or revised tax statement during the year, so verify the parcel and tax account after closing.

After recording

Confirm the deed was recorded with the Auditor.
Save the document or recording reference.
Check the Assessor record for current ownership.
Save the Property ID and Parcel # / Geo ID.
Verify the mailing address on the county record.

Before tax deadlines

Search the current Treasurer tax statement.
Confirm whether the seller supplied the statement at closing.
Check whether a mortgage servicer will pay from escrow.
Do not assume ownership transfer automatically changes the current-year statement.
Verify payment before April 30 and October 31 when applicable.

County statement tip: Grant County tax-statement material tells existing owners to give the statement to a new owner when property changes hands during the year because a sale does not necessarily generate a replacement statement.

Grant County Property Search Not Working? Fix It Here

Problem	Likely reason	Best next step
Owner search returns nothing	Name formatting, trust/business ownership or recent transfer.	Use fewer owner-name words, street search, Property ID or map search.
Address search returns nothing	Rural parcel, partial road naming or different situs formatting.	Use a partial street name, owner, Geo ID or map.
Too many street results	Partial street search is broad.	Add street number, city, owner or another reliable field.
Parcel has no normal street address	Vacant, rural or agricultural land.	Use Parcel # / Geo ID, township/range/section or Map Search.
2026–2027 values are missing	The portal may not yet have published the new assessment values.	Follow the notice shown on the live search page; use the indicated year for current ownership and recheck later for value release.
Tax statement search finds no owner	Treasurer asks for the name exactly as displayed on the parcel/statement.	Find the parcel in the Assessor system, then copy the identifier into the tax search.
Payment still appears unpaid	Online payments may take 3–5 business days to post.	Keep the confirmation and wait the stated processing period before submitting another payment.
Map line conflicts with road/right-of-way	Parcel mapping does not define road rights-of-way.	Use Public Works records for road rights and a survey/recorded document for legal boundary questions.
Need a deed image	Assessor system is not the Recorder database.	Use Auditor EagleWeb; enable cookies and JavaScript if required.
Found Grant County NM or OK	Several states use the same county name.	Verify that the official domain is Grant County, Washington before using parcel or tax data.

Grant County Property Offices, Phone Numbers and Hours

Call the office responsible for the record. Take the parcel or tax identifier with you so staff can find the correct account quickly.

Office	Use it for	Current contact details
Grant County Assessor	Value, ownership display, parcel data, exemptions, deferrals and maps.	35 C Street NW, Courthouse Annex Room 107, Ephrata, WA 98823 Direct: 509-754-2013 Main: 509-754-2011 ext. 2601 Mon–Fri, 8 a.m.–5 p.m.
Grant County Treasurer	Tax statements, payments, delinquency and payment plans.	35 C Street NW, Room 204, Ephrata, WA 98823 509-754-2010 Main ext. 4201 Mon–Fri, 8 a.m.–Noon and 1–5 p.m.
Board of Equalization	Formal appeals of Assessor determinations.	35 C Street NW, Ephrata, WA 98823 509-754-2011 ext. 2931
Auditor Recording	Deeds, liens, recorded maps, surveys and copies.	35 C Street NW, Ephrata, WA 98823 509-754-2011 ext. 2705 Mon–Fri, 8 a.m.–5 p.m.
GIS	GIS data, maps and site-addressing context.	264 W Division Avenue, Ephrata, WA 98823 509-754-2011 ext. 2501

Assessor script

“I’m calling about Grant County Property ID [number] / Geo ID [number]. I need help with the [owner record / value / parcel detail / exemption] for assessment year [year].”

Treasurer script

“I’m calling about parcel [number] and the 2026 tax statement. I need to confirm the [balance / payment status / delinquent amount / payment plan] before I submit another payment.”

BOE script

“I received a value-change notice dated [date] for parcel [number]. I need to confirm my petition deadline and whether my filing is complete before submitting evidence.”

Official Grant County Action Links

Use these after the guide has helped you identify the record or action you actually need.

Property Search

Owner, street, Property ID, Geo ID and advanced parcel search.

Open Assessor Search

Parcel Map

Map-based parcel location and spatial research.

Open Map Search

Tax Statement / Payment

2025–2026 statements, payment link and Treasurer help.

Open Treasurer

Assessment Appeal

Petition rules, filing deadline, BOE evidence and hearing information.

Open BOE

Senior / Disability Relief

Qualification rules, income information, exemption and deferral forms.

Open Tax Relief Programs

Deeds and Recording

Recorded deeds, liens, maps, surveys and document search.

Open Recording Office

Grant County Property Search FAQs

Is this Grant County assessor property search for Washington?

Yes. This guide covers Grant County, Washington. It does not cover Grant County, New Mexico, Oklahoma, Oregon or another state with the same county name.

Is the Grant County WA assessor property search free?

The county provides a public online Assessor Property Search without sending users to a paid lookup checkout. Separate fees can apply to recorded-document copies and property-tax payment processing.

Can I search Grant County property records by owner name?

Yes. The official Assessor portal has an Owner Name field. If the full owner wording fails, use fewer words or identify the property by address, Property ID, Geo ID or map.

Can I search Grant County property records by address?

Yes. The Assessor search provides separate Street Number and Street Name fields and accepts a full or partial street name. Rural parcels may be easier to find by Geo ID, township/range/section or map.

Where is the Grant County assessor parcel map?

The official property-search system includes a Map Search. Use it for rural land, vacant parcels or visual parcel context, but do not treat the GIS parcel line as a legal survey or road right-of-way determination.

How do I search a Grant County parcel number?

Use the Property ID or Parcel # / Geo ID field in the official Assessor search. The portal also supports township, range, section, subdivision and other advanced criteria for land searches.

Where can I find my 2026 Grant County property tax statement?

Use the Grant County Treasurer page. It provides a tax-statement search for 2025 and 2026 using Property ID, parcel number or owner name.

When are Grant County WA property taxes due?

The normal first-half deadline is April 30 and the second-half deadline is October 31. If the total tax is $49.99 or less, the full amount is due with the first installment.

How do I appeal a Grant County property assessment?

File a separate petition for each parcel with the Grant County Board of Equalization. The general deadline is July 1 of the assessment year or 30 calendar days after the date of the value-change or determination notice, whichever is later.

Where do I search Grant County deeds and recorded property documents?

Use the Grant County Auditor Recording Office and its EagleWeb document search. The system supports recorded-document research and available images; cookies are required and some features need JavaScript.

Best Next Step

Start with the Assessor Property Search and save the Property ID plus Parcel # / Geo ID. Use the map when the address is unclear, the Treasurer when you need a tax statement or payment, the Board of Equalization when you are challenging an assessment, and the Auditor when you need the recorded deed or other legal document.

Before paying or filing an appeal, verify the parcel, tax or assessment year and the current deadline on the official county page linked beside that workflow.