Thurston County Property Tax: Lookup, Pay & Rates Guide

Independent government information: PropertyTaxUSA.org is an independent educational website. It is not affiliated with Thurston County, Washington, the County Treasurer, County Assessor, Board of Equalization, or Washington State Department of Revenue. We do not maintain official tax accounts, collect government payments, determine assessed values, or submit appeals. Use the official government services linked throughout this guide.

THURSTON COUNTY, WASHINGTON · 2026 PROPERTY TAX GUIDE

Thurston County Property Tax: Look Up Your Bill, Pay Online, Check Rates & Calculate Taxes

Need to pay Thurston County property taxes, look up a parcel by address, download a past payment record, or calculate the taxes on a home in Olympia, Lacey, Tumwater, or another Thurston County community? The county provides official online tools for tax collection, parcel assessment, tax distribution, and property tax exemptions.

This guide explains the exact county lookup process, 2026 payment schedule, card processing fees, local levy rates, assessment appeals, and the important senior and disability tax relief changes beginning in 2027.

FIRST-HALF DEADLINE April 30, 2026 First installment · Passed
SECOND-HALF DATE Oct. 31, 2026 Statutory date falls Saturday; verify adjusted deadline
ONLINE E-CHECK FEE $0 No additional transaction fee

Reviewed October 11, 2026 · 2026 collection year based on January 1, 2025 assessed values · Official Thurston County sources

Where Can You Look Up or Pay Thurston County Property Taxes?

The Thurston County Treasurer is responsible for property tax collection, account balances, payments, and payment receipts. The Thurston County Assessor is responsible for taxable property values, property characteristics, and qualifying property tax relief applications.

01 · COUNTY TREASURER

Tax Bills & Payments

Find current and past installments, verify the balance, make a payment, and review prior-year tax information.

Official Treasurer Services ↗
02 · COUNTY ASSESSOR

Property Value & Records

Access A+ Parcel Search for values, property characteristics, neighborhood sales, and value change notices.

Official Assessor & A+ Search ↗
03 · RATES & LEVIES

Property Tax Rates

Review the 2026 state, county, city, school, fire, and special-purpose levy rates.

Official 2026 Tax Rates ↗
There is no single Thurston County property tax percentage. A parcel’s total rate depends on its tax code area and overlapping districts. A house in Olympia can have a different combined tax rate from a house in Lacey, Tumwater, Yelm, or unincorporated Thurston County.

How to Pay Thurston County Property Taxes Online

Thurston County accepts electronic check, debit card, and major credit card payments online. Its Treasurer’s payment website directs the taxpayer to a secure payment vendor after the appropriate installment is selected.

ONLINE ELECTRONIC CHECK $0 No additional transaction fee
DEBIT CARD 1.0% $2 minimum under published FAQ
CREDIT CARD 2.3% $2 minimum under published FAQ

The county says it does not receive the card processing fees. Review the current payment processor checkout for the exact total.

Online payment instructions

  1. Open the County Treasurer.

    Go to the official Treasurer website.

  2. Choose Pay Property Taxes.

    Open the official property payment service linked from the Treasurer webpage.

  3. Find the correct property.

    Search using the parcel or other available account identifiers.

  4. Review the installment balance.

    Check whether you owe the current second half, the full current year, or delinquent prior years.

  5. Select the installment.

    Use the Select to Pay field in the Property Account Summary where available.

  6. Choose Begin Payment.

    Continue from the Treasurer’s account screen to its secure vendor checkout.

  7. Compare electronic check and card fees.

    Electronic check avoids the extra card fee for a qualifying payment. Debit and credit cards carry the published charges.

  8. Confirm your payment details.

    Verify the property identifier, installment, amount due and any processor charge.

  9. Submit payment once.

    Keep your confirmation number and any email or electronic receipt.

  10. Check the posted tax history.

    Use the Treasurer’s tax information service to verify that the correct installment is recorded as paid.

Online account features: The Treasurer also permits users to create a payment account and schedule future payments or automatic withdrawals. Do not assume an automatic payment exists until enrollment and the payment schedule are confirmed.

How much do card processing fees add?

Tax paymentElectronic check extra feeDebit extra feeCredit extra fee
$500$0$5.00$11.50
$1,000$0$10.00$23.00
$2,500$0$25.00$57.50
$5,000$0$50.00$115.00

Examples apply the published 1% debit and 2.3% credit rates. Actual payment processing totals are set by the official vendor and any applicable minimum charge.

COUNTY ONLINE TAX PAYMENTS Thurston County Treasurer

Pay, schedule transactions, and access property tax account information.

Pay Taxes on Official Website ↗

Thurston County Property Tax Due Dates: April and October 2026

Washington real property taxes generally are payable in two installments when the annual amount qualifies for semiannual payment. The normal statutory dates are April 30 and October 31.

FIRST INSTALLMENT April 30, 2026

Official Thurston County first-half deadline. Already passed.

SECOND INSTALLMENT October 31, 2026

Falls on a Saturday; verify the next-business-day adjustment with the Treasurer.

Important October 2026 weekend issue: October 31, 2026 is a Saturday. The property account system may still display October 31 as the scheduled second-half date. Under Washington’s general weekend/holiday deadline rules, the next business day would ordinarily be Monday, November 2, 2026. Confirm that the Treasurer applies this adjusted deadline to your payment method before relying on it; paying earlier avoids any last-day uncertainty.

2026 tax-year calendar

DateEventWhat it means
January 1, 2025 Underlying assessment date Values used for the 2026 collection-year taxes.
February 9, 2026 Tax notices mailed County Treasurer mailed 2026 statements.
April 30, 2026 First-half deadline First-half taxes due.
September 16, 2026 2026 property value notices mailed New assessment notice used for the following collection year.
October 31, 2026 Scheduled second-half date Saturday; confirm adjusted deadline.
November 2, 2026 Potential adjusted second-half deadline Next business day under ordinary weekend extension treatment.
November 16, 2026 2026 assessment appeal deadline Board of Equalization requires qualifying signed petitions by 5 p.m.

What if the full annual tax bill is small?

Washington’s installment statute generally requires certain annual property tax amounts of $50 or less to be paid in full by April 30. Check the county account to determine whether your particular bill qualifies for separate installments.

Does the Treasurer accept partial payments?

The Treasurer’s FAQ states that the full amount due for the current applicable installment is required. Half payments apply only to eligible current-year amounts, and the normal installment option ends after the October deadline.

For late payments, the required full balance may include additional interest, penalties, and collection costs. The Treasurer may return payments that do not match the required amount.

Tax bill never arrived? The county states that taxpayers are still responsible for property taxes even when a notice is missing. Verify your property account and mailing address with the Treasurer.

Thurston County Property Tax Rates for 2026

Thurston County’s official 2026 Tax Rates are expressed in dollars per $1,000 of taxable value. These rates use assessed values as of January 1, 2025.

A parcel’s total tax rate is composed of applicable overlapping levies, including state schools, county services, the relevant city or unincorporated levy, school districts, fire districts, and other special-purpose districts.

Examples from the 2026 official rate schedule

Taxing authority2026 levy per $1,000Notes
Washington State Schools$1.40State education levy component.
Washington State Schools 2$0.75Additional state school component.
Thurston County Current Expense$0.81County government levy.
Thurston County Road Fund$0.71Road levy; applicability depends on property location.
Thurston County Conservation Futures$0.03County conservation levy.
City of Lacey$0.73Municipal levy component.
City of Olympia$1.92Municipal levy component.
City of Tumwater$1.72Municipal levy component.
City of Yelm$0.97Municipal levy component.
City of Tenino$1.17Municipal levy component.
City of Rainier$0.85Municipal levy component.
Town of Bucoda$1.09Town levy component.

Rates in this table are individual components rounded as published by the Treasurer. They are not a complete combined rate for any specific parcel.

2026 school district levy examples

School districtRate per $1,000
Olympia School District #111$4.45
North Thurston School District #3$4.37
Tumwater School District #33$4.07
Rainier School District #307$4.26
Tenino School District #402$3.11
Griffin School District #324$2.01
Yelm School District #2$1.07
Do not simply add every row together. A property is not simultaneously in all listed cities, schools, and fire districts. Use the exact levy code or tax code area for the parcel to determine the overlapping rates that actually apply.

How to find the exact combined rate

  1. Look up the property.

    Open the Treasurer’s account information or Assessor’s A+ Parcel Search.

  2. Identify its tax code area.

    Use the property location and tax district details.

  3. Check the state tax code area lookup.

    The Washington Department of Revenue has a tool that can search using address, section-township-range, coordinates, or map.

  4. Select the applicable assessment year.

    Make sure the rate corresponds to the collection year you want to calculate.

  5. Use the combined levy rate.

    Apply the correct dollars-per-$1,000 rate to the property’s taxable value.

OFFICIAL THURSTON COUNTY 2026 LEVY DATA Thurston County Treasurer — Tax Rates

State, county, municipality, school, fire, and special-purpose district levy components.

See Official Tax Rates ↗

For statewide mapping, use the Washington Department of Revenue Tax Code Area Lookup.

Thurston County Property Tax Calculator

Estimate annual property taxes using the parcel’s taxable value and combined local levy rate.

Washington generally assesses real estate at 100% of true and fair market value, but exemptions, levy limitations, and special assessments may affect the final taxable amount and bill.

Calculate Estimated Property Tax

Estimated taxable value —
Annual estimated property tax Enter rate
Equal half-year budgeting amount —
Monthly budgeting equivalent —

Use the actual parcel’s consolidated levy. This estimate does not automatically reproduce Thurston County’s assessment and exemption billing calculations.

Property tax formula

Estimated Taxable Value × Combined Levy Rate ÷ 1,000
= Basic Annual Property Tax

Illustrative example: $500,000 taxable value

For a property with $500,000 of taxable value and an illustrative combined tax rate of $9 per $1,000, the calculation would be:

ItemIllustrative amount
Taxable assessed value$500,000
Assumed combined levy$9 per $1,000
Estimated annual base tax$4,500
Equal half-year budget$2,250
Monthly budgeting equivalent$375

The $9 levy is hypothetical and is not presented as Olympia’s, Lacey’s, Tumwater’s, or the countywide property tax rate.

Why does the county’s actual bill differ from a simple calculation?

  • Multiple state and local levies can overlap.
  • Some exemptions reduce taxable value or particular levy components.
  • Special assessments or charges may appear in addition to property taxes.
  • The assessment year and collection year are different.
  • Prior-year taxes and delinquent charges may be included in the account balance.
  • Certain property classifications and voter-approved measures have separate treatment.
Calculator limitation for senior exemptions: The county’s senior and disability program can exempt excess levies and freeze the qualifying taxable value. Entering a single dollar reduction cannot fully represent all such rules. Use the county’s approved tax amount when applying for or receiving an exemption.

How to Find Thurston County Property Assessments and A+ Parcel Search Records

The Assessor’s A+ Parcel Search provides property records, valuation reports, neighborhood sales information, historical values, and assessment notices.

OFFICIAL COUNTY ASSESSMENT DATABASE Thurston County Assessor — A+ Parcel Search

Parcel information, value reports, ownership-related data and property history.

Open A+ Parcel Search ↗
  1. Open the Assessor’s website.

    Visit the official page linked above.

  2. Choose A+ Parcel Search.

    Look for the A+ Parcel Search tool among the Assessor’s featured services.

  3. Search for the property.

    Use the available parcel, address, or other permitted search method.

  4. Confirm the matching parcel.

    Check the property’s address, parcel number, and location.

  5. Review the value report.

    Look for land value, improvement value, total assessment, and relevant assessment year.

  6. Review neighborhood sales.

    Use comparable sales and property characteristics if you believe the value is inaccurate.

  7. Open the value change notice.

    The county provides 2025 and 2026 value notice information through its A+ system.

  8. Use the tax account for actual payment balances.

    The Assessor’s value is not the same thing as the Treasurer’s current amount due.

Understand the assessment year and payment year

Assessment dateRelated tax collectionPractical meaning
January 1, 2025 2026 property taxes Valuation underlying the current collection year.
January 1, 2026 2027 property taxes Value reflected in the notices mailed September 16, 2026.

The Assessor’s September 2026 notice reflects changes in property market values between January 1, 2025 and January 1, 2026. Owners who find incorrect characteristics or unexplained differences can contact the Assessor for review.

Assessment inquiries: The Assessor provides ValueInquiry@co.thurston.wa.us specifically for questions about assessed values or property characteristics. Its main telephone number is 360-867-2200.

Thurston County Property Tax Exemptions for Seniors, Disabled Homeowners and Veterans

Thurston County administers several property tax relief programs, including exemptions for qualifying senior citizens, disabled persons, disabled military veterans, deferral programs, destroyed-property adjustments, and special classifications for qualifying land.

Senior and disabled property tax exemption

Under the county’s 2026 eligibility guidance, qualifying applicants generally must own and occupy their home, meet program age or disability criteria, and satisfy the applicable combined disposable income threshold.

2026 INCOME LIMIT $59,000 Combined disposable income threshold
2027 INCOME LIMIT $83,000 Expanded threshold beginning January 2027
QUALIFYING SENIOR AGE 61+ Relevant statutory assessment-year requirements apply

What changes in 2027?

Washington Senate Bill 6162 expands exemption eligibility beginning in 2027. Thurston County’s upper income threshold increases to $83,000, compared with $59,000 under the preceding rules.

The county also explains that applicants may elect a standard deduction of $7,500 for the qualifying applicant and another $7,500 for a spouse or domestic partner, depending on eligibility. This can help some households qualify at higher gross income levels.

For eligible disabled military veterans, the minimum qualifying service-connected VA disability rating decreases from 80% to 40% under the 2027 rules.

Do not apply the 2027 threshold to a 2026 tax bill. The new income and disability-rating rules begin with the applicable 2027 program period. The Assessor directs residents to apply in 2027 after assembling 2026 income records and filing their 2026 tax return.

How the exemption may reduce your taxes

A qualifying exemption can eliminate excess levies, potentially reduce part of regular levies, and freeze the taxable value of the qualifying residence under applicable program rules.

The benefit is not a single guaranteed dollar amount and does not always eliminate the entire tax bill.

How to apply

  1. Open the Assessor’s Property Tax Relief Programs page.

    Choose the senior citizen, disabled person, or disabled veteran program.

  2. Check the correct program year.

    Determine whether you are applying under 2026 or 2027 eligibility requirements.

  3. Confirm the ownership and occupancy requirements.

    The residence must qualify as the applicant’s home under the program rules.

  4. Prepare identification and income documents.

    The Assessor lists Washington identification, income documents, and allowable deductions among the necessary records.

  5. Prepare disability evidence when applicable.

    Examples may include disability award documentation, physician certification, or a VA benefits verification letter.

  6. Submit the application through the Assessor.

    The county offers in-person help and is preparing expanded online application access for the 2027 program.

  7. Verify the decision and tax effect.

    After processing, review the revised assessment or tax statement.

OFFICIAL TAX RELIEF ELIGIBILITY Thurston County Assessor — Property Tax Relief Programs

Senior, disability, veteran, deferral, destroyed property and open-space benefits.

Check Programs & Apply ↗

Tax deferral versus tax exemption

Program typeWhat happensDoes the tax need to be repaid?
Exemption Reduces qualifying property taxes under the exemption rules. Ordinarily not a loan, subject to qualification and correction rules.
Deferral State pays postponed qualifying taxes on the homeowner’s behalf. Yes. Deferred taxes, plus interest, become a lien and must be repaid under program rules.

Other programs to know

  • Destroyed property adjustment: For qualifying damage, destruction, or qualifying disaster-related value reductions.
  • Residential remodeling exemption: Certain improvements may qualify for a limited property tax exemption period.
  • Current Use / Open Space: Qualifying agricultural, forest, or open-space property may receive a special assessment classification.
  • Nonprofit property exemptions: Certain uses may be exempt under Washington law and Department of Revenue procedures.

How to Appeal Your Thurston County Property Tax Assessment

If you believe your assessed value is higher than the property’s true and fair market value, you can request review from the Assessor and may file a formal appeal with the Thurston County Board of Equalization.

2026 ASSESSMENT APPEAL DEADLINE Monday, November 16, 2026 · 5:00 PM

The county mailed 2026 Official Property Value Change Notices on September 16, 2026. The Board of Equalization identifies November 16, 2026 as the petition deadline unless a particular notice provides otherwise.

Paper filing required for 2026: The Board of Equalization states it is not accepting online, electronic, or email submissions for the 2026 assessment year. The petition requires a handwritten signature, a copy of the front page of the value notice, and timely delivery by an authorized mail, courier, or in-person method.

Step-by-step assessment appeal

  1. Find the 2026 value notice.

    Look for the notice mailed September 16, 2026, or locate it through A+ Parcel Search.

  2. Verify the assessed value and property characteristics.

    Check land, improvements, square footage, condition, and other property record details.

  3. Contact the Assessor if an error appears likely.

    Call 360-867-2200 or email ValueInquiry@co.thurston.wa.us. An informal inquiry does not replace a required formal petition.

  4. Collect valuation evidence.

    Use comparable closed sales, a credible appraisal, dated photographs, or other evidence relevant to the January 1, 2026 valuation date.

  5. Open the Board of Equalization’s 2026 appeals page.

    Download the proper petition and read the current instructions.

  6. Complete one petition per tax parcel.

    The Board requires separate petitions for separate parcels being appealed.

  7. Sign the petition by hand.

    The Board explicitly rejects a typed script-font signature in place of the required handwritten signature.

  8. Attach the front page of your value notice.

    The front page should show the taxpayer’s name, parcel number, assessment values and deadline.

  9. Submit before 5 p.m. November 16, 2026.

    Use permitted U.S. mail, FedEx, UPS, or in-person delivery. Do not rely on an email or an online submission.

  10. Save proof of timely filing.

    Keep copies, delivery records, and any acknowledgment.

  11. Prepare for the hearing.

    The Board considers the evidence submitted for the relevant assessment year and any testimony under its procedures.

  12. Review the decision.

    Further appeal may be available through the Washington State Board of Tax Appeals under separate deadlines.

IMPORTANT ACTIVE 2026 FILING WINDOW Thurston County Board of Equalization — 2026 Appeals

Official petition forms, signature rules, mailing instructions and filing deadline.

Open 2026 Appeal Instructions ↗

Why mailing on the last day is risky

The Board warns that USPS mail is processed in Tacoma and may not be postmarked on the same day you drop it in the mail. A petition mailed November 16 could receive a later postmark and be rejected as late.

For an urgent appeal, follow the Board’s office and drop-box instructions instead of assuming a late-day mailing will satisfy the deadline.

What if an appeal from an earlier year is still pending?

The Board explains that appeals are annual. If you disagree with a new value notice, you must file a new timely petition for that year even if a previous appeal is unresolved or was successful.

Payment obligations continue: A pending Board of Equalization appeal does not automatically suspend property tax payments. The county specifically advises taxpayers to keep current on property taxes while an appeal is awaiting resolution.

How to Find Thurston County Property Tax Payment Receipts

The Treasurer allows taxpayers to look up installment payment records for previous years.

Official steps to find past taxes paid

  1. Open the Treasurer’s Property Search.

    Start at the official Treasurer website.

  2. Locate the correct parcel.

    Search for and open the Property Account Summary.

  3. Find the prior-year installment link.

    The county’s FAQ describes a link labeled Installments Payable/Paid For Tax Year in the property information area.

  4. Enter the four-digit year.

    For example, enter 2025 to review 2025 payment information.

  5. Open the year-specific record.

    Review the first and second installments and available payment details.

  6. Save or print the record.

    Use the page’s available print features or browser printing, as appropriate.

  7. Contact the Treasurer if official documentation is needed.

    Ask about a certified record or additional payment history if the online summary does not meet your requirements.

Federal income tax documentation: If you are collecting property tax payment information for tax filing, review the actual payment dates and relevant federal deduction requirements rather than assuming every charge on the parcel account is deductible.

Does Your Mortgage Company Pay Thurston County Property Taxes?

If your mortgage includes escrow, the servicer may arrange property tax payments. The county says it generally sends a summary postcard, rather than an ordinary payment bill, to accounts marked for mortgage company payments.

That notice is normally mailed around February, using the taxpayer address on file as of the previous December 31.

Before paying separately

  • Confirm with your mortgage servicer which parcel is covered.
  • Check whether the April and October installments are scheduled.
  • Look up the actual Treasurer payment posting.
  • Review escrow shortages or newly assessed taxes after construction.
  • Correct your mailing address if county notices are being sent elsewhere.
  • Do not submit a duplicate payment without checking the account.

Scheduled and automatic payments

Thurston County offers a user-controlled online payment account that can support scheduling or automatic payments. Sign up through the Treasurer’s official website and review the payment authorization carefully.

Legal responsibility: The Treasurer’s FAQ explains that the property owner remains responsible for the taxes even when a mortgage company is expected to pay. If a payment is missed, contact the servicer and county promptly.

What Happens If Thurston County Property Taxes Are Paid Late?

Washington imposes statutory interest and, in qualifying circumstances, penalties on unpaid property taxes. The amount depends on the payment date, tax year, and type of property or account.

Rather than multiplying a generic penalty percentage, obtain the account’s current payoff amount from the Treasurer when payment is overdue.

  1. Open the property account.

    Check the parcel’s outstanding installments.

  2. Review the delinquency status.

    Look for interest, penalties, collection costs, and prior-year amounts.

  3. Contact the Treasurer for an exact payoff.

    For current balances with additional collection actions, call 360-786-5550.

  4. Confirm acceptable payment methods.

    Some advanced delinquency stages may require certified funds.

  5. Pay the full required amount.

    Do not assume a partial payment will be accepted for a delinquent account.

  6. Keep proof of payment.

    Verify the county’s record after processing.

Foreclosure or special collection notice? Contact the Treasurer’s delinquent tax staff promptly. The main county contact directory identifies the past-due accounts and foreclosure office at 360-786-5546. Do not rely solely on the ordinary tax calculator or standard checkout screen when an account has entered foreclosure proceedings.

What Homebuyers Should Know About Thurston County Property Taxes

A home’s previous tax bill is useful background information, but a buyer should verify the current assessed value, applicable tax code area, exemptions, and any pending tax changes.

Before closing

  • Confirm the property number and legal parcel.
  • Review the Treasurer’s outstanding balances.
  • Look for special assessments and delinquency.
  • Check the Assessor’s current value notice.
  • Determine the correct taxing districts.
  • Confirm tax proration arrangements.
  • Identify pending construction or other changes.

After buying

  • Confirm recorded ownership information.
  • Update the property tax mailing address.
  • Check the mortgage escrow schedule.
  • Look for new assessment notices.
  • Review senior or disability eligibility if applicable.
  • Track the April and October payment dates.
  • Retain paid tax documentation.
2026 notice versus 2026 bill: The September 2026 value notice relates to assessed value as of January 1, 2026 and the following collection year. Your 2026 tax bill generally reflects January 1, 2025 values.

Thurston County Property Tax Lookup & Payment Troubleshooting

ProblemPossible explanationRecommended action
Cannot find propertyIncorrect parcel or search formatTry Assessor A+ Parcel Search and verify the property number.
Tax bill not receivedOutdated address or statement lostCheck online account and update mailing address.
Taxes appear unpaidPosting delay or payment mismatchConfirm account and transaction with Treasurer.
Credit card amount higher2.3% processing feeReview official checkout and compare free e-check.
Debit card fee applied1%, $2 minimumUse permitted electronic check if preferred.
Assessment increasedMarket value changes or property characteristicsReview the A+ value notice and contact Assessor.
2026 appeal unclearDeadline and paper petition requirementsReview BOE’s November 16, 2026 instructions.
Exemption not on billApplication pending or eligibility issueContact Assessor and continue paying required taxes.
Mortgage should have paidServicer or escrow issueVerify posting with Treasurer and lender.
Need past tax receiptsHistorical year not selectedUse the Installments Payable/Paid For Tax Year function.
Delinquent account payment rejectedPayment amount incompleteAsk Treasurer for exact payoff and permitted funds.
Future tax estimate seems inaccurateWrong levy rate or tax yearUse the exact parcel’s tax code and taxable value.

Before You Pay Thurston County Property Taxes

Thurston County Treasurer, Assessor & Board of Equalization Contacts

Thurston County Treasurer

Handles: Tax bills, payments, receipts, delinquent taxes, and payment arrangements.

Location: The Atrium Building, Suite 130

Address: 3000 Pacific Avenue SE, Olympia, WA 98501

Phone: 360-786-5550

Email: trsr@co.thurston.wa.us

Office hours: Monday–Friday, 8:00 a.m.–4:30 p.m.

Official Treasurer Contacts ↗

Thurston County Assessor

Handles: Assessed values, parcel information, valuations, property characteristics, and tax relief.

Address: 3000 Pacific Avenue SE, Olympia, WA 98501

Phone: 360-867-2200

Email: asrinfo@co.thurston.wa.us

Valuation questions: ValueInquiry@co.thurston.wa.us

Office hours: Monday–Friday, 8:00 a.m.–5:00 p.m.

Official Assessor Website ↗

Board of Equalization

Handles: Formal property valuation appeals and specified other Assessor decisions.

Location: Thurston County Atrium Building, Room 241

Mailing address: 3000 Pacific Avenue SE, Olympia, WA 98501

2026 appeal deadline: November 16, 2026 by 5 p.m.

Review the official 2026 appeals webpage before submitting the petition.

Official Appeal Filing Instructions ↗

Paying in person, by mail or drop box

Mail or In Person

Thurston County Treasurer

3000 Pacific Avenue SE
Olympia, WA 98501

In-person service is available during regular Treasurer hours. County guidance accepts cash, check, money order, and eligible card transactions in person.

Green Payment Drop Box

The county provides a green payment drop box near the flagpoles outside the Atrium building at 3000 Pacific Avenue SE.

Avoid including cash in an unattended drop box unless the county expressly authorizes it. Use the proper identifying tax statement or parcel details.

Mailing near the deadline: The county warns that USPS no longer guarantees a same-day postmark. Mail early, or use an officially authorized on-time payment method.

Thurston County Property Tax FAQs

Where can I pay Thurston County property taxes online?

Open the Thurston County Treasurer’s official website, select Pay Property Taxes, find your parcel, choose the eligible installment and complete payment through the county’s secure vendor.

How do I look up Thurston County property taxes by address?

Start with the Treasurer’s Property Tax Information link and the property search. If you need to identify the parcel number, use the Assessor’s A+ Parcel Search.

When was the first-half property tax payment due in 2026?

Thurston County’s published first-half deadline was April 30, 2026.

When is Thurston County’s second-half property tax payment due?

The normal statutory date is October 31. In 2026 that date falls on a Saturday, so verify the county’s application of the next-business-day rule before paying. The next business day is Monday, November 2, 2026.

Is there a fee to pay Thurston County taxes by electronic check?

No. The county’s published 2026 payment information states that qualifying electronic check transactions have no additional charge.

What are the Thurston County debit and credit card fees?

The published fees are 1% for debit cards and 2.3% for credit cards, with a $2 minimum transaction fee under the Treasurer’s FAQ.

What is the Thurston County property tax rate for 2026?

There is no single uniform county rate. The combined rate depends on applicable state, county, city, school, fire and special-purpose levies. The county publishes the individual components in dollars per $1,000 of taxable value.

How are Thurston County property taxes calculated?

Property taxes generally depend on the parcel’s taxable assessed value and combined applicable levy rate, with separate statutory exemptions and charges when relevant.

Does Thurston County assess real estate at 100% of market value?

Washington law generally requires taxable real property to be assessed at 100% of true and fair market value. The Assessor’s record and applicable exemptions determine the relevant tax base.

What is A+ Parcel Search?

A+ Parcel Search is the Thurston County Assessor’s public property information service for value reports, neighborhood sales, history and related assessment records.

How do I find old Thurston County property tax receipts?

Search the property through the Treasurer’s Property Search, then find the Installments Payable/Paid For Tax Year link and enter the four-digit year.

Can I schedule automatic property tax payments?

Yes. The Treasurer provides an online user-controlled account with automatic and scheduled payment features, subject to the enrollment process.

What is the income limit for Thurston County senior property tax exemption?

The county’s published 2026 qualifying combined disposable income ceiling is $59,000. The threshold increases to $83,000 under the 2027 program rules, with qualifying standard-deduction provisions.

Can disabled veterans qualify for Thurston County tax exemption?

Yes. The exemption program includes eligible veterans meeting service-connected disability and other qualification requirements. For 2027, the minimum specified qualifying VA rating decreases from 80% to 40%.

What is the 2026 Thurston County assessment appeal deadline?

For notices mailed September 16, 2026, the Board of Equalization lists November 16, 2026 by 5 p.m., unless the property’s notice specifies otherwise.

Can I file my 2026 assessment appeal online?

No. Thurston County’s Board of Equalization states that it is not accepting electronic or emailed submissions for the 2026 assessment year. Follow its paper petition, handwritten signature and notice-copy requirements.

Do I still have to pay property taxes during an appeal?

Yes. An assessment appeal does not automatically suspend tax payments. The county advises taxpayers to keep paying on time to avoid delinquency charges.

What if my mortgage company should pay my tax bill?

Check the mortgage escrow arrangement and verify the Treasurer’s property payment history. The property owner remains responsible if the expected payment does not occur.

What should I do if property taxes are already delinquent?

Contact Thurston County Treasurer at 360-786-5550 for an up-to-date payoff, including required penalties, interest and collection costs.

Is PropertyTaxUSA.org an official Thurston County website?

No. PropertyTaxUSA.org is an independent information service. The County Treasurer, Assessor, and other responsible public offices administer official property taxes and appeals.

Thurston County Property Tax Resources

These official county and state sources support the lookup, tax-rate, payment, exemption, and appeal instructions in this guide.

Editorial review: October 11, 2026. The article distinguishes 2026 tax collections from the 2026 assessment notices affecting later taxes. Account balances, levy rates, tax relief eligibility, and payment deadlines should always be verified for the appropriate year and parcel.

Thurston County Property Tax — What to Do Next

Start with the Treasurer to look up your tax bill or pay online. Use the Assessor’s A+ Parcel Search to review valuation and property characteristics. If you are calculating taxes, obtain your parcel’s actual combined levy rate. If you disagree with the 2026 assessed value, review the Board of Equalization’s November 16, 2026 filing requirements while there is still time to submit the correct paper petition.

PropertyTaxUSA.org is an independent educational publisher and does not process government property tax payments.

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