Multnomah County Assessor Property Search & Tax Lookup 2026

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Multnomah County, Oregon • 2026 Property Guide

Search Multnomah County Property Values, Tax Lots, Statements and Recorded Deeds

Multnomah County combines assessment, recording and property-tax administration inside its Division of Assessment, Recording & Taxation—DART. The fastest public lookup is MultcoPropTax, where the free guest login searches by Property ID or street address and shows ownership, land and building data, Real Market Value, Assessed Value, taxes, payment history and property-tax statements.

For maps and survey research, use the county’s SAIL system. For deeds, mortgages and other recorded documents, use MultcoRecords. For a current tax payment or delinquent balance, stay with MultcoPropTax and DART. This guide explains the 2026 assessment date, Oregon’s RMV/MAV system, November payment discounts, late interest, tax foreclosure, exemptions and the December 31, 2026 value-appeal deadline.

Search by Property ID or street address
Compare RMV, MAV and Assessed Value correctly
Find surveys, tax lots, plats and assessor maps in SAIL
Check tax bills, discounts, payment history and appeals
Search MultcoPropTax Open SAIL Map Search Recorded Deeds Pay Property Tax
County Assessor Mike Vaughn
Property/tax help 503-988-2225
2026 assessment date January 1
2026 appeal deadline December 31
Reviewed August 11, 2026
August 2026 action alert

What Multnomah County Property Owners Should Know Right Now

The 2026–2027 property-tax statement has not reached its normal mailing period yet. Multnomah County mails statements before October 25. Values for the coming statement were determined as of January 1, 2026, and the county has already announced that the 2026 property-tax payment deadline is November 15, subject to the next-business-day rule when the 15th falls on a weekend.
November 15 is Sunday in 2026 Under the county’s weekend rule, the current statement guide lists November 16, 2026 as the practical first payment deadline.
Appeal period is still ahead The Property Values Appeal Board petition can be filed after the current statement is available through December 31, 2026.
Concordia inspections County appraisers are working in Portland’s Concordia neighborhood during June–August 2026 and wear bright orange county-logo vests plus county ID badges.
Useful August task: search your current property record now, save the Property ID, review land/building characteristics and compare the recent value history. When the 2026 statement becomes available, you can immediately compare the new RMV, AV and taxes against the existing record.
Multnomah uses one integrated DART system

Which Property System Should You Use?

MultcoPropTax Ownership, land/building details, RMV, AV, tax amounts, payment history and statement copies.
SAIL Surveys, recorded plats, assessment maps, tax lots and map-linked assessment information.
MultcoRecords Recorded documents since February 2002 including deeds, mortgages and other indexed instruments.
DART Customer Service Property ownership, tax questions, mailing-address changes, payment issues, value routing and historical records.
Different from Florida: Multnomah County integrates assessment, recording and taxation through DART rather than using Florida’s separate Property Appraiser and Tax Collector model. Compare that structure with our older St. Johns County Property Appraiser guide.

Start With the Multnomah County Property Task You Need

Find a property by address Use MultcoPropTax guest access. For best address results, the county recommends omitting the street type when necessary.
Check assessed value Compare RMV, MAV and AV rather than looking only at one value field.
View the tax statement Open the Bills tab after locating the property; online bill copies are available back through 2018.
Research a survey or tax lot Use SAIL by address, tax lot, plat, map or survey information.
Search a deed or mortgage Use MultcoRecords instead of relying solely on the ownership line shown in the tax database.
Appeal 2026 value Review the October statement, contact appraisal staff first, then file with PVAB by December 31 if necessary.

Jump to Your Multnomah County Property Task

Multnomah County Property Record Decoder

Property ID / account number Multnomah County treats the account number and Property ID as the same identifier. It appears on the property-tax statement.
Real Market Value County estimate of what the property would sell for on the open market as of January 1.
Maximum Assessed Value Oregon Measure 50 value that generally grows under a separate statutory formula and is not simply current market value.
Assessed Value The lower of RMV or MAV; this is the value used as the baseline in calculating tax.
Land information Parcel and land characteristics used in assessment and property identification.
Building information Improvements and structural data used during appraisal.
Tax statement Shows AV, taxes, discounts, due dates, prior delinquency and taxing-district detail.
Tax lot / assessor map Use SAIL and map tools for mapped location, recorded plats and survey information.
Account-prefix clue: Multnomah County uses the first letter of the account number to help identify property type. Examples include R for real property, M for manufactured structures, P for floating or business personal property, and U for utility property.
Oregon Measure 50 value system

RMV vs MAV vs Assessed Value: The Multnomah County Formula

Real Market Value RMV Estimated open-market value as of the January 1 assessment date.
LOWER
OF
Maximum Assessed Value MAV Measure 50 value generally constrained by a separate statutory growth formula unless exception events apply.
=
Assessed Value AV The lower of RMV or MAV. This is the baseline value used in calculating property tax.
Standard MAV rule: absent qualifying property changes, Multnomah County explains MAV as the greater of 103% of the prior year’s Assessed Value or 100% of the prior year’s MAV.
The “3% cap” is often misunderstood: Oregon’s 3% concept applies to Maximum Assessed Value under Measure 50—not to Real Market Value and not necessarily to the final property-tax bill.
Why RMV can fall without lowering tax: if RMV remains above MAV, a reduction in RMV may leave AV unchanged. That is why Multnomah County warns that not every successful market-value reduction creates tax savings.
Why assessed value can rise more than expected

What Is “Exception Value” in Multnomah County?

Certain property changes can increase MAV beyond the ordinary Measure 50 growth path. Multnomah County calls these “exception events.”

New construction / additions Significant new construction can create exception value above the ordinary MAV growth calculation.
Major remodeling Remodeling, renovation or rehabilitation can qualify when statutory indexed value thresholds are exceeded.
Partition / subdivision Creating or reconfiguring taxable property can trigger a new value calculation.
Rezoning + use change Rezoning can create an exception when property is used consistently with the new zoning.
Omitted property Discovery of previously omitted taxable property can affect the assessment.
Loss of special treatment Disqualification from an exemption or special assessment can create value changes.
Do not hard-code an old remodeling threshold: Multnomah County notes that after 2024 the one-year and five-year exception thresholds are indexed annually by the Oregon Department of Revenue using CPI.
Routine maintenance is different: ordinary repairs that replace or repair elements with components of similar quality generally do not qualify as exception events.
Survey & Assessor Image Locator

Use SAIL for Multnomah County Tax Lots, Surveys, Plats and Assessor Maps

SAIL is a different tool from MultcoPropTax. It is designed for spatial records and survey research rather than simply checking a tax bill.

Search by address Good starting point for a known Portland, Gresham or county property.
Search by tax lot Useful when you already know the mapped tax-lot identifier.
Search by plat Helps research subdivision records and mapped parcel context.
Search by survey number Useful for professional or historical survey research.
View assessor maps Current assessment/cadastral mapping can be opened through the map interface.
Check recorded surveys Use survey records when boundary research needs more than a general parcel viewer.
2026 update: Multnomah County has introduced a newer ArcGIS Online version of SAIL with faster and improved search features. The older version remains temporarily available but is scheduled to be discontinued.
Boundary caution: assessor maps and GIS are research tools. A legal boundary dispute should be resolved using the recorded deed, plat, survey evidence and a qualified land surveyor.
Read the County’s SAIL Instructions Review the supported search methods and the transition to the new SAIL platform.
2026–2027 tax statement cycle

How the 2026 Multnomah County Property-Tax Statement Works

JAN 1, 2026 Assessment date RMV and other assessment information for the tax year are measured as of January 1.
JUL 1, 2026 Tax lien date Multnomah County states that real and personal property taxes become a lien on July 1.
BY OCT 25 Statement mailing Property-tax statements are mailed before October 25.
NOV 16, 2026 First payment November 15 falls on Sunday, so the next-business-day rule applies.
DEC 31, 2026 Value appeal Last day to timely file the current tax-year PVAB petition.
Green vs yellow statement: Multnomah County says a green statement generally means the owner likely has taxes to pay. A yellow statement means a mortgage company or Oregon senior/disabled deferral program has requested tax information and may be paying the bill.
Oregon rewards early payment

Multnomah County Property-Tax Discounts and Installments

Pay in full Pay the full current-year amount by the November deadline and receive a 3% discount.
Pay two-thirds Pay two-thirds by the November deadline and receive a 2% discount. The remaining one-third is due in May.
Pay one-third No discount. Additional one-third installments are due in February and May.
Statement received Review account, values, discounts and mortgage status.
2026 first deadline Pay full, two-thirds or one-third depending on your payment choice.
Value appeal deadline PVAB petition must be delivered or USPS postmarked timely.
Second installment Applies when one-third was paid in November.
Final installment Current county guide lists May 17 for the final installment in this cycle.
Foreclosure threshold Real property becomes subject to foreclosure after three full years of delinquency.
Taxes under $40: Multnomah County says property tax of less than $40 must be paid in full by the November deadline.
Current online service fees

Compare Multnomah County Online Property-Tax Payment Fees

eCheck $1.50
Debit card $3.95
Credit card 2.55%
Phone payment +$0.50
Added to the applicable electronic payment fee.
Cost-conscious option: for many taxpayers, eCheck is substantially cheaper than paying a large property-tax balance by credit card. Verify the checkout screen before final submission because processing fees can change.
24-hour drop box 501 SE Hawthorne Blvd.
Portland, OR 97214
Checks only; no cash.
Mail Multnomah County Tax Collector
P.O. Box 2716
Portland, OR 97208-2716
Customer Service 503-988-2225
propertytax@multco.us
16% annual statutory rate

What Happens When Multnomah County Property Tax Is Late?

Multnomah County charges interest on past-due amounts at 1.3333% per month, or 16% per year, including a fraction of a month until paid.

Interest continues Unpaid tax accrues statutory interest until the delinquent balance is paid.
Discount is lost The 2% or 3% early-payment discount applies only when the required amount is paid timely.
Oldest tax first Multnomah County applies a property-tax payment to the oldest tax year owing.
Do not calculate a foreclosure payoff yourself: use the live account and contact Tax Collections when a parcel has multiple delinquent years or foreclosure status.
“Please confirm the full amount required to bring Property ID __________ current through __________, including delinquent tax, 1.3333% monthly interest, foreclosure status and any additional collection charges.”
Three-year real-property threshold

Multnomah County Property-Tax Foreclosure Timeline

Tax becomes delinquent Unpaid real-property installments move into delinquency and begin accruing interest.
Three full years Real property becomes subject to foreclosure when three years have elapsed from the earliest delinquency.
County foreclosure process Owners receive notices as the county begins the legal property-tax foreclosure process.
County example: Multnomah County explains that 2022 taxes became fully delinquent in May 2023, and property still owing 2022 or earlier tax becomes subject to the 2026 foreclosure process.
Foreclosure payment help: if a property is already in foreclosure, call Tax Collections at 503-988-3334 before making assumptions from the ordinary payment screen.
Review Multnomah County Foreclosure Guidance Check the current three-year rule, foreclosure process and Tax Collections contact.
Current 2026 value appeal

How to Appeal Multnomah County Property Value in 2026

Read statement Review 2026 RMV, AV and property information.
Contact appraiser Ask how January 1, 2026 value was determined.
Gather evidence Sales, appraisal, condition and property-data corrections.
File PVAB petition Submit current tax-year appeal by December 31.
Board hearing Hearings run from February through April 15, 2027.
2026 filing deadline December 31, 2026
Filing fee $30 per property account
Submission Mail or in person; county says email and fax appeals are not accepted.
Appeal value, not the tax bill: Multnomah County says taxpayers may appeal the current year’s Real Market Value or Specially Assessed Value. You cannot appeal simply because you dislike the amount of tax.
USPS postmark matters: the county uses the U.S. Postal Service postmark to determine timeliness for mailed appeals. A private postage-meter imprint is not treated as the required postmark.

Evidence checklist

  • 2026 property-tax statement
  • MultcoPropTax property record
  • Property ID / account number
  • Comparable January 1 market evidence
  • Recent arm’s-length sales
  • Photos showing condition problems
  • Repair estimates when relevant
  • Independent appraisal when useful
Open Multnomah County Property Value Appeal Process Download the real-property petition and review the $30 fee, submission address and hearing preparation.
Special property-tax programs

Multnomah County Senior, Disabled, Veteran and Special Assessment Programs

Senior Citizen Deferral Oregon’s program can allow qualifying homeowners age 62 or older by April 15 to defer property taxes. The State pays the tax and records a lien on the property.
Disabled Homeowner Deferral Qualifying homeowners receiving federal Social Security disability benefits can apply for state property-tax deferral subject to income, equity and other program rules.
Disabled Veteran Exemption Qualifying disabled veterans may receive a property-tax exemption under Oregon law.
Active Duty Military Certain deployed Oregon National Guard or Reserve members may qualify for exemption on their primary residence.
Surviving Spouse / Partner Certain surviving spouses or partners of veterans may qualify for a property-tax exemption.
Specially Assessed Property Farm, forest, historic and open-space programs can create Specially Assessed Value below ordinary market treatment when statutory requirements are met.
Senior/disabled filing window: Multnomah County accepts deferral applications from January 1 through December 1 for taxes due that year. Applications after April 15 require a late fee and approval is still determined by the State of Oregon.
Deferral is not forgiveness: the State pays the eligible property taxes and records a lien against the property. Read the repayment and disqualification rules before applying.
Open DART Special Programs Review homeowner, housing and special-assessment programs before choosing an application.
MultcoRecords Digital Research Room

How to Search Multnomah County Deeds, Mortgages and Recorded Documents

MultcoRecords is separate from MultcoPropTax. Use it when the task involves a recorded legal document rather than an assessment or tax balance.

Open MultcoRecords. Go to MultcoRecords.com.
Search by name, date or document type. The county says the online recorded-document collection covers February 2002 forward.
Review the index fields. Search results can show document number, type, recording date, party names/types and legal description.
Open the correct record. Compare legal description and parties rather than relying on a similar surname alone.
Add a copy to the cart if needed. Non-certified and certified document orders can be handled through the online system.
Use county research room for deeper history. The Multnomah Building maintains public-access systems and microform records that predate the modern websites.
Older indexed records: Multnomah County states that recorded document indexes from 1965 to the present are available electronically through public-access resources, even though the MultcoRecords web collection begins in February 2002.
Online image ≠ guaranteed certified record: MultcoRecords warns that index images are not automatically certified as true, complete and exact copies of the recorded instrument. Order a certified copy when formal proof is required.
Portland • Gresham • Troutdale • Fairview • Wood Village • rural Multnomah

Buyer’s Property Search Checklist Before Closing

Check Why it matters Official route
Property ID Connects assessment, bill, tax history and map research. MultcoPropTax
RMV Shows the county’s market-value estimate as of January 1. MultcoPropTax
MAV / AV Explains why taxable assessed value can be far below RMV. DART / statement
Exception value Recent additions, remodeling or discovered omitted property can raise MAV after purchase. Appraisal
Current taxes Confirms whether November/February/May installments are paid. MultcoPropTax
Delinquent taxes Old balances accrue 16% annual statutory interest and can lead to foreclosure after three years. Tax Collections
Recorded deed Confirms the recorded transfer and legal-description information. MultcoRecords
Survey / plat Provides stronger boundary evidence than a general parcel map. SAIL / Surveyor
Zoning / permits Portland, Gresham and unincorporated county property can follow different land-use systems. Local planning / Portland Maps / GreshamView
Deferral / special program A yellow statement or special-assessment treatment can affect how taxes are being paid or valued. DART / Oregon DOR
“I am researching Multnomah County Property ID __________ before closing. Please confirm the 2026 RMV, MAV/AV, current and delinquent tax status, exception value if any, special assessment or deferral status and any recent ownership changes that may not yet appear throughout all county systems.”

Multnomah County Property Search Problems and Fast Fixes

Problem What to do Best source
Address search returns nothing Remove street type such as Street, Drive or Lane and search the core address. MultcoPropTax
Need property account number Search address; Property ID shown in the result is the account number. MultcoPropTax
Need an old tax bill Bills are online back through 2018. Contact DART for earlier statement copies. MultcoPropTax / DART
Need old value history County says value and tax data are available back through 2008; use TaxGraph for recent five-year visualization. MultcoPropTax / TaxGraph
Need survey Search SAIL by address, tax lot, plat or survey number. SAIL
Need deed Use MultcoRecords rather than relying on the tax owner line. Recording
RMV fell but tax did not Compare RMV with MAV. If MAV remains lower, AV may not decline. Appraisal / DART
AV rose more than 3% Ask whether exception value or the RMV/MAV relationship caused the change. Appraisal
Mailing address is wrong Submit a signed owner mailing-address correction request to DART. DART
Mortgage company may pay tax A yellow statement signals lender or deferral-program involvement; verify before paying twice. Statement / lender
Property is in foreclosure Call Tax Collections at 503-988-3334 for a current payoff and payment options. Tax Collections
Want to appeal tax amount PVAB reviews property value, not dissatisfaction with the tax amount itself. PVAB

Multnomah County Assessment, Recording & Taxation Contact

DART Customer Service 501 SE Hawthorne Blvd.
Suite 175
Portland, OR 97214
503-988-2225
Office hours Monday–Friday
8:30 a.m.–4:30 p.m.
Except legal holidays
Appraisal Support 503-988-0078
appraisalsupport@multco.us
Property Values Appeals Board 503-988-2273
pvab@multco.us
Public research room: MultcoPropTax and MultcoRecords can both be used free at the county Customer Service counter. The county also maintains microform and older recorded/property records that predate the current websites.
Official live actions

Multnomah County Property Records Action Center

Search the parcel once, save the Property ID, then use the right official tool for the next task.

Search Property / Tax Guest login for ownership, values, taxes, history and statements. Search SAIL Maps Tax lots, assessment maps, plats and survey information. Search Recorded Documents Deeds, mortgages, legal descriptions and other recorded instruments. Appeal 2026 Value Review petition, $30 fee and December 31 filing requirement.
10 Multnomah County-specific answers

Multnomah County Assessor Property Search FAQs

1. How do I search Multnomah County property records?

Use MultcoPropTax.com and choose the free guest login. Search by Property ID or street address, select the matching property and review ownership, land and building information, values, taxes, payment history and property-tax statements.

2. Can I search Multnomah County property by owner name?

The free MultcoPropTax guest search is primarily documented by the county for Property ID or street-address lookup. Expanded search capabilities are available through subscription access. For recorded deeds and owner-name document research, use MultcoRecords.

3. What is the difference between RMV, MAV and AV in Multnomah County?

Real Market Value is the county’s estimate of open-market value as of January 1. Maximum Assessed Value is the Measure 50 value calculated under Oregon law. Assessed Value is the lower of RMV or MAV and is the baseline value used for property-tax calculation.

4. When are Multnomah County property taxes due in 2026?

Oregon’s statutory payment date is November 15, but November 15, 2026 falls on Sunday. Under Multnomah County’s next-business-day rule, the current statement guide lists November 16, 2026 for the first payment deadline. Additional installment dates follow in February and May.

5. What discount do I get for paying Multnomah County property tax early?

Paying the full current-year amount by the November deadline qualifies for a 3% discount. Paying two-thirds by the November deadline qualifies for a 2% discount. Paying only one-third does not receive a discount.

6. What happens if Multnomah County property tax is late?

Multnomah County charges interest on past-due property tax at 1.3333% per month, equivalent to 16% per year, including a fraction of a month. Payments are applied to the oldest tax year owing first.

7. How do I appeal my Multnomah County 2026 property value?

After the current tax statement is available, file a petition with the Property Values Appeal Board by December 31, 2026. The county charges a $30 filing fee per account. Appeals are accepted by mail or in person, not by email or fax.

8. Where do I find Multnomah County surveys and assessor maps?

Use SAIL, the Survey and Assessor Image Locator. It can search by address, tax lot number, plat name, survey number and other map information and provides access to surveys, recorded plats, assessment maps and property information.

9. Where do I search Multnomah County deeds and mortgages?

Use MultcoRecords.com. The online recorded-document system covers records since February 2002 and supports searches by name, date and document type. Results include document number, type, recording date, party information and legal description.

10. When can Multnomah County foreclose for unpaid property taxes?

Real property becomes subject to property-tax foreclosure when three full years have elapsed from the earliest delinquency. Owners with property already in the foreclosure process should contact Multnomah County Tax Collections directly for current payoff and payment instructions.

Official Sources and Editorial Verification

Property Search Tools & Maps MultcoPropTax, SAIL, TaxGraph, tax-district viewer and other county property tools. Property Assessment FAQs RMV, MAV, AV, Measure 50, exception value and Property ID instructions. Property Tax Payment FAQs Discounts, due dates, online fees, late interest and account-number help. Property Values Appeal Process December 31 deadline, $30 fee, petition instructions and hearing schedule. Research Online MultcoRecords, MultcoPropTax and Public Research Room access. SAIL Tax assessor maps, surveys, recorded plats and new ArcGIS search platform.
Verified for this 2026 update: MultcoPropTax guest search by Property ID/address; tax and value history; bills back through 2018; January 1, 2026 valuation date; RMV/MAV/AV formula; Measure 50 exception rules; current SAIL transition; November 2026 payment timing; 3% and 2% discounts; $1.50 eCheck, $3.95 debit and 2.55% credit-card fees; 1.3333% monthly delinquent interest; three-year foreclosure threshold; December 31, 2026 value-appeal deadline; $30 appeal fee; senior/disabled deferral rules; MultcoRecords coverage; and current DART contact information.

CountyPropertyAppraiser.org is an independent informational website. It is not affiliated with Multnomah County, DART, the Multnomah County Assessor, Property Values Appeal Board, Oregon Department of Revenue, MultcoPropTax, MultcoRecords, SAIL, ArcGIS or any mapping, recording or payment vendor.

Property values, tax balances, payment-processing fees, exception thresholds, appeal forms, foreclosure status, exemptions, deferral income limits, officeholders and online systems can change. Verify parcel-specific and deadline-sensitive information with Multnomah County or the State of Oregon before paying, appealing, buying property, relying on boundaries or taking legal action.

Last reviewed: August 11, 2026.

Slug: multnomah-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

Use this to organize your questions before calling the Property Appraiser or preparing an appeal.

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.

Property Tax Bill Direction Helper

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

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