Adams County Property Assessor 2026: Search & Tax Records

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Adams County Colorado Property Records Guide

Search Adams County CO Property Values, Tax Accounts, GIS Maps and Deeds

Adams County property research uses several separate public systems. The Assessor maintains parcel information, actual and assessed values, ownership, permits connected to a property, business personal-property accounts, exemptions and valuation appeals. The Treasurer and Public Trustee handles tax statements, payments, delinquent interest and the annual tax-lien sale. GIS supplies parcel and jurisdiction context, while the Clerk and Recorder preserves deeds, mortgages, liens, plats and surveys.

This 2026 guide explains how to search by parcel, account, owner, address or county permit number; how to read Colorado’s split school and local-government assessments; where to find taxes and receipts; how to protect a September Board of Equalization deadline; and when an Assessor map, permit reference or recorded deed still requires independent title, zoning or survey verification.

Search parcel, account, owner, address or permit
Decode actual, adjusted and assessed values
Check installments, interest and tax-sale status
Prepare appeals, exemptions and deed research
Search Property Portal Search Tax Account Open GIS Maps Search Recorded Documents
County Assessor Thomas Swingle
Assessor telephone 720-523-6038
Treasurer and Public Trustee Alex Villagran
Treasurer telephone 720-523-6160
Editorial verification August 6, 2026
Current August 2026 action position

Adams County Assessment Appeal and Delinquent-Tax Status

The Assessor-level 2026 real-property protest period has closed, but the next appeal stage remains open. Adams County must mail real and personal property Notices of Determination by August 15. An owner who disagrees with the Assessor’s decision can file a written petition with the County Board of Equalization by September 15.
Waiting for a determination Watch for the mailed decision through August 15. Keep the envelope because the decision and mailing information control the next appeal.
Need a Board hearing Prepare the petition, Notice of Determination, property record, market evidence and notarized authorization when an agent acts for the owner.
Tax account is delinquent Search the live Treasurer account for interest, advertising charges and sale status rather than using the original January statement.
Upcoming tax-lien schedule: The county’s current due-date calendar lists the online tax-lien sale as opening October 7 and closing November 6. It also warns owners to pay by the stated pre-sale cutoff to avoid added interest and sale charges. Verify the live schedule before relying on these dates.
Personal-property warning: Unpaid business personal-property taxes can lead to distraint, seizure and sale. A closing or business sale does not erase an account created from property taxable on January 1.
Start with the responsible office

Assessor, Treasurer, GIS and Recorder Responsibilities

County Assessor

  • Property portal and parcel data
  • Actual and assessed values
  • Owner and mailing records
  • Building and land characteristics
  • Permits linked to property records
  • Protests, abatements and exemptions

Treasurer and Public Trustee

  • Tax statements and receipts
  • Online and mailed payments
  • Delinquent interest
  • Tax-lien sale administration
  • Tax deferral routing
  • Foreclosures and deed-of-trust releases

GIS and Clerk/Recorder

  • Basic and advanced web maps
  • Parcel and jurisdiction layers
  • Deeds, mortgages and liens
  • Subdivision plats and surveys
  • Document copies
  • Recording alerts and public indexes
Do not mix the offices: The Assessor does not collect the tax bill or establish mill levies. The Treasurer does not decide property value. GIS lines are not official surveys, and recording a document does not prove that it is legally valid or that title is clear.
Related Colorado guide: Adams and Larimer counties follow the same general Colorado actual-value, assessment-rate and mill-levy framework, but their portals, elected officials, appeal administration and tax-sale dates are different. See the existing Larimer County Assessor property-search guide for a county-to-county comparison.

Choose the Adams County Property Task You Need

Find a parcel or owner record Search the Property Portal by parcel, account, owner, address or county permit number.
Read the 2026 assessment Separate actual value, local-government adjusted value, school assessed value and local assessed value.
Find or pay taxes Use the Treasurer tax site for current and prior bills, receipts, balances and payment history.
Check maps or jurisdiction Use Basic Map, Advanced Map, floodplain or other county GIS applications.
Continue a valuation appeal Use the Notice of Determination and file the BOE petition by September 15.
Find a deed, lien or plat Search Landmark by name, instrument, book/page, date, consideration or legal description.

Jump to an Adams County Property Task

Property-record field decoder

How to Read an Adams County Property Record

Account number Assessor and Treasurer identifier used on the Notice of Value, tax statement, appeal and payment account.
Parcel number Land identifier used to connect the property portal, GIS, plats, deeds and planning research.
Owner of record Name maintained for assessment purposes. Verify recent transfers with the Clerk and Recorder.
Situs address Physical property location. It can differ from the owner’s mailing address.
Actual value Assessor’s market or statutory value before the assessment-rate calculation.
Assessed value Taxable value created after the applicable classification, reduction and assessment rate.
Tax area Combination of school, city, county, fire, metro and special districts serving the parcel.
Legal description Short assessment description. The complete recorded deed or plat controls legal language.
Permit reference County permit information associated with the property. It does not prove final approval or code compliance.
Property field What to verify Evidence when incorrect
Land size Acreage, lot dimensions and parcel configuration. Survey, recorded plat or deed.
Finished area Finished living area versus garage, unfinished basement, porch or accessory space. Floor plan, appraisal, permit or measurement.
Year built Original construction and major reconstruction date. Permit, historic record or construction document.
Quality and condition Construction quality, physical condition and deferred maintenance. Dated photos, inspection and repair estimates.
Property class Residential, commercial, industrial, agricultural, vacant or personal-property treatment. Actual use, leases, permits and operating records.
Sale information Sale date, price, parties and whether the transaction was market-based. Recorded deed, closing documents and transfer declaration.
Basic, advanced, floodplain and permit maps

How to Use Adams County GIS and Determine Jurisdiction

Open the county GIS page. Use Adams County GIS Interactive Maps.
Choose Basic Map for a fast parcel review. Use the basic application for frequently requested parcel, road and jurisdiction information.
Choose Advanced Map for deeper layers. Use the advanced application for a broader group of county GIS datasets.
Use Eye on Adams for county cases. Review building permits, code violations and land-use cases in unincorporated Adams County.
Use the floodplain map for flood research. Confirm the effective FEMA and county information before financing, insurance or development decisions.
Confirm whether the property is incorporated. Brighton, Commerce City, Thornton, Northglenn, Westminster, Federal Heights, Aurora, Bennett, Lochbuie and other municipalities can control their own zoning and permitting.
Use recorded documents for legal boundaries. Compare GIS with the deed, plat, easements and a professional survey.
Assessment map only: Adams County states that Assessor parcel data is maintained for assessment purposes and is not an official survey document.
GIS Interactive Maps Access Basic Map, Advanced Map, Eye on Adams and floodplain applications. Assessor Maps and Data Download administrative and appraisal data with file layouts. Maps and Public Records Route property, permit, foreclosure, recording and tax research.
2026 non-reappraisal assessment year

Adams County 2026 Residential Value and Assessment Flow

Colorado county assessors revalue real property in odd-numbered years. The 2025 reappraisal established values using a June 30, 2024 appraisal date and the applicable market-analysis period. In 2026, most accounts continue from that valuation unless new construction, remodeling, demolition, classification changes or corrected property data require an update.

Actual value Assessor’s value before assessment rates.
Review land, improvements and sale evidence.
Local-government reduction Qualifying residential value receives a 10% reduction on the first $700,000.
A minimum assessed value applies.
Separate assessment rates Schools and local governments use different residential rates.
The property can show two assessed-value streams.
Mill levies Each taxing authority applies its levy to the appropriate assessed value.
The Treasurer combines the resulting charges.
Local-government residential 6.80% Applied after the 10% reduction on the first $700,000 of qualifying residential actual value.
School residential 7.05% Applied to residential actual value without the local-government value reduction.
Improved commercial Adams County lists a 25% assessment rate for improved commercial property.
Other property classes The county lists 26% for other classes unless a different rate is established by law.
Rates can change Colorado legislation can change assessment rates. Verify the final rate used on the specific property record and tax statement.
Do not calculate tax from one percentage: Residential school and local-government calculations can use different adjusted values and rates before the mill levies are applied.
Open the Official Assessment Process Review reappraisal timing, valuation methods and current property-class assessment rates.
Treasurer tax-account workflow

How to Search and Pay Adams County Property Taxes

Copy the Assessor account number. Find it on the property record, Notice of Value, statement or prior receipt.
Open the official tax site linked by Adams County. Use Adams County property tax search.
Match the correct account and tax year. Compare the owner, situs, parcel, account, tax area and year before paying.
Review the statement details. Check actual and assessed values, taxing authorities, mill levies, first or second installment, payment history and current balance.
Choose an available payment method. Review online payment, mail, office payment and county drop-box instructions.
Review the live processor fee. Card or electronic-payment terms can change. The final checkout screen controls the transaction charge.
Save proof immediately. Retain the confirmation, payment date, account, year, amount and bank or card record.
Verify the receipt and remaining balance. Reopen the account before assuming a partial, half, full or mortgage payment cleared the tax.
Online payment Search the account at the county-linked tax site, inspect the payment amount and review the fee before authorization. Save confirmation
Payment by mail Include the tax coupon or account number and use the current Treasurer mailing instructions. USPS postmark matters
In-person payment Treasury services are located at the Adams County Government Center in Brighton. Verify suite before visiting
County drop box The county provides a payment drop box near the Government Center entrance. Do not place cash in an unattended box. Retain payment evidence
Half-payment option Current taxes can be paid as two equal halves when the annual tax is more than $25. No custom partial amount
Mortgage escrow Confirm that the mortgage company paid the correct account. A tax statement or public record remains the owner’s responsibility to review. Prevent duplicate payment
Tax statement versus property value: The Assessor controls the valuation record. Treasury controls billing, collection, interest, receipts and tax-sale status.
2025 taxes payable during 2026

Adams County Property-Tax Due Dates

Tax notices Statements are issued for the prior assessment year.
First half Published deadline for the first equal installment.
Full payment Deadline when paying the entire annual tax at once.
Second half Deadline for the remaining equal installment.
Delinquent notices Treasury mails notices for unpaid accounts.
Tax-lien process Advertising and online sale activity occur later in the year.
Only half or full payments: Adams County states that ordinary current taxes cannot be paid in custom partial amounts. When the annual tax is $25 or less, the half-payment option does not apply.
One year in arrears: Property taxes collected in 2026 are based on the 2025 assessment and the mill levies certified for that tax year.
Monthly delinquent interest

Adams County Delinquent Interest and Payoff Verification

Colorado delinquent interest is added monthly after the applicable first-half, second-half or full-payment deadline. The starting month and taxable balance depend on the payment option previously selected.

Use the live account for the exact payoff: Advertising charges, tax-lien-sale fees, prior payments and the selected installment method can change the balance.
“I need the complete current payoff for Adams County account __________ and parcel __________. Please confirm each unpaid year, interest through my intended payment date, advertising or sale fees, required payment method and whether the account is included in the 2026 tax-lien process.”
Open Delinquent Interest Information Review the county’s payment-option table and monthly interest schedule.
Advertising and online tax-lien sale route

Adams County 2026 Tax-Lien Sale Timeline

Delinquent notice Treasury notifies owners of unpaid tax accounts.
Public advertising Qualifying real-property accounts are published before the sale.
Online sale opens The current county calendar lists the sale opening date.
Pre-sale payoff cutoff The county warns of additional charges when payment is delayed into the sale process.
Online sale closes The current county calendar lists a 9:00 a.m. closing time.
A tax-lien sale is not an immediate property sale: The purchaser receives a tax-lien certificate rather than possession, access or automatic ownership of the property.
Owner action: Search the live tax account, call Treasury for a complete payoff and confirm the method required for late-year or redemption payments. Do not send the original statement amount after advertising or sale charges begin.
Open Tax-Lien Sale Information Review listings, sale notices, bidder information and certificate limitations. Open the Current Tax Calendar Verify the latest advertising, cutoff and sale dates before acting.
September 15 BOE filing deadline

How to Appeal an Adams County Property Valuation

Current 2026 appeal action

  1. Obtain the Assessor’s Notice of Determination.
  2. Review the final value and classification decision.
  3. Prepare a separate petition for each account or parcel.
  4. Attach market and factual evidence.
  5. File with the County Board of Equalization by September 15.
Assessor protest Real-property value and classification appeals ran May 1 through June 8.
Notice of Determination The Assessor must mail decisions on real and personal property appeals by August 15.
County Board of Equalization File by September 15. Hearings occur between September 1 and November 1.
Further appeal File within 30 days after the CBOE decision through the state board, district court or binding arbitration route.

Evidence checklist

  • Notice of Value
  • Notice of Determination
  • Current Property Portal report
  • Owner’s requested value
  • Qualified comparable sales
  • Adjustments for material differences
  • Dated property photographs
  • Repair or condition estimates
  • Survey or deed for land errors
  • Notarized authorization for an agent
Standing requirement: Adams County states that the owner is the person legally recognized to appeal. An attorney, consultant, family member or other agent must submit a notarized letter of authorization with the initial appeal when required.
Commercial income property: Rent-producing commercial appeals should include the required income, tenant reimbursement, expense, rent-roll, vacancy and lease information for the applicable periods.
View NOV and Comparables Enter the Assessor account number to review the Notice of Value and property comparables. Open Appeal Instructions Review filing stages, dates, evidence and authorization rules. Open Board of Equalization Review the September 15 filing route and BOE contact information.
“I am appealing Adams County account __________ and parcel __________. The Notice of Determination shows __________. My requested value is __________ because the property record or market evidence shows __________. Please confirm that my BOE petition and authorization documents are complete.”
Separate prior-year correction process

Adams County Property-Tax Abatement or Refund

An abatement petition can request cancellation or refund of taxes that were levied erroneously or illegally because of an incorrect valuation, clerical error, irregular levy or qualifying overvaluation.

Two-year filing period A qualifying petition can generally be filed within two years of the date the tax was levied.
Prior protest restriction The property valuation generally cannot have been protested previously for the same year.
Ownership requirement The petitioner must generally have been the owner of record for the affected year.
Select year Identify the affected tax year.
Check eligibility Confirm ownership and protest history.
Gather proof Document the valuation or levy error.
Submit petition File by email, mail or in person.
Track hearing Monitor the Assessor and Board review.
2026 hearing dates: Adams County lists March 19, June 25, August 13 and December 17 for 2026 abatement hearings. Hearings are conducted remotely by telephone or video.
Not a universal missed-deadline solution: Abatement has separate statutory requirements and cannot automatically replace an annual protest that was missed.
Open Abatement Instructions Review eligibility, filing methods, hearing dates and petition forms.
Senior, veteran and Gold Star programs

Adams County Property-Tax Exemptions

Senior Citizen Exemption The applicant generally must be at least 65 before January 1 and must have owned and occupied the home as a primary residence for at least 10 consecutive years.
Veteran with a Disability Qualification requires the applicable service-connected permanent disability status, honorable discharge, ownership and primary-residence conditions.
Gold Star or Surviving Spouse Separate applications exist for qualifying surviving spouses under Colorado exemption law.
Senior benefit Approved owners receive an exemption on 50% of the first $200,000 of qualifying actual value.
Senior deadline The annual filing deadline is July 15.
Veteran deadline Veteran with a disability applications are due July 1.
Qualified Senior Primary Residence: A temporary 2025–2026 classification can help certain seniors who previously received the exemption and moved to a new primary residence. Review the special eligibility instructions rather than filing only the standard senior form.
Missed 2026 deadline: Contact the Assessor about the next application cycle and any state-authorized late or special filing route. Do not assume a late form will be accepted automatically.
  • Proof of age
  • Recorded ownership information
  • Primary-residence evidence
  • Ten-year occupancy history
  • Trust documents when applicable
  • Surviving-spouse documents
  • Veteran disability determination
  • Current mailing and contact details
Open Adams County Exemption Forms Review senior, veteran, Gold Star, school, charitable and religious exemption information.
State-financed property-tax loan

Colorado Property-Tax Deferral Through Adams County

The Colorado Property Tax Deferral Program allows eligible owners to postpone qualifying property-tax payments. The State Treasurer pays the county and records the deferred amount plus interest as a lien against the property.

Senior eligibility The applicant must meet the state age requirement and own and occupy the property as a primary residence.
Military eligibility Certain people called into qualifying military service can apply under separate statutory rules.
Lien and equity limits Existing mortgages, deeds of trust and prior deferrals cannot exceed the program’s permitted percentage of actual value.
Deferral is not forgiveness: The amount remains a loan secured by a lien and generally becomes payable when the property is sold or the estate is settled.
Verify the current interest rate: The county page may display a prior program-year rate. Use the current Colorado Treasury application and instructions for the active filing year.
Open Deferral Program Information Review ownership, occupancy, lien and state-filing requirements.
Furniture, fixtures, equipment and taxable assets

Adams County Business Personal Property

Business personal property includes movable assets used to operate or support a business, such as furniture, computers, signs, restaurant equipment, office equipment, machinery and furnishings used in income-producing rentals.

January 1 assessment date Property taxable on January 1 can create a full-year assessment even when the business later closes or moves.
Declaration schedule Businesses should file the annual state personal-property declaration and include requested identifying and asset information.
Confidential files Detailed personal-property schedules and taxpayer identification information are protected under state confidentiality rules.
Business sale Confirm that personal-property taxes are resolved at closing and notify the Assessor of the new owner.
Business closure Notify both Assessor and Treasurer before equipment is removed when taxes remain outstanding.
Distraint risk Treasury can distrain, seize and sell taxable personal property when collection is threatened.
Buyer warning: Before purchasing an operating business or its equipment, verify the personal-property schedule, current tax balance and lien status.
“I am calling about Adams County business personal-property account __________. Please confirm whether the current declaration was received, the assessed value, any delinquent tax, the business-status update required and whether an authorization is needed to obtain account details.”
Assessor Business Property Review declarations, taxpayer identification information and assessment responsibilities. Treasurer Personal Property Review tax collection, business sale, closure and distraint information.
Title, tax and permanent-location workflow

Adams County Manufactured-Home Records

Identify status Titled home or real-property improvement.
Check taxes Obtain proof that prior taxes are resolved.
Review title Use the MSO, current title or ownership document.
File location forms Complete permanent-location or removal paperwork.
Update all offices Coordinate Motor Vehicle, Recorder, Assessor and Treasurer.
Purchase deadline The buyer must apply for title in the county where the home is located within the applicable state period after purchase.
Tax proof A Certificate of Taxes Due or qualifying authentication of paid ad valorem taxes may be required.
Permanent location A home converted to real property requires the approved permanent-location and title-purge documents.
Lienholder approval A secured lender may need to approve conversion or title changes.
Removal from real property Converting a previously affixed home back to titled status requires a Certificate of Removal and coordinated review.
Delinquent-tax restriction A tax-lien sale or distraint can block a new title, sale or movement of the home.
Do not close with only a title: Confirm the Assessor account, Treasurer tax status, lienholder approval, permanent-location documents and Recorder filings.
Open Manufactured-Home Instructions Review purchase, sale, title, tax, permanent-location and delinquent-tax requirements.
Landmark grantor/grantee index

How to Search Adams County Deeds, Mortgages and Liens

Start with the Property Portal. Copy the current owner, parcel, account, legal description and sale information.
Open Landmark Web. Use the Adams County recorded-document search.
Accept the disclaimer. Select the search icon that matches the information available.
Search a name as last name then first name. Try current owner, prior owner, trust, estate, company and spelling variations.
Use instrument or book/page data. A reception number or book/page reference can produce a cleaner match than a broad name search.
Use legal and date searches. Landmark also provides document, consideration, date-range and legal-description search tools.
Open, print or download the document. Uncertified online copies are available without charge. Contact Recording for certified copies.
Search related filings. Review deeds, deeds of trust, releases, judgments, liens, easements, covenants, plats and surveys.
Grantor/grantee index The Recording Department does not provide a tract index, so names and document identifiers matter.
Uncertified copies Documents can be viewed, printed or downloaded from Landmark without a watermark login requirement.
Certified copies Call 720-523-6020 or visit the Recording Department.
Current recording fee structure: Adams County changed the common recording fee to $43 per document effective July 1, 2025. Verify documentary fees and special-document charges before submitting an original.
Legal validity warning: The Recording Department records documents meeting basic filing requirements but does not certify their legal validity or authenticity.
Recorded Search Instructions Review the name-search steps and certified-copy route. Recording Fee Schedule Verify current flat fees, documentary charges and copy costs.

Adams County Property-Research Scenarios

User situation Records to review Best next action
Home buyer Property Portal, tax account, deed, GIS, permits, zoning and survey. Verify title, taxes, jurisdiction and legal boundaries before relying on listing data.
Owner waiting for NOD NOV, protest evidence, Assessor portal and incoming determination. Prepare the BOE petition before the September 15 deadline.
Mortgage escrow customer Treasurer account, lender disbursement, statement and receipt. Confirm the lender payment before submitting a duplicate payment.
Delinquent owner Live payoff, interest, advertising fees and tax-lien-sale status. Resolve the balance before the online sale reaches the account.
Senior homeowner Age, ownership history, occupancy and exemption status. Prepare early for the next filing cycle when the July deadline was missed.
Business buyer Personal-property account, asset list, tax status and lien information. Resolve taxable equipment and account liability in the closing documents.
Manufactured-home buyer Title, tax certificate, account, lien status and permanent-location documents. Coordinate Treasurer, Assessor, Motor Vehicle and Recording before closing.
Boundary or zoning research GIS, jurisdiction, deed, plat and survey. Do not use an assessment parcel line as legal boundary proof.

Adams County Property Search Problems and Fixes

Problem Practical fix Correct office or tool
Address search returns no property Use house number and street name only, then remove unit, city and ZIP. Property Portal
Owner search returns too many results Add account type, street range, parcel or address information. Property Portal
Permit number does not match a parcel Check the permit case in Eye on Adams and compare parcel, address and jurisdiction. GIS / Community Development
Value differs from tax statement Confirm tax year, local and school assessed values, tax area and certified mill levies. Assessor / Treasurer
Payment does not appear Confirm bank processing and contact Treasury before submitting another payment. Treasurer
Original tax amount is lower than payoff Review monthly interest, advertising charges and tax-lien-sale fees. Treasurer
Assessor protest deadline was missed Review abatement eligibility and prepare for the next statutory valuation cycle. Assessor
Agent filed without authorization Obtain the required notarized letter; confirm whether the current stage still permits correction. Assessor / BOE
GIS line conflicts with a fence Review the recorded plat and obtain a boundary survey. Recorder / Surveyor
Property is inside a city Use the municipality’s zoning and permit office rather than unincorporated Adams County rules. Applicable city
Deed search returns no result Try prior owner names, trust or company names, reception number, book/page, date and legal search. Landmark / Recording
Business closed but tax remains Confirm January 1 taxable assets and notify both Assessor and Treasurer. Personal Property
Manufactured-home title is blocked Obtain tax proof and resolve any delinquent tax, title or permanent-location issue. Treasurer / Assessor / Clerk
Need clear-title confirmation Use a title company or attorney rather than relying only on public search results. Title professional
“I am researching Adams County account __________ and parcel __________ at __________. The Property Portal, tax statement or recorded document shows __________, but my document shows __________. Please confirm which office controls the field and what evidence I should submit.”

Adams County Property Offices and Contact Information

County Assessor 4430 S. Adams County Pkwy.
Suite C2100
Brighton, CO 80601
720-523-6038
Monday–Friday, 8:00 a.m.–4:30 p.m.
Treasurer and Public Trustee 4430 S. Adams County Pkwy.
Brighton, CO 80601
720-523-6160
Monday–Friday, 7:00 a.m.–5:00 p.m.
Recording Department 4430 S. Adams County Pkwy.
Suite E2400
Brighton, CO 80601
720-523-6020
Monday–Friday, 8:00 a.m.–4:30 p.m.
Board of Equalization 4430 S. Adams County Pkwy.
Suite C5000A
Brighton, CO 80601
720-523-6105
Monday–Friday, 8:00 a.m.–4:30 p.m.
Assessor email assessor@adamscountyco.gov
Do not email exemption applications unless official instructions permit it.
Business Personal Property 720-523-6036
Request accessible forms and account assistance.
GIS Manager 720-523-6712
Use for county GIS and map-resource questions.
Before traveling: Verify the current suite, office hours, county holidays, security access and whether the service requires an appointment or original documents.
Official and county-linked sites open in a new tab

Final Adams County Property Action Center

Use these routes after identifying the correct parcel, account, tax year and responsible office.

Search Property Record Prepare the parcel, account, owner, address or permit number. Search or Pay Taxes Verify the year, account, installment and current balance. Continue 2026 Appeal Prepare the NOD, petition, evidence and authorization by September 15. Search Recorded Documents Prepare names, instrument number, date, book/page or legal description.
Title-specific answers

Adams County Property Assessor Search and Tax Records FAQs

1. How do I search Adams County Colorado property records?

Use the official Adams County Property Portal. Search by parcel number, account number, owner, address or county permit number. The portal also provides account-type and street-range filters for narrowing large result sets.

2. What is the difference between an Adams County account number and parcel number?

The account number connects the Assessor valuation, Notice of Value, tax statement and payment account. The parcel number identifies the land and is useful for GIS, deeds, plats, surveys and planning research. Verify both before paying or filing.

3. Is 2026 an Adams County property reappraisal year?

No. Colorado real property is revalued in odd-numbered years, making 2025 the reappraisal year. Most 2026 actual values continue from 2025 unless construction, remodeling, demolition, classification or corrected property data changed the account.

4. What are the Adams County 2026 residential assessment rates?

Adams County lists a 6.80% residential rate for local governments after the 10% reduction on the first $700,000 of qualifying actual value, and a 7.05% rate for schools. State legislation can change assessment rates, so verify the final property record.

5. When were Adams County property taxes due in 2026?

For prior-year taxes payable in 2026, Adams County lists February 28 for the first half, April 30 for a full payment and June 15 for the second half. Only equal half payments or one full payment are accepted under the ordinary current-tax schedule.

6. How do I pay Adams County property taxes online?

Use the county-linked tax site at adcotax.com. Search the correct account, confirm the owner, parcel, tax year and amount, review any processor fee at checkout, save the confirmation and verify the receipt afterward.

7. What is the 2026 Adams County Board of Equalization deadline?

An owner who disagrees with the Assessor’s Notice of Determination must file a written petition with the Adams County Board of Equalization by September 15. Hearings occur between September 1 and November 1.

8. When is the 2026 Adams County tax-lien sale?

The current Adams County due-date calendar lists the online tax-lien sale as opening October 7 and closing November 6. Owners should verify the live schedule and obtain an exact payoff because interest, advertising and sale charges can change the amount.

9. How do I search Adams County deeds, mortgages and liens?

Use Adams County Landmark Web. Search by name, document type, instrument number, book and page, consideration, date range or legal description. Uncertified documents can be viewed or downloaded online, while certified copies are ordered through Recording.

10. Is the Adams County GIS parcel map a legal survey?

No. Adams County states that its parcel maps are maintained for assessment and public-information purposes. Use a recorded plat, deed and professional boundary survey for legal, construction or boundary decisions.

Official Sources and Editorial Verification

Adams County Assessor Property search, assessment, appeals, exemptions, maps and contact information. Property Search Portal Parcel, account, owner, address, permit and filtered property lookup. Assessment Process Reappraisal timing, valuation methods and 2026 assessment rates. Tax Due Dates Installments, delinquency, advertising and tax-lien-sale calendar. Appeal Process Assessor protest, NOD, BOE and further-appeal dates. Recorded Documents Deeds, liens, maps, search steps and copy information.
What was reviewed: Current Assessor and Treasurer leadership, Property Portal search fields, 2026 assessment rates, maps and downloadable data, tax due dates, delinquent interest, tax-lien calendar, appeal stages, agency authorization, abatements, senior and veteran exemptions, deferral, personal property, manufactured homes, recording fees and office contacts.

CountyPropertyAppraiser.org is an independent informational website. It is not affiliated with the Adams County Assessor, Treasurer and Public Trustee, Clerk and Recorder, GIS Department, County Board of Equalization, Colorado Division of Property Taxation, Landmark Web or any Adams County taxing authority.

Property values, account data, tax balances, assessment rates, mill levies, processor fees, interest, appeal availability, tax-sale schedules, exemption requirements, recording fees, office hours and portal interfaces can change. Confirm time-sensitive information with the responsible official office before paying, filing, appealing, buying, selling, developing, moving a manufactured home or recording a document.

Last reviewed: August 6, 2026.

Slug: adams-county-assessor-property-search

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County Property Search, Homestead & Tax Help Toolkit

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Find the Correct County Office

Property Appraiser, Tax Collector, Clerk, GIS, and VAB offices do different jobs. Pick your task below.

Quick rule: Property Appraiser = value, records, parcel details, exemptions. Tax Collector = bill and payment. Clerk/Recorder = deeds and recorded documents. VAB = formal value disputes.

Official Property Search Helper

Use this when a county article tells you to search by owner, address, parcel number, folio, PCN, STRAP, or alternate key.

Search tip: If address search fails, try only the house number and main street name. Avoid typing Street, Avenue, Road, Drive, unit numbers, or punctuation unless the official portal requires it.

Homestead Exemption Readiness Check

This helps homeowners prepare before filing through the official county Property Appraiser website.

Important: This is not an eligibility decision. The official county Property Appraiser decides approval, required documents, late filing options, and exemption status.

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.

Florida timing reminder: Many Florida tax bills are mailed around November and become delinquent if unpaid after March 31. Always verify exact dates, discounts, and payment fees with the official county Tax Collector.

County Office Call Script Generator

Generate a simple call or email script so you can ask the right office the right question.