Weld County, CO Property Tax Appeals: Two Steps

Weld County, Colorado homeowners appeal in two steps. First, protest your value to the Weld County Assessor between May 1 and June 8. Then, if you disagree with the Assessor's Notice of Determination, appeal to the Weld County Board of Equalization by September 15. The county's 2026 CBOE deadline was September 15, 2026, so that window has closed. Weld says no late appeals of real property can be considered at either step.

Rules for the rest of Colorado are in our Colorado property tax appeal guide.

2026 deadline and where to file

Status as of October 10, 2026.

• Step 1, Assessor protest: between May 1 and June 8, under C.R.S. 39-5-122(1), per the Assessor's protest page. You can file the online form, email appeals@weld.gov, fax (970) 304-6433, mail it, or book a phone or in-person appointment in May at (970) 400-3650 or (720) 652-4255. The page says no late appeals of real property can be considered.
• Notice of Determination: the Assessor mails a written decision on each protest no later than August 15.
• Step 2, County Board of Equalization: the county lists the real property account appeal deadline as received or postmarked by September 15, 2026. The Board cannot accept telephone appeals, and late appeals cannot be considered. File through the CBOE portal, by email to weld-cboe@weld.gov, by fax, by mail or in person at 1400 North 17th Avenue, Greeley, CO 80631.
• Weekends and holidays: a filing due on a Saturday, Sunday or legal holiday is timely if filed the next business day (C.R.S. 39-1-120(3)).
• Next steps: the Colorado Board of Assessment Appeals hears appeals of county board decisions, and you must have gone through both the Assessor and the county board first.

The Assessor's page describes the current cycle only, so confirm your 2027 dates on the notice you receive.

How assessments work in Weld County

The Weld County Assessor sets a value for every parcel, and the Board of County Commissioners sits as the County Board of Equalization to hear appeals of those values. The Assessor's page says your value is its estimate of the property's worth as of June 30, 2024, a date set by law, and that it can only consider sales and market information from 2023 and the first six months of 2024 for the values set for 2025 and 2026. A purchase or an appraisal after June 30, 2024 cannot be used for those years. Values reflect the condition and level of completion on the January 1 assessment date.

You can appeal the valuation only, not the amount of tax. The Assessor asks you to support any value that differs from its own. Weld provides a sales search tool for finding comparable sales in your area. The owner is the only person with legal standing to protest, so a representative needs a written letter of authorization.

Exemptions and their deadlines

• Senior Property Tax Exemption: Weld's Assessor page says that under Senate Bill 26-116 the Qualified Senior Primary Residence classification has ended, and tax year 2026 (taxes payable in 2027) was the last year to apply and be approved. Ask the Assessor how that affects you if you already hold the exemption.
• Property Tax/Rent/Heat Rebate: a Colorado program for qualified low-income applicants 65 or older, surviving spouses 58 or older, and people with disabilities, run by the Colorado Department of Revenue.
• Property tax deferral: eligible seniors and active military service members may defer tax payments with a simple interest loan through the Colorado Department of the Treasury.

Call the Assessor at (970) 400-3650 for current exemption rules.

How to appeal, step by step

1. Find your notice and parcel number. Save the value, the account number and the date. Weld's value is as of June 30, 2024.
2. Compare sales. Use Weld's sales search tool and look at sales from 2023 and the first half of 2024. Check bedrooms, square footage and lot size on the Assessor's record.
3. Protest to the Assessor between May 1 and June 8. Use the online form, or include your name, property address, account or parcel number, phone number and your reason, or attach the Real Property Questionnaire.
4. Read the Notice of Determination. The Assessor mails it by August 15.
5. Appeal to the Board of Equalization by September 15 if you still disagree. Include your signed and dated Notice of Determination, or a letter with the same details. The Board needs it in writing.
6. Go to the state if needed. The Colorado Board of Assessment Appeals hears appeals of county board decisions by video hearing. Taxpayers without an attorney pay no fee for the first two petitions.

What property taxes cost in Weld County

The U.S. Census Bureau's American Community Survey (2020-2024 five-year estimates) puts the median real estate tax paid by Weld County homeowners at $2,440 a year, against a median home value of $471,700. That is an effective rate of about 0.52% of home value (median tax divided by median value). It is a countywide figure: your own rate depends on your city, school district and special districts, so read the rate on your actual bill. About 94,490 homes in the county are owner-occupied. Source: Census Reporter, tables B25103 and B25077.

Check your value before you file

Start with the free Grove Hopper over-assessment check: enter your address and we compare your assessment to the data and tell you whether an appeal looks worth your time. If it does, we prepare your appeal documents. You review, sign and file them yourself with the Weld County Assessor and Board of Equalization. We do not file for you or represent you, and we are not attorneys, accountants or a tax firm.

Contacts

• Weld County Assessor: 1400 N 17th Ave, Greeley, CO 80631 · (970) 400-3650 · (720) 652-4255 · assessor@weld.gov
• Weld County Board of Equalization: 1400 North 17th Avenue, Greeley, CO 80631 · weld-cboe@weld.gov · (970) 400-3650 · fax (970) 304-6433