What is the property tax rate in Weld County?

The combined effective property tax rate in Weld County, Colorado is approximately 0.51%.

Weld County Property Tax Calculator (2026) — Colorado Property Tax Almanac

Property Tax in Weld County, 2026

A calculator and field guide for Greeley-area homeowners — and for anyone considering a move to Weld County — including Colorado's 6.7% residential assessment ratio with the 10%/$700K reduction (HB 24B-1001), the SB 24-233 5.5% annual revenue growth cap, TABOR's voter approval requirement for tax rate increases, and the Senior Homestead Exemption + Disabled Veterans Exemption (each 50% of first $200K of actual value).

Weld County, home to Greeley and 350k Coloradans, operates under Colorado's complex multi-rate residential property tax system. Colorado uses a residential assessment ratio of 6.7% for local government levies (with a 10% reduction on the first $700,000 of actual value under HB 24B-1001) and 7.05% for school district levies. Tax = (Actual Value − Reduction) × AR × Mill Levy / 1,000. The Taxpayer's Bill of Rights (TABOR, passed 1992) requires voter approval for any tax rate increase or new tax.

How the bill is built

Colorado's property tax calculation has multiple steps. Step 1: Actual Value. The Weld County Assessor determines actual value (= fair market value) every other year (odd years). Step 2: Apply reduction. For 2026, the lesser of 10% of actual value, $70,000 (inflation-adjusted), or whatever leaves AV ≥ $1,000 is subtracted. Step 3: Apply assessment ratio. The reduced actual value is multiplied by 6.7% (local govt) or 7.05% (school) to get assessed value (AV). Step 4: Apply mill levy. Tax = AV × mill levy ÷ 1,000. Weld's combined effective rate is approximately 0.51% of actual value. Step 5: Apply Senior or Veterans Exemption. Senior Homestead OR Disabled Veterans Exemption (not both) provides 50% reduction on first $200,000 of actual value (~$100K AV reduction).

HB 24B-1001 (Aug 2024 special session) is why your Colorado tax bill might still be rising. Despite lowering the residential assessment ratio from 6.95% to 6.7-6.8% and adding the 10%/$700K reduction, many Colorado homeowners are seeing 20-40% bill increases for the 2026 tax year — driven by the 2024 reassessment cycle catching up to several years of market value growth, plus new voter-approved mill levy increases and bond debt service. The bill effectively limits future increases but does not roll back the 2024 reassessment surge. Senate Bill 24-233 caps non-school local government revenue growth at 5.5% per year going forward.

TABOR (1992) requires voter approval for tax rate increases. The Taxpayer's Bill of Rights, codified in the Colorado Constitution, requires voter approval for: (1) new taxes, (2) tax rate increases, (3) tax policy changes resulting in net revenue gain, and (4) extension of expiring taxes. TABOR does NOT directly cap property values from rising — which is why HB 24B-1001 was needed to provide assessment-based relief. Voters can (and frequently do) "de-Bruce" their local government — voting to allow excess revenue retention beyond TABOR limits, which is why some CO local governments grow faster than others.

The Senior Homestead Exemption requires 10 consecutive years of occupancy. Established by Article X §3.5 of the Colorado Constitution (2000), the Senior Homestead Exemption provides 50% reduction on the first $200,000 of actual value (~$100K AV reduction) for owner-occupants 65+ who have owned and occupied the property for 10 consecutive years prior to January 1. The 10-year requirement is unusual — it excludes recent transplants regardless of total years lived in Colorado. The Senior Primary Residence Classification (HB 24B-1001, 2025-2026 only) provides "portability" for seniors who previously qualified but moved to a new primary residence within Colorado.

2026 Weld County rate breakdown (effective dollars per $100 of actual value (post 6.7% AR), Greeley district)

Taxing entity	Rate
Combined mill levy (~76 mills × 6.7% AR effective ~$0.51 / $100 AV)	0.5100
Combined total	0.5100

As of April 26, 2026 · From Weld County Assessor.

Note: Weld County is **Northern Colorado's oil-and-gas heartland** — anchored by Greeley (~110K, home to the University of Northern Colorado) and increasingly fast-growing southwest Weld towns (Erie, Frederick, Firestone, Windsor) on the I-25 corridor between Denver and Fort Collins. Weld County is one of the most-prolific oil and gas producing counties in the United States — the Denver-Julesburg Basin (DJ Basin) within Weld County produces approximately 90% of Colorado's oil and 40% of its natural gas. This non-residential tax base substantially subsidizes residential property taxes county-wide.

Note: Weld County effective property tax rates run approximately 0.51% — moderately low for Colorado, with the unusual structural feature that **Weld County's county portion of the mill levy is ~12 mills** (one of the lowest county levies in Colorado). The oil-and-gas property tax base provides this. Greeley ~85 mills (City portion adds significantly), Erie ~75 mills, Windsor ~73 mills, Frederick ~80 mills. Median home values around $465K combined with the lower effective rate produce median annual bills around $2,372 — a substantial value among Front Range counties.

Note: For relocation buyers: Weld County offers some of the **best property tax value in Northern Colorado** — relatively affordable home prices (Greeley median ~$385K, well below Boulder/Larimer/Denver), low effective rates supported by oil-and-gas tax base, and rapid growth in southwest Weld towns. The trade-off: Weld's economy is more cyclical (tied to oil/gas prices), and the Greeley meatpacking-driven economy historically had air-quality issues (though substantially improved in recent decades). Erie and Firestone are popular fast-growing commuter towns for buyers working in Denver, Boulder, or Fort Collins.

Deductions and exemptions for 2026

Colorado homeowner property tax relief is concentrated in four mechanisms: (1) HB 24B-1001's 10% reduction on the first $700,000 of actual value (universal — applies to ALL residential property, not income-tested), (2) the Senior Homestead Exemption (50% of first $200K of actual value for owner-occupants 65+ with 10-year occupancy), (3) the Disabled Veterans Property Tax Exemption (same 50%/$200K for 100% P&T or TDIU veterans), and (4) the Gold Star Spouse Exemption (same benefit for surviving spouses of service members killed in line of duty).

HB 24B-1001 Residential Reduction (universal)

For 2026, the lesser of 10% of actual value, $70,000 (inflation-adjusted starting 2026), or whatever leaves AV ≥ $1,000 is subtracted from actual value before applying the 6.7% local government residential assessment ratio. This is automatic — applies to every residential property without application. The reduction is the largest single piece of relief introduced in Colorado's 2024 property tax reforms (alongside SB 24-233's 5.5% revenue growth cap on non-school local government).

Senior Homestead Exemption (Article X §3.5)

Colorado's constitutional Senior Homestead Exemption provides 50% reduction on the first $200,000 of actual value (~$100K AV reduction) for owner-occupants who are: (a) 65+ as of January 1, AND (b) have owned and occupied the property as primary residence for the 10 consecutive years preceding January 1. The 10-year occupancy requirement is unusual and excludes recent transplants. Surviving spouses of qualifying seniors retain the exemption. Apply with your county assessor by July 15. Once approved, the exemption remains in effect — no annual reapplication. The state reimburses local treasurers for lost revenue (when the legislature funds the program — historically funded since reinstatement in 2012).

Disabled Veterans Exemption (Referendum E, 2006)

Colorado's Disabled Veterans Property Tax Exemption (Article X §3.5, expanded 2006) provides 50% reduction on the first $200,000 of actual value (~$100K AV reduction) for veterans rated 100% Permanent and Total disabled by the VA OR Total Disability Individual Unemployability (TDIU). No age requirement, no income limit, no residency requirement. Surviving spouses retain the exemption. The Gold Star Spouse Exemption (Amendment E, 2022) extends the same benefit to surviving spouses of service members killed in the line of duty. Apply with the Colorado Division of Veterans Affairs by July 1. Long Form (first-time application) requires VA documentation; subsequent years use Short Form.

Senior Primary Residence Classification (2025-2026 only)

HB 24B-1001 created a temporary "portability" classification (in effect for property tax years 2025 and 2026 only) for seniors who previously qualified for the Senior Homestead Exemption but moved to a new primary residence — the 10-year occupancy clock effectively transfers to the new property. Apply for the Qualified Senior Primary Residence Classification with your county assessor.

Appealing your assessment

Colorado property tax appeals run through the County Board of Assessment Appeals. Homeowners file a Notice of Protest with the County Assessor between May 1 and June 8 of the reassessment year (Colorado reassesses every odd-numbered year). The Assessor responds with a decision; if denied, homeowners can appeal to the County Board of Equalization (BOE) by July 15. BOE decisions can be appealed to the Colorado Board of Assessment Appeals (BAA) in Denver within 30 days; from there to District Court within 30 days of BAA's decision. The 2024 reassessment surge created substantial appeal volume — approximately 20% of Colorado homeowners appealed their 2024 valuations.

Cities and towns in Weld County

Weld County contains 6 incorporated municipalities, ranging from Greeley to the smallest village. Search volume for property tax is often city-specific, so here is the complete list — with population from the 2020 US Census, rounded to the nearest 100.

Data: US Census Bureau, 2020 Decennial Census. Populations rounded. Cities marked as "split" straddle a county border — the portion inside Weld County is subject to Weld County's tax rolls, while the portion outside is subject to the adjacent county's.

City or town	Type	Population (2020)
Greeley County seat	city	110,900
Windsor	town	39,600
Erie	town	33,700
Evans	city	22,600
Firestone	town	17,900
Frederick	town	17,500

About city-level property tax rates: The rate breakdown and calculator on this page reflect the Greeley tax district. Other cities in Weld County may pay into different school districts, city rates, and special districts — so their combined rates can differ, sometimes substantially. Always verify the specific rates for your address with the Weld County Assessor before relying on any estimate.

Frequently asked questions

When are Colorado property taxes due?

Colorado property taxes are due in two installments: February 28/29 (first half) and June 15 (second half). Bills under $25 must be paid in full by April 30. Late payments incur 1% per month interest. Most Colorado homeowners pay through escrow via mortgage servicer. Properties sold during the tax year typically prorate the bill at closing. The Weld Assessor office handles billing and collection.

Why did my Colorado property tax go up despite the new tax cuts?

Despite HB 24B-1001 lowering the residential assessment ratio to 6.7% and adding the 10%/$700K reduction, many Colorado homeowners are seeing 20-40% bill increases for the 2026 tax year. The reason: the 2024 reassessment cycle reflects several years of accumulated home value growth (Colorado reassesses every odd year), and the new tax cuts only partially offset the value increases. Voter-approved mill levy increases, bond debt service, and special district expansions also push bills higher. SB 24-233's 5.5% non-school revenue growth cap will limit future increases but does not roll back the 2024 valuation surge.

How do I apply for the Senior Homestead Exemption?

Colorado's Senior Homestead Exemption (50% of first $200K of actual value) requires: (a) age 65+ as of January 1, AND (b) ownership and occupancy of the property for the 10 consecutive years preceding January 1. The 10-year occupancy is unusual — recent transplants are excluded regardless of total years in Colorado. Apply with your county assessor by July 15 (some counties accept late applications until August 15 with no appeal rights). Once approved, the exemption renews automatically — no annual reapplication. The state reimburses the county treasurer for lost revenue (when the legislature funds the program — funded continuously since 2012 reinstatement).

How do I qualify for the Disabled Veterans Property Tax Exemption?

Colorado's Disabled Veterans Exemption (Referendum E, 2006) provides 50% reduction on the first $200,000 of actual value (~$100K AV reduction). Eligibility: (a) honorable discharge, AND (b) VA disability rating of 100% Permanent and Total OR Total Disability Individual Unemployability (TDIU). No age requirement, no income limit, no residency requirement. Apply with the Colorado Division of Veterans Affairs by July 1. Long Form (first-time application) requires DD-214 + VA disability certification; subsequent years use Short Form. Surviving spouses retain the exemption. Gold Star Spouses (Amendment E, 2022) qualify for the same benefit if their service member died in line of duty or from service-connected causes.

What is TABOR and how does it affect Colorado property taxes?

The Taxpayer's Bill of Rights (TABOR), passed by voters in 1992 and codified in the Colorado Constitution, requires voter approval for: (1) any new tax, (2) tax rate increases, (3) tax policy changes resulting in net revenue gain, and (4) extension of expiring taxes. TABOR does NOT directly cap property values from rising with the market — which is why HB 24B-1001 was needed to provide assessment-based relief. Voters can "de-Bruce" their local government — voting to allow excess revenue retention beyond TABOR limits. Many Colorado local governments have de-Bruced over the years, allowing them to retain revenue growth that would otherwise have been refunded under TABOR.

How do I appeal my Colorado assessment?

File a Notice of Protest with the County Assessor between May 1 and June 8 of the reassessment year (Colorado reassesses every odd-numbered year). The Assessor responds with a decision; if denied, appeal to the County Board of Equalization (BOE) by July 15. BOE decisions can be appealed to the Colorado Board of Assessment Appeals (BAA) in Denver within 30 days; from there to District Court within 30 days of BAA's decision. The 2024 reassessment cycle generated unusually high appeal volume — approximately 20% of Colorado homeowners appealed their 2024 valuations. Comparable sales evidence is the most-effective basis for appeal.

About Weld County

Beyond the property tax — a few things you might not know about the place.

Weird fact

Greeley was founded in 1869 as **a utopian agricultural cooperative colony** organized by New York Tribune editor Horace Greeley (the "Go West, Young Man" Greeley) and Nathan Meeker. The Union Colony of Colorado was a planned cooperative settlement based on temperance, irrigation-based agriculture, and shared ownership of public land. Greeley was the first "dry" (alcohol-prohibited) town in Colorado — a status it retained until the 1970s. The Union Colony successfully transformed semi-arid plains into productive farmland through extensive irrigation infrastructure (some still in use today) — the colony's irrigation engineering became a model for Western US agricultural development.

Hometown hero

James Michener

The Pulitzer Prize-winning American novelist (1907-1997, author of Centennial, The Source, Texas, Hawaii, Chesapeake, and many other massive historical novels) lived in Greeley from 1936 to 1942 while teaching at Colorado State Teachers College (now University of Northern Colorado). Michener's novel Centennial (1974), which became one of the highest-rated television miniseries of the 1970s, is set in northeastern Colorado and partially based on Greeley and Weld County's history. Michener donated his papers to UNC, where the Michener Library stands as one of the largest research libraries in Northern Colorado.

Biggest annual event

Greeley Stampede + Cheyenne Frontier Days (border)

The Greeley Stampede (annual, late June through early July, since 1922) is one of the largest professional rodeos in the western United States — drawing 250,000+ attendees over a 12-day run with PRCA-sanctioned rodeo events, country music concerts (typically headlined by major country stars like Reba McEntire, Brad Paisley, Tim McGraw), parades, and the Greeley Stampede Independence Day Fireworks Show. The Stampede is the largest July 4th celebration in Colorado.

Property Tax in Weld County, 2026