Collin County Property Tax Guide 2026
Complete guide to Collin County (CCAD) property tax — rates, deadlines, payment options, and how to protest your appraisal in Plano and surrounding areas.
Key Dates
- Payment due
- January 31, 2026
- Notices mailed
- April 2026
- Protest deadline
- May 15, 2026
- ARB Hearings
- July-September 2026
Tax rates
Average Total (Collin): 1.8% - 2.3%
- School district
- ~1.0-1.2%
- County
- ~0.15%
- City
- ~0.4-0.6%
- Special Districts
- Varies (MUD/Special Districts)
About Collin Property Tax
Collin Central Appraisal District (CCAD) administers approximately 493,000 appraisal accounts across one of the most rapidly growing counties in the United States, encompassing Plano, Frisco, McKinney, Allen, Richardson (partial), Wylie, Prosper, Celina, and numerous smaller communities. Collin County's population growth has consistently outpaced its neighboring Dallas and Denton counties, fueled by corporate relocations, technology campuses, and some of the highest-rated school districts in Texas. This growth dynamic creates a specific appraisal challenge: CCAD's mass appraisal model struggles to correctly value new construction and recently completed subdivisions where comparable sales are still accumulating, sometimes resulting in appraisals that overshoot actual builder price adjustments or incentive-adjusted sale prices. CCAD publishes its data through the Texas Open Data Portal (Socrata API) and provides ARB protest history for the past five years. Dallas County and Denton County border Collin, and many Frisco properties straddle the Collin-Denton line.
Average Home Value
$450,000
Typical Annual Tax
$9,900/year
Official Resources - Collin
Why Protest in Collin?
- Collin County's rapid growth attracts aggressive appraisals in new-construction neighborhoods where CCAD uses builder list prices rather than incentive-adjusted net sale prices as comparable evidence.
- Plano and older Allen neighborhoods have experienced relative value softening as buyers migrate to newer Frisco and Prosper inventory, but CCAD's mass appraisal may not fully capture that competitive discount.
- High school district rates (Plano ISD, Frisco ISD, McKinney ISD, Allen ISD) mean value reductions produce meaningful tax savings — even a $25,000 reduction saves $250–$300/year across ISD taxes alone.
- Collin County publishes five years of ARB history through the Socrata API, making it straightforward to identify what comparable properties actually settled for in prior protest cycles.
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How to Protest Your Property Tax
File online through the CCAD protest portal at collincad.org before May 15; you can submit evidence and schedule an informal conference without visiting the McKinney office.
For new-construction properties, document the builder's actual net sale price including incentives (appliance packages, rate buydowns, closing cost assistance) — these effectively reduce the transaction price below the contract price CCAD may be using as a comparable.
Use the CCAD neighborhood code (nbhdcode field) in the Socrata data to ensure your protest comparables are drawn from the same neighborhood market area as your home — Frisco and Allen neighborhoods are priced differently even at similar square footages.
Check the CCAD property record on collincad.org/propertysearch for errors in square footage, bedroom count, and year built — CCAD's Socrata data contains these fields and discrepancies are relatively common in newly built homes.
Look at prior protest outcomes in the public ARB data: if CCAD settled 80%+ of protests in your neighborhood at values 5–10% below the original notice, that is concrete evidence for your target reduction.
Payment Information
Mail Payment
Collin County Tax Office, 2300 Bloomdale Rd, Suite 2302, McKinney, TX 75069
Property tax exemptions
Homestead Exemption
For your primary residence. Provides $100,000 off school taxes and a 10% cap on annual value increases.
- $100,000 exemption from school district taxes
- Up to 20% exemption from county/city taxes
- 10% annual cap on appraised value increases
Over-65 Exemption
Additional benefits for seniors 65 and older, including a school tax freeze and optional tax deferral.
- Extra $10,000+ exemption from school taxes
- School tax ceiling frozen at age 65 amount
- Optional deferral of all taxes until sale
Disabled Veteran Exemption
For veterans with a VA disability rating. Exemption amount depends on disability percentage.
- 10-69% disability: $5,000-$10,000 exemption
- 70-100% disability: $12,000+ exemption
- 100% disabled: Complete tax exemption
Apply through your county appraisal district. You only need to apply once.
Frequently Asked Questions
Search at collincad.org/propertysearch using your address, owner name, or property ID (a numeric propid like 2898661). The Texas Open Data Portal at data.texas.gov also provides downloadable CSV data.
Cities in Collin County
City-specific property tax guides for Collin County — rates vary by jurisdiction.
Compare with Nearby Counties
| County | Avg. Tax Rate | Major City | |
|---|---|---|---|
| Dallas County | 2.1% - 2.6% | Dallas | View Guide |
| Denton County | 2.0% - 2.4% | Denton | View Guide |
| Grayson County | 2.0% - 2.6% | Sherman | View Guide |
| Hunt County | 2.2% - 2.7% | Greenville | View Guide |
Check your savings potential
Enter your address to see your current tax bill and estimate how much you could save by protesting.
Free. No account required.