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Updated 2025 Tax Year

Collin County
Property Tax Guide

Everything you need to know about property taxes in Collin County, TX. Rates, due dates, exemptions, and how it affects your monthly payment.

7 Official Sources
8 min read
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Quick Facts
Tax Rate
2.0% to 2.5% of assessed value
1st Due
Jan 31
Exemptions
4+ Available
Section 1

How Property Tax Works

Collin County, Texas operates under a property tax system that serves as the primary funding mechanism for local government services, including schools, county operations, municipal services, and special districts. The Collin Central Appraisal District appraises all property in the county at market value, ensuring equal and uniform assessments across the jurisdiction. Property owners receive appraisal notices annually on April 15th, with the district maintaining a commitment to transparent communication of property values to both taxpayers and taxing jurisdictions.

The effective property tax rates in Collin County typically range from 2.0% to 2.5% of assessed value, depending on the specific taxing entities that serve each property. Texas law provides significant protections for homeowners, including a $100,000 homestead exemption for school district taxes and a 10% annual appraisal cap on homestead properties. Based on historical data, the median homestead value in Collin County is approximately $480,773, with tax rates having generally decreased over recent years while property values have increased, resulting in relatively stable tax bills for homestead properties.

Section 2

What Makes Up Your Tax Bill

ComponentTypical Rate RangeDescription
School District$1.00 - $1.30Funds local independent school districts; benefits from $100,000 homestead exemption
County$0.20 - $0.25Supports Collin County operations, courts, law enforcement, and infrastructure
City/Municipality$0.40 - $0.70Varies by city; funds municipal services, police, fire, parks, and utilities
Community College$0.10 - $0.15Supports Collin College district operations and facilities
Special Districts$0.05 - $0.30Includes municipal utility districts (MUDs), emergency services, hospital districts
Total Combined Rate$1.75 - $2.70Actual rate depends on specific location and applicable taxing entities

Note: Rates shown are per $100 of assessed value and vary by specific location within Collin County. The 2025 rates are pending finalization following public hearings.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Collin County, property taxes are due in two installments:

First Installment
Jan 31
Delinquent after Dec 10
Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental taxes in Collin County are triggered by specific events that change a property's assessment during the tax year, primarily new construction, major improvements, or ownership changes that remove previous exemptions. When new construction is completed or substantial improvements are made, the Collin Central Appraisal District reassesses the property to reflect its increased value, and a supplemental tax bill is issued for the additional assessed value prorated for the remaining portion of the tax year.

For example, if a homeowner completes a $100,000 home addition in July (6 months into the tax year), and the combined tax rate is 2.2%, the supplemental tax would be calculated as: $100,000 × 0.022 × (6/12 months) = $1,100. The supplemental tax becomes due immediately upon issuance and follows the same payment procedures as regular property taxes. Property owners receive notification of supplemental assessments and have the same appeal rights as with regular annual assessments.

Example Calculation

Example 1: $300,000 Home with Homestead Exemption

  • Assessed Value: $300,000
  • Less School Homestead Exemption: $100,000
  • Net Taxable Value: $200,000
  • Tax Rate (estimated 2.2%): $200,000 × 0.022 = $4,400
  • Annual Tax: $4,400 | Monthly Escrow: $367

Example 2: $600,000 Home with Homestead Exemption

  • Assessed Value: $600,000
  • Less School Homestead Exemption: $100,000
  • Net Taxable Value: $500,000
  • Tax Rate (estimated 2.2%): $500,000 × 0.022 = $11,000
  • Annual Tax: $11,000 | Monthly Escrow: $917

Example 3: $1,000,000 Home with Homestead Exemption

  • Assessed Value: $1,000,000
  • Less School Homestead Exemption: $100,000
  • Net Taxable Value: $900,000
  • Tax Rate (estimated 2.2%): $900,000 × 0.022 = $19,800
  • Annual Tax: $19,800 | Monthly Escrow: $1,650

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Collin County require property tax escrow accounts, collecting monthly payments along with principal and interest to ensure timely tax payment. Lenders typically collect 1/12th of the annual tax bill each month, plus additional amounts to maintain a buffer in the escrow account as required by federal regulations. Property taxes in Texas are due January 31st annually, and lenders generally pay the full amount directly to the Collin County Tax Assessor-Collector before this deadline.

Property owners should verify their escrow payments annually when tax bills are issued, as assessment changes or rate adjustments may require escrow payment modifications. If your lender's escrow analysis shows a shortage or surplus, payments will be adjusted accordingly. For current tax information, payment options, and to verify that your lender has paid your taxes, visit the Collin County Tax Assessor-Collector website at https://www.collincountytx.gov/tax_assessor_collector/. Property owners remain ultimately responsible for ensuring taxes are paid even when using escrow services.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
  • Plan ahead instead of being surprised by "shortage" letters
Section 6

Frequently Asked Questions

Q: When are property taxes due in Collin County? A: Property taxes are due January 31st annually. There is no split payment option - the full amount must be paid by the deadline to avoid penalties and interest.

Q: How do I apply for a homestead exemption? A: Apply through the Collin Central Appraisal District at https://www.collincad.org/. The $100,000 school district exemption must be filed by April 30th of the tax year, and you must occupy the property as your primary residence on January 1st.

Q: What is the 10% assessment cap for homesteads? A: Texas law limits annual increases in assessed value to 10% for homestead properties, providing protection against dramatic value increases. This cap applies only to the homestead residence, not other properties.

Q: How can I appeal my property assessment? A: File a protest with the Collin Appraisal Review Board by May 15th (or 30 days after receiving your notice, whichever is later). Information and forms are available at https://www.collincad.org/.

Q: What happens if I pay my taxes late? A: Penalties and interest begin accruing February 1st. Penalty rates are 6% in February, 7% in March, 8% in April, and 9% thereafter, plus 1% interest per month.

Q: Can I pay my property taxes online? A: Yes, online payments are accepted through the Collin County Tax Assessor-Collector website. Processing fees may apply depending on payment method selected.

Q: When will I receive my tax bill? A: Tax bills are typically mailed in October, following the completion of tax rate adoptions by all taxing entities in September.

Q: What if I disagree with my tax bill? A: First, verify the assessment accuracy and applicable exemptions. For assessment disputes, contact Collin CAD at https://www.collincad.org/. For billing questions, contact the Tax Assessor-Collector's office.

Verified Sources

Backed by 7 Official Government Sources

Every fact in this guide is sourced from official county, state, and federal documents.

01
County
Collin County Assessorcollincad.org
02
Tax Doc
fy 2025 proposed tax rateeagenda.collincountytx.gov
03
Tax Doc
fy 2026 proposed tax ratecollincountytx.gov
04
Tax Doc
Notice About 2025 Tax Ratescollincountytx.gov
05
Tax Doc
96-1717 Handbook of Texas Property Tax Rulescomptroller.texas.gov
06
Tax Doc
Property Tax Forms - Texas Comptrollercomptroller.texas.gov
07
- Annual Comprehensive Financial Report 2023 ( ...eagenda.collincountytx.gov
All sources verified as of 2025 Tax Year

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