How Collin County property tax is calculated
Collin Central Appraisal District (Collin CAD) values the home at 100% of market value on January 1, and in City of Plano, Plano ISD 4 units each apply their own rate per $100 to the value left after their own exemptions.[16][3][4] On a $500,000 home that is $8,514.92 with no exemptions, $6,512.40 as a homestead and $5,591.06 for an owner 65 or older; the biggest single line is Plano ISD at $3,717.90.
| Taxing unit | Rate per $100 | Exempt | Taxable | Tax | Share |
|---|---|---|---|---|---|
| Collin County | $0.1514 | $25,000 | $475,000 | $719.22 | 11.0% |
| Collin College (Collin County Junior College District) | $0.0812 | $100,000 | $400,000 | $324.88 | 5.0% |
| City of Plano | $0.4376 | $100,000 | $400,000 | $1,750.40 | 26.9% |
| Plano ISD | $1.0328 | $140,000 | $360,000 | $3,717.90 | 57.1% |
| Total | $1.7030 | $6,512.40 | 100% |
What property taxes pay for in Collin County
Plano ISD: 57.1% of a homestead bill, 61% without one (the $140,000 exemption cuts only the school line).[7][3] Largest non-school line: City of Plano, 26.9%.
Collin County property tax rates by area
The same $500,000 homestead costs $6,512 in City of Plano, $6,945 in City of McKinney, $6,416 in City of Frisco, $6,987 in City of Allen.
| Area | Total rate per $100 | Tax | Effective rate |
|---|---|---|---|
| City of Plano, Plano ISD | $1.7030 | $6,512 | 1.30% |
| City of McKinney, McKinney ISD | $1.7113 | $6,945 | 1.39% |
| City of Frisco, Frisco ISD | $1.6776 | $6,416 | 1.28% |
| City of Allen, Allen ISD | $1.7510 | $6,987 | 1.40% |
| Taxing unit | Rate |
|---|---|
| Collin County | $0.151414 per $100 |
| Collin College (Collin County Junior College District) | $0.08122 per $100 |
| City of Plano | $0.4376 per $100 |
| Plano ISD | $1.03275 per $100 |
| Total | $1.702984 per $100 (1.7030%) |
| Taxing unit | Rate |
|---|---|
| Collin County | $0.151414 per $100 |
| Collin College (Collin County Junior College District) | $0.08122 per $100 |
| City of McKinney | $0.412284 per $100 |
| McKinney ISD | $1.0664 per $100 |
| Total | $1.711318 per $100 (1.7113%) |
| Taxing unit | Rate |
|---|---|
| Collin County | $0.151414 per $100 |
| Collin College (Collin County Junior College District) | $0.08122 per $100 |
| City of Frisco | $0.425517 per $100 |
| Frisco ISD | $1.0194 per $100 |
| Total | $1.677551 per $100 (1.6776%) |
| Taxing unit | Rate |
|---|---|
| Collin County | $0.151414 per $100 |
| Collin College (Collin County Junior College District) | $0.08122 per $100 |
| City of Allen | $0.4147 per $100 |
| Allen ISD | $1.1037 per $100 |
| Total | $1.751034 per $100 (1.7510%) |
Rates for City of Plano, Plano ISD moved from $1.707713 to $1.702984 per $100 between the 2025 and 2026 tax years:
| Taxing unit | 2025 | 2026 | Change |
|---|---|---|---|
| Collin County | $0.149343 | $0.151414 | +0.002071 |
| Collin College (Collin County Junior College District) | $0.08122 | $0.08122 | no change |
| City of Plano | $0.4376 | $0.4376 | no change |
| Plano ISD | $1.03955 | $1.03275 | −0.0068 |
| Total | $1.707713 | $1.702984 | −0.004729 |
Collin County homestead and over-65 exemptions
On top of the state's $140,000 school homestead, local-option homesteads here are 5% (Collin County, City of Allen; $5,000 minimum); 20% (Collin College, City of Plano, City of Frisco; $5,000 minimum), and the largest over-65 amount is $100,000 (Collin College).[7][8][2][4][5][9][10][11] Statewide rules and savings by county: homestead exemption Texas.
| Exemption | Amount |
|---|---|
| Local-option homestead 5% (Collin County, City of Allen; $5,000 minimum) | 5% (min $5,000) |
| Local-option homestead 20% (Collin College, City of Plano, City of Frisco; $5,000 minimum) | 20% (min $5,000) |
| Over-65 (Collin County); disabled: $20,000 | $30,000 |
| Over-65/disabled (Collin College) | $100,000 |
| Over-65/disabled (City of Plano) | $40,000 |
| Over-65/disabled (City of McKinney) | $90,000 |
| Over-65/disabled (City of Frisco) | $80,000 |
| Over-65 (City of Allen); disabled: $25,000 | $50,000 |
Due date and protests
Collin County bills are due on receipt and delinquent after January 31, with Texas penalties and interest from February.[12][14] A property tax protest goes to the Collin CAD Appraisal Review Board by May 15 or 30 days after your notice[15]. Collin Central Appraisal District takes protests through Texas Comptroller Form 50-132 Notice of Protest (CCAD online portal)[20][21]; test your comps in the property tax assessment appeal calculator and see property tax due dates.
What changed for 2026 in Collin County
Collin County's own rate went from $0.149343 to $0.151414 per $100 for 2026 and Collin College held $0.08122; Plano ISD dropped from $1.03955 to $1.03275 and McKinney ISD from $1.1043 to $1.0664.[4][3] The county itself grants a 5% homestead exemption and $30,000 for owners 65 or older, while Collin College and the City of Plano grant the full 20%.[4][5]
Over-65 exemptions differ widely by city: $40,000 in Plano, $50,000 in Allen, $80,000 in Frisco and $90,000 in McKinney, and Collin College adds $100,000.[4] Frisco straddles Collin and Denton counties; the Denton County side is on the Denton County property tax page.
Collin County exemptions by taxing unit
Each unit picks its own local homestead percentage and over-65 amount, so two neighbors in different cities can get very different breaks; the table lists what the Collin Central Appraisal District reports for 2026.[4]
| Taxing unit | Homestead | Over-65 | 2026 rate per $100 |
|---|---|---|---|
| Collin County | 5% (min $5,000) | $30,000 | $0.151414 |
| Collin College (Collin County Junior College District) | 20% (min $5,000) | $100,000 | $0.08122 |
| City of Plano | 20% (min $5,000) | $40,000 | $0.4376 |
| Plano ISD | $140,000 (state) | $60,000 | $1.03275 |
| City of McKinney | None | $90,000 | $0.412284 |
| McKinney ISD | $140,000 (state) | $60,000 | $1.0664 |
| City of Frisco | 20% (min $5,000) | $80,000 | $0.425517 |
| Frisco ISD | $140,000 (state) | $60,000 | $1.0194 |
| City of Allen | 5% (min $5,000) | $50,000 | $0.4147 |
| Allen ISD | $140,000 (state) | $60,000 | $1.1037 |
What Collin County homeowners typically pay
Census figures for 2024 put the median property tax paid by Collin County homeowners at $7,143 on a median home value of $543,800, an effective rate of about 1.31%.[18][19]
Compare Texas counties on the Texas property tax calculator or any county on the property tax calculator.
Frequently asked questions
What is the Collin County property tax rate?
It depends on the area: $1.7030 per $100 (1.70%) in City of Plano, Plano ISD for 2026, the sum of 4 taxing units.
How much is property tax on a $500,000 house in Plano?
About $6,512 a year with the homestead exemptions (2026 rates), or $8,515 without them.
What does a homeowner 65 or older pay in Collin County?
On a $500,000 home in City of Plano, Plano ISD, about $5,591 in the first year with the over-65 exemptions, before any school tax ceiling.
Sources
- Texas Tax Code §23.23 – Limitation on Appraised Value of Residence Homestead
- Property Tax Calendar
- 2025 Tax Rates and Levies (school district, city, county, special district XLSX; version dated 01/28/2026)
- Collin CAD Entity List – All Years (dataset 6jr2-fr7b behind the Collin CAD rates and exemptions table; years 2025 and 2026)
- Tax Rates and Exemptions (taxing entity exemptions and rates by year)
- Truth in Taxation Summary (Tax Code §26.16): adopted, M&O, debt, no-new-revenue and voter-approval rates by taxing entity, tax years 2022–2026 (Wayback Machine snapshot of 2026-11-04; the live page is behind a bot check)
- Texas Tax Code §11.13 – Residence Homestead
- Property Tax Exemptions
- Texas Tax Code §11.26 – Limitation of School Tax on Homesteads of Elderly or Disabled
- Appraisal and Tax Limitations
- Texas Tax Code §11.261 – Limitation of County, Municipal, or Junior College District Tax on Homesteads of Disabled and Elderly
- Texas Tax Code §31.02 – Delinquency Date
- Texas Tax Code §1.06 – Effect of Weekend, Holiday, or Office Closure
- Texas Tax Code §33.01 – Penalties and Interest
- Texas Tax Code §41.44 – Notice of Protest
- Texas Tax Code §23.01 – Appraisals Generally
- Texas Tax Code §11.43 – Application for Exemption
- Table B25103: Mortgage Status by Median Real Estate Taxes Paid (American Community Survey 2024 1-year)
- Table B25077: Median Value (Dollars), owner-occupied housing units (American Community Survey 2024 1-year)
- Property Tax Calendar
- 2026 Appraisal Notices