McKinney homeowners pay a median $7,791 a year in property tax on a median $471,800 home, an effective rate of about 1.65% (Census ACS 2020β2024). The 2025 combined rate is about 1.66%β1.90% of taxable value depending on school district, before MUDs or PIDs. Protests go to Collin CAD, and the 2027 deadline is Monday, May 17, 2027, or 30 days after your notice, whichever is later.
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McKinney homeowners pay a median $7,791 a year in property tax on a median $471,800 home, an effective rate of about 1.65% (Census ACS 2020β2024). The 2025 combined rate is about 1.66%β1.90% of taxable value depending on school district, before MUDs or PIDs. Protests go to Collin CAD, and the 2027 deadline is Monday, May 17, 2027, or 30 days after your notice, whichever is later.
Your McKinney tax bill is several separate taxes added together. Each taxing unit sets its own 2025 rate per $100 of taxable value (Texas Comptroller, 2025 Tax Rates and Levies):
The school district is usually more than half your bill, so two McKinney homes with the same value can owe different amounts. Municipal utility districts (MUDs) and public improvement districts (PIDs) add more in some subdivisions. Check the taxing units listed on your notice.
Homestead exemption: Texas school districts must exempt $140,000 of a homestead's value, plus another $60,000 for owners 65 or older or disabled (Texas Comptroller). On McKinney ISD's rate, the $140,000 exemption cuts about $1,546 a year off the school portion. Homestead appraisal increases are capped at 10% a year, plus new improvements.
McKinney is entirely in Collin County, and Collin CAD's office is in McKinney.
How to protest your McKinney property taxes
Want a licensed consultant to handle it? A McKinney property tax consultant files with Collin CAD, handles the informal review and represents you at the ARB.
Protest results
Results vary by property, and a reduction is not guaranteed. TaxDrop Pro costs 1% of the assessment reduction, with no fee unless we lower it. See the Texas property tax protest statistics.
The median McKinney homeowner pays about $7,791 a year on a median $471,800 home, an effective rate of about 1.65% (U.S. Census Bureau ACS 2020β2024). Your bill depends on your appraised value, exemptions and school district.
For 2025, the City of McKinney rate is $0.4123 per $100. Adding the county, school district and Collin College gives a combined rate of about 1.66%β1.90% before special districts and exemptions (Texas Comptroller).
Monday, May 17, 2027, because May 15 falls on a Saturday, or 30 days after your appraisal notice was mailed, whichever is later.
Collin Central Appraisal District (Collin CAD) appraises all of McKinney. Protests are heard by the Collin County Appraisal Review Board.
You can protest yourself for free. A licensed consultant gathers evidence, negotiates with Collin CAD and attends the ARB hearing for you. TaxDrop Pro charges 1% of the assessment reduction and nothing if your value isn't lowered.
Filing a protest carries no penalty. The appraisal district or ARB decides your value based on the evidence, and in 2025, 62% of Collin County residential protests ended with a lower market value.
More on McKinney-area property taxes