Texas Property Tax Assessors

Collin County, Texas Tax Assessors' Office

Collin County Assessors Phone Number
Collin County Tax Assessor and Collector
1800 North Graves Street
University Drive Courts Facility
McKinney, Texas 75069

Where is the Collin County Tax Assessor's Office?

The Collin County Tax Assessor, Collector, Delinquent Property Taxes, Tax Foreclosure Sales Records Office is located in the University Drive Courts Facility building in McKinney, Texas.

What can the Collin County Assessor's Office do for me?

The Collin County Tax Assessor's Office oversees the appraisal and assessment of properties as well as the billing and collection of property taxes for all taxable real estate located in Collin County.

Contact the assessor's office if you need help with paying your property taxes, applying for a homestead exemption or other tax exemption, reporting upgrades to your home, appealing your property tax assessment, or verifying your property records.

Submitting a Collin County property tax appeal

If you believe that your house has been unfairly overappraised (i.e. appraised at a value higher than the true market value of the property), you can attempt to get your home re-appraised at a lower value by contacting the Assessor's Office to submit a property tax appeal.

You will have to submit a form describing your property and sufficient proof that it is overassessed, including valuations of similar homes nearby as evidence. If your appeal is accepted, your home assessment (and property taxes) will be lowered as a result.

If you would like to appeal your property, call the Collin County Assessor's Office at (972) 547 5020 and ask for a property tax appeal form. Keep in mind that property tax appeals are generally only accepted in a 1-3 month window each year.

For more information and example appeals, see how to appeal your property taxes.

Useful Collin County Facts:

The median home value in Collin County is between $197,814.00 and $200,186.00. Property tax rates are based on property values.

How can I contact Collin County?

You can try contacting the Collin County local government directly with any issues the Assessor's Office can't solve. In many counties, certain property records such as deeds are kept in the county courthouse or county archives instead of at the tax assessors' office.

The county seat for Collin County is located in the Administration Building in McKinney, which is located at 2300 Bloomdale Rd, Suite 4192. You can direct your general inquiries to Collin County with the contact info listed below.

Collin County Phone Number


Collin County Fax Number


Collin County Administration Building Address

Administration Building
2300 Bloomdale Rd, Suite 4192
Mckinney, TX 75071