The Texas Tax Code establishes a strict timeline of deadlines throughout the year. Missing just one of these dates can mean losing your right to appeal an unfair assessment and being forced to pay inflated taxes for the entire year.
Whether you own commercial real estate or a residential home, understanding the property tax protest deadline in Texas is critical. We have scoured the Tax Code to compile the most important dates you need to mark on your calendar for the 2026 tax season.
This is the date that taxable values are officially determined. In other words, the appraisal district assesses what your property was worth exactly on January 1st of the current tax year.
This is the last day for the chief appraiser to send out applications for agricultural designations and exemptions that require annual renewal. It is also the deadline for disabled homeowners, those age 65 or older, or disabled veterans to provide notice of intent to pay by installment.
Taxes imposed the previous year become delinquent on this date if a bill was mailed on or before Jan. 10 of the current year. This is also the deadline for motor vehicle, vessel, and heavy equipment dealers to file inventory declarations.
This is the deadline (or as soon as practicable thereafter) for the chief appraiser to mail notices of appraised value for single-family residence homestead properties. They must also notify homeowners if an exemption approved the previous year was canceled or reduced.
This is the last day to file renditions and property reports for many property types, including business personal property. The chief appraiser must extend this deadline to May 15 upon written request by the property owner.
This is the final day to file most exemption applications or to notify the district that a property no longer qualifies for an exemption.
This is the deadline (or as soon as practicable thereafter) for the chief appraiser to mail notices of appraised value for properties other than single-family residence homesteads, such as commercial real estate.
MAY 15: The Texas Property Tax Protest Deadline
May 15th is the last day to file most protests with the Appraisal Review Board (ARB). Alternatively, the deadline is 30 days after the notice of appraised value is delivered to you—whichever date is later. If you miss this window, you lose your right to appeal your property taxes for the year.
Any taxes that remain delinquent from the previous year will begin to incur a substantial 12% penalty.
The Appraisal Review Board must approve appraisal records by July 20th. However, in larger counties (populations over 1 million), the board of directors may postpone this deadline to August 30th.
Our dual-licensed property tax attorneys handle the deadlines, the paperwork, and the hearings. No upfront fees. No savings, no charge.
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At a critical time when a property was in lease-up, we were faced with an unreasonable and unjustified assessment.
Brandon’s tenacity and responsiveness resulted in a fair assessment and the largest value change I've seen in my career.
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