Harris County CAD Property Tax Calendar 

Stay on top of key deadlines of the Harris County CAD. Knowing the important dates can help you avoid missed opportunities for property tax savings.

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Important dates of Harris County Appraisal District (HCAD)

Stay on top of key deadlines of the Harris County Appraisal District (HCAD). Knowing the important dates for property tax protests, exemption applications, and Harris County appraisal reviews can help you avoid missed opportunities for property tax savings. 

Harris County CAD Important Deadlines

  • January 1
    Date that determines taxable value and homestead status. Over-65 or disability homestead exemption applications may be filed the year the applicant becomes 65 or meets the social security requirements for total disability.
  • January 31
    Last day to pay prior year property taxes without penalty and interest. If a deadline falls on a weekend or legal holiday, the last day to file is automatically extended to the next business day.
  • April 1
    Rendition Deadline-Last day for business property owners to file renditions or request an extension.
  •  April 30
    Last day to apply for many types of exemptions. Last day to apply for agricultural, timber or wildlife productivity appraisal
  •  May 15
    Harris County Property Tax Protest Deadline-Deadline to file written protests to the appraisal review board (or by the 30th day after a notice of appraised value is mailed to the property owner, whichever is later.)
  • October
    Tax bills by HCAD are usually mailed during this month.

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