Texas Tax Code - TAX § 26.135. Tax Dates for Certain School Districts

(a) A school district that before January 1, 1989, has for at least 10 years followed a practice of adopting its tax rate at a different date than as provided by this chapter and of billing for and collecting its taxes at different dates than as provided by Chapters 31 and 33 may continue to follow that practice.

(b) This section does not affect the dates provided by this title for other purposes, including those relating to the appraisal and taxability of property, the attachment of tax liens and personal liability for taxes, and administrative and judicial review under Chapters 41 and 42.