Harris County, Texas property-tax payment and appeal deadlines
Tax bills, payment rules, and valuation-review windows are controlled by the local jurisdiction and the governing state framework. The reviewed record below separates published figures from items that still require confirmation with Harris Central Appraisal District.
Rate context
Confirmno single countywide effective 2026 rate; official CAD or county sources list rates by taxing unit and the 2026 rate-adoption cycle.
Statement mailing
PublishedOctober–November 2026; the Harris County Tax Office states 2026 billing statements are delivered during October–November.
Payment deadline
Published2026 tax bills are due upon receipt; January 31, 2027 is the last day to pay without penalty and interest, with delinquency beginning February 1, 2027 subject to weekend/holiday adjustment.
Valuation protest
PublishedMay 15, 2026, or 30 days after the 2026 Notice of Appraised Value was mailed, whichever is later; file with the Harris County Appraisal Review Board.
Do not assume a grace period.
The reviewed record identifies the payment timing above but does not establish a universal penalty schedule for this page. Late charges, interest, collection costs, tax-sale procedures, and lien or foreclosure timelines can depend on state law and the local collector’s process. If the deadline is close or a balance is delinquent, contact the tax collector directly and request the current payoff amount in writing.
Treat a published payment deadline as a hard operational date and retain your receipt or confirmation number.
From assessment to collection
01Valuation and notice
Review the assessment notice as soon as it arrives. The protest window may run from the notice date rather than from the payment due date.
02Statement and account review
Match the tax statement to the parcel or account number and confirm exemptions, assessed value, taxing units, credits, and balance.
03Payment confirmation
Use the official collector channel, then save the receipt, transaction reference, and date posted. A bank submission is not always the same as a county posting date.