The local tax guide · Texas
Harris County
property tax, explained.
A Harris County property can owe taxes to several entities. The county rate alone does not describe the whole bill, and the same exemption may not apply to every line. Start with the parcel’s list of taxing units.
Sources reviewed
Follow the dollars
Two taxing units can use two different values
For a hypothetical unit, $300,000 taxable value × $0.40 per $100 gives $1,200. A second hypothetical unit taxing $250,000 at $1.00 per $100 adds $2,500. Together those two lines total $3,700. Applying their combined 1.40 rate to the first value would incorrectly give $4,200. These are teaching inputs, not current local rates.
Annual value-based tax for one unit. Excludes other taxing units, tax ceilings, credits, penalties, interest and payments already made.
Use the inputs from your record
Check one Harris taxing unit
Annual illustration
$1,200.00
Using the starting example inputs.
- Taxable base
- $300,000.00
- Value-based tax
- $1,200.00
Annual value-based tax for one unit. Excludes other taxing units, tax ceilings, credits, penalties, interest and payments already made.
Match the value and rate year. Calculations happen in your browser; this form does not submit your inputs.
Use HCAD for the value and the Tax Office for the bill
The Harris County Tax Office identifies Harris Central Appraisal District (HCAD) as the agency that establishes taxable values and handles exemption and property-description changes. Each taxing unit sets its own rate; the collector applies those rates to the certified roll.
Open the property record through HCAD and retain the account number and tax year. Match those identifiers to the tax statement before comparing dollar amounts. A value or exemption correction belongs with HCAD; a missing payment belongs with the collector.
Build a list of every entity before totaling the bill
The jurisdiction rate directory lists individual entities and year-specific rates. A directory entry does not establish that the entity taxes your parcel. Use your property record to decide which county, city, school or special-district entries apply.
For each applicable entity, write down its name, taxable value, adopted rate, calculated tax and collector. Include a utility or emergency-services district only when it appears in the parcel’s records. Do not assume a Houston postal address determines every district boundary.
The Texas Comptroller’s Harris directory distinguishes active units from collection information. Reconcile the entity list against all issued statements before concluding that one paid statement covers everything.
An exemption and a tax ceiling affect different steps
The Tax Office FAQ directs exemption applications to HCAD and explains tax limitations for qualifying owners. An exemption changes taxable value; a ceiling can limit the resulting tax for a qualifying unit. This calculator only performs value-times-rate arithmetic.
Use the approved exemption for each line instead of copying one reduction across the entire bill. If the issued tax is lower because of a ceiling, retain that adjustment separately. A difference from this calculator does not by itself mean the collector made an error.
Distinguish annual tax from the balance still due
Use the search and payment link on the official Tax Office page to review statements and receipts. Compare the year, entity charges, adjustments and recorded payments. The amount calculated above is annual tax for one line, not a payoff quote.
Before contacting an office, save the specific line you cannot reconcile and the matching HCAD record. For timing questions, consult the current payment FAQ and issued statement, including any applicable weekend or holiday adjustment.
Sources and review scope
Property Tax Almanac checked these official sources on September 26, 2026. Illustrative inputs are labeled; this review does not establish every parcel’s current rate or individual eligibility.
- Harris Tax Office overview — HCAD, rate-setting and collection responsibilities.
- Jurisdiction tax rates — Individual taxing-unit rates; no current rate used as the default.
- Harris tax FAQ — Exemption applications, limitations and billing.
- Comptroller Harris directory — Taxing units and collection coverage.
The calculator divides the taxable base by 100, multiplies by the entered rate and rounds to cents. It is a bill-checking tool, not an official tax determination. Other site tools may use different benchmark assumptions.
Report a correction with the page, tax year and official source. See our data methodology or return to Texas counties.