A Harris County Homestead Has More Than One Tax Break

The pieces show up on different lines of the bill. For 2026, a qualifying residence homestead receives a $140,000 exemption from school-district taxable value. Harris County currently gives homeowners a separate 20% optional exemption for county taxes. A city, MUD, or other taxing unit may use a different local exemption.

The homestead cap is another benefit. Beginning January 1 after the first year the home qualifies, appraised value is limited to the lower of market value or last year's appraised value plus 10% and the value of new improvements. That cap does not freeze market value, tax rates, or the final bill.

HCAD's regular filing window is January 1 through April 30, but a missed date is not always the end of the road. HCAD says a general homestead application may be filed as late as two years after that year's taxes became delinquent. Use Form 11.13 or HCAD's homestead filing route.