Appraisal Cap
The 10% Cap on Your Home's Appraised Value in Tarrant County
Once you have a homestead exemption on file, TAD can raise your home's appraised value by no more than 10% per year.
This cap protects you from large tax increases when home prices rise fast. It applies only to your homestead — not investment properties or vacant land. The cap starts the year after you first qualify for the homestead exemption.
If you buy a home that already had a homestead exemption, the cap resets when you take ownership. Your first-year appraisal may be higher than what the previous owner was paying. That is normal and expected under Texas law. Once you file your own homestead exemption, the 10% limit starts protecting you going forward. Check tad.org to confirm the exemption is on your account.
Source to confirm: Texas Comptroller – Valuing Property