Recently approved changes to the Tarrant Appraisal District’s reappraisal plan could cost taxpayers more in the long run, according to an Austin-based taxation research group.

The Texas Taxpayers and Research Association, which explores the tax and fiscal impacts of proposed legislation, published a report detailing the ways in which Tarrant’s actions could violate state law.

School property taxes provide the biggest line item on the Texas taxpayers’ bill, so it’s understandable why some GOP politicians and property taxpayers want to have something that is more affordable to family budgets.

Texas would have to spend tens of billions of dollars to get rid of the state’s property taxes, state budget officials said Wednesday — a reality check on some conservatives who want to end them once and for all.

The state uses that money for schools, infrastructure, and other projects. To replace the property taxes, the Texas Taxpayers and Researchers Association said the state’s sales tax figure would have to more than double by more than 20%.