Here is some very helpful information of changes that were made regarding land used for agricultural purpose.
HB 1743 was passed and amends sections 23.55 and 23.76 of the Tax Code regarding the appraisal methods and procedures in Texas. Specific changes made to the Tax Code are in regards to rollback taxes for agricultural land. Land that is converted from agricultural use to non-agricultural use will still incur a rollback tax. However, starting September 1, 2019 the number of years for a rollback tax bill for changing to a non-agricultural use will be reduced from five years to three years and the interest rate imposed on a rollback tax bill is also reduced from 7% to 5%.
Source: Dr. Blake Bennett, Associate Professor and Extension Economist, Texas A&M AgriLife Extension Service