Proposing a constitutional amendment prohibiting the enactment of a law imposing an occupation tax on certain entities that enter into transactions conveying securities or imposing a tax on certain securities transactions.

HJR 4 proposes a constitutional amendment that would prohibit Texas from imposing an occupation tax on financial firms regulated by federal agencies (like stock exchanges, brokers, and clearinghouses) or taxing their securities transactions. It directly affects entities such as stock exchanges, broker-dealers, and other registered securities market operators. The amendment explicitly allows existing taxes like sales taxes, insurance premiums, and general business taxes but blocks new state taxes targeting securities transactions or these specific firms. This is a constitutional change, not a regular law, requiring voter approval after legislative passage.