Prohibits the taxation of unrealized gains

This bill prohibits state taxation of unrealized gains, meaning it would prevent taxes on increases in the value of assets (like stocks or property) before those assets are sold. It directly affects taxpayers who hold appreciating assets but haven't yet converted them to cash. The bill establishes a clear rule that unrealized gains cannot be subject to state tax, without specifying implementation details or exceptions. As a procedural measure, it focuses on defining a tax boundary rather than creating new programs or altering existing tax structures.