What are the Constitutional pvisions on levy and collection of tax?

The U.S. Constitution grants Congress the power to levy and collect taxes under Article I, Section 8. It mandates that all direct taxes must be apportioned among the states based on population, while indirect taxes must be uniform across the states. Additionally, the Sixteenth Amendment allows Congress to impose income taxes without apportionment. These provisions establish the framework for federal taxation while ensuring certain limitations and requirements are met.