Why did the framers place limits on the power of congress to levy taxes?

The framers placed limits on Congress's power to levy taxes to prevent potential abuses and protect individual liberties. They aimed to balance the need for government revenue with the fear of oppressive taxation, which had been a grievance under British rule. By establishing guidelines and requiring certain procedures, such as the necessity for uniformity and proportionality, they sought to ensure that taxation would be fair and equitable, reflecting the principles of democracy and limited government.