Do I need Cdl to drive a 1 ton truck with a 11500 lb gvw pulling a trailer rated 14000 lb gvw for a business?

Yes, you typically need a Commercial Driver's License (CDL) to operate a combination of vehicles with a gross vehicle weight rating (GVWR) over 26,000 pounds, which includes your 1-ton truck and the 14,000 lb trailer. Since the combined weight exceeds this threshold, a CDL would be required for business purposes. Additionally, specific regulations may vary by state, so it's important to check local laws for any additional requirements or exceptions.