From a part 121 perspective you can't takeoff knowing you'll arrive at your destination overweight:

Sec. 121.195: No person operating a turbine engine powered airplane may take off that airplane at such a weight that (allowing for normal consumption of fuel and oil in flight to the destination or alternate airport) the weight of the airplane on arrival would exceed the landing weight set forth in the Airplane Flight Manual for the elevation of the destination or alternate airport and the ambient temperature anticipated at the time of landing.

This scenario happened at one of my now defunct airlines. The aircraft was over fueled for a destination to South Ameriica and couldn't be de-fueled. The crew was planning to depart and request holding at the destination until they burned off the right amount. The Chief Pilot got involved and had dispatch file a convoluted route that added time to burn off the extra gas.