Also compare the performances of the CO vs. WI plans. My experience with Bright Start, in Illinois, is that their funds are average at best. The WI 529 could very likely have better performing funds, plus give you a tax deduction that no other state's 529 will do for you now that you are a WI resident. So look into doing the transfer, while you are not too busy grilling brats and buying Packer wear. Go Badgers!!!