L.D.
I believe if she opens the account then her contributions to it are tax deductible. If she just gives you the money to put into the 529 account that you opened for them then her contributions are not tax deductible. It'll also be much easier for her to have the account in her name because she can link her bank accounts directly to it and have the money automatically deposited if she chooses. There's no way for her to do that with the account that's in your name. It all goes to your kids in the end so I would be thankful.