"Does it make sense to have 529s in two different states - and is it allowed?" asks a Kiplinger reader. "It's generally best to invest in your own state's 529 plan if you can get an income-tax deduction for your contributions. But after you've maxed out your own state's tax benefits, you may choose to invest in another state's plan, too, if it has lower fees, better investing choices or another benefit that your state's plan doesn't offer. And for people whose states don't offer an income-tax deduction for 529 contributions, we generally recommend considering one of Kiplinger's favorite plans -- no matter in what state they live."