Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Do I need to start a 529 plan for each child (2 separate plans), or can I just open one 529 plan and let both children use it?
MrChrister makes some good points, but I saw his invitation to offer a counter opinion. First, there is a normal annual deposit limit of $13,000 per parent or donee. This is the gift limit, due to rise to $14,000 in 2013.  If your goal is strictly to fund college, and this limit isn't an issue for you, the one account may be fine unless both kids are in school at the same time. In that case, you're going to need to change beneficiaries every year to assign withdrawals properly.  But, as you mention, there's gift money that your considering depositing to the account. In this case, there's really a legal issue. The normal 529 allows changes in beneficiary, and gifts to your child need to be held for that child in an irrevocable arrangement such as a UTMA account. There is a 529 flavor that provides for no change of beneficiary, a UTMA 529. Clearly, in that case, you need separate accounts.  In conclusion, I think the single account creates more issues than it potentially solves. If the true gift money from others is minimal, maybe you should just keep it in a regular account. Edit - on further reflection, I strongly suggest you keep the relatives' gifts in a separate account, and when the kids are old enough to have legitimate earned income, use this money to open and deposit to Roth IRAs. They can deposit the lesser of their earned income or $5000 in 2012, $5500 in 2013.  This serves two goals - avoiding the risk of gift money being 'stolen' from one child for benefit of the other, and putting it into an account that can help your children long term, but not impact college aid as would a simple savings or brokerage account.