I recognize that this is a great problem to have, and am wondering what others have done in this scenario.
We're expecting a second child in 2016, and have been funding the first child's 529 with the Michigan maximum of $10k/year/couple to get our maximum state tax deduction since her birth 3 years ago. The MI state plan is a good one, with low fees (.17%) and ok investment options.
In 2016, should we also fund the 2nd child's 529 with a matching $10k even though it will not be state-tax-deductible? Other options are to just split the $10k to be $5k each. We already max out employer-sponsored 401k funds, and are no longer eligible for Roth IRAs because of the income limit. The only benefit I can see is that the 529 earnings will be federal-tax-free as long as they're used for education in 15-18 years.
We can't guarantee that both kids will need that much money for college, but since the scenarios are so variable (cheap college, expensive private college, expensive grad school, we ER and stop contributing, more kids, etc), we might as well contribute early while we can, right? My parents paid for my college tuition and this gave me a HUGE leg up in starting out my adult life, so I'd love to do the same for my kids if possible.
Other options for this money: paying down mortgage early, taxable investing. Thoughts?