The single biggest lever in college savings isn't how much you contribute — it's how long the money has to compound. A family that starts at birth can reach the same goal with half the monthly outlay of one that waits until middle school.
A 529 plan is a tax-advantaged account for education savings. Contributions grow tax-deferred, and withdrawals are tax-free when used for qualified education expenses — tuition, room and board, books, and now up to $10,000 of K-12 tuition. Many states also offer a deduction or credit on contributions.
The math of compounding is what makes early start so powerful. At a 7% average return, money roughly doubles every decade. A family contributing $200 a month from birth accumulates more than one contributing $400 a month starting at age ten — because the early contributions get two extra doubling cycles before college bills arrive.
If your child doesn't go to college, the money isn't trapped. You can change the beneficiary to another family member, hold it for graduate school later, or — under recent rules — roll a portion into the beneficiary's Roth IRA. The flexibility removes most of the 'what if' anxiety. The real risk isn't overfunding; it's waiting too long to start.