The 529 plan, from the student's side: how to spend it without a tax bill

A 529 is a tax-advantaged college savings account: money goes in after tax, grows tax-free, and comes out tax-free as long as it pays for qualified education expenses. Most articles about 529s are written for the parents who fund them. But once you're in college, you're often the one deciding what the account pays for — and the tax-free promise only holds if the withdrawals match qualified expenses in the same year. Spend it right and it's the best deal in college finance; spend it carelessly and you can accidentally trigger taxes and a penalty on money your family worked years to save.

What counts as a qualified expense

The room-and-board rule that trips people up

Room and board is qualified, but only up to the college's official cost-of-attendance allowance for housing and food, and only if you're enrolled at least half-time. Live off campus in a pricey apartment and the 529 can cover housing only up to the school's published allowance, not your actual rent if it's higher. This matters most for students who assume the whole rent check is fair game — the qualified amount is capped at the school's number, which you can find in the cost-of-attendance breakdown.

What happens to leftover money

• Change the beneficiary: unused 529 funds can be moved to another eligible family member — a sibling, or even yourself later for grad school — with no tax hit.
• Pay down student loans: current rules allow a limited lifetime amount of 529 money to go toward the beneficiary's (and a sibling's) student loans.
• Roll to a Roth IRA: under newer rules, leftover 529 funds can, subject to limits and conditions, be rolled into the beneficiary's Roth IRA — check the current rules and lifetime cap.
• Take a non-qualified withdrawal: the last resort — you get the money, but the earnings portion is taxed and generally hit with a 10% penalty.

The bottom line

A 529 is tax-free money for college as long as the withdrawals match qualified expenses in the same year: tuition, fees, required books and computers, and room and board up to the school's allowance. The mistakes that cost money are spending it on non-qualified things (taxes plus a penalty on earnings), overshooting the room-and-board cap, and double-dipping against a tuition tax credit. Leftovers have good exits — new beneficiary, limited loan payments, or a Roth rollover. The rules and dollar limits change; a CPA or tax advisor is the authority for your family's situation, and this is general education, not individualized tax advice.