529 college savings calculator

To fully fund four years at a public in-state college for a newborn, save about $688 a month in a 529, assuming 6% returns and 4% annual cost growth from today’s $30,990 average yearly budget (College Board 2025–26). Enter your child’s age, school type and savings to get your number.

  • College Board 2025–26 costs
  • Public, out-of-state, private
  • Monthly amount to close the gap
  • Shareable plan

Your details

Many families aim for a third to a half and cover the rest from income, aid and loans.

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› Growth assumptions
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Save this much each month

$857/month

to reach $219,120 by age 18 ($607 more than you save now)

College savings plan
1Projected cost of 4 years (starting in 13 years)$219,120
2Your goal (100% of cost)$219,120
3Projected savings at current pace$76,280
4Shortfall$142,840
$0k$55k$110k$164k$219k5811141718
Projected 529 balance Goal

Year-one cost when your child starts: $51,601. 529 growth is tax-free when spent on qualified education, and many states give a deduction for contributions.

Assumptions behind this estimate (3)
  • Starting costs are College Board 2025–26 averages: $30,990 total budget for public in-state and $65,470 for private nonprofit (tuition, fees, housing and food).
  • Published prices; most students pay less after grants. Contributions are assumed monthly with steady returns.
  • Money is assumed to stay invested until college starts; withdrawals during college are not modeled.

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How much to save per month by child’s age?

Child’s age todayProjected 4-year costMonthly to cover half
Newborn$266,593$344
5 years$219,120$465
10 years$180,101$733
14 years$153,951$1,423

Public four-year in-state total budget of $30,990 in 2025–26, growing 4% a year; 6% investment return; starting from $0.

Why save in a 529 instead of a regular account?

  • Tax-free growth when spent on qualified education.
  • State tax breaks for contributions in most states.
  • Favorable financial aid treatment: a parent-owned 529 counts at up to 5.64% of its value in the aid formula, versus 20% for money in the student’s name.
  • Flexibility: change beneficiaries, pay K-12 costs, or roll leftovers into a Roth IRA after 15 years.

Should I save for college or retirement first?

Retirement usually comes first: students can borrow for college, but nobody lends for retirement. A common order is to capture your full 401(k) employer match, build an emergency fund, then split extra savings between retirement and a 529.

Frequently asked questions

How much does college cost in 2025–26?

College Board’s average published total budget (tuition, fees, housing and food) is $30,990 a year at a public four-year college for in-state students and $65,470 at a private nonprofit four-year college. Average tuition and fees alone are $11,950 and $45,000.

How much should I put in a 529 each month?

To cover the full cost of four years at a public in-state college for a newborn, assuming 4% cost growth and 6% returns, you’d need to save about $688 a month. Covering half is about $344. Starting later raises the monthly amount sharply.

What can 529 money be used for?

Qualified higher-education expenses — tuition, fees, books, required equipment, and room and board for students enrolled at least half-time — plus up to $20,000 a year of K-12 expenses (raised from $10,000 starting in 2026) and up to $10,000 lifetime toward student loans. Earnings on non-qualified withdrawals are taxed plus a 10% penalty.

What if my child doesn’t go to college?

You can change the beneficiary to another family member, keep the money for later, or — if the account has been open at least 15 years — roll up to $35,000 over a lifetime into the beneficiary’s Roth IRA, subject to annual IRA limits.

Do I get a tax deduction for 529 contributions?

Not federally. More than 30 states give a state income tax deduction or credit for contributions, usually only to the home-state plan. Growth is tax-free federally when used for qualified expenses.

Sources

Estimates for planning, not financial, tax or legal advice. CalciTools calculators use published government figures and the assumptions shown on each page. Your actual numbers depend on details we don’t model. Check important decisions with a qualified professional.