529 College Savings Calculator & Tuition Inflation Forecaster
Project how your college savings plan will grow with regular monthly contributions, estimate future college costs, and see the monthly deposit needed to close any gap.
- Tax-Free Investment Growth—
- Est. Capital-Gains Tax Avoided (15%)—
- Annual State Income Tax Saving—
Higher Education Growth & Cost Progression Ledger
Deposits, compound growth and rising college costs, year by year.
| Child Age | Year | Annual Deposits | Cumulative Principal | Total Gains Earned | 529 Balance | 4-Yr Cost at That Year's Prices | Net Funding Gap |
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The 529 Tax Advantage: Federal Exemption, State Deductions and Roth Rollovers
529 earnings grow free of federal income tax, and withdrawals are tax-free when used for qualified education expenses such as tuition, fees, books and — for students enrolled at least half-time — room and board. More than 30 states offer a state income tax deduction or credit for contributions, usually with an annual limit.
Under SECURE 2.0, leftover funds in a 529 that has been open at least 15 years can be rolled into the beneficiary's Roth IRA — up to a $35,000 lifetime limit, subject to the annual Roth contribution limit.
College Cost Inflation: Why Tuition Outpaces Headline CPI
Over the long run, published college prices have risen faster than general consumer inflation — higher education is labor-intensive, and its costs don't fall with productivity gains the way many goods do. Increases have slowed in recent years, so treat the inflation rate as a planning assumption and revisit it.
Why starting early matters so much for college savings
Because compound growth needs time to build momentum, starting a college fund when a child is young — even with modest monthly contributions — can outperform larger contributions started later. This calculator makes that time advantage visible: try comparing a 15-year timeline against a 5-year timeline with the same monthly contribution to see the difference.
529 plans specifically offer tax-advantaged growth for education expenses in many jurisdictions, which can make the effective growth rate meaningfully better than a comparable taxable account — though specific tax treatment varies by location, so it's worth confirming the rules that apply to your plan.
By Suhaib Hassan · Formula verified 27 Sep 2026 · How CalculatePilot verifies formulas →
Adjusting your plan as college costs become clearer
Education costs vary enormously depending on the type of institution (public in-state, public out-of-state, private) and are likely to change between now and when your child enrolls. It's worth revisiting this projection periodically and adjusting your monthly contribution as you get a clearer sense of the actual target amount you're aiming for.
This calculator assumes a constant contribution and return rate for simplicity — in practice, many families increase contributions over time as income grows, which would reach the goal faster than this straight-line projection suggests.
Frequently asked questions
Are 529 plan earnings tax-free?
In the US, 529 plan growth is generally tax-free when used for qualified education expenses, though specific rules and any state tax benefits vary — check your specific plan and jurisdiction's rules for details.
What if I don't know exactly how much college will cost yet?
That's normal this far in advance — many families use a general savings target and adjust contributions over time as costs and the child's education path become clearer, rather than trying to pinpoint an exact number today.
How much will my 529 grow in 10 years?
A 529 plan with $10,000 starting balance and $250/month contributions at 6% annual return grows to approximately $59,000 after 10 years. Use this calculator to project your specific 529 growth.
What is the average 529 plan growth rate?
Most 529 plan age-based portfolios target 5-7% annual growth for long investment horizons, shifting to more conservative allocations (2-4%) as college approaches. Use your fund's historical return as your estimate.
How much should I have in a 529 by age 10?
A common benchmark is saving roughly one-third of expected college costs by the time the child is 10. For a $60,000 target, that's around $20,000 by age 10. This calculator helps you see if your current savings pace will hit your goal.
How much should I have saved in a 529 plan by age?
A common benchmark: save roughly 1/3 of expected 4-year college costs by age 10, 2/3 by age 15, and 100% by the time the child starts college. For a $80,000 4-year college goal: $27,000 by age 10, $53,000 by age 15. Use this calculator to find your required monthly savings.
What is the average 529 plan return rate?
Most age-based 529 portfolios target 5-8% annual returns for children 10+ years from college, gradually shifting to more conservative investments (2-4%) as college approaches. Historical average for a diversified stock fund is approximately 7% annually, though past performance does not guarantee future results.
How do I choose between a 529 plan calculator for different states?
You are not required to use your home state's 529 plan. Compare your state's plan (which may offer a state tax deduction) with other states' plans on fees and investment options. Use this calculator to compare projected growth across different contribution levels and return rates.
What is a 529 college savings plan?
A 529 plan is a tax-advantaged savings account specifically for education expenses. Contributions grow tax-free, and withdrawals for qualified education expenses (tuition, books, room and board) are also tax-free. Most US states offer their own 529 plan, but you can use any state's plan regardless of where you live or where your child attends college.
How much should I save per month in a 529 plan?
It depends on your target and timeline. If you expect college to cost $60,000 and have 10 years to save at a 6% return, saving the full amount takes about $366/month, while covering one-third ($20,000) takes about $122/month. Use this calculator to model your specific situation based on your child's age and your target college fund amount.
What is the average return on a 529 plan?
529 plans invested in age-based portfolios (which automatically shift from stocks to bonds as college approaches) have historically returned 5-7% annually when the child is young, declining to 2-4% as college nears. A conservative planning estimate is 5-6% average annual return over a long horizon.
How growth, contributions and college costs are projected: 529 college savings calculator guide.
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