529 College Savings Plan Calculator
Project your 529 plan growth and estimate how much to save monthly for college education costs.
A 529 plan is a tax-advantaged savings plan designed to help families save for future education expenses. Named after Section 529 of the Internal Revenue Code in the United States, these plans offer significant tax benefits that can substantially boost your education savings over time.
How the calculation works: This calculator uses the compound interest formula to project your 529 plan balance at the time your child starts college:
Future Value = PMT × [((1 + r)^n - 1) / r] + PV × (1 + r)^n
Where PMT is the monthly contribution, r is the monthly rate of return, n is the total number of months, and PV is the current balance or initial investment.
Tax advantages of 529 plans:
- Contributions grow tax-free at the federal level
- Withdrawals for qualified education expenses are tax-free
- Many states offer tax deductions or credits for contributions
- No income limits for contributors
- High contribution limits (typically $300,000-$500,000 per beneficiary)
Average college costs (annual, United States):
- Public university (in-state): $10,000-$12,000 tuition and fees
- Public university (out-of-state): $22,000-$28,000 tuition and fees
- Private university: $38,000-$55,000 tuition and fees
- Room and board: Additional $10,000-$15,000 per year
Education cost inflation: College costs have historically increased at approximately 5-6% per year, significantly faster than general inflation. This means a college education that costs $100,000 today could cost over $160,000 in ten years.
Investment return assumptions: 529 plans typically offer a range of investment options from conservative (bonds) to aggressive (stocks). Historical average returns vary by allocation, but a balanced portfolio has historically returned approximately 6-8% annually before fees.
Starting early matters enormously: The power of compound growth means that even small contributions started early can grow substantially. Contributing $200 per month starting at birth, with 7% annual returns, could grow to approximately $86,000 by age 18 — of which only $43,200 would be your contributions. The rest is investment growth.
Qualified expenses: Tuition, fees, books, supplies, equipment, room and board, computers, and internet access required for enrollment. Since 2019, up to $10,000 per year can also be used for K-12 tuition.