529 College Savings Calculator
Project your 529 plan balance at college enrollment, estimate how much to save monthly, and see how much 2026 tuition your contributions will cover. Free US 529 calculator.
Annual Take Home
—
Monthly Income
—
Effective Tax Rate
—
State Tax
—
Calculator
Key Takeaways
What You Should Know
- Annual take-home updates live as you change inputs
- Monthly income reflects your pay frequency
- Tax rate includes federal, FICA, and state withholding
- All calculations run privately in your browser
Visual Breakdown
Charts & Projections
Tax Breakdown
How your gross pay splits across taxes and net income.
State Comparison
Take-home pay across selected states at the same salary.
Lifetime Wealth Projection
Illustrative growth of invested take-home pay over time.
In This Guide
Overview
529 Plan vs Other College Savings Options
529 plans offer the best tax treatment for college savings: contributions grow tax-free, and qualified withdrawals are completely untaxed. The 2026 Roth IRA rollover provision (SECURE 2.0) also eliminated most of the overfunding risk that made parents hesitate. However, 529s aren’t the only tool.
529 vs Roth IRA for College
Roth IRA earnings can be withdrawn penalty-free for qualified education expenses, and contributions (not earnings) can always be withdrawn tax-free for any reason. The downside: Roth IRA assets count as parental assets on the FAFSA and can slightly reduce financial aid eligibility. The 529 advantage: potentially higher contribution limits, state tax deductions, and sole-purpose structure keeps the money dedicated. Most financial planners recommend: max 529 to capture state tax deductions, then Roth IRA for dual-purpose flexibility.
Starting Later? Still Worth It
Starting a 529 at age 10 with $400/month instead of at birth isn’t ideal, but $400/month for 8 years at 7% grows to about $54,000 — meaningful. States also allow lump-sum deposits. A $30,000 lump sum at age 10 grows to roughly $52,000 by age 18 at 7%. Even partial funding is better than none.
Pair this with our Compound Interest Calculator to model any contribution scenario with custom timelines.
Questions
Frequently Asked Questions
Methodology
Sources & Methodology
Rates and limits reflect 2026 IRS publications, SSA wage bases, and official federal guidance. Calculators use progressive federal brackets and standard deductions unless noted.