A 529 plan is a tax-advantaged savings account for education expenses, named after Section 529 of the Internal Revenue Code. Two types exist: prepaid tuition plans (lock in today's tuition rates) and education savings plans (invest in mutual funds for tax-free growth). Earnings grow tax-deferred and withdrawals are tax-free when used for qualified education expenses — tuition, fees, books, supplies, computers, and up to $10,000/year for K-12 tuition. Most plans are state-sponsored and open to any U.S. resident.

What are the 529 plan contribution limits?

There's no annual contribution limit, but 529 plans count as gifts for tax purposes: contributions over $19,000 per donor per beneficiary in 2025 may trigger gift tax (or use the lifetime exemption). A special 5-year election lets you front-load 5 years of gifts at once ($95,000 per donor per beneficiary) without gift tax. Total plan balance limits vary by state but typically range from $235,000 to $550,000. There's no federal income tax deduction, but ~35 states offer state tax deductions or credits for contributions.

What happens to a 529 if my child doesn't go to college?

Several options: (1) Change the beneficiary to another qualifying family member (sibling, cousin, even yourself for grad school); (2) Use the funds for K-12 tuition (up to $10,000/year), grad school, or student loan repayment ($10k lifetime); (3) Withdraw the money — earnings owe income tax + 10% penalty, but principal comes out tax-free; (4) Leave the funds invested for future use (no age limit). Starting in 2024, up to $35,000 of unused 529 funds can be rolled into the beneficiary's Roth IRA (subject to Roth contribution rules).

Should I use an age-based 529 portfolio?

Age-based (target-enrollment) portfolios automatically shift from stocks to bonds as the beneficiary approaches college. They're the simplest choice and work well for most families: aggressive when the child is young (more growth potential), conservative near college (capital preservation). For example, a portfolio might be 90% stocks at age 5, 60% at age 12, and 20% at age 18. This reduces sequence-of-returns risk — a market crash right before tuition is due. If you prefer hands-on management, choose your own allocation.

How does a 529 plan affect financial aid?

529 plans owned by a parent or dependent student count as parental assets on the FAFSA, assessed at up to 5.64% (vs. 20% for student assets). This is favorable treatment. Distributions from a parent-owned 529 are not counted as student income. Grandparent-owned 529s previously hurt aid (distributions counted as student income, taxed at 50%), but starting with the 2024-25 FAFSA, grandparent distributions no longer count as student income — a major improvement. Bottom line: 529s are financial-aid-friendly.

Can I use a 529 plan for expenses other than tuition?

Yes. Qualified expenses include tuition, mandatory fees, books, supplies, equipment required for enrollment, computers, peripherals, software, internet access, and room & board (if enrolled at least half-time). Off-campus housing qualifies up to the school's room-and-board allowance. Up to $10,000/year can pay for K-12 tuition, and up to $10,000 (lifetime) can repay student loans. Transportation, insurance, sports, and extracurriculars don't qualify. Always keep receipts to substantiate withdrawals.

Which state's 529 plan should I use?

You can invest in any state's 529 plan — you don't need to use your home state's plan or the school's state plan. However, ~35 states offer state tax deductions or credits for contributions to your home state's plan. If your state offers a deduction, it often outweighs a slightly better out-of-state plan. If your state has no income tax (TX, FL, WA, NV, etc.) or no 529 deduction (CA, NJ), shop nationally for low fees and good investment options. Popular plans: Utah, New York, Nevada (Vanguard), Michigan, and Illinois.

How much should I save in a 529 plan?

A common rule: aim to save 1/3 of projected college costs through 529s, with 1/3 from current income/scholarships and 1/3 from loans. For a newborn expecting 4-year public in-state (~$28k/year in 2026, inflating at 5%), the total cost in 18 years is ~$240k; 1/3 = $80k. Saving $250/month from birth at 6% reaches ~$97k. For private school (~$60k/year), the target triples. Start early: a $200/month contribution from birth at 6% grows to ~$77k by age 18; starting at age 10 yields only ~$34k.

529 Plan Calculator

A 529 plan calculator is a free online tool that projects your college savings growth and tells you whether you're on track to cover projected tuition costs. It shows projected savings, total contributions, earnings, and funding surplus or shortfall. Free, no sign-up required.

529 Plan Details

Current Balance?Enter your current balance.

Monthly Contribution?How much you contribute monthly to retirement savings.

Annual Return?Enter your annual return.

Years to College?Enter your years to college.

College Cost Inflation

End of inputs

Your 529 Plan Projection

Projected Savings

$76,454.76

At college start

Total Contributions

$51,000.00

Over 10 years

Total Earnings

$25,454.76

49.91% of contributions

Projected Cost

$206,409.74

4-year inflated cost

Funding Gap

-$129,954.98

Shortfall

Status

Shortfall

Increase contributions

Current: $15,000.00. Monthly: $300.00. Rate: 6.00%. Years to college: 10. Inflation: 5.00%. Projected savings: $76,454.76 vs projected cost: $206,409.74 (-$129,954.98 shortfall).

Savings Balance vs Annual College Cost Over Time

Projected Savings vs Cost vs Funding Gap

Key Insights

You have a $129,954.98 shortfall — projected savings cover less than 75% of the $206,409.74 projected cost. To close the gap: increase monthly contributions, extend the saving horizon, or expect to cover the rest with scholarships, loans, or current income. Every $100/month extra over 10 years at 6% adds ~$16,000.

Your $300.00/month contribution is low relative to the $206,409.74 goal. Consider increasing to 10%–15% of income, or use windfalls (bonuses, tax refunds, gifts) to boost the balance. State tax deductions often make 529s attractive even at lower contribution levels.

Your 5.00% college cost inflation is typical — matching the long-term ~5% trend for U.S. colleges. This rate has slowed in recent years (3%–4%) but historically ran 5%–7%. Plan for the higher end; if inflation slows, you'll have a surplus.

Your 10-year horizon is moderate — enough for meaningful growth but require a balanced allocation. A 60/40 to 70/30 stock/bond mix balances growth and protection. Shift toward bonds (80/20 cash/bonds) in the final 3–5 years before college to lock in gains.

Investment earnings of $25,454.76 add 49.91% on top of your $51,000.00 contributions — a meaningful boost from tax-free growth. Longer horizons and higher returns amplify this effect; consider whether your allocation is aggressive enough for the time horizon.

Guide

How to Use This Calculator

1Enter your current 529 balance — the amount already saved.
2Set your monthly contribution. Aim for 10%–15% of income; even $200/month from birth builds significantly.
3Choose the expected annual return. Use 6% for a balanced age-based portfolio; 7%–8% for a stock-heavy allocation while the child is young.
4Set the years to college. Newborn → 18 years; current high-schooler → 1–4 years.
5Set the college cost inflation rate. 5% is the long-term U.S. average; 3%–4% reflects recent slower growth.
6Review the projected savings, total contributions, total earnings, and projected college cost in the result panel.
7Check the funding gap: a positive number means surplus; negative means shortfall. Aim for a small surplus as a buffer.
8Use the AI insights to assess funding status, contribution adequacy, cost inflation, investment horizon, and earnings impact.

Formula

How It's Calculated

Projected savings (saving phase, monthly compounding):

  B_m = B_(m-1) × (1 + r/12) + PMT

  where B = balance, r = annual rate, PMT = monthly contribution.

  Final balance after n months:

  B = P × (1 + r/12)^n + PMT × [((1 + r/12)^n − 1) / (r/12)]

  where P = current balance, n = yearsToCollege × 12.

Projected college cost (inflated):

  Cost = annualCost × (1 + inflation)^yearsToCollege × collegeYears

  Default annualCost = $28,000 (4-year public in-state, 2026).
  Default collegeYears = 4.

Funding gap:

  Gap = Projected Savings − Projected College Cost

  Positive = surplus; Negative = shortfall.

Example: $15,000 current balance, $300/month, 6% return,
10 years to college, 5% college cost inflation.
- Projected savings ≈ $75,000 (after 10 years of contributions + growth)
- Projected cost = $28,000 × 1.05^10 × 4 ≈ $182,000 (4-year public)
- Funding gap ≈ −$107,000 (shortfall)

Closing the gap: +$200/month adds ~$33,000 over 10 years at 6%.

Glossary

Key Terms

FAQ

Frequently Asked Questions

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