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529 College Savings Calculator 2025

Last verified: May 2026

Calculate how much you need to save in a 529 plan for college. See projected costs with inflation, tax-free growth, and monthly contribution targets.

Historical college inflation: ~4 to 6% per year

$108,147 Gap to Fill

$96,605

Projected savings in 13 years

Total College Cost

$204,751

Cost Per Year

$51,188

% Covered

47%

Monthly Needed

$710/mo

529 Savings Growth

Savings Breakdown

Starting Balance10%
Your Contributions48%
Tax-Free Growth41%

529 Tax Benefits

✓Tax-free growth — no tax on earnings

✓Tax-free withdrawals for qualified expenses

✓37+ states offer state tax deductions

✓Estimated state tax savings: ~$180/yr

✓Gift tax exclusion up to $19,000/yr (2025)

✓Superfunding: 5 years at once ($95,000)

2025-26 Average Annual College Costs

Public In-State
$27,146/yr$108,584 total (4yr)
Public Out-of-State
$45,708/yr$182,832 total (4yr)
Private University
$60,420/yr$241,680 total (4yr)
Community College
$10,200/yr$40,800 total (4yr)

Source: College Board Trends in College Pricing. Includes tuition, fees, room and board.

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What is 529 College Savings Plan?

A 529 plan is a tax-advantaged savings account specifically designed for education expenses. Contributions grow tax-free, and withdrawals for qualified education expenses are completely tax-free at the federal level.

Over 37 states also offer state income tax deductions or credits for 529 contributions, making them one of the most powerful college savings vehicles available.

College costs have historically risen at 4-6% annually - faster than general inflation - making early and consistent saving critical.

The Formula — How to Calculate 529 College Savings Plan

Future Savings = P x (1+r)^n + C x ((1+r)^n - 1)/r Future College Cost = Current Cost x (1+inflation)^n

P = Current 529 balance

C = Annual contribution

r = Expected annual investment return

n = Years until college enrollment

Frequently Asked Questions

Sources & References

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This tool is for educational purposes only and does not constitute financial, tax, or investment advice. Consult a qualified financial professional for advice specific to your situation.

Analysis & insights

Your total contrib is $56,800, based on the inputs above. Investment projections are sensitive to assumed rate + horizon. Re-run with conservative assumptions to stress-test.

Calculation summary

Result derived from 5 inputs. Adjust any one to test sensitivity.

Risk & benchmark gauge

Current band

Moderate

Total Contrib: $56,800

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LowModerateStrongMaximum

Industry benchmarks

  • Projected Savings$96,605
  • Total Contrib$56,800
  • Growth From Investing$39,805
  • Future Cost Per Year$51,188
  • Total Future Cost$204,751
  • Gap$108,147

Key insights

Time + rate compound

In long-horizon money math, small changes in rate or time produce outsized changes in the final number. Try ±1% on the rate to see sensitivity.

Sensitivity testing

Adjust each input by ±10% to find the most impactful variable — that's the one to focus your real-world decisions on.

Recommended actions(4)

Test the realistic range of each input

High priority

Try the lowest and highest realistic value for each input. The spread of results is the range you should actually plan for — point estimates lie.

Impact: Reveals which inputs matter most and where uncertainty hides.

Compare against published benchmarks

Medium priority

Whatever you're calculating, there's likely an industry benchmark for it. Google "[topic] average" or "[topic] median" to sanity-check the result.

Save or download a copy

Medium priority

For calculators that offer it, use "Download report (PDF)" to keep a snapshot. Otherwise screenshot the inputs + result before navigating away.