How to Calculate College Savings

What is College Savings?

A 529 college savings plan grows tax-free and can be withdrawn tax-free for qualified education expenses. Starting early dramatically reduces the monthly contribution needed to fund four years of college.

Formula

FV = PMT × [((1 + r)^n − 1) / r] for regular contributions, or FV = P(1+r)^n for lump sum

FV: Future Value ($)
PMT: Annual Contribution ($/year)
r: Annual Return (%)

Step-by-Step Guide

1Future Value = PV × (1+r)^n + PMT × ((1+r)^n − 1) ÷ r
2Monthly contribution needed = Gap × r ÷ ((1+r)^n − 1)
3College costs have historically inflated at ~5% annually
4Investment returns in a 529 typically average 5–8% over 18 years

Worked Examples

Input

$30,000/year college, child age 5, invest $300/month at 6%

Result

Projected: ~$90,000 after 13 years — covers roughly 75% of cost

Frequently Asked Questions

What is the best account for college savings?

In the US, 529 plans offer tax-free growth and withdrawals for education. In the UK, Child ISAs and Junior ISAs offer tax advantages. Compare tax benefits of your region.

How much should I save for college?

Current US average in-state public university costs ≈$26,000/year. Starting early with modest contributions leverages compound growth over 18 years.

What if I oversave in a 529 plan?

Excess funds can be transferred to family members, used for K-12 tuition, or rolled into a Roth IRA (recent rules). Some funds may trigger taxes and penalties if used for non-education.

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