Saving for college is a math problem with a moving target: costs may rise each year, while savings can grow through investment returns. Families can make the problem less overwhelming by estimating a future cost, choosing a savings goal, and breaking it into monthly contributions. The earlier saving begins, the more time compound growth has to help.
Clear numbers also make conversations about schools, scholarships, financial aid, and borrowing more realistic.
Key Facts
- Future college cost: Future Cost = Current Cost x (1 + inflation rate)^years
- Compound growth: Future Value = Present Value x (1 + r)^t
- Monthly saving future value: FV = P x [((1 + i)^n - 1) / i], where P is the monthly deposit
- Monthly rate from annual return: i = annual rate / 12, using decimal form
- Savings gap: Gap = Future College Cost - Future Value of Current Savings - Expected Scholarships - Expected Aid
- A 529 plan can grow tax-free when withdrawals are used for qualified education expenses.
Vocabulary
- 529 plan
- A 529 plan is a tax-advantaged investment account designed to help families save for qualified education costs.
- Tuition inflation
- Tuition inflation is the yearly percentage increase in college costs such as tuition, fees, housing, and meals.
- Compound interest
- Compound interest is growth earned on both the original money and the growth already added to the account.
- Expected Family Contribution
- Expected Family Contribution is an older financial aid term for the amount a formula estimated a family could pay for college.
- Net price
- Net price is the actual college cost after subtracting grants, scholarships, and other aid that does not need to be repaid.
Common Mistakes to Avoid
- Using today's tuition as the final target is wrong because college costs often rise each year. Always project the cost to the year the student will enroll.
- Treating the investment return as guaranteed is wrong because 529 plan balances can rise and fall with the market. Use conservative estimates and update the plan regularly.
- Ignoring financial aid rules is wrong because savings can affect need-based aid calculations differently depending on who owns the account. Check how parent-owned, student-owned, and grandparent-owned accounts are treated.
- Counting scholarships before they are earned is wrong because scholarship awards are uncertain and often competitive. Include scholarships as a possible reduction, not as a guaranteed part of the plan.
Practice Questions
- 1 A college costs $28,000 per year today and tuition inflation is 4% per year. Estimate the yearly cost in 8 years using Future Cost = Current Cost x (1 + inflation rate)^years.
- 2 A family saves $250 per month for 10 years in a 529 plan earning an average annual return of 5%, compounded monthly. Using i = 0.05 / 12 and n = 120, estimate the future value with FV = P x [((1 + i)^n - 1) / i].
- 3 A student is deciding between a school with a higher sticker price and more scholarship aid and a school with a lower sticker price and less aid. Explain why comparing net price is more useful than comparing tuition alone.