How Much Should You Save for College by Age? Realistic Targets for Parents

Last editorial review: September 3, 2026

U.S. scope: This article discusses United States institutions, product conventions, and dollar examples unless stated otherwise. Rules can vary by state and provider and may change. The UK box below is a comparison, not UK-specific advice.

Quick answer

One planning anchor is to pre-save about one-third of the expected cost, but it is not a promise that income or aid will cover the rest. The College Board reports a 2025–26 average total budget of $30,990 per year for an in-state public four-year college. Four years equals $123,960 in today's dollars; one-third is $41,320. In the illustration below, increasing that target by an assumed 5% annual college-cost rate produces a future target near $99,442, requiring about $257 per month from birth if savings earn an assumed 6%. These are hypothetical planning inputs—not a forecast or recommendation. Costs, aid, and investment returns can differ substantially, and investments can lose value.

This page is educational, not financial or tax advice. All numeric examples are illustrative, use explicit assumptions, and are not forecasts. Consult a qualified advisor about your personal situation.

Who this is for

• Parents and caregivers who want a clear dollar target and a monthly plan.
• Families starting early or late who want a shame‑free, practical approach.
• Readers who prefer a repeatable method (pick a net‑cost estimate, a time horizon, and an assumed growth rate).

Current-cost context from College Board

The College Board's 2025 Trends in College Pricing highlights report the following 2025–26 national averages. Published tuition and fees exclude housing and food; total budgets include the broader cost-of-attendance categories used in the report. Neither column predicts one family's net price.

Use these dated figures as context only. A school's net-price calculator is more useful for household planning because grants and scholarships can make net price very different from sticker price.

The one‑third rule: a practical anchor

A useful rule of thumb divides the four-year bill into three parts:

• Save roughly one‑third ahead of time (your education fund).
• Pay roughly one‑third from income and savings during the college years.
• Plan for the remaining third to come from some combination of grants, scholarships, student contribution, or borrowing, while recognizing that none is guaranteed.

This is not a law or a prediction. Families that want to limit borrowing may set a higher target. A community-college transfer path or an in-state option may support a lower target. Aid is uncertain, so the split should be stress-tested rather than treated as an entitlement.

A reusable method, step by step

1. Choose a current net‑cost estimate (per year) for the path you expect (in‑state public is a common planning default).
2. Multiply by the number of years (usually four) to get a current four‑year baseline.
3. Choose what share you want to fund ahead of time (one‑third is a reasonable anchor). That gives you a dollar goal today.
4. Pick how many years remain and state separate assumptions for college-cost growth and investment return. The example below uses 5% annual cost growth and a 6% nominal investment return. Neither is guaranteed.
5. Convert the dollar goal and horizon into a monthly contribution using a calculator or spreadsheet (you don’t have to compute the annuity formula by hand). Automate the contribution and review the plan yearly.

The monthly calculation in plain English

Start with today's dollar target, apply the assumed college-cost rate for the years remaining, then calculate the monthly deposit required to reach that future target at the assumed investment return. A spreadsheet can perform both steps. Recalculate annually with updated net-price information rather than relying on one projection for 18 years.

Worked example: one-third of an in-state public budget

Assumptions for this illustration:

• Current four-year budget: $30,990 × 4 = $123,960, using the College Board's 2025–26 in-state public average.
• Share to pre-save: one-third, or $41,320 in today's dollars.
• College-cost growth: 5% a year for 18 years, producing a future target of about $99,442.
• Investment return: 6% nominal, compounded monthly; contributions arrive at month end.
• Taxes, fees, and account limits are excluded. Markets can lose value, so actual results may be materially lower.

Illustrative monthly contributions

The later-start rows hold the $99,442 future target constant. They demonstrate why shortening the savings window raises the required monthly deposit. A real family would update both the target and assumptions before using the result.

Age-based checkpoints for the illustration

If a family contributes about $257 monthly from birth and earns the hypothetical 6% return, the modeled path is:

This is illustrative math, not an expected result. It excludes fees and taxes and assumes the same return every month, which markets do not deliver.

What fixed monthly amounts could build

The next table uses a hypothetical 6% nominal return, monthly compounding, month-end deposits, no taxes or fees, and no withdrawals.

Different returns, fees, taxes, and market sequences will change the result. Use the table to understand scale, then model your own target conservatively.

How the assumptions change the answer

College-cost growth and investment returns do not move in a straight line. If college costs rise more slowly than the example assumes, the future target falls. If an investment portfolio earns less than 6%, the same monthly deposit produces a smaller balance. A lower-risk allocation near enrollment may also have a lower expected return than a long-horizon portfolio.

Run at least three scenarios: a cautious case with higher cost growth and lower investment returns, a middle case, and a favorable case. Build the monthly habit around a figure your budget can sustain, then update it annually using a current net-price estimate. This is more useful than treating one rate as a forecast.

If you are starting later

Starting at 13, 15, or later is common and workable. Practical levers:

• At the same illustrative 6% return, $500 per month for five years from age 13 to 18 would build about $34,885 before taxes and fees. That may not meet the example target, but it is still meaningful progress.
• Recompute the monthly need for the shortened horizon; expect higher monthly contributions.
• Use cost levers: begin with two years at community college then transfer, choose in‑state public options, maximize AP/IB/dual‑enrollment credit, and pursue merit scholarships. Each dollar you reduce from the bill shrinks the monthly pressure.
• Combine family contributions with a reasonable student contribution (part‑time work) and targeted gifts from relatives.
• As enrollment nears, shift some balance into shorter‑term, lower‑volatility vehicles to reduce sequencing risk.
• Do not sacrifice essential retirement savings to chase a college goal in typical cases—retirement is usually harder to recover than education costs.