Coverdell ESA Growth Calculator (Contribution Limit & MAGI Phase-Out)

A Coverdell Education Savings Account is the 529 plan's smaller, stricter sibling. Both accounts let investment growth and qualified withdrawals come out federal-tax-free, but a Coverdell adds two constraints a 529 doesn't have: a hard $2,000-per-year-per-beneficiary contribution ceiling, and a Modified Adjusted Gross Income phase-out that can reduce or eliminate a contributor's ability to contribute at all. Both limits are fixed directly in the Internal Revenue Code rather than being inflation-adjusted, so they haven't moved since the account was created and generally won't.

In exchange for those limits, a Coverdell has always allowed K-12 qualified expenses (tuition, books, tutoring, uniforms, even computer equipment) alongside post-secondary costs, a flexibility that 529 plans only gained in a more limited form as of 2026. For a family that wants tax-free growth specifically to cover private K-12 tuition over many years, and who can work within the $2,000 annual ceiling, a Coverdell can still make sense as a complement to a 529, not a replacement for it.

This calculator is built to enforce the Coverdell's actual constraints rather than just project unlimited growth on whatever contribution you request. If your requested contribution exceeds $2,000/year, or if your MAGI phases you out partially or completely, the projection reflects your real allowed contribution, not your wish list.

Three things happen in sequence.

First, the MAGI phase-out. The $2,000 base contribution limit phases out linearly between $95,000 and $110,000 of contributor MAGI for single filers and heads of household, or between $190,000 and $220,000 for married couples filing jointly. Below the floor, you get the full $2,000. At or above the ceiling, you get $0. In between, the platform's shared phase-out primitive (engine/primitives/brackets.ts) computes the exact proportional reduction: at $100,000 MAGI (single), that's $2,000 x (110,000 - 100,000) / 15,000 = $1,333.33.

Second, the contribution cap. Whatever you requested monthly, annualized, gets capped at whichever is lower: the flat $2,000 statutory ceiling, or your MAGI-reduced limit from step one. In the Quick Answer example, a $200/month request annualizes to $2,400, which exceeds even the full $2,000 limit before the phase-out is applied, so the effective contribution here is governed entirely by the $1,333.33 phase-out-reduced number.

Third, the growth projection. Your allowed annual contribution, divided into monthly deposits, compounds against your starting balance using the same TVM future-value solver the 529 calculator uses, chained year by year across your savings horizon.

Same inputs as the Quick Answer, projected over just 2 years so every step is easy to check by hand: $3,000 starting balance, $200/month requested, 6% assumed annual return, $100,000 contributor MAGI, single filer.

Phase-out check. $100,000 sits between the $95,000 floor and $110,000 ceiling, so the allowed limit is reduced proportionally: $2,000 x (110,000 - 100,000) / (110,000 - 95,000) = $2,000 x 0.6667 = $1,333.33/year, or $111.11/month.

Requested vs. allowed. The requested $200/month ($2,400/year) is well above the $1,333.33 allowed limit, so the projection uses $1,333.33/year, not $2,400.

Year 1: $3,000 starting balance plus twelve monthly contributions of $111.11 compound monthly at 6% / 12 = 0.5%, landing at $4,555.65.

Year 2: That $4,555.65 becomes the new starting balance, compounding with another $1,333.33 of contributions to reach $6,207.25.

Totals: Over 2 years, $2,666.66 was actually contributed ($1,333.33 x 2), and the account grew to $6,207.25, meaning $540.59 came from tax-free investment growth, on top of the $3,000 starting balance and $2,666.66 in contributions.

• Single, Head of Household, or Qualifying Surviving Spouse: Full $2,000 limit below $95,000 MAGI. Phases out linearly between $95,000 and $110,000. No contribution allowed at $110,000 or above.
• Married Filing Jointly: Full $2,000 limit below $190,000 combined MAGI. Phases out linearly between $190,000 and $220,000. No contribution allowed at $220,000 or above.
• These ranges apply per contributor, not per account. Multiple people (parents, grandparents, family friends) can each contribute to the same beneficiary's Coverdell ESA, but the combined total across all contributors and all accounts for that beneficiary still cannot exceed $2,000/year. It's the contributor's own MAGI that determines whether that specific person is eligible to contribute at all.

• Multiple contributors to one beneficiary. If several people want to contribute to the same child's Coverdell ESA, they must coordinate so the combined total doesn't exceed $2,000/year; this calculator models a single contributor's projection, not a multi-contributor coordination problem.
• The age-18 contribution cutoff and age-30 distribution deadline. Contributions generally cannot be made after the beneficiary turns 18 (except for special-needs beneficiaries), and funds generally must be used by age 30 or rolled to another family member's Coverdell, or the earnings become taxable plus a 10% penalty. This calculator doesn't enforce those age boundaries against your chosen horizon.
• Investment fees. Like the 529 calculator, this tool assumes your entered return rate is net of any account or fund fees, which in practice reduce real-world returns.
• State tax treatment. Coverdell contributions are not federally deductible and most states don't offer a state deduction either, unlike many 529 plans; this calculator only models the federal tax-free growth benefit.
• Coordination with the American Opportunity or Lifetime Learning Tax Credits. The same education expenses cannot be double-counted for a tax-free Coverdell withdrawal and a federal education tax credit; this calculator doesn't model that coordination.

• Assuming the $2,000 limit is per account, not per beneficiary. Opening three separate Coverdell accounts for the same child does not triple the contribution room; the $2,000 ceiling applies across all accounts combined for that beneficiary.
• Missing that the phase-out is based on the contributor's MAGI, not the beneficiary's or the account owner's. A grandparent contributing to a grandchild's Coverdell is subject to the grandparent's own MAGI, which may be well below or above the child's parents' MAGI.
• Forgetting the age-18 contribution cutoff. Unlike a 529, which accepts contributions at any age, a Coverdell generally cannot receive new contributions after the beneficiary turns 18, making it a poor fit for late-starting savers.
• Not comparing against a 529 first. Because the $2,000 annual ceiling is so much lower than what most families can realistically save for college, a Coverdell is usually best used as a K-12-focused supplement to a 529, not a family's primary college savings vehicle.

• Internal Revenue Code Sec. 530, "Coverdell Education Savings Accounts."
• IRS Publication 970, "Tax Benefits for Education," Chapter 6 (Coverdell ESA rules and MAGI phase-out worksheet).
• $2,000 annual contribution limit: IRC Sec. 530(b)(1)(A)(iii) (fixed by statute, not inflation-indexed).
• MAGI phase-out ranges ($95,000-$110,000 single; $190,000-$220,000 married filing jointly): IRC Sec. 530(c) (fixed by statute, not inflation-indexed).