If you put more into a Roth IRA than the rules allow, the IRS charges a Roth IRA excess contribution penalty of 6% on the excess amount every year it remains in the account. You can wipe that penalty out entirely by withdrawing the excess, plus the earnings it generated, before your tax filing deadline. Miss that window and you owe the 6% for the year, but you still have ways to stop it from repeating.
How the 6% Tax Works
Under 26 U.S.C. § 4973, the excise tax equals 6% of the excess contribution amount sitting in the Roth IRA at the end of the tax year.1Office of the Law Revision Counsel. 26 USC 4973 – Tax on Excess Contributions to Certain Tax-Favored Accounts and Annuities It’s a flat calculation. A $5,000 overcontribution generates a $300 penalty. Leave it for five years and that’s $1,500 in penalties on a $5,000 mistake.
The tax doesn’t compound in the mathematical sense. Each year it’s 6% of whatever excess is still in the account, not 6% of the excess plus prior penalties. But the statute carries the unresolved excess forward year after year, so each January the meter starts again on the same money.1Office of the Law Revision Counsel. 26 USC 4973 – Tax on Excess Contributions to Certain Tax-Favored Accounts and Annuities
One built-in cap: the excise tax for any given year can’t exceed 6% of the total value of all your IRAs at year-end. In practice that ceiling only matters if your IRA balance is tiny relative to the excess.
Fix It Before the Tax Deadline and Pay No Penalty
The clean escape is a corrective distribution. Withdraw the excess contribution, along with any earnings attributable to it, before the due date of your tax return. For a 2025 excess contribution, that means April 15, 2026, or October 15, 2026 if you file an extension.2Internal Revenue Service. Publication 590-A, Contributions to Individual Retirement Arrangements A timely withdrawal eliminates the 6% penalty for that year entirely, as if the excess had never been contributed.
Two things to know about the mechanics.
First, the earnings have to come out too. Your IRA custodian typically runs the calculation using the IRS formula, which allocates a proportional share of the account’s overall gain or loss to the excess based on how the account performed while the excess was in it.3eCFR. 26 CFR 1.408-11 – Net Income Calculation for Returned or Recharacterized IRA Contributions If the account lost money on that share, you actually withdraw less than the original excess.
Second, the earnings you remove count as taxable income for the year you made the contribution. The SECURE 2.0 Act eliminated the 10% early distribution penalty that used to apply to those earnings for account holders under 59½, provided the correction is timely.2Internal Revenue Service. Publication 590-A, Contributions to Individual Retirement Arrangements Regular income tax on the earnings still applies, but the extra 10% hit no longer stacks on top.
Fix It After the Deadline
Once April 15 (or October 15 with an extension) passes, you’re going to owe the 6% for that year. There’s no undoing it. What you can still do is stop the penalty from hitting again next year, and you have three ways to get there.
Just Withdraw the Excess
You can pull the excess amount out at any time to prevent the tax from applying the following year. With a late correction, the IRS doesn’t require you to remove attributable earnings. You withdraw the excess contribution amount only, and the earnings stay in the account.2Internal Revenue Service. Publication 590-A, Contributions to Individual Retirement Arrangements You still owe the 6% for every year the excess was present, but the meter stops the year you take the money out.
Absorb It Into a Future Year’s Room
If you’re eligible to contribute in a later year, you can absorb the prior excess by contributing less than your limit that year. Say you overcontributed by $2,000 in 2025 and your 2026 limit works out to $7,500. Contribute only $5,500 in 2026 and the leftover $2,000 of room soaks up the prior excess.2Internal Revenue Service. Publication 590-A, Contributions to Individual Retirement Arrangements No withdrawal needed. You still owe the 6% for the original year and any year the excess lingered before absorption.
This works well when your income fluctuates, for instance when a one-time bonus pushed you past the phase-out but your baseline income is under it. It doesn’t help if your income consistently exceeds the Roth eligibility threshold, because the room you’d need never opens up.
Recharacterize as a Traditional IRA Contribution
Recharacterization moves the excess plus attributable earnings from the Roth IRA to a traditional IRA through a trustee-to-trustee transfer. If done by the tax filing deadline including extensions, the IRS treats the contribution as though it had originally gone into the traditional IRA.2Internal Revenue Service. Publication 590-A, Contributions to Individual Retirement Arrangements
The catch: you have to be eligible to make a traditional IRA contribution that year and not already at its limit. High earners who exceeded the Roth income phase-out can generally still recharacterize into a nondeductible traditional IRA contribution, though whether any of it is deductible depends on whether they’re covered by a workplace retirement plan and at what income level. Recharacterization is not available after the tax deadline.
Reporting on Form 5329
Form 5329 (Additional Taxes on Qualified Plans and Other Tax-Favored Accounts) is where the 6% tax gets calculated and paid. File it with your Form 1040 by the normal due date, including extensions.4Internal Revenue Service. Instructions for Form 5329 You need it any year you owe the excise tax, and also any year an excess from a prior year carries forward, even if you’ve since corrected it.5Internal Revenue Service. About Form 5329, Additional Taxes on Qualified Plans (Including IRAs) and Other Tax-Favored Accounts
Even if you corrected the excess in time and owe nothing, filing Form 5329 with a zero balance is worth doing. A filed return starts the statute of limitations. Skip the form and that clock may never start, or it may extend to six years rather than the usual three, leaving you exposed to an assessment long after you thought the matter was closed.4Internal Revenue Service. Instructions for Form 5329
Why the Overcontribution Happened, and How to Avoid the Next One
Excess contributions almost always trace back to one of a few situations. Knowing which one applies to you tells you whether it’s likely to happen again.
- Your income rose during the year. You contributed early based on last year’s numbers, then a bonus, freelance income, or capital gain pushed your Modified Adjusted Gross Income past the Roth phase-out range.
- You contributed to both a traditional and a Roth IRA. The annual dollar limit applies to the two accounts combined, not each one separately.6Internal Revenue Service. Retirement Topics – IRA Contribution Limits
- Your earned income was lower than the dollar cap. Time off work, school, or a light employment year can leave your taxable compensation below the general contribution limit, and contributing up to the limit creates an excess equal to the shortfall.
- Automatic contributions kept running after your situation changed. Recurring bank transfers don’t know that your income moved into the phase-out range.
The simplest preventive move is waiting until late in the year, or into the following spring, before making your full contribution, once your final income picture is clear. Contributions for a given tax year can be made up until April 15 of the following year, so there’s no need to fund the account early. If you prefer contributing throughout the year, leave some room and top off once your numbers are firm.