The IRA excess contribution penalty is a 6% excise tax the IRS charges on any amount you put into a traditional or Roth IRA above what you were allowed to contribute, and it applies every year the excess remains in the account. You can avoid it entirely by withdrawing the excess (plus any earnings it produced) before your tax filing deadline, and if you miss that window you can still stop it from recurring by pulling the money out, absorbing it against a future year’s limit, or recharacterizing the contribution.
How the 6% Tax Works
The penalty is 6% of the excess amount sitting in your IRA on the last day of the tax year.1Office of the Law Revision Counsel. 26 USC 4973 – Tax on Excess Contributions to Certain Tax-Favored Accounts and Annuities Over-contribute by $3,000 and don’t fix it, and you owe $180. Leave it there through the next December 31 and you owe another $180. The tax keeps compounding annually until the excess is gone.
There is one statutory guardrail. The excise tax for any year can’t exceed 6% of the combined value of all your IRAs at year-end.1Office of the Law Revision Counsel. 26 USC 4973 – Tax on Excess Contributions to Certain Tax-Favored Accounts and Annuities In practice this cap only bites when the excess is unusually large relative to the account balance. For most people, straight 6% of the overage is the number.
One common misconception: the excise tax does not replace income tax. It sits on top of any income tax you owe when you correct the excess. Because it recurs every year, even a modest overage left alone can cost more in penalties than the money ever earned inside the account.
What Causes an Excess Contribution
The obvious trigger is depositing more than the annual dollar limit. For 2026, that’s $7,500, or $8,600 if you’re age 50 or older.2Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500 Several less obvious situations catch people off guard.
Roth income miscalculations. Roth IRA eligibility phases out based on modified adjusted gross income. You fund the account early in the year expecting to qualify, then a raise, bonus, or investment gain pushes your MAGI above the phase-out ceiling. The contribution that looked fine in January becomes partially or fully excess once the year closes, and the 6% penalty applies to whatever portion exceeds your reduced allowable amount.1Office of the Law Revision Counsel. 26 USC 4973 – Tax on Excess Contributions to Certain Tax-Favored Accounts and Annuities
Botched rollovers. You get one indirect (60-day) rollover across all your IRAs in any 12-month period. Do a second one inside that window and the transfer doesn’t qualify as a rollover. It counts as a regular contribution instead, and typically pushes you past the annual limit.3Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions Direct trustee-to-trustee transfers aren’t subject to the one-rollover rule.
Compensation shortfall. Your contribution can’t exceed your taxable compensation for the year. Contribute $7,500 on $4,000 of earned income and $3,500 is excess.4Office of the Law Revision Counsel. 26 USC 219 – Retirement Savings This trips up retirees living mostly on investment income and spouses who stop working mid-year.
Three Ways to Fix It
The IRS gives you three options. Which one fits depends on how much time you have and how large the excess is.
Withdraw the Excess Before Your Filing Deadline
The cleanest fix is pulling the excess out of the account, along with any earnings it generated, by the due date of your tax return including extensions.5Internal Revenue Service. Publication 590-A – Contributions to Individual Retirement Arrangements (IRAs) For a 2026 contribution, that generally means April 15, 2027, or October 15, 2027 with an extension. Withdraw in time and the 6% penalty never applies for that year.
Your custodian calculates the Net Income Attributable, or NIA, which is the earnings (or losses) tied to the excess while it sat in the account. The NIA comes out with the excess and is taxable as ordinary income in the year of the original contribution. The NIA is not subject to the 10% early distribution penalty even if you’re under 59½, a change made by the SECURE 2.0 Act.
Apply the Excess to a Future Year
If you leave the money in the account, you can absorb the excess by contributing less than the limit in a later year. Over-contributed by $1,500 in 2026? Put in $6,000 in 2027 instead of $7,500, and the remaining $1,500 of room soaks up the prior-year excess.5Internal Revenue Service. Publication 590-A – Contributions to Individual Retirement Arrangements (IRAs) You still owe 6% for each year the excess sits there, but you avoid a corrective withdrawal.
This works best for small overages. If the excess is large, paying multiple years of 6% while slowly absorbing it usually costs more than just taking the money out.
Recharacterize the Contribution
If you contributed to one type of IRA but would have qualified for the other, you can recharacterize. Put money into a Roth and then discovered your income was too high? You can move it over to a traditional IRA (if you’re eligible), and it’s treated as if it went there from the start. Recharacterization has to be completed by your tax filing deadline including extensions.
One boundary worth naming: this option covers contributions only. Recharacterizing a Roth conversion has been prohibited since 2018.
Reporting the Tax on Form 5329
If you owe the excise tax, you report it on IRS Form 5329, attached to your Form 1040.6Internal Revenue Service. Instructions for Form 5329 The form covers extra taxes on several tax-favored accounts, so you have to work the right section: Part III for a traditional IRA excess, Part IV for a Roth. You enter the total excess, including anything carried over from prior years, and your year-end statements provide the balance you need to confirm you’re inside the 6%-of-account-value cap.7Internal Revenue Service. Excess IRA Contributions
Here is where people create real problems for themselves: skipping Form 5329 entirely. The IRS normally has three years from the date you file to assess more tax. If you never file the form, the clock never starts. The IRS can come back years later and stack up penalties you assumed had expired.8Internal Revenue Service. 25.6.1 Statute of Limitations Processes and Procedures Filing the form, even late, is always better than not filing it.
Asking the IRS to Waive the Penalty
The IRS can abate penalties for reasonable cause. The test is whether you exercised “ordinary business care and prudence” but still couldn’t comply.9Internal Revenue Service. IRM 20.1.1 Penalty Handbook, Introduction and Penalty Relief Each request is judged on its own facts, and the IRS weighs what happened, why it stopped you from complying, and what you did to fix things once you could.
Arguments that can support relief include serious illness affecting you or an immediate family member, a natural disaster that cut off access to your records, reliance on incorrect advice from a tax professional, or inability to obtain records despite reasonable effort. Prompt correction after the obstacle passed helps.9Internal Revenue Service. IRM 20.1.1 Penalty Handbook, Introduction and Penalty Relief
What generally doesn’t work: forgetting, not knowing the rules, or blaming someone you handed the task to without checking on it. The IRS treats those as failures of ordinary care, not circumstances beyond your control. If you request abatement, document the timeline, the specific obstacle, and the steps you took to fix the excess as soon as you found out about it.