IRA Over-Contribution: 6% Penalty, Deadlines, and Form 5329

Putting more into your IRA than the law allows triggers an IRA over-contribution penalty of 6% on the excess amount, charged for every year the money stays in the account. The fix is straightforward if you catch it in time: withdraw the excess plus any earnings it generated before your tax filing deadline (including extensions, so up to October 15), and the 6% penalty disappears entirely. Miss that window and you owe the penalty for each year the excess sat there, though you can still stop the bleeding going forward.

How to Tell If You Actually Over-Contributed

For 2026, the combined cap across all your Traditional and Roth IRAs is $7,500, or $8,600 if you’re 50 or older.¹ It’s one limit across every IRA you own, not per account. Three IRAs with $3,000 each puts you $1,500 over.

Your contribution also can’t exceed your taxable compensation for the year. Earn $4,000 in wages and $4,000 is your ceiling, regardless of the statutory limit.² Compensation means wages, salaries, commissions, tips, bonuses, and net self-employment income. Rental income, dividends, pension payments, and deferred compensation don’t count.³ One exception: if you file jointly and your spouse has earned income, you can contribute to your own IRA on their compensation, as long as the combined contributions don’t exceed what’s reported on the joint return.⁴

Roth IRA Income Phase-Outs

Roth IRAs layer on an income test. For 2026, your ability to contribute phases out at these modified adjusted gross income levels:¹

Single or head of household: $153,000 to $168,000
Married filing jointly: $242,000 to $252,000
Married filing separately: $0 to $10,000

Within those ranges, your allowable Roth contribution shrinks. Above the top of the range, you can’t contribute directly to a Roth at all. A direct Roth contribution made when your income is too high is an excess contribution even if the dollar amount is well under $7,500. This is one of the most common ways people trip the penalty without realizing it.

Rollover Mistakes

Botched rollovers are the other frequent culprit. Take a distribution from one IRA intending to move it to another, and you have 60 days to complete the transfer. Miss that window and the funds sitting in the receiving IRA get treated as an excess contribution, on top of the original distribution becoming taxable income. You’re also limited to one indirect IRA-to-IRA rollover in any 12-month period. A second rollover inside that window creates the same excess-contribution problem.⁴

How the 6% Tax Works

An uncorrected excess contribution is hit with a 6% excise tax every year it remains in the account.⁵ The tax is calculated on the excess still sitting in the account at year-end. Over-contribute by $2,000 and leave it there for three years, and that’s $120 each year, $360 total.

There’s a cap: the 6% tax can’t exceed 6% of the combined year-end value of all your IRAs.⁶ In practice this cap only kicks in if your IRA balance is tiny relative to the excess. For most people the standard 6%-of-excess number applies, and it compounds every year until you clean it up.

Fix It Before the Tax Deadline

The cleanest correction is pulling the excess back out before your tax filing deadline for the year of the contribution. If you file an extension, you have until October 15.⁷ A timely withdrawal eliminates the 6% penalty completely.

You can’t just pull out the original dollar amount, though. The withdrawal has to include any net income attributable (NIA) to the excess while it was in the account. Your IRA custodian runs this calculation. The formula measures how much your IRA grew or shrank during the period the excess was invested, then assigns a proportional share of that gain or loss to the excess contribution.⁸ If the IRA lost money during that window, the NIA can be negative, and you’ll actually take out less than you put in.

The excess contribution itself comes back tax-free since it was never deducted. The NIA is different. It’s taxable income in the year you made the original contribution, not the year you take it out.⁹ If you’re under 59½, that NIA portion is also hit with the 10% early distribution penalty unless a separate exception applies, like disability or qualified education expenses.¹⁰ The original excess is not subject to the 10%.

Your custodian issues a Form 1099-R for the corrective distribution. Withdraw in the same calendar year you contributed and the form typically shows distribution code 8 (earnings taxable in the current year). Withdraw in the following year but still before the extended deadline and it shows code P (earnings taxable in the prior year).¹¹

Recharacterizing Instead of Withdrawing

If your over-contribution happened because you exceeded the Roth income limits, recharacterization is often simpler than a withdrawal. You direct your custodian to transfer the contribution plus NIA from the Roth into a Traditional IRA, and the IRS treats the money as if it had always gone into the Traditional IRA.¹² Same deadline as a withdrawal, same result: no 6% penalty.

One important boundary: recharacterization only works for contributions, not Roth conversions. The Tax Cuts and Jobs Act permanently killed the ability to undo a conversion back in 2018. If you converted too much to a Roth, recharacterization won’t rescue you.

Fix It After the Deadline

Once October 15 passes with the excess still in place, the 6% penalty applies for that year and the clean correction is off the table. You still have two moves, but neither undoes the penalties already incurred.

You can withdraw the excess at any time. Doing so stops the 6% from accruing in future years, but you still owe the penalty for every year the excess was in the account through December 31.⁵ A late withdrawal doesn’t require the NIA calculation. That’s only required for timely corrections.

The other option is to absorb the excess into a future year’s contribution. If you over-contributed by $1,500 in 2026 and your 2027 limit is $7,500, you’d put in only $6,000 of new money for 2027 to use up the carryover room. This stops the penalty going forward but doesn’t erase it for the years the excess sat uncorrected.⁷ This path makes sense when the excess is small and you were planning to contribute next year anyway.

Reporting on Form 5329

You report excess contributions and the 6% penalty on Form 5329, Additional Taxes on Qualified Plans Including IRAs and Other Tax-Favored Accounts.¹³ It calculates the excise tax and documents any corrective action.

Normally Form 5329 attaches to your Form 1040. If you’ve already filed or aren’t required to file, you can submit Form 5329 on its own by the regular filing deadline. A standalone Form 5329 has to be filed on paper with your signature and address.¹⁴

Filing this form matters even if you don’t owe anything, because of the statute of limitations. File Form 5329 and the IRS has three years from the filing date to assess the 6% penalty. Skip it and rely only on your regular 1040, and the window stretches to six years.¹⁵ Someone who makes an excess contribution, never notices, files a normal return, and assumes they’re clear after three years can get a surprise bill in year five. Filing Form 5329 after a timely correction, even with no penalty owed, starts the shorter clock.

SEP IRA Corrections Work Differently

If the excess came from a SEP IRA contribution made by you as a self-employed person or small-business owner, the standard individual correction process doesn’t apply. Excess employer contributions have to be distributed from the affected employee’s SEP IRA and returned to the employer, adjusted for earnings through the correction date. The employer loses the deduction for the excess.¹⁶

If the error is caught outside an IRS audit, the employer can apply to the Voluntary Correction Program (VCP) and potentially leave the excess in the SEP IRA by paying a sanction of at least 10% of the excess. For minor errors caused by a breakdown in existing compliance procedures, the Self-Correction Program (SCP) may be available with no formal submission.¹⁶

1
Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
2
Office of the Law Revision Counsel. 26 U.S. Code 219 – Retirement Savings
3
Internal Revenue Service. Topic No. 451, Individual Retirement Arrangements (IRAs)
4
Internal Revenue Service. Retirement Topics – IRA Contribution Limits
5
Internal Revenue Service. IRA Excess Contributions
6
Internal Revenue Service. Retirement Topics – IRA Contribution Limits – Section: Tax on Excess IRA Contributions
7
Internal Revenue Service. IRA Year-End Reminders – Section: Excess Contributions
8
eCFR. 26 CFR 1.408-11 – Net Income Calculation for Returned or Recharacterized IRA Contributions
9
Office of the Law Revision Counsel. 26 USC 408 – Individual Retirement Accounts
10
Internal Revenue Service. Publication 590-A, Contributions to Individual Retirement Arrangements
11
Internal Revenue Service. Instructions for Forms 1099-R and 5498
12
eCFR. 26 CFR 1.408A-5 – Recharacterized Contributions
13
Internal Revenue Service. About Form 5329, Additional Taxes on Qualified Plans (Including IRAs) and Other Tax-Favored Accounts
14
Internal Revenue Service. Instructions for Form 5329
15
Office of the Law Revision Counsel. 26 U.S. Code 6501 – Limitations on Assessment and Collection
16
Internal Revenue Service. SEP Plan Fix-It Guide – Contributions to the SEP-IRA Exceeded the Maximum Legal Limits