How to Report IRA Recharacterization on Your Tax Return

To report an IRA recharacterization on your tax return, file for the year the original contribution was made: enter the gross transfer from your Form 1099-R on Line 4a of Form 1040, enter zero (or the small taxable amount) on Line 4b, file Form 8606 if any part of the contribution is nondeductible, and attach a written statement explaining the transfer. The paperwork is a reclassification, not a withdrawal, so a correctly reported recharacterization produces no tax on the move itself.

Only Contributions Can Be Recharacterized

Before anything else, confirm you’re dealing with a contribution and not a conversion. Since the Tax Cuts and Jobs Act of 2017 took effect, Roth conversions made in 2018 or later cannot be undone.¹ If you moved traditional IRA money into a Roth and regret it, that transaction is permanent and nothing in this article applies. Everything that follows is for contribution recharacterizations: a Roth contribution moved to a traditional IRA, or a traditional contribution moved to a Roth.

Which Year’s Return Reports the Recharacterization

Report the recharacterization on the return for the year of the original contribution, not the year the transfer physically happened. If you contributed to a Roth for 2025 in December 2025 and recharacterized to a traditional IRA in March 2026, the reporting goes on your 2025 return.²

This creates a predictable paperwork lag. The custodian issues the Form 1099-R for the year the transfer actually occurred, so for the example above you won’t receive the 1099-R until early 2027, after your 2025 return is due. File based on your custodian’s confirmation statement or year-end records, then verify the 1099-R against what you reported when it arrives. If the amounts don’t match, call the custodian before the discrepancy generates an IRS notice.

Form 1040, Lines 4a and 4b

Line 4a shows the gross distribution reported in Box 1 of the 1099-R: the original contribution plus or minus the net income attributable (NIA) that the custodian calculated and transferred with it. Line 4b shows the taxable amount, which for a properly executed recharacterization is typically zero.³ The IRS expects to see the full gross amount on 4a; leaving it off because nothing is taxable can prompt a matching notice when the 1099-R hits their system.

Form 8606 When Any Portion Is Nondeductible

Form 8606 tracks nondeductible basis in traditional IRAs. Whether you need it depends on which direction the money moved and whether the traditional side is deductible.³

If you recharacterized a traditional IRA contribution entirely to a Roth, don’t report the contribution on Form 8606 at all. If you recharacterized only part of it, report the nondeductible portion of whatever remains in the traditional IRA on Part I.

If you recharacterized a Roth contribution to a traditional IRA, report the nondeductible traditional portion on Part I of Form 8606. Don’t report the original Roth contribution anywhere on the form. The IRS treats the earnings or losses that accrued in the first IRA as if they had occurred in the receiving IRA, so don’t include the recharacterized amount on Line 7 or in any Part I distribution calculation.⁴

Establishing that basis matters later. Without a Form 8606 on file, you can end up paying tax a second time on the same money when you take distributions or run a backdoor Roth conversion down the road.

The Required Explanatory Statement

Publication 590-A and the Form 8606 instructions both require a written statement attached to your return describing the recharacterization.² The IRS doesn’t prescribe a format, but the statement needs enough detail to match the transaction to the custodial forms. Include:

The type of contribution (traditional or Roth) and the dollar amount recharacterized.
The date of the original contribution and the tax year it was for.
The date the custodian completed the transfer.
Whether the receiving IRA is traditional or Roth.
The names of the trustees or custodians for both the transferring and receiving accounts.
The net income attributable transferred with the contribution.

For an e-filed return, attach the statement as a PDF. For a paper return, place it behind Form 1040. Most tax software has a dedicated field for an explanatory or election statement; if yours does, check the output to confirm every item made it through.

Reading the 1099-R Distribution Code

Box 7 of the 1099-R carries a distribution code that tells the IRS the transaction is a recharacterization rather than a taxable withdrawal.⁵ Two codes apply:

Code R: a prior-year contribution recharacterized in the current year. A 2025 contribution recharacterized in 2026 gets Code R on the 2026 1099-R.
Code N: a current-year contribution recharacterized in the same calendar year. A 2026 contribution recharacterized during 2026 gets Code N.

Either code signals that the gross amount shouldn’t be taxed as a distribution. If you receive a 1099-R with a different code on a recharacterization, contact the custodian for a correction. An ordinary distribution code will prompt the IRS to ask why you didn’t include the amount in income.

Form 5498 from the receiving custodian reports the contribution as if it had always been made to that IRA, with Box 4 showing the recharacterized amount. It usually arrives at the end of May, well after you’ve filed, and is informational only.

Claiming a Deduction After a Roth-to-Traditional Move

If you recharacterized a Roth contribution to a traditional IRA and the traditional contribution qualifies for a deduction based on your income and employer-plan status, claim it on Schedule 1, Line 20.⁶ If the traditional contribution is nondeductible, skip Line 20 and rely on Form 8606 to record the basis.

If You Missed the Recharacterization Deadline

The recharacterization has to be completed by the filing deadline for the contribution year, including extensions. For a 2026 contribution, that’s April 15, 2027, or October 15, 2027, with an extension on file.¹ Requesting an extension before the original deadline preserves the longer window even if you file your return early.

If you filed on time but missed the recharacterization deadline, a narrow safety valve exists. You can still complete the recharacterization within six months of the original due date (not counting extensions) and file an amended return. Write “Filed pursuant to section 301.9100-2” at the top of the amended return.²

Miss that window too and the contribution stays where it is. If it exceeded the Roth income limits, it becomes an excess contribution subject to a 6% excise tax every year it remains in the account, reported on Form 5329.¹ You can withdraw the excess plus earnings (paying tax and possibly the 10% early-withdrawal penalty on the earnings) or absorb it against the next year’s contribution limit, though the 6% penalty applies for each year the excess existed. Requesting a filing extension by default whenever you’ve made IRA contributions and aren’t certain about your final income is cheap insurance against this outcome.

1
Office of the Law Revision Counsel. 26 U.S. Code 408A – Roth IRAs
2
Internal Revenue Service. Publication 590-A – Contributions to Individual Retirement Arrangements
3
Internal Revenue Service. Instructions for Form 8606 (2025)
4
Internal Revenue Service. Form 8606 – Nondeductible IRAs
5
Internal Revenue Service. Instructions for Forms 1099-R and 5498
6
Internal Revenue Service. 2025 Schedule 1 (Form 1040)