Can You Roll a Roth IRA Into a 401(k)? IRS Rules and Alternatives

No, you cannot roll a Roth IRA into a 401(k). IRS Publication 590-A states the rule directly: a rollover from a Roth IRA to an employer-sponsored retirement plan is not allowed.¹ The only permitted rollover destination for Roth IRA funds is another Roth IRA. A Roth 401(k) is a different account, and its rules are different, which is where most of the confusion on this question comes from.

Why the IRS Blocks This Rollover

The restriction sits in the tax code itself. Under 26 U.S.C. § 408(d)(3)(A)(ii), the only IRA money that can be rolled into an employer plan is the portion that would be includible in your gross income if distributed.² Roth IRA contributions are made with after-tax dollars, and qualified distributions come out tax-free. Nothing is includible in gross income, so the statute caps the eligible rollover amount at zero.

Money flows one direction only. A 401(k), 403(b), 457(b), or traditional IRA can move into a Roth IRA through a conversion or rollover. Roth IRA money cannot flow back to an employer plan.³

Roth IRA vs. Roth 401(k): Two Different Accounts

The word “Roth” attaches to two accounts that live under different sections of the tax code. A Roth IRA is an individual account you open yourself, governed by 26 U.S.C. § 408A.³ A designated Roth account, which is what people mean by a Roth 401(k), is the Roth option inside an employer’s 401(k), 403(b), or 457(b) plan, governed by 26 U.S.C. § 402A.⁴

Both use after-tax contributions. Both offer tax-free qualified distributions. Their rollover rules are not the same. A designated Roth account can roll into another designated Roth account at a new employer’s plan (if that plan accepts rollovers) or into a Roth IRA.⁴ A Roth IRA can only go to another Roth IRA. Someone changing jobs might move a Roth 401(k) balance to the new employer’s plan without issue and assume a separately held Roth IRA can follow. It cannot.

What You Can Do With Roth IRA Funds Instead

If the goal was to consolidate accounts or simplify your retirement picture, these are the moves the IRS does allow:

Move the Roth IRA to a different custodian. A direct trustee-to-trustee transfer between Roth IRAs is the simplest method and does not count against the one-rollover-per-year limit.⁵
Do a 60-day rollover to another Roth IRA. You take a distribution and redeposit it into a different Roth IRA within 60 days. This method is limited to once every 12 months across all your IRAs.⁵
Withdraw the money. Contributions come out first, tax-free and penalty-free at any time. Earnings withdrawn before age 59½ or before the account meets the five-year holding period may be subject to income tax and a 10% early distribution penalty.⁶
Leave it in place. Roth IRAs have no required minimum distributions during the owner’s lifetime, and the 2026 annual contribution limit is $7,500, or $8,600 if you are 50 or older.⁷

None of these puts Roth IRA money inside an employer plan. They do give you room to change custodians, tap the account, or keep growing it tax-free.

If You Already Withdrew the Money

Most plan administrators will catch an ineligible Roth IRA rollover during their intake verification and reject it.⁸ The bigger risk is on your side: you pulled money out of the Roth IRA planning to deposit it into a 401(k), the plan refused it, and the 60-day window to put the funds back into a Roth IRA is closing.p>

If that window passes, the withdrawal becomes a distribution. Contributions come out tax-free. Any earnings distributed before age 59½ can be hit with ordinary income tax and the 10% early distribution penalty.⁶ If the funds do land in an employer plan and stay there, the deposit is treated as an excess contribution, which carries its own IRS penalty until it is corrected.⁹ Fixing the problem before the tax filing deadline keeps the damage contained.

Moving a Roth 401(k) Into a New Employer’s Plan

Some readers arrive at this question with a Roth 401(k) from a former job, not a Roth IRA. That rollover is allowed. If your new employer’s plan accepts Roth rollover contributions, the former plan can send the balance directly to the new plan’s trustee. A direct rollover has no tax withheld, and the former plan reports the transfer to the IRS on Form 1099-R with distribution code G.⁵ If the former plan issues a paper check, it should be made payable to the new plan’s trustee for your benefit, not to you personally.¹⁰

An indirect rollover is also available: the former plan pays you, and you have 60 days to deposit the funds into the new plan. This route has friction. If the distribution is not qualified, the plan must withhold 20% of the earnings portion for federal income tax before releasing the money, and you would need to make up that 20% from other funds to complete a full rollover, recovering the withheld amount as a credit on your tax return.¹⁰ Missing the 60-day deadline makes the earnings portion taxable and can trigger the 10% penalty if you are under 59½.⁶ A direct rollover avoids both problems.

Why the Old Reason for This Move No Longer Applies

People used to look for ways to consolidate Roth money inside an employer plan for reasons that have partly disappeared. Before 2024, designated Roth accounts required lifetime minimum distributions while Roth IRAs did not, which prompted some workers to move Roth 401(k) balances into a Roth IRA. Section 325 of the SECURE 2.0 Act eliminated lifetime RMDs for designated Roth accounts starting in tax years after December 31, 2023.¹¹¹² For living owners, neither account requires withdrawals now.

Asset Protection Is Not a Workaround

Another reason people ask about pushing IRA money into a 401(k) is creditor protection. Employer plans covered by ERISA receive broad federal protection from creditors, and 401(k) funds generally cannot be seized to pay personal debts, including in bankruptcy, with no dollar cap.¹³ IRAs get bankruptcy protection through a separate federal law that caps the shielded amount at an inflation-adjusted figure currently around $1.7 million for directly contributed funds.

Because the rollover from a Roth IRA to a 401(k) is not permitted, you cannot use it to upgrade the protection on Roth IRA money. If creditor protection matters to you, the practical takeaway runs the other way: eligible employer-plan money that you were considering rolling into a Roth IRA loses its ERISA-level shield once it lands in the IRA. Leaving it in the employer plan preserves the stronger protection.

1
Internal Revenue Service. Publication 590-A, Contributions to Individual Retirement Arrangements (IRAs)
2
Office of the Law Revision Counsel. 26 USC 408 – Individual Retirement Accounts
3
Office of the Law Revision Counsel. 26 USC 408A – Roth IRAs
4
Office of the Law Revision Counsel. 26 USC 402A – Optional Treatment of Elective Deferrals as Roth Contributions
5
Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
6
Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts
7
Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
8
Internal Revenue Service. Verifying Rollover Contributions to Plans
9
Office of the Law Revision Counsel. 26 USC 4973 – Tax on Excess Contributions to Certain Tax-Favored Accounts and Annuities
10
Internal Revenue Service. Topic No. 413, Rollovers From Retirement Plans
11
Federal Register. Required Minimum Distributions
12
Internal Revenue Service. RMD Comparison Chart (IRAs vs. Defined Contribution Plans)
13
U.S. Department of Labor. FAQs About Retirement Plans and ERISA