A dollar sitting in a workplace 401(k) enjoys a level of legal protection that most other assets in a household never get: under federal law, a judgment creditor generally cannot touch it, no matter how large the judgment or which state the retiree lives in. That protection comes from a decades-old federal pension law, not from any state homestead exemption or asset-protection trust a retiree might set up separately. The same money loses some of that federal armor the moment it rolls into an individual retirement account, a distinction that catches many retirees off guard only after a lawsuit or bankruptcy filing has already begun.
How ERISA Shields a 401(k) From Creditors
The Employee Retirement Income Security Act includes an anti-alienation provision that bars 401(k) and other employer-sponsored retirement plan assets from being assigned, garnished or otherwise reached by a participant’s creditors, according to the Labor Department’s FAQ on retirement plans and ERISA. The protection applies whether or not the retiree has filed for bankruptcy, and it does not depend on the size of the account or the state where the retiree lives, unlike many other asset-protection strategies that vary sharply from one state to the next.
The U.S. Supreme Court reinforced that protection in 1992, ruling in Patterson v. Shumate that ERISA’s anti-alienation requirement keeps a qualified retirement plan’s assets out of a debtor’s bankruptcy estate entirely, rather than merely exempting them up to some dollar limit. That distinction matters because assets excluded from the estate never become available to creditors in the first place, while assets that are only exempt can still be contested case by case in bankruptcy court. For a retiree facing a lawsuit or a failed business, the practical effect is that a 401(k) balance is treated as though it never belonged to the household’s general pool of assets at all.
That same Supreme Court opinion noted that individual retirement accounts are specifically excepted from ERISA’s anti-alienation requirement under the Internal Revenue Code, along with pension plans run by governments and churches, which fall outside ERISA’s coverage entirely. That carve-out is the legal root of the gap between how a 401(k) and an IRA are treated once a creditor comes looking.
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Where an IRA’s Protection Gets Weaker
Once retirement savings move out of an employer plan and into an IRA, federal bankruptcy law still offers some protection, but that protection is explicitly capped. The Bankruptcy Code sets a base limit of $1,000,000 on the aggregate value of traditional and Roth IRA assets a debtor can shield in a bankruptcy filing, a figure Congress built an automatic inflation adjustment into, and one that has climbed past $1.7 million in recent years. Outside of a bankruptcy filing, whether an IRA is shielded from a lawsuit or a judgment at all depends on the exemption laws of the retiree’s own state, which vary widely from one state to another, unlike the essentially unlimited, nationwide protection ERISA gives a 401(k).
That gap becomes especially relevant for retirees who roll a 401(k) into an IRA soon after leaving a job, a common and often sensible move for consolidating accounts and expanding investment choices. The rollover itself does not create a problem, but a retiree who is already facing a lawsuit, a pending bankruptcy or a business dispute may want to understand that the money’s legal protection can change the moment it leaves the employer plan, well before the funds ever land in the new account.
The Exceptions That Still Apply to Both Accounts
Neither a 401(k) nor an IRA is protected from every claim. Federal law carves out an exception for family support and property division in divorce, allowing a state court to award part of a retirement account to a spouse, former spouse or child through a qualified domestic relations order, according to the same Labor Department guidance on retirement plans and ERISA. The IRS can also levy retirement accounts, including 401(k)s, to collect unpaid federal taxes, a power that ERISA’s anti-alienation rule generally does not block.
Criminal restitution orders and certain federal fines can likewise reach retirement savings that would otherwise be untouchable by an ordinary creditor. Retirees weighing whether to leave money in a former employer’s 401(k) or roll it into an IRA sometimes overlook these carve-outs, treating either account as an impenetrable vault when both actually remain reachable in a narrower set of circumstances tied to taxes, family obligations and certain court judgments.
The practical upshot is that the choice between leaving money in a 401(k) and rolling it into an IRA is not solely about investment options or fees. It can also be an asset-protection decision, particularly for retirees in a profession with elevated lawsuit risk or those living in a state with thin IRA exemptions. A retiree with significant retirement savings and genuine liability exposure, such as a small-business owner who has personally guaranteed a loan, may have real reasons to keep at least part of a balance inside an ERISA-covered plan rather than consolidating everything into an IRA.
That tradeoff rarely gets weighed at the moment of rollover, when the paperwork focuses on tax withholding and investment lineups rather than creditor exposure. The distinction typically only becomes visible when a lawsuit or bankruptcy filing forces the question, and by then the money has often already moved, with the more protective structure no longer available to fall back on.
This article was drafted with AI assistance and edited for accuracy.
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