How Do You Split a 401(k) and Other Retirement Accounts in Divorce?

Splitting a 401(k) in divorce generally involves identifying the share to be divided and obtaining a Qualified Domestic Relations Order, or QDRO, that the plan accepts. An IRA uses a different transfer process. Start by identifying each account type before arranging any withdrawal or transfer.

The account balance alone does not tell you what each spouse will receive. Contributions before marriage, investment gains, plan rules, taxes, and the settlement terms can all matter. This guide separates the property-division question from the paperwork needed to carry out the division.

How a QDRO Divides a 401(k)

Federal law (ERISA) generally bars a private retirement plan from paying anyone's benefit to someone other than the participant — with one specific exception: a state-court order that meets the federal definition of a qualified domestic relations order . Once a plan administrator determines an order is “qualified,” the plan is required to pay the non-employee spouse (called the “alternate payee”) directly, according to 29 U.S.C. § 1056(d) .

The QDRO isn't just paperwork — it's what keeps the split from looking like an early withdrawal to the IRS. According to the IRS's guidance on exceptions to the early-distribution tax , a distribution paid to a spouse or former spouse under a QDRO is specifically exempt from the 10% additional tax that normally applies to withdrawals before age 59½. The receiving spouse still owes ordinary income tax on the money (unless it's rolled into their own IRA or plan), but the penalty is off the table — as long as the payout happens under a properly qualified order, per the IRS's QDRO guidance .

Practical Tip: Don't touch the account — don't request a withdrawal, don't ask the participant spouse to “just cash out your half” — until the QDRO is drafted and approved. Ask your attorney to request the plan's QDRO procedures and model order early in the case; plan administrators must review a submitted order and, under § 1056(d)(3)(H), can hold disputed funds in a segregated account for up to 18 months while they decide whether it qualifies.

IRAs Skip the QDRO Entirely

An IRA is not an ERISA plan, so the QDRO mechanism doesn't apply to it at all. Instead, IRAs are divided through what the tax code calls a “transfer incident to divorce” under 26 U.S.C. § 408(d)(6) . The IRA custodian retitles or directly transfers funds from one spouse's IRA into the other spouse's IRA based on the divorce decree or a court-approved settlement agreement — no separate court order in QDRO format is required, and many custodians will actually reject a document labeled “QDRO” because it's the wrong instrument for an IRA.

Timing matters here more than with a QDRO. Per the IRS's FAQs on IRA distributions , a proper trustee-to-trustee transfer is tax-free, but if funds are paid out to the receiving spouse instead of moved directly, that spouse has 60 days to roll the money into their own IRA to keep the tax-free treatment. Miss that window, and ordinary income tax — plus the 10% early-withdrawal penalty if the receiving spouse is under 59½ — can apply, because the QDRO penalty exception never extends to IRAs in the first place.

Pensions, Federal Benefits, and Military Pay Each Use a Different Order

There is no single universal document that divides every kind of retirement benefit. Private-sector 401(k)s, pensions, and 403(b) plans use a QDRO. IRAs use the transfer described above. Federal employee retirement (FERS or CSRS) is divided only through a Court Order Acceptable for Processing (COAP) under the Office of Personnel Management's own rules — OPM will generally reject an ERISA-style QDRO outright unless it's specifically conformed to its requirements.

Military retired pay has its own framework entirely: the Uniformed Services Former Spouses' Protection Act (USFSPA) lets state courts treat military retirement as marital or community property, but according to the Defense Finance and Accounting Service's USFSPA FAQs , a former spouse can only receive payments made directly by DFAS if the marriage overlapped at least 10 years of the service member's creditable military service — the “10/10 rule.” That rule only affects how the payment is delivered (directly from DFAS versus from the service member), not whether the former spouse is legally entitled to a share of the benefit.

Which Part of the Account Is Marital Property?

Every state we checked — community-property states like California and Texas, and equitable-distribution states like Florida, New York, Pennsylvania, Illinois, Ohio, Georgia, North Carolina, and Michigan — starts from the same default: only the portion of a retirement account or pension earned or contributed during the marriage is marital property. Whatever was already in the account before the wedding, plus its growth, generally stays separate property.

Two things complicate that simplicity. First, if premarital and marital contributions were commingled without records, a court can end up treating the whole account as marital because there's no way to trace the separate share — so keeping old statements from before the marriage matters more than people expect. Second, Pennsylvania is a documented outlier: under Anthony v. Anthony, the entire increase in value of separate property during the marriage — including a premarital retirement account — is treated as marital, without the passive-versus-active growth distinction most other states use. In plain terms: in Pennsylvania, growth on money you brought into the marriage isn't automatically protected the way it would be in most other states.

Coverture Fraction vs. Tracing: The Math Depends on the Account Type

The method for identifying the marital share depends on the type of retirement benefit. For a defined-benefit pension (a promised future income stream, not a balance you can look up online), a time-based coverture, or “time rule,” fraction is the dominant national method: years of marital service divided by total years of service, multiplied by the benefit. It shows up under a different case name in nearly every state we checked — Taggart/Berry in Texas, Majauskasin New York, Berrington in Pennsylvania, Hunt in Illinois, and similar time-rule approaches in Ohio, Georgia, North Carolina, and Michigan.

For a defined-contribution plan like a 401(k), most states don't use a coverture fraction at all. Instead, courts identify the account balance as of the marriage or separation date, then trace contributions and investment gains or losses on the marital slice going forward — a method confirmed in North Carolina's statute (Formula 3B under N.C. Gen. Stat. § 50-20.1), and in Texas and Florida property-division practice as well. So “coverture fraction” is exactly the right mental model for a pension, but the wrong one for a typical 401(k) — which is why your attorney or QDRO drafter needs to know which type of plan you actually have before writing the order.

Does Cashing Out Always Trigger the 10% Penalty? Not Quite

For a qualified plan like a 401(k), a distribution paid directly to the receiving spouse under a QDRO is specifically exempted from the 10% early-withdrawal penalty under 26 U.S.C. § 72(t)(2)(C) . The spouse still owes ordinary income tax on it unless they roll it into their own IRA or plan — but not the extra 10%.

That exception is narrower than people assume, though. It only covers the QDRO payout itself — if the receiving spouse rolls the money into their own IRA and later withdraws it early, normal early-withdrawal rules apply again from that point, per the same IRS guidance cited above. And it never applies to IRAs at all: if a spouse pulls money out of a traditional IRA before age 59½ to pay the other spouse, instead of doing a proper IRA-to-IRA transfer incident to divorce, the 10% penalty does apply. The rule isn't “cashing out always costs 10%” or “a QDRO always avoids it” — it depends entirely on the account type and how the money moves.

How Is the Marital Share Split Between Spouses?

Once the marital share is identified, the next question is how it will be allocated between spouses. “Only the marital share is divisible” answers a valuation question — how much money is even on the table. It says nothing about the award — how that money gets split — and that depends entirely on your state's property system. In community-property states like California and Texas, the marital share is generally split equally absent an offsetting award elsewhere in the settlement. In equitable-distribution states — Florida, New York, Pennsylvania, Illinois, Ohio, Georgia, North Carolina, and Michigan among them — the marital portion is divided “equitably,” which is not automatically a 50/50 split; a judge can and does award an uneven percentage based on statutory factors like each spouse's income, age, and contribution to the marriage. Don't assume “marital portion” and “my half” are the same number until you know which system your state uses.

See What Dividing Retirement Assets Could Mean for Your Case

Retirement division is only one piece of the overall cost and complexity of a divorce — a QDRO drafting fee, a business valuation, or a contested custody dispute can all add to the total. Use our free calculator below, which automatically detects your state, to get a personalized starting estimate.

How Retirement Division Varies by State

The biggest state-level split is between community-property states, where the marital share of a retirement account is generally divided equally, and equitable-distribution states, where the marital portion is divided based on fairness factors rather than a fixed 50/50 rule. How the marital portion itself gets calculated also varies by whether the account is a pension or a 401(k)-style plan:

What to Do Next

1. Get the Summary Plan Description (SPD) for every 401(k) or pension involved, and the most recent statement showing the balance as of the marriage date if you have one — that's what makes tracing the marital portion possible.
2. Ask your attorney to identify the correct instrument for each account before drafting anything: a QDRO for a 401(k) or pension, a transfer incident to divorce for an IRA, a COAP for a federal FERS/CSRS pension, or a USFSPA-compliant order for military retired pay.
3. Request the plan's model QDRO language and pre-approval process early — plans can take time to review a draft order, and getting it right the first time avoids a second round of court approval.
4. Don't withdraw funds from any retirement account to “settle up” before the order is finalized; a direct transfer under a qualified order preserves tax treatment that a manual withdrawal does not.
5. Separate the two questions explicitly in settlement talks: how much of the account is marital property (a valuation question), and what percentage of that marital share each spouse receives (an award question governed by your state's property law).

Estimate Your Total Divorce Costs

Retirement accounts are often the largest asset in a divorce, but they're rarely the only cost. Use our free calculator to see a personalized estimate based on your situation.

Frequently Asked Questions

Q: Do I need a QDRO to divide an IRA in divorce?
A: No. IRAs aren't governed by ERISA, so they use a “transfer incident to divorce” under IRC § 408(d)(6) instead — a direct custodian-to-custodian transfer based on the divorce decree, not a QDRO.

Q: Does my spouse automatically get half my 401k in a divorce?
A: Only the portion contributed during the marriage is on the table at all, and even then, whether it's split 50/50 depends on your state. Community-property states like California and Texas generally split the marital share equally; equitable-distribution states divide it based on fairness factors, which can be an uneven split.

Q: What happens if I cash out my 401k during the divorce?
A: A distribution paid to a spouse under a properly qualified QDRO is exempt from the 10% early-withdrawal penalty (though still taxed as income). But if you withdraw funds yourself outside of that process, ordinary early-withdrawal tax rules apply in full, and the withdrawal may not even count toward satisfying the QDRO.

Q: How is a pension divided differently from a 401(k)?
A: A pension pays a future income stream, so most states use a coverture, or “time rule,” fraction — marital years of service divided by total service. A 401(k) has an actual balance, so most states trace contributions and investment gains on the marital slice instead of using a coverture fraction.

Q: Is my premarital 401k balance protected in a divorce?
A: Generally yes, along with its growth, as long as you can trace it separately from marital contributions. Pennsylvania is a notable exception: growth on separate property during the marriage, including retirement accounts, is treated as marital property there.

Q: Are federal pensions or military retired pay divided with a QDRO?
A: No. Federal employee pensions (FERS/CSRS) require a Court Order Acceptable for Processing (COAP) under OPM's rules, and military retired pay is divided under a state court order that complies with the Uniformed Services Former Spouses' Protection Act (USFSPA) — not a standard ERISA-style QDRO.

Follow Through on the Transfer

Get the plan’s requirements early and make sure someone is responsible for preparing, submitting, and following up on the transfer documents. A signed settlement is not the end of the process. Review other financial settlement mistakesbefore treating retirement balances as interchangeable with cash.