QDRO in 2026: How a 401(k) Actually Gets Split, and What Reaches You

The most expensive misunderstanding in a divorce settlement is thinking the decree splits the retirement account. It does not. Federal law bars a 401(k) plan from assigning benefits to a former spouse, and the decree is not addressed to the plan. What moves the money is a separate court order, drafted to the plan's specifications and approved by the plan itself.

Three numbers decide the outcome: how much of the account counts as marital, how that part is split, and what the receiving spouse does with the share once it is free. Everything below works one case end to end. State law decides the property questions, and none of this is legal advice.

The decree does not move the money

ERISA §206(d) is an anti-alienation rule: plan benefits cannot be assigned or alienated. Subsection (d)(3) carves out one exception — a domestic relations order meeting the definition in Internal Revenue Code §414(p). Meet it and the order is "qualified": a QDRO. Miss it and the plan rejects the order and keeps paying the employee.

A qualified order has to name both people and the plan, and state the amount or percentage, the number of payments or the period, and the valuation date. It cannot demand a benefit the plan does not offer, which is why most large plans publish a model order.

The costs are modest against the sums: $500 to $2,000 to draft, plus a plan processing fee that often runs $300 to $1,200. The timing risk is larger than the cost. Until the order is qualified the account is legally the employee's alone, and a plan loan, a hardship withdrawal, a market drop or the participant's death can all shrink or erase the share.

One drafting detail decides thousands of dollars: whether the share is adjusted for gains and losses between the valuation date and the transfer date. A flat dollar amount with no earnings adjustment hands a rising market entirely to the employee, and takes a falling one entirely out of what is left for them.

Which part of the account is on the table

Only the marital part is normally divisible: what was built between the wedding and the separation or filing date, including the growth on it. Money already in the account on the wedding day, and the growth on it, is usually separate property.

Take an account worth $280,000 today with $60,000 in it on the wedding day. If that $60,000 would have grown to roughly $110,000 on its own, the marital part is $170,000 — about 61% of the balance. Split 50/50, the other spouse's share is $85,000 and the employee keeps $195,000 in total. Change that one assumption and the answer moves a long way: if the whole account were marital, the same 50/50 split sends $140,000. That is why the marital percentage is worth settling before the split percentage, and why it helps to see what different marital shares do to both sides rather than arguing over the headline balance.

Nine community-property states — Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington and Wisconsin — start from 50/50. The rest divide "equitably", which often lands near half but moves for a long marriage, a large income gap or one spouse keeping the house.

What the receiving spouse actually walks away with

The tax code treats a spouse or former spouse alternate payee as the distributee (IRC §402(e)(1)(A)), so the tax follows the money rather than staying with the employee. What happens next depends on the route the share takes:

That tax figure comes from the 2026 single brackets and the $16,100 standard deduction: $42,000 of wages plus $85,000 puts taxable income at $110,900, with the top slice in the 24% band. The plan withheld $17,000 against a $16,354 bill, so about $650 comes back at filing — withholding is close, but it is not a settlement of the tax.

The penalty line is the one that gets missed, and it is worth a lot. A distribution paid directly from the plan to the alternate payee under a QDRO carries no 10% additional tax, at any age. That window is tied to the QDRO payout itself, not to the money. Roll the $85,000 into an IRA first and withdraw later under 59½, and the penalty is back: $8,500 on the same $85,000. The order of operations, not the amount, is what costs that. Where part of a share is needed as cash, running the cash and rollover figures side by side shows what each route leaves.

An IRA is a different animal

An IRA is not an ERISA plan and has no anti-alienation rule to work around, so it needs no QDRO. Dividing one runs under IRC §408(d)(6) as a transfer incident to divorce: move an IRA interest to a spouse or former spouse under a divorce or separation instrument and it is not a taxable event; the receiving spouse's half becomes their own IRA.

Two traps sit inside that simplicity. It must be done as a direct trustee-to-trustee transfer or retitling — a withdrawal-and-handover is a taxable distribution to the original owner. And there is no penalty exception: the §72(t)(2)(C) carve-out belongs to QDROs and plan distributions, so a former spouse who receives an IRA under §408(d)(6) and takes cash before 59½ pays the ordinary 10%.

Not every employer plan uses the word QDRO, either. A 403(b) and a governmental 457(b) generally do. The federal Thrift Savings Plan uses its own retirement benefits court order, and CSRS and FERS annuities are divided by a court order acceptable for processing filed with OPM — each rejected if written to the wrong standard.

What it costs to rebuild either side

The 2026 contribution limits make the asymmetry concrete. The employee who hands over $140,000 from an all-marital account cannot simply put it back: the elective deferral limit is $24,500, so replacing it takes nearly six years of maximum contributions, or just under two even if employer money fills the §415(c) all-sources ceiling of $72,000 every year. For the receiving spouse the IRA limit is $7,500, so an $85,000 QDRO rollover is more than eleven years of maximum IRA funding arriving at once — worth weighing against the rest of the settlement before trading it away.

That is also why swapping the 401(k) for the house needs after-tax comparison, not sticker comparison: $100,000 of pre-tax 401(k) is worth about $76,000 to someone in the 24% bracket, while $100,000 of home equity is usually tax-free on sale. And post-2018 alimony is not taxable income to the recipient and therefore not compensation for IRA purposes, so the monthly support figure cannot rebuild a retirement account the way wages can.

FAQ

The decree says I get half the 401(k). Do I still need a QDRO?

Yes. ERISA §206(d)(3) bars the plan from paying anyone but the participant except under an order qualifying under IRC §414(p), and a decree is generally neither addressed to the plan nor drafted to its requirements. Budget $500 to $2,000 to draft the order and $300 to $1,200 for the plan's fee. Most plans will pre-approve a draft before it goes to the judge.

Can I take cash out of my share without the 10% penalty?

If it is paid directly from the plan to you as the alternate payee under the QDRO, yes — IRC §72(t)(2)(C) exempts it from the 10% additional tax at any age. Ordinary income tax still applies and the plan must withhold 20% under IRC §3405. The exception does not travel: roll the money to an IRA first, withdraw later under 59½, and the 10% applies — $8,500 on an $85,000 share.

What if the employee just withdraws the money and hands it over?

That is the expensive version. Without a QDRO the distribution is taxed to the participant, and §72(t)(2)(C) does not help because it protects the alternate payee, not the employee. On $85,000 at a 24% marginal rate that is roughly $20,400 of tax plus an $8,500 penalty under 59½ — about $28,900 — and the former spouse still needs their $85,000. Whether a QDRO can be entered after the fact depends on the decree and on state law.

Does the same order divide my ex's IRA?

No. An IRA is divided as a transfer incident to divorce under IRC §408(d)(6), which needs the divorce or separation instrument and a trustee-to-trustee transfer, not a QDRO. Getting it wrong is costly in either direction: a QDRO sent to an IRA custodian accomplishes nothing, and a cash withdrawal "to pay the settlement" is a taxable distribution to the original owner, with the 10% penalty under 59½ and no QDRO exception available.

Sources

• IRS, Retirement topics — QDRO — https://www.irs.gov/retirement-plans/plan-participant-employee/retirement-topics-qdro-qualified-domestic-relations-order
• U.S. Department of Labor, EBSA, QDROs: The Division of Retirement Benefits Through Qualified Domestic Relations Orders — https://www.dol.gov/agencies/ebsa/about-ebsa/our-activities/resource-center/publications/qdros
• ERISA §206(d)(3) and IRC §414(p), §402(e)(1)(A), §72(t)(2)(C), §3405 and §408(d)(6)
• IRS Publications 575 (Pension and Annuity Income) and 504 (Divorced or Separated Individuals)
• IRS Notice 2025-67 and Rev. Proc. 2025-32 — 2026 limits, brackets and standard deduction
• tsp.gov on retirement benefits court orders; opm.gov on court orders acceptable for processing

General information about how these rules work, not legal or tax advice. What counts as marital property, and how it is divided, is governed by state law and by the plan's own document; the figures above are worked arithmetic for one example, not a prediction of any outcome.