Dividing retirement accounts: 401(k)s, pensions, and QDROs

For many couples, retirement accounts are worth more than the house — and they're the asset most often botched in self-filed divorces, because dividing them takes one more document than people expect.

The marital share

In general, what was earned or contributed during the marriage is marital property, and what a spouse brought in beforehand (plus, in many states, its separate growth) stays theirs. A 401(k) started before the wedding is commonly part separate, part marital. Account statements from around the marriage date are the evidence that makes this split calm instead of contested — dig them out early.

What a QDRO is, and why the plan needs one

Your decree can say "the 401(k) is divided equally" — and nothing will happen. Employer plans like 401(k)s and pensions are governed by federal law, and the plan administrator can only split an account when they receive a qualified domestic relations order (QDRO): a separate court order, written to the plan's specifications, naming the former spouse as an "alternate payee." The usual sequence: the QDRO is drafted (many plans publish a model form), the administrator pre-approves it, the judge signs it, and the plan implements it. Done this way, the receiving spouse can usually roll their share into their own retirement account without the taxes and penalties an ordinary early withdrawal would trigger.

IRAs are different

IRAs don't use QDROs. They're divided under the decree itself through a "transfer incident to divorce": you send the decree and the custodian's own form to the IRA company, and the funds move directly into an IRA in the other spouse's name, untaxed if done as a direct transfer. Cashing out and handing over a check instead is the classic expensive mistake.

Where do-it-yourself goes wrong

• The decree divides the account but nobody ever drafts the QDRO — sometimes discovered at retirement, decades later, when records and goodwill are gone.
• Pension orders that skip survivor benefits, so payments stop entirely if the employee spouse dies first.
• Vague language ("half the pension") with no valuation date and no treatment of gains and losses.
• Withdrawing money to "settle up," triggering avoidable taxes.

This is the one corner of an agreed divorce where paying a professional is normal even for determined self-filers: QDRO specialists and attorneys prepare these for flat fees, and the plan administrator will tell you what their document must contain. Get the decree language right, then get the QDRO signed and delivered — both, not either.