Here’s the thing nobody warns you about: in a lot of divorces, the retirement accounts are the biggest asset on the table. Bigger than the house. Bigger than the cars. Bigger than the savings account. And somehow they’re also the part people gloss over the fastest — until a couple years later when someone realizes a $200,000 401(k) got split in a way that cost one spouse $40,000 in taxes and penalties that shouldn’t have been there.
Retirement accounts don’t split themselves. They don’t split the same way a checking account does. And every type of account — 401(k), pension, IRA, military, government — has its own paperwork and its own rules. Worth understanding before the agreement is signed, not after.
The big one: you almost certainly need a QDRO
If either spouse has a 401(k), 403(b), or a private pension, the divorce decree alone is not enough to split it. The plan administrator will not accept a divorce judgment as instructions. What they need is a separate court order called a Qualified Domestic Relations Order — a QDRO — that tells the plan exactly how much to send to the non-employee spouse and where.
A QDRO is its own document. It gets drafted (often by a specialist attorney or QDRO preparer), reviewed by the plan administrator, signed by the judge, and then submitted back to the plan. The whole process can take 60 days on the short end and well over a year on the long end. People close on their divorce, assume the retirement piece is handled, and then discover six months later that nothing has moved.
The QDRO is also what makes the split tax-free. Money transferred under a QDRO goes directly to a retirement account in the receiving spouse’s name — no income tax, no 10% early withdrawal penalty, no withholding. Without the QDRO, an attempt to move that money is treated like a regular withdrawal. Cue the surprise tax bill.
IRAs work differently — and that’s a trap of its own
IRAs do not require a QDRO. They get split through what’s called a “transfer incident to divorce,” which is essentially a direction in the divorce decree telling the IRA custodian to move a specific amount from one spouse’s IRA to the other spouse’s IRA.
Sounds easier. It is. But it has its own catch: the transfer paperwork has to specifically reference the divorce decree, and the receiving funds have to go directly into another IRA — not into a checking account. If the IRA custodian processes it as a normal distribution, the same tax-and-penalty consequences apply. Most custodians have a specific form for transfers incident to divorce. Use that form. Don’t let anyone hand you a check.
Pensions split by formula, not by check
Traditional pensions — the kind that pay a monthly amount for life starting at retirement — are different again. Most can’t hand the non-employee spouse a lump sum today. What they can do is pay the non-employee spouse a percentage of the monthly benefit when payments start, often for the rest of that person’s life.
The formula is usually based on what’s called the “marital portion” — the share of the pension earned during the years of the marriage, divided in half (or whatever the agreement specifies). A pension QDRO has to spell out: the percentage split, when payments start, whether the non-employee spouse keeps payments after the employee’s death (survivor benefits), and what happens if the employee retires early.
That last one matters more than people realize. If the employee spouse retires at 55 with a reduced benefit, the non-employee spouse’s share gets reduced too — unless the QDRO is drafted to protect against it.
Government and military rules are their own world
Federal pensions, state and local government pensions, and military retired pay all have their own division rules and their own forms. The Thrift Savings Plan (the federal 401(k)) requires a Retirement Benefits Court Order, not a QDRO. State teacher pensions often require a specific state-issued order. Military retired pay is governed by the Uniformed Services Former Spouses’ Protection Act, with its own 10-year rule for direct payment from DFAS.
If either spouse is in one of these systems, the standard QDRO template will not work. The order has to be drafted to match the specific system’s requirements. This is one of the most common places divorce attorneys quietly hand the QDRO off to a specialist.
Marital vs. separate — the line that matters
Most states only divide the portion of a retirement account that grew during the marriage. The balance someone brought into the marriage is generally separate property. The contributions made during the marriage, plus the gains on those contributions, are usually marital.
This gets complicated fast when accounts have been around for decades. If someone had $40,000 in a 401(k) when they got married and it’s worth $400,000 now, figuring out the marital portion takes account statements going back to the wedding date. Sometimes those statements no longer exist, and a financial expert has to reconstruct the math from contribution records. The further back the marriage starts, the more this matters.
Mistakes that show up over and over
- Forgetting to track gains and losses between agreement and transfer. Markets move. If the decree says “50% of the 401(k) balance as of January 1” and the transfer happens in November, somebody’s share has shifted. Most decrees specify gains and losses pro-rata. Most also don’t enforce it without follow-up.
- Missing small accounts. Old 401(k)s from former employers, Roth IRAs from a side gig, a tiny pension from a job held in your twenties. Easy to overlook. Worth a credit-bureau-style search for every account either spouse has ever had.
- Letting the QDRO sit. The divorce closes. The QDRO doesn’t. Months pass. The employee spouse retires, takes a loan, or dies, and suddenly the non-employee spouse has no leverage and no benefit. Push the QDRO through within 60 days of the final decree if at all possible.
- Mixing Roth and traditional dollars. A Roth 401(k) split has to land in a Roth IRA. Traditional dollars go to a traditional IRA. Mixing them creates a taxable event the IRS will eventually catch.
- Cashing out instead of rolling over. Even with a QDRO, the receiving spouse has a one-time window to take some or all of the money as cash without the 10% penalty (regular income tax still applies). For most people, rolling it into an IRA is the better move — but knowing the option exists matters in genuine emergencies.
What to do before the agreement is final
Make a full list of every retirement account either spouse has or has ever had. Pull current statements and statements from around the wedding date. Note the account type, the plan administrator, and the contact information for the QDRO submission. Identify which accounts will need a QDRO, which will use a transfer incident to divorce, and which fall under a government or military system with separate rules.
If a QDRO is needed, ask your attorney early whether they draft them in-house or refer them out. Get a written estimate of the timeline. Build the QDRO submission into the same calendar as the rest of the financial separation, not after it.
Lumeway’s Retirement Account Division Information Request Letter helps you gather the plan administrator details, account balances, and division-method information your attorney needs before drafting a QDRO. It pairs with the Asset & Property Inventory Worksheet and the Divorce Financial Disclosure — Information Organizer in the Divorce bundle at lumeway.co.
The marriage ends with a signature. The retirement accounts end with the right paperwork.
This post is for general informational purposes only and does not constitute legal, financial, or tax advice. QDRO requirements, marital property rules, and plan-specific procedures vary significantly by state, by retirement system, and by individual circumstance. Consult a licensed family law attorney and, where appropriate, a qualified financial advisor or QDRO specialist for guidance specific to your situation.