Dividing Retirement Assets: 401(k)s, Pensions & OPERS

Practice area: Property & Retirement Division Author: Agee, Clymer, Mitchell & Portman Last reviewed: July 2026 · Reading time: 8 minutes

This article is for general informational purposes only and does not constitute legal advice.

Retirement accounts are often the largest asset in a marriage after the family home, and yet they’re some of the most frequently mishandled assets in a divorce settlement. Get the mechanics wrong, and it can mean unnecessary taxes, penalties, or a permanently reduced pension — long after the divorce is final.

Here’s what to understand before you sign anything.

What counts as marital property

In Ohio, the portion of a retirement account earned during the marriage is generally treated as marital property, subject to equitable division. Contributions made before the marriage, or after a legal separation, are typically treated as separate property but separating the two requires a clear accounting of contribution dates and account growth, which isn’t always straightforward, especially for accounts held for decades.

This applies across most retirement vehicles:

  • 401(k)s and 403(b)s
  • Traditional and Roth IRAs
  • Pension plans
  • Deferred compensation and executive retirement plans
  • Public retirement systems: OPERS, STRS, SERS, and similar

Why you need a QDRO

A Qualified Domestic Relations Order (QDRO) is a separate legal order, distinct from the divorce decree itself, that instructs a retirement plan administrator how to divide an account. Without one, a plan administrator has no legal basis to transfer funds to a former spouse even if the divorce decree says they’re entitled to a share.

A properly drafted QDRO allows funds to move from one spouse’s account to the other’s without triggering:

  • Early withdrawal penalties
  • Immediate income tax liability

The receiving spouse typically rolls the funds into their own retirement account, where they remain tax-deferred until withdrawal, just as they would have been for the original account holder.

QDROs are technical documents, and small drafting errors – the wrong valuation date, an ambiguous percentage, missing survivor benefit language — can cause real financial harm years down the line. It’s worth having a QDRO independently reviewed by the plan administrator before it’s finalized, and reviewed again once approved to confirm it was implemented correctly.

Public pensions are different

Ohio’s public retirement systems — OPERS, STRS, and SERS — don’t follow federal ERISA rules the way private 401(k)s do. They have their own division procedures, their own required forms, and in some cases, restrictions on how benefits can be divided or when payments can begin. If you or your spouse participates in a public pension system, that plan’s specific division rules need to be built into the settlement from the start, not addressed as an afterthought.

Common mistakes that cost people money

  • Treating “50/50” as automatically fair, without accounting for the tax treatment of different account types — a pre-tax 401(k) and an after-tax Roth IRA of equal dollar value are not equal in real terms.
  • Delaying the QDRO after the divorce is final. If the account holder retires, dies, or changes plans before the QDRO is processed, recovering the intended share can become far more difficult.
  • Overlooking survivor benefits on a pension, which can matter significantly for a former spouse’s long-term financial security.
  • Failing to value the account as of the correct date, since growth or losses between separation and finalization can shift the actual dollar amount significantly.

For business owners, retirement accounts are often just one piece of a larger picture — see How Business Valuation Works in an Ohio Divorce for how a closely-held business gets factored in alongside accounts like these.

Frequently asked questions

Will I owe taxes on my share of my spouse’s 401(k)? Not if the transfer is handled correctly through a QDRO and rolled into your own retirement account. Taking a direct cash payout instead may trigger taxes and penalties.

Does it matter who contributed more to the account? Generally, no — retirement savings accumulated during the marriage are typically treated as a joint marital asset regardless of whose name is on the account or who made the contributions.

What if my spouse hasn’t retired yet? A QDRO can still divide an account before retirement; a “deferred” approach is also possible for certain pensions, where the former spouse receives their share once payments begin.

How long does it take to get a QDRO approved? It varies by plan, but it commonly takes several weeks to a few months between drafting, plan pre-approval, court signature, and final processing.

More from the Family Law Knowledge Center

Retirement assets deserve the same careful attention as any other major asset in your settlement. If your marital estate includes a 401(k), pension, or public retirement account, schedule a confidential consultation to make sure it’s handled correctly the first time.