Physical separation does not automatically turn a husband or wife into a former spouse. If an IRA owner dies while the couple is living apart but still legally married, the survivor may still be a spouse for federal inherited IRA purposes. The important qualification is that “separated” can describe several legally different situations, from living in different homes to a final court decree of separate maintenance.

IRS Publication 504 makes the distinction explicit for federal tax marital status. A person who is merely separated without a final decree generally remains married. A person with a final decree of divorce or separate maintenance may be treated as unmarried, with state law determining whether the person is divorced or legally separated. Therefore, the phrase “not divorced” does not by itself settle every case.

Start by identifying what kind of separation exists

An informal separation can be as simple as spouses deciding to live apart. A written separation agreement can allocate expenses or custody without dissolving the marriage. A temporary or interlocutory court order may govern support while the case proceeds. A final decree of separate maintenance in some states can establish a legal separation with consequences for federal marital status even though the parties do not call the order a divorce.

Ask for the actual court documents, not a shorthand description. The decree’s title is useful, but its legal effect under state law matters more. Publication 504 says an interlocutory decree is not a final decree for its marital-status rule and directs taxpayers to state law to determine whether they are divorced or legally separated.

Physical separation alone generally leaves spouse status intact

If the couple was simply living apart and no final divorce or separate-maintenance decree changed their status, the surviving spouse generally remains married for federal tax purposes. That means the federal IRA analysis can proceed under the spouse rules if the survivor is also the beneficiary and satisfies the account-specific requirements.

Living apart may still affect estate litigation, support obligations, homestead rights, elective-share rights, or the practical relationship between family members, but those issues do not transform the federal definition of spouse by themselves. A custodian should not deny spouse treatment solely because the addresses differ if the marriage remained legally intact.

A final separate-maintenance decree requires closer review

The common statement “legal separation is not divorce, so you are still married” is too broad for federal tax work. Publication 504 treats a person as unmarried for the year if there is a final decree of divorce or separate maintenance, subject to state law. Some states use legal-separation orders that preserve a marital bond for certain purposes; others give a final separate-maintenance decree a status that federal rules treat as unmarried.

Because terminology varies, the estate attorney should determine what the court order did under that state’s law on the date of death. The CPA can then apply the federal retirement rule to the established marital status. Do not ask an IRA call-center employee to interpret a family-court decree from another jurisdiction.

The beneficiary form is a separate question

Even if the survivor remains legally a spouse, the survivor must still be entitled to the IRA under the beneficiary designation, custodial agreement, or applicable law. A separation agreement may require a beneficiary change, but the owner may never have submitted one. Conversely, a named separated spouse may remain on the custodian’s records despite a contractual promise to waive the account.

For IRAs, beneficiary designations often control payment, but state revocation statutes, court orders, waivers, community-property rights, and litigation can complicate the result. For employer plans, ERISA can add federal spousal protections and preemption questions. Identify whether the account is truly an IRA before relying on rules about workplace-plan spouse consent.

Do not confuse tax filing rules with every retirement-plan rule

Publication 504 is useful evidence of federal marital-status principles, but an inherited IRA claim still requires the retirement provisions in sections 401(a)(9) and 408 and their regulations. A person can face a filing-status rule, a beneficiary-contract rule, and a retirement-distribution rule in the same case. The correct result comes from applying each to the right question.

For example, a spouse may have lived apart long enough to qualify for head-of-household treatment under a special income-tax rule in some circumstances, yet that does not necessarily mean the marriage ceased to exist for every federal purpose. Conversely, a final decree can matter even though friends and family still refer to the parties as married.

What if divorce papers were filed but the owner died before the final decree?

Filing a petition ordinarily does not itself produce a final divorce. If the owner dies while the case is pending, state law determines the marital status at death and what happens to the divorce proceeding. For federal tax purposes, the absence of a final decree is important, but the estate attorney should confirm whether any state-specific event changed the status before death.

The beneficiary form must then be reviewed as of the death date. A divorce-revocation statute that would have operated upon a completed divorce may never have been triggered. A settlement agreement may contain a waiver that has independent effect. These are legal-document questions, not assumptions that can be resolved from the filing date alone.

What if the separation agreement says each spouse waives retirement benefits?

A waiver can be highly important, but whether it defeats a beneficiary designation depends on the account type, wording, governing law, and federal preemption. An IRA and an ERISA plan should not be treated as identical. The custodian or plan administrator may require a court order or legal review before paying a competing claimant.

If the survivor is both the named beneficiary and a signatory to a broad waiver, obtain legal advice before requesting a rollover. A rollover can make later recovery difficult if another claimant succeeds. The estate attorney should analyze enforceability, while the CPA waits to characterize tax consequences until entitlement is clearer.

Spousal RMD options depend on spouse status at the relevant time

The final RMD regulations give a surviving spouse special treatment because of the marital relationship to the deceased owner. If a final decree means the claimant was not the owner’s spouse at death, those spouse-only provisions may be unavailable even if the claimant remains the designated beneficiary. The person would then be analyzed under the beneficiary category that actually applies.

If the couple remained married, the ordinary spouse options can be evaluated: continued beneficiary treatment, a permitted rollover, or an election to treat a qualifying IRA as the spouse’s own. The separation itself does not create an extra RMD table or special penalty regime.

A practical document checklist for separated spouses

Gather the marriage certificate, all separation or divorce pleadings and orders, any final decree, the beneficiary designation, IRA agreement, separation agreement or marital settlement, recent account statement, and death certificate. Record the date each document became effective. If the couple lived in different states, note their domiciles and where the family-court proceeding was filed.

Then ask a family-law or estate attorney in the relevant jurisdiction one focused question: what was the parties’ legal marital status at the owner’s death, and did any agreement or order alter the survivor’s right to this IRA? Once that answer is documented, the custodian and tax adviser can apply the correct inherited IRA path.

Do not let a label decide a high-value account

Families commonly say “they were legally separated” when they mean the couple lived apart, and others say “they were still married” even after a court entered a final separate-maintenance decree. Both shorthand phrases can be misleading. The federal tax rule depends on the legal status, not family vocabulary.

The safe approach is to identify the decree, determine its state-law effect, verify the beneficiary designation, and only then choose a spouse rollover or beneficiary election. That sequence protects against the two opposite mistakes: denying a valid spouse an available option, or giving spouse-only tax treatment to someone whose marital status had legally ended.

Death can stop a divorce case without resolving every financial right

When an IRA owner dies during a pending divorce, state procedure can terminate or alter the family-court case, but property settlements, temporary orders, waivers, or beneficiary designations may survive in different ways. The survivor should not assume that death simply resets the parties to an uncomplicated married-couple estate plan. Counsel should review which agreements became binding before death and which requests died with the divorce action.

This review is especially important before a spouse-only rollover. If another person or the estate has a colorable claim, moving assets into the survivor’s own IRA can make later recovery and tax reporting more complicated. Establish entitlement first, then use the federal spousal options that correspond to the marital status actually in effect.

Related Guides

This is general information, not personalized tax or legal advice — a CPA or estate attorney can confirm how this applies to your specific inherited account.