When a marriage ends, retirement assets are often the largest financial stake on the table. And according to a March 2026 GAO report on spousal protections in retirement plans, the period surrounding a divorce is when a spouse is most exposed to losing retirement funds without any legal recourse — and least equipped to fight back. The Window of Vulnerability Because most 401(k) plans require no spousal consent to remove funds, a participant who anticipates divorce can — legally, under current federal law — liquidate a retirement account before the divorce is finalized and the assets are subject to division.