Why post-separation enhancements are still shared

I often hear the same question: "Why do I have to share my ex-spouse's pension enhancements that happened after we separated? Isn't that my separate property?" It's a common point of confusion — and frustration. The truth is, California law treats pensions as community property built on a "marital foundation," meaning enhancements like early retirement incentives, cost-of-living adjustments, or rank promotions can still be divided even when they occur post-separation. Here's the case law that shapes the rule.

The basics: pensions as community property

California is a community property state: assets acquired from the date of marriage to the date of separation are generally split 50/50. Pensions fit because they are deferred compensation for work performed during the marriage. But courts don't view pensions as static — they're dynamic assets that grow over time, and if the right to the pension (and its potential enhancements) was earned at least in part during the marriage, the non-employee spouse has a stake in those future benefits.

In re Marriage of Brown (1976): pensions are property

Before Brown, non-vested pensions were treated as mere "expectancies" under French v. French (1941). The California Supreme Court overturned that in In re Marriage of Brown (1976) 15 Cal.3d 838, holding that pension rights — vested or not — are property subject to division if they accrue during marriage. Pensions represent deferred compensation for marital efforts, and Brown laid the groundwork for viewing them as a bundle of rights earned over time: enhancements aren't entirely new benefits, but derivatives of the marital service that built the pension.

In re Marriage of Judd (1977): the time rule

Judd (1977) 68 Cal.App.3d 515 introduced the formula courts use to apportion pensions: community share = years of service during marriage ÷ total years of service until retirement, applied to the total benefit and divided in half. Each year of service gets equal weight, recognizing that early years — often during marriage — lay the foundation for later growth. If you worked 10 years during marriage and 10 more after separation, the community interest is 50% of the total pension, and enhancements boosting the final payout are shared proportionally.

In re Marriage of Lehman (1998): the cornerstone on enhancements

In Lehman (1998) 18 Cal.4th 169, the husband received an early retirement incentive after divorce — added service credits and a higher payout — and argued these were separate property since they came post-separation. The Supreme Court disagreed: the non-employee spouse owns a community interest in enhanced benefits if they derive from rights accrued during marriage. Enhancements are an evolution of the original pension right, not new property, and the court applied the time rule while excluding fictive "added years" from the denominator to avoid diluting the community share. This is the "marital foundation" theory: the marriage's contributions enable later enhancements.

Refinements: Gray (2007) and Belthius (2023)

In re Marriage of Gray (2007) 155 Cal.App.4th 504 clarified that the time rule is not universal — in that union-pension case, applying it across two ex-spouses would have left Mr. Gray with less than half of his own pension, and the court found the time rule inappropriate given how the pension credits were earned. Most recently, In re Marriage of Belthius (2023) 88 Cal.App.5th 1, involving an LAPD pension and a QDRO dispute, reversed a trial court's denial of the wife's proposed QDRO and reaffirmed Lehman: post-separation rank promotions and enhancements are community property to the extent they build on marital foundations — and the case highlights how much precise QDRO language matters in capturing those benefits without overreach.

What this means for your case

If you're the employee spouse, understand that raises and promotions after separation are not automatically all yours — the community shares in what grew on the marital foundation. If you're the non-employee spouse, choosing a shared-interest division (rather than a frozen segregated account) is usually what preserves your stake in that growth — see our CalPERS Model A vs. Model B article for how this plays out in California's largest public system. Either way, the wording of the order determines whether the rule actually reaches your benefits.