Employee vs. Employer Contributions
401(k) plans consist of two main types of contributions – employee deferrals and employer matches or profit-sharing contributions. In many divorces, only the funds accrued during the marriage are subject to division. But it’s not enough to just divide the account balance without considering who contributed what and when.
Employer contributions may be subject to separate vesting schedules. If your spouse hasn’t been with the employer long enough, a portion of those employer contributions may not be vested and could be forfeited after divorce. Your QDRO must account for this so you don’t end up with less than you thought.

