1. Determining the Marital Portion
The most common method used in dividing defined benefit plans like this one is the coverture formula. This divides the benefit based on the portion earned during the marriage. The formula usually looks like:
(Months of plan participation during the marriage ÷ Total months of plan participation) × 50%
Make sure your QDRO specifies this clearly to avoid benefit miscalculations down the road.

