Health Benefits: W-2 Reporting for Same-Sex Couples and ... - Nossaman If the employee is not claiming that a same-sex spouse, registered domestic partner, or child is a "dependent," then the reporting on the W-2 for health benefits to that person should be as follows: The entire cost of the health benefits, including both the non-taxable portion and the "imputed income" portion, should be reported in Box 12 with ...