Four entities are in same controlled group/affiliated services group.
3 of the entities participate in one fully insured wrap welfare benefit plan (medical,dental, premium only plan). All insurance contracts for that plan are signed by the plan sponsor (i.e., one of the 3 entities). Since this plan had 140 participants at start of plan year, my understanding is that we will need to file Form 5500 for it.
The remaining entity has its own separate fully insured wrap welfare benefit plan (medical, dental, premium only plan ). This entity is the plan sponsor and all insurance contracts are signed by it. There are only 22 participants at start of plan year. Does a 5500 have to be filed for this plan too, or is a 5500 not required for this plan until the plan reaches 100 participant threshold at start of another plan year?
Related question: For annual discrimination testing, do you have to aggregate all the participants from both plans together or can you test separately? Thank you for any input .