Hi. Company started 3 new welfare plans effective 1/1/2019. Extensions were filed timely, but it was just discovered that the wrong sponsor/EIN was used on all three. The Sponsor/EIN of our existing plan (501) was copied over and not corrected when the extensions were filed. The correct plan numbers were used on the extensions (502/503/504).
I am ready to file the 5500SFs, but unsure how to fix this error. Should I go ahead and file with the wrong EIN and then amend with the correct EIN? Or should I file with the correct EIN and wait for the late filing letter? I hesitate to use line 4 since there are no previous returns/reports filed. Other options?
Thank you!