It’s difficult to determine the exact size of a form that will fail or time out during delivery, since that is contingent on the internet speed, firewalls, and a myriad of other factors. Because of these variable factors, it is difficult to pinpoint the maximum eFiling size possible in Essential Forms.
As a rule of thumb, we suggest users scan attached documents between 100-150 DPI in black and white (no color). Each page should be about 150KB per page in size. We recommend keeping the file size down below 10MB if possible. We’ve had users successfully eFile 10-12MB eFilings after a long duration, sometimes up to 10 minutes, as the pieces of paper jump across the screen and the document finally does go through.