What is a non-filer? A non-filer is defined as a person (individual, corporation, estate, trust or partnership) who has met certain thresholds but has yet to file a tax return by the statutory or extended due date. As enrolled agents, we have to figure out how to help these people get compliant. Aft er all, besides making sure our clients do not pay more in taxes than they are required to, part of our job is to make sure that they are complia... Jeffrey A. Schneider, EA