@tuxedorose wrote:
3. but that begs a more fundamental question... could the amt the irs is asking me for be solely due to the fact that i filed it late?
Yes. The penalty is $210 for each month or part of a month the failure [late filing] continues, multiplied by the total number of persons who were partners in the partnership.
See https://www.irs.gov/instructions/i1065#idm140377965599312
