@Critter The COVID extension does not apply. This is a Partnership return due on March 15th, which was before the COVID extensions (which start April 1st).
@danhenroid Yes, if not filing it could result in a penalty, have proof of mailing. Better yet, e-file before the due date (so no extension would be necessary) or use software that can e-file the extension (which gives you proof of the extension).
However, I'm puzzled at the $410 penalty. It should be $820. April 24th would incur 2 months of penalties, and assuming two Partners that would be $820 in penalties. I wonder if the IRS is being generous and applying the COVID extension to the second month.
