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I paid payroll taxes for my LLC on a timely basis with no tax due, but neglected to send in the quarterly 941 forms for 1Q20 and 2Q20.  Assuming I send in the forms now, will I be penalized for submitting the 941 forms late, and can you recommend how to send in these forms (e.g., in separate envelopes for each quarter with a cover letter, no cover letter and in the same envelope as my timely Q3 filing)?