How do I file Form 941? Workful Support May 19, 2020 17:28 Updated Follow To file Form 941 by paper, choose the appropriate mailing address, which will depend on whether you’re sending a payment with the form. Related articles What is a fractions-of-cents adjustment? How do I file Form 940 by paper? How do I create a state form? How do I subscribe to Workful? Frequently Asked Questions Comments 0 comments Please sign in to leave a comment.