Using the E-File Magic 3921 software you can print, mail, and e-File your 3921 forms with ease. You pay only for e-File Services(required), and optionally print and mail services. This makes your year end reporting requirements even simpler than ever. Just import or manually enter your data into our software program, validate, and transmit your data for processing. We do the rest and notify you of our progress every step of the way!