No matter the type of 1099 form filed by your business, an envelope is an absolute necessity for mailing in all returns. To assist with your tax preparation, Print E-Z offers an extensive variety of 1099 envelopes – some for specific forms and others more versatile but all meeting IRS requirements. Along with several types of 1099 forms, these envelopes can additionally accommodate W-2G, 5498, and 1098 documents. For submitting any standard or blank forms, choose from single- and double-window self-sealing envelopes with lining.