Payments of Interest Income. This 4-part laser set includes preprinted Copy A (federal, red scannable), Copy B (recipient) and two Copy C (payer and state). All 8.5" x 11" sheets are printed on 20# laser paper 3-up with a .5" side perforation. Print each copy as a batch. Order the quantity equal to the number of employees for which you need to file, you'll get all the necessary forms. Mail payer copies in a batch to the IRS. Mail recipient copies in envelope #99DWENV05 or #99SWENV05 located on this page in Accessories.