• Fold Forms 1096, 1098, 1099, or 5498 mailed to the IRS. Mail these forms flat in an ap
Internal Revenue Bulletin 2004-41 · 2026-10-03 edition · updated 2026-10-04 · United States
propriately sized envelope or box. Folded documents cannot be readily moved through the machine used in IRS processing.
Get a plain-English answer with a citation back to this text.
Ask AI about this code