Note:
Internal Revenue Manual Part 21. Customer Account Services · 2026-10-03 edition · updated 2026-10-04 · United States
Do not include envelopes or other shipping material.
• Be sure to copy both sides of each page if the pages are double sided.• Make sure the numbers written on the original are clear and legible on the copies and are not cut off. You may need to write them in or go over them in pen if they cannot be read.
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