Part III. Administrative, Procedural, and Miscellaneous
Internal Revenue Bulletin 2013-5 · 2026-10-03 edition · updated 2026-10-04 · United States
26 CFR 601.602: Tax forms and instructions. (Also Part I, §§ 1, 23, 24, 25A, 32, 55, 63, 68, 132, 137, 151, 221, 2010.)
Rev. Proc. 2013–15
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