MFT-CD 13 has to be calendar year with Reference Number 628.
Sections 30 Through 33 (Valid only for Form 3413)
Internal Revenue Manual Part 3. Submission Processing · 2026-10-03 edition · updated 2026-10-04 · United States
Sections in this part
This section provides descriptions of the fields and correction procedures for Section 30 through 33 (Fields A through I) of the register.
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