MFT-CD 13 has to be calendar year with Reference Number 628.
Note:
Internal Revenue Manual Part 3. Submission Processing · 2026-10-03 edition · updated 2026-10-04 · United States
Field 40-S is positive and negative for Form 3552 ONLY.
Field 40-T--Special Addition to Federal Income Tax (Form 941 and Form 944):
This information is found under Item T (Section 40), Page 2 (Form 3413); also, Line 14, Page 1 (Form 3552):
This field is valid for MFT 01 and 14.
If invalid on another MFT, delete Field 40-T.
Field 40-U---Special Additions to Soc. Sec. and Med. Tax (Form 941 and Form 944):
This information is found under Item U (Section 40), Page 2 (Form 3413); also, Line 15, Page 1 (Form 3552):
This field is valid for MFT 01 and 14.
If invalid on another MFT, delete Field 40-U.
Field 40-V---Total Income Tax Withheld from Wages (Form 941 and Form 944) posted after 12/31/2004:
This information is found under Item V (Section 40), Page 2 (Form 3413); also, Line 16, Page 1 (Form 3552).
This field is valid for MFT 01 and 14.
If invalid on another MFT, delete Field 40-V.
Field 40-W---Tips Deemed Wages (Sec. 3121q):
This information is found under Item W (Section 40), Page 2 (Form 3413); also, Line 17, Page 1 (Form 3552):
This field is valid for MFT 01 and 14
If invalid on another MFT, delete Field 40-W.
Field 40-X---Total Backup Withholding - Adjustment (Form 945):
This information is found under Item X (Section 40), Page 2 (Form 3413); also, Line 18, Page 1 (Form 3552):
This field is valid for MFT 16.
If invalid on another MFT, delete Field 40-X.
Field 40-Y---Gross Income Paid (Form 1042):
This information is found under Item Y (Section 40), Page 2 (Form 3413); also, Line 19, Page 1 (Form 3552):
This field is valid for MFT 12
If invalid on another MFT, delete Field 40-Y.
Field 40-Z---RR Retirement Tax Adjustment (Form CT-1):
This information is found under Item Z (Section 40), Page 2 (Form 3413); also, Line 20, Page 1 (Form 3552).
This field is valid for MFT 09.
This field must be blank for all other MFTs. If invalid on another MFT, delete Field 40-Z.
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