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MFT-CD 13 has to be calendar year with Reference Number 628.›Section 40 - Doc Code 51 Only

Section 40 - Field Requirements - Fields A through Z

Internal Revenue Manual Part 3. Submission Processing · 2026-10-03 edition · updated 2026-10-04 · United States

If there is a field within Section 40 that is not valid for the MFT being processed, the individual field will asterisk. Use the following chart to validate the MFT and Section 40 field presence.

Section 40 and MFT Code Table

Field

MFT Code

40-A

01, 11, 16

40-B

01, 11, 14, 16

40-C

01, 09, 11, 14

40-D

01, 09, 11, 14

40-E

01, 14

40-F

01, 14

40-G

01, 11, 14, 16

40-H

01, 11, 14

40-I

01

40-J

01

40-K

01,14

40-L

01

40-M

01, 11, 14

40-N

01, 09, 11, 14

40-O

01, 09, 11, 14

40-P

01, 09, 11, 14

40-Q

01, 09, 11, 14

40-R

01,14

40-S

01, 11, 14,16

40-T

01,14

40-U

01,14

40-V

01,14

40-W

01,14

40-X

16

40-Y

12

40-Z

09

If Section 40 is present, the MFT must be 01, 09, 11, 12, 14 or 16 on the Raw Data Run. It is not required on the correction run.

If the input document is a Form 3413 and the tax class is "1" , this section should be present. If the section is not present or the required elements in the section are not present, review the input document and any attachments for the missing data.

If the required data is found, enter the data on the register using Action Code 6.

If the data is not found, enter Action Code 7 to the left of section 01.

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