MFT-CD 13 has to be calendar year with Reference Number 628.›Sections 20 Through 23 - Form 3413›Correction Procedures - Sections 20 Through 23
Section 20 Through 23 - Fields A, E, and I - Transaction Codes
Internal Revenue Manual Part 3. Submission Processing · 2026-10-03 edition · updated 2026-10-04 · United States
The valid debit codes are TC 632 and TC 637.
The valid credit codes are TC 630 and TC 636.
TC 630 and TC 632 are valid only for Doc Code 51 and 52, MFT 02, 05, 08, 17, 30, 31, 33, 34, 46, 85, and 86.
TC 636 and TC 637 are valid only for Doc Code 52, MFT 02, 05, 08, 30, 31, 33, 34, 46, 85, and 86.
The transaction code fields will appear invalid, along with the appropriation code fields, if the transaction code is 630 or 636 and the appropriation code is other than 02 or the transaction code is 632 or 637 and the appropriation code are other than 03. (See Figure 3.12.21-23.)
Figure 3.12.21-23
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Compare the document with the register.
Correct any transcription errors.
If the transaction code is 630 or 636, change Field 20B/F/J to 02.
If the transaction code is 632 or 637, change Field 20B/F/J to 03.
If there is a notation on the document NOT to alter any information, reject with Action Code 3.
Prepare Form 4227 and notate "Doc not to be altered (per doc notation); validate Transaction Code and Appropriate Code"
Attach 4227 to the document and route to originator for research and correction.
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