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MFT-CD 13 has to be calendar year with Reference Number 628.

Reminder:

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

This table matches the MFT/REF-NUM/TAX-PRD CONSISTENCY TABLE FOR DP-ADJUSTMENTS (FSP NO.: 1.05.19.01).

The following Footnote Legends Table provides information on Reference Numbers contained in the above-referenced MFT-Reference Number-Doc Code Table.

FOOTNOTE LEGENDS FOR THE ABOVE MFT REFERENCE NUMBER AND DOC CODE TABLE

REFERENCE NUMBERS

LEGEND/DESCRIPTIONS

686 *

DOC Code 52 will be valid for Reference Number 686 for 200101 processing.

689 **

Reference Number 689 valid only with TC 240

678 ***

Reference Number 678 is valid for calendar year Tax Periods 198512 and subsequent. It must be Month 12. It is invalid for amounts greater than $50,000. If any of these requirements are not met, Fields 01-D (Tax Period), Field 01-M (Reference Number), and Field 01-N (Reference Number Amount) will appear invalid (for example, in "error" ).

692 ****

When Reference Number 692 is present with MFT 35: (1) it’s only valid for Tax Period 201812 and prior; (2) Invalid for Tax Years 201912 and subsequent, and (3) Transaction Codes TC-240 or TC-241 TC-290 or TC-291 must be present. If any of these requirements are not met, Fields 01-D, 01-M and 01-N will appear invalid (for example, in "error" .

The following "bullets" provide other information on items contained in these instructions and the MFT-REFERENCE-NUMBER-DOC CODE Table.

IF Field 01-M (Reference Number) is 680, 681, 682, 685, 686, or 689, then Transaction Code (TC) field(s) must contain either TC-290, 294, 298, 300, 304, 308, or 402; or TC-291, 295, 299, 301, or 309 must appear in the correct TC field in Sections 02-19. (TC 291, 295, 299, 301, or 309). They may appear in Section 02-19, but are not needed. (Their associated Transaction Amounts must be negative.)

IF NOT, Field 01-D (Tax Period), Field 0 1-M (Reference Number), Field 01-N (Reference Number Amount) or the correct Transaction Code (TC) and Amount Fields in Sections 02-19 will display asterisks (*) and appear "invalid" (for example, in "error" ).

CORRECTION PROCEDURES (Field 01-M):

Compare the document and the register.

If the Reference Number is invalid or was transcribed incorrectly, correct with Action Code 6.

If the document was correctly transcribed, but the Reference Number (Field 01-M) or Reference Number Amount (Field 01-N) is missing, reject the record with Action Code 3.

Attach Form 4227, notating (depending on the missing item), Reference Number (or Reference Number Amount) is missing..

Return to Accounting (for contact with the originator for research and/or correction).

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