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Section 101. Schedule K-1 Processing›3.0.101 Schedule K-1 Processing›Note:

Section 16TIN - Payer TIN

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

Description - Field 16TIN is in Part I of the return.

Valid characters are numeric.

Invalid Condition - Field 16TIN generates as a field error when any of the following conditions are present:

It is not numeric.

It is less than nine characters.

Correction Procedures:

MeF - Correct all coding and transcription errors. If TIN is not present, research using the name line.

If

Then

There is a match

Enter TIN from research.

A correct number cannot be determined

Enter the number nine, (9) times.

Get a plain-English answer with a citation back to this text.

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▸Contents — Internal Revenue Manual Part 3. Submission Processing

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