Form 1042-T: An Annotated Paper Transmittal Example

The IRS about page identifies T as the form used to transmit paper Forms 1042-S. Do not create a T for an electronic S submission. This example assumes the withholding agent's filing-method review permits paper.

It also assumes the underlying S records, their chapter and status codes, and the required grouping have been reviewed. The annotations explain where values come from; they do not determine treaty eligibility, withholding rates or recipient classification.

For another reporting year, obtain the applicable final form and instructions before using the field map. The visible example year is 2025, even though these sources were checked in 2026. Do not relabel an old form by changing only its heading.

The form instructions distinguish the agent's two status codes from the single chapter indicator on line 1a. Completing a chapter 4 group does not mean omitting the agent's chapter 3 status code.

Line 2 comes from the attached S box 2 gross-income amounts. Line 3 comes from the total of attached S boxes 10 plus 11. Use line 3a for the chapter 4 group or line 3b for the chapter 3 group, and do not complete both.

The FINAL indicator is a separate factual determination about additional S filing requirements for the year, including amended and electronic forms under the 2025 instructions. It is not simply a marker that the team has reached the end of today's print queue.

The signature area contains signature, title, date and daytime phone fields. The appropriate signer must review the completed transmittal and accompanying documents. A training worksheet or typed reviewer name should not be treated as an actual signature or completed approval.

Fictional 2025 example. Cedar Reporting Entity has two reviewed, original, non-pro-rata chapter 4 statements in one permitted paper group. Neither special line 1e nor line 1f applies. The sample does not supply real taxpayer identifiers or a signature.

The field map gives line 1a = 4, line 1b = original and line 1d = 2. Line 2 is $4,000 + $6,000 = $10,000. Line 3a is $750 + $50 = $800. Line 3b is not completed.

The $800 is a sum of supplied, reviewed statement fields, not a withholding-rate calculation. The agent's identity and both status codes must come from its actual reviewed master record. The FINAL and signature fields require their own factual review before an actual form could be completed.

Take each completed T field and point to its source. The count should point to the manifest and actual attachments, the amounts to the specified S columns, and the agent identity to the related forms. A field with no source reference needs investigation.

Check that the two statements in the example still match the current manifest after any revisions. If one is replaced, moved to another type or removed, refresh the corresponding count and amounts. A previously correct cover sheet may no longer describe the new packet.

Inspect the physical output for legibility and completeness. Follow the official instruction to return the entire transmittal page, with the proper Copy A attachments. Keep the learning diagram separate from the actual IRS form sent.

Retain the worksheet, official T copy, S copies, manifest and actual review evidence together. The diagram can explain the source relationships, while the official completed form preserves what the team actually used.

The 2025 T instructions also state that T does not replace the separate Form 1042 obligation and identify when attached S changes require an amended Form 1042. Keep that review in the record if applicable, rather than assuming that a cover-sheet total updates the annual return.

The download gives a field-by-field source index for repeating this exercise with your own permitted paper packet. It helps a reviewer locate support quickly without presenting the fictional example as a filing-ready document.