Preparing a Late Filing: Use One Working File for Each Tax Year

The practical answer

Late-filing preparation often begins with a mixed folder covering several periods. Separate the entity records, transactions, forms, and submission history by tax year before deciding what belongs in each packet, so that correcting one year's file does not obscure another year's open questions. A foreign-owned U.S. DE uses the tax year its owner uses for U.S. tax filing. If the owner does not have such a tax year, the DE uses a calendar year.^{[1, p.1] [2, p.1] [3, p.1] [4, p.1] [5, p.2] [5, p.3]}

Scope and the records behind the answer

The discussion follows the entity, form and transaction conditions identified below. The same label on a different form can have a different purpose. Keep the relevant entity and reporting period visible while you compare the requirements, and treat each stated exception as part of the rule rather than an optional footnote.

Official sources checked: 2026-11-09. Annual tax-year forms and continuously revised forms are identified separately in the references.

A side-by-side preparation table

Work through the official requirements

Form1120 year 2022

The official 2022 Form 1120 identifies calendar year 2022 or a tax year beginning in 2022.^{[1, p.1]}

This applies when: Annual Form 1120 tax year only; continuous Form 5472 revision applicability must be checked separately.

Form1120 year 2023

The official 2023 Form 1120 identifies calendar year 2023 or a tax year beginning in 2023.^{[2, p.1]}

This applies when: Annual Form 1120 tax year only; continuous Form 5472 revision applicability must be checked separately.

Form1120 year 2024

The official 2024 Form 1120 identifies calendar year 2024 or a tax year beginning in 2024.^{[3, p.1]}

This applies when: Annual Form 1120 tax year only; continuous Form 5472 revision applicability must be checked separately.

Form 5472 continuous revision 2021

The archived Form 5472 is marked Rev. December2021 and separately provides blanks for the reporting corporation’s tax year.^{[4, p.1]}

This applies when: A revision date is not an annual-tax-year label; do not infer applicability to a particular delinquent year solely from the filename.

De tax year

A foreign-owned U.S. DE uses the tax year its owner uses for U.S. tax filing. If the owner does not have such a tax year, the DE uses a calendar year.^{[5, p.2]}

De proforma required

A foreign-owned U.S. DE subject to Form 5472 filing attaches Form 5472 to a pro forma Form 1120 and files by the Form 1120 due date, including a valid extension.^{[5, p.2]}

Records sufficiency

Keep permanent books and records sufficient to establish the correctness of the federal return and the treatment of related-party transactions, together with the detailed requirements of Regulations section 1.6038A-3.^{[5, p.3]}

Field/section 1g: Total number of Forms 5472 filed for the tax year

Enter the total Forms 5472 filed for the tax year, with a separate form for each related party involved in a reportable transaction.^{[6, p.1] [5, p.3]}

Separate related party form

Prepare a separate Form 5472 for each foreign or U.S. related party with which the reporting corporation had reportable transactions. Item 1g is the total number of Forms 5472 for that tax year.^{[5, p.3]}

An illustrative preparation scenario

In this hypothetical preparation example, an owner provides bank statements from several years alongside an undated draft return. The preparer creates a separate working file for each relevant period, labels which evidence belongs to which year, and identifies missing pieces before selecting forms or assembling any overdue packet. The preparer checks three points: Which tax year does each record concern? What was previously filed for that period? Which forms and missing evidence require year-specific review? The file remains a working comparison until the relevant facts and applicable instructions have been checked together. No agency outcome is assumed.^{[1, p.1] [2, p.1] [3, p.1] [4, p.1] [5, p.2] [5, p.3]}

This is a planning illustration, not a statement that a particular filing has been accepted or that an entity qualifies for a tax result. Use the source-backed distinctions above to decide what information still needs to be established before a form is completed.

A review sequence you can actually use

1. Which tax year does each record concern?
2. What was previously filed for that period?
3. Which forms and missing evidence require year-specific review?

Write down the answer and the record that supports it, rather than marking a question complete because a field contains text. When two records disagree, identify whether the difference concerns the entity, an individual, the reporting period or the type of change. That makes the remaining question specific enough to resolve against the relevant instruction.

Keep the scope of a preparation service separate from the government requirement. A service intake question may gather information for a workflow; it does not create an exception, extend a deadline or determine whether a transaction is reportable. The cited government material remains the basis for those conclusions.

Questions to settle before moving forward

How should I check form1120 year 2024?

The official 2024 Form 1120 identifies calendar year 2024 or a tax year beginning in 2024. Annual Form 1120 tax year only; continuous Form 5472 revision applicability must be checked separately.^{[3, p.1]}

How should I check form 5472 continuous revision 2021?

The archived Form 5472 is marked Rev. December2021 and separately provides blanks for the reporting corporation’s tax year. A revision date is not an annual-tax-year label; do not infer applicability to a particular delinquent year solely from the filename.^{[4, p.1]}

How should I check de tax year?

A foreign-owned U.S. DE uses the tax year its owner uses for U.S. tax filing. If the owner does not have such a tax year, the DE uses a calendar year. ^{[5, p.2]}

How should I check de proforma required?

A foreign-owned U.S. DE subject to Form 5472 filing attaches Form 5472 to a pro forma Form 1120 and files by the Form 1120 due date, including a valid extension. ^{[5, p.2]}

Official sources and versions

1. 2022 Form 1120
2. 2023 Form 1120
3. 2024 Form 1120
4. Form 5472 (Rev. December 2021) — December 2021
5. Instructions for Form 5472 (Rev. December 2024) — Rev. December 2024
6. Form 5472 (Rev. December 2023) — Rev. December 2023

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