---
id: object/codeunit/10042-us
type: object
title: Codeunit 10042 "IRS Reporting Period" (US)
summary: Codeunit 10042 "IRS Reporting Period" (US) in the US country layer (Microsoft.Finance.VAT.Reporting). 12 public procedures. Introduced in BC29, still in BC30.
tier: official
language: en
tags:
  - codeunit
  - us layer
versions:
  introduced: "29"
  last_changed: null
  deprecated: null
review:
  state: derived
  by: null
  at: null
  flags: []
generated:
  at: "2026-10-11T00:31:51.816Z"
  pipeline: 0.2.0
  prompts: {}
  input_hash: d621ae9c3e81f02ad6b8d297299194fcdb462df627694ff11b3ed7f51aed0ac8
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/US/IRSForms/app/src/Setup/IRSReportingPeriod.Codeunit.al
    title: src/Apps/US/IRSForms/app/src/Setup/IRSReportingPeriod.Codeunit.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
  learn: []
  objects: []
  features: []
  topics: []
  localizations:
    - localization/us
  videos: []
  posts: []
  guidelines: []
  changes:
    - change/bcapps/9868
object_type: codeunit
object_id: 10042
name: IRS Reporting Period
namespace: Microsoft.Finance.VAT.Reporting
app: IRSForms
extends: null
first_version: "29"
last_version: "30"
present_in:
  - "29"
  - "30"
changed_in: []
source_major: "29"
obsolete: null
countries: []
ms_search_form_ids: []
country: US
counts:
  fields: 0
  procedures: 21
  events: 0
  subscribers: 0
relations:
  out: 0
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
---

# Codeunit 10042 "IRS Reporting Period" (US)

> Codeunit 10042 "IRS Reporting Period" (US) in the US country layer (Microsoft.Finance.VAT.Reporting). 12 public procedures. Introduced in BC29, still in BC30.

US country layer · Microsoft.Finance.VAT.Reporting · BC29-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/US/IRSForms/app/src/Setup/IRSReportingPeriod.Codeunit.al) · facts from BC29

An object of the [US localization](../../localizations/us.md), not part of W1.

## Properties

| Property | Value |
|---|---|
| Access | Internal |

## Procedures

- `ShowIRSFormsGuideNotificationIfRequired()`
- `OpenIRSFormsGuidePageFromNotification(Notification: Notification)`
- `GetReportingPeriod(PostingDate: Date): Code[20]`
- `GetReportingPeriod(StartingDate: Date; EndingDate: Date): Code[20]`
- `CopyReportingPeriodSetup(Notification: Notification)` (obsolete 28.0: Not used anymore)
- `CopyReportingPeriodSetup(ToPeriodNo: Code[20])` (obsolete 28.0: Use CopyReportingPeriodSetup with FromPeriodNo parameter instead.)
- `CopyReportingPeriodSetupFrom(FromPeriodNo: Code[20])`
- `CopyReportingPeriodSetup(FromPeriodNo: Code[20]; ToPeriodNo: Code[20])`
- `CopyReportingPeriodSetup(FromPeriodNo: Code[20]; ToPeriodNo: Code[20]; var TempSelectedCompany: Record Company temporary)`
- `UpdateDataForNewTaxYear(FromPeriodNo: Code[20]; ToPeriodNo: Code[20]; ConfirmBeforeUpdate: Boolean)`
- `UpdateDataForNewTaxYear(FromPeriodNo: Code[20]; ToPeriodNo: Code[20]; var TempSelectedCompany: Record Company temporary; ConfirmBeforeUpdate: Boolean)`
- `ShowIRS1099FormDocsFilteredByID(ErrorInfo: ErrorInfo)`

Plus 9 local procedures.

## Recent changes

- 2026-08-05 [#9868 [MAIN]-Bug 644801-IRS Reporting Period - Copy Setup process will copy the 1099 Adjustments as part of the process of copying from one IRS Reporting Period to a new Period setup.](../../changes/bcapps/9868.md) (main, BC30, fix)

## Across versions

- Present in: BC29-30
- Changed (declaration) in: none

## Deprecations

- procedure CopyReportingPeriodSetup: Pending 28.0 (#if not CLEAN28), "Not used anymore"
- procedure CopyReportingPeriodSetup: Pending 28.0 (#if not CLEAN28), "Use CopyReportingPeriodSetup with FromPeriodNo parameter instead."

Source: AL metadata extracted from the code (names, ids, signatures, properties); no code bodies (D10).

## Ask your agent

Procedure bodies are not stored here (D10). For a procedure body or the calls of one procedure, ask bc-code-atlas (external, by Stefan Maron, MIT; default corpus w1-28), which the bc-observatory plugin connects: `bcatlas_resolve_node(object_type: "codeunit", object_name: "IRS Reporting Period")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.

A US country object, not part of W1: the default corpus does not have it; `bcatlas_list_countries` shows which countries the atlas has.