Independent form guide. BrieflyGo is not affiliated with or endorsed by IRS, USCIS, SSA, DOL, or any U.S. government agency. Official forms are sourced from public government websites.

IRSCorporate Tax (1120 Series)

Official form guide

Form 1125A: 1125-A

Form 1125‑A is used to report a corporation’s Cost of Goods Sold (COGS) on its income tax return. File it when you need to calculate COGS for Form 1120 or 1120‑S.

Fillable formOpen in Editor->Download blank PDF

Need help with Form 1125A?

Open it in the AI Editor for field guidance, checks, and PDF export.

Fillable formOpen in Editor->

Form Overview

IRS Form 1125A - 1125-A

Form 1125‑A is used to report a corporation’s Cost of Goods Sold (COGS) on its income tax return. File it when you need to calculate COGS for Form 1120 or 1120‑S.

It captures beginning inventory, purchases, labor, overhead, and ending inventory to compute total COGS.

Risk Radar

Scan points
  • 1A single arithmetic error can change your taxable income by thousands of dollars.
  • 2Mismatched beginning and ending inventory figures
  • 3Omitting indirect labor or overhead costs
  • 4Using the wrong fiscal year dates
  • 5Failing to attach the form to the return

Plain English

If your business buys, makes, or sells products, you must tell the IRS how much it cost you to get those products ready for sale. Form 1125‑A is the worksheet that breaks down those costs. The numbers you put here affect the profit shown on your corporate tax return.

Submission Date

  • Filing date: 2024-12-18 22:10:46
  • Preparation window: collect IDs, supporting records, and signatures in advance.
  • Final review: verify names, dates, and required fields before submission.

AI co-pilot

Fill it faster. Catch mistakes before you file.

Explains confusing fields in plain English
Flags missing signatures, dates, IDs, and attachments
Keeps the PDF ready for editor, send, and proof flows
Open AI workspace->

Glossary Terms

income taxinventoryoverheadincomelabor

Hover a term to preview the meaning.

What this form is for

  • Use when you have inventory and need to calculate COGS.
  • Do not use if you are a pure service business with no inventory.
  • If you filed Form 1125‑E (farm COGS) instead, check the farm schedule.

Form selector

Use this form or another form?

No inventory

No COGS needed

✓ Verify that inventory is truly zero

Form 1120 Schedule K

Farm operation

Farm-specific COGS rules

✓ Confirm farm status before using 1125‑A

Form 1125‑E

Partnership filing

Partnership COGS reported on partnership return

✓ Use partnership schedule, not 1125‑A

Form 1065 Schedule B

Deadline or filing window

Form 1125‑A must be filed with the corporate tax return by the return’s due date (generally March 15 for calendar‑year S corporations and April 15 for C corporations), or by the extended deadline if an extension is filed. No separate deadline exists.

  • —Beginning inventory | + Purchases + Direct labor + Overhead | Subtotal | Verify each source document
  • —Subtotal | – Ending inventory | Cost of Goods Sold | Ensure ending inventory is valued consistently

Checklist

What you need before filling it out

1

Beginning inventory

Prior year Form 1125‑A or inventory list · Prior year return

⚠ Using wrong prior year figure✕ High
2

Purchases

Supplier invoices, receipts · Accounting ledger

⚠ Missing invoices✕ Medium
3

Direct labor

Payroll records, time sheets · Payroll reports

⚠ Excluding overtime✕ Medium
4

Overhead allocation

Utility bills, rent statements · Cost allocation schedule

⚠ Double‑counting rent✕ Low
5

Ending inventory

Physical count sheet, valuation report · Year‑end inventory report

⚠ Counting errors✕ High

Before you submit

  1. 1All line totals add correctly.
  2. 2Beginning inventory matches prior year ending inventory.
  3. 3All purchase amounts are supported by invoices.
  4. 4Labor and overhead are allocated per the company’s policy.
  5. 5Ending inventory is physically counted and valued.
  6. 6Form is attached to the corporate return before signing.
  7. 7PDF version (if e‑filing) is legible and not password protected.
  8. 8No blank required fields remain.
  9. 9Date the form with the same date as the corporate return.
  10. 10Cross‑check totals with the worksheet on page 2.
  11. 11Retain supporting documents for at least three years.
  12. 12Confirm the correct IRS mailing address if filing paper.

How to file this form

  1. 1Collect inventory reports, purchase invoices, payroll and overhead records.
  2. 2Complete the worksheet on page 2 to verify calculations.
  3. 3Enter figures on Form 1125‑A line by line.
  4. 4Re‑calculate totals and compare to worksheet.
  5. 5Attach the form to Form 1120 or 1120‑S.
  6. 6If filing paper, mail to the address listed in the corporate return instructions.
  7. 7If e‑filing, upload the PDF as part of the return package.
  8. 8File the return (and attached form) by the due date.

Known limitations

  1. 1Form does not provide guidance on inventory valuation methods; choose method consistently.
  2. 2No automatic error checking in the PDF; manual verification required.
  3. 3The form assumes a single inventory category; multiple categories need separate calculations.
  4. 4IRS instructions may be updated after the edition date; verify on IRS.gov.

Field map

Compact field-by-field guide

9 fields

Entity Info

2 items

Corporation Name and EIN

Full legal name of the corporation and its Employer Identification Number.

Requiredtext
Address and Date Incorporated

Current mailing address and date of incorporation.

Requiredtext

Income

3 items

Gross Receipts or Sales

Total revenue from business operations before deducting costs.

Requiredamount
Cost of Goods Sold

Direct costs attributable to producing goods sold by the corporation.

amount
Total Income

Gross receipts minus cost of goods sold and returns/allowances.

Requiredamount

Deductions

1 items

Total Deductions

Sum of all business expenses including compensation, rent, interest, taxes, and depreciation.

Requiredamount

Tax

2 items

Taxable Income

Total income minus total deductions.

Requiredamount
Total Tax

Tax calculated on taxable income using the applicable corporate tax rate, minus any credits.

Requiredamount

Signatures

1 items

Officer Signature

An authorized corporate officer must sign and date the return.

Requiredsignature
This compact map shows typical fields for this form type. The AI Editor gives precise field guidance after you open the PDF.

Almost done reviewing the fields?

Fillable formOpen in Editor->
Current form status
IRS

Form 1125‑A is currently in its 2024 revision (Edition date: January 2024). No filing fee is required, but the form must be attached to the corporate return.

What changed or needs a fresh check

  • Edition date: January 2024
  • Fee: none
  • Mailing address: same as corporate return address on IRS instructions
  • Electronic filing: attach as PDF within e‑file package
  • Signature: no separate signature required; corporate return signature covers it
  • Paper size: 8.5" × 11"

Form Preview

Form 1125A page 1

Page 1

Form 1125A page 2

Page 2

Open in AI Editor →

Quick Facts

Corporations (including S corporations) that have inventory and need to report COGS.
It captures beginning inventory, purchases, labor, overhead, and ending inventory to compute total COGS.
Attach it to the corporate tax return (Form 1120 or 1120‑S) for the tax year being filed, typically by the return’s due date (including extensions).
Include the completed Form 1125‑A with the paper return mailed to the IRS address for the corporate return, or upload it as part of the e‑file package.
Incorrect COGS changes taxable income, which can trigger penalties, interest, or an audit.
Gather inventory counts for the start and end of the year, total all purchases, add direct labor and allocated overhead, then enter each line on the form. Verify that totals reconcile with the worksheet on page 2. Attach the form to your corporate return before signing and filing.

Downloads

Blank Form 1125A↗

Fill Form 1125A

AI-powered guidance for every field

Fillable formOpen in Editor->

Free to start / No account required

After you file

  1. 1Store the signed return and attached Form 1125‑A in a secure location.
  2. 2Keep all supporting invoices, payroll records, and inventory counts for three years.
  3. 3Monitor IRS correspondence for any COGS-related notices.
  4. 4If an amendment is needed, use Form 1120‑X and attach a revised Form 1125‑A.
  5. 5Update your internal cost accounting system with the year‑end inventory figures.
  6. 6Review the next year’s opening inventory to ensure continuity.

Sources

  • SRCIRS Instructions for Form 1125‑Aconfirms purpose and attachment requirement
  • SRCForm 1125‑A PDFshows line items and worksheet layout
  • SRCIRS Publication 538explains COGS calculation methods
  • SRCIRS Filing Deadlines for Corporationsprovides due dates
  • SRCIRS e‑File Guidanceoutlines electronic attachment process
  • SRCNot clearly stated in the provided official source

Common confusion points

Beginning vs. ending inventory

Users swap the two values

→ Double‑check prior year ending inventory

Direct labor vs. overhead

Labor sometimes recorded as overhead

→ Follow company allocation policy

Multiple inventory locations

Totals may be split across sites

→ Consolidate all locations before entering

Farm vs. non‑farm COGS

Form 1125‑E looks similar

→ Verify business type before selecting form

Electronic vs. paper attachment

Some e‑filers omit the PDF

→ Confirm attachment in the submission preview

Fiscal year vs. calendar year

Wrong year dates cause mismatched totals

→ Use the tax year indicated on the return

Rounding differences

Small rounding can cause mismatched totals

→ Adjust to nearest cent consistently

Workflow map

Related forms and next steps

7 signals

Before

Form 1120 or 1120‑S (corporate tax return)Form 1125‑B (Cost of Goods Sold for partnerships) – different entity type

Current

1125A

After

Schedule L (Balance Sheet) – ending inventory feeds balance sheetForm 2210 (Underpayment of estimated tax) if COGS changes affect estimated payments

Often used with

Form 1125‑E (farm COGS) if applicableForm 4562 (Depreciation) if equipment cost is included in overhead

⚠ If something goes wrong

  • Form 1120‑X (Amended return) to correct COGS

Ready to get started?

Upload the form or open it in the AI Editor for intelligent guidance

Fillable formOpen in Editor->

Source transparency

Copyright & Licensing - US Government Forms

Independent guide

BrieflyGo links to and explains official public form sources. We are not a government agency, and this page is for general form guidance, not legal advice.

Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Verify current license terms with the source agency before reuse outside this platform.

Never sign without understanding every clause.

BrieflyGo reviews your contracts in plain English — instantly.

Try for free →