IRS · Official form

Form 8916-A, Supplemental Attachment to Schedule M-3

Form 8916-A breaks out the cost of goods sold, interest income, and interest expense amounts reported on Schedule M-3. Complete the official IRS PDF online and download it with the rest of your return package.

This is the genuine IRS PDF, unmodified. Source: IRS official page.

What is 8916-A?

Form 8916-A, Supplemental Attachment to Schedule M-3, provides a detailed schedule of certain amounts that appear on Schedule M-3: cost of goods sold in Part I, interest income in Part II, and interest expense in Part III. Each part uses the familiar M-3 column layout, showing book amounts, temporary and permanent differences, and tax return amounts.

The form is filed by entities that complete Schedule M-3, which can include corporations filing Form 1120, S corporations on Form 1120-S, partnerships on Form 1065, and insurance companies on Forms 1120-L and 1120-PC. It gives the IRS line-level visibility into book-to-tax differences within these categories.

Who files 8916-A?

  • Corporations filing Schedule M-3 with Form 1120 that report cost of goods sold or interest items
  • Partnerships filing Schedule M-3 with Form 1065 that must detail these amounts
  • S corporations filing Schedule M-3 with Form 1120-S
  • Life and property and casualty insurers filing Schedule M-3 with Forms 1120-L or 1120-PC

How to fill out 8916-A

  1. Enter the entity name and EIN to match the attached Schedule M-3.
  2. Complete Part I to detail cost of goods sold, showing book amounts, temporary and permanent differences, and tax amounts for each line.
  3. Complete Part II for interest income and Part III for interest expense, using the categories printed on the form.
  4. Check that each part’s totals agree with the corresponding lines on your Schedule M-3.
  5. Download the completed PDF and file it with your return, attached behind Schedule M-3.

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Frequently asked questions

Who has to attach Form 8916-A?

Generally, Schedule M-3 filers that report cost of goods sold, interest income, or interest expense on the lines that require this supplemental detail. The Schedule M-3 instructions for your return type say when the attachment is required.

Do I fill in every part of the form?

Only the parts that apply. If you have no cost of goods sold, for example, you can skip Part I and complete just the interest parts your Schedule M-3 requires. The four-page form is usually much shorter in practice.