IRS Form 8949 – Fillable PDF for Capital Gains Reporting

Form 8949, titled Sales and Other Dispositions of Capital Assets, is the IRS form you use to report the sale of stocks, bonds, real estate, and other investment assets. Whether you have a short‑term trade (held ≤ 1 year) or a long‑term investment, each transaction must be listed on Form 8949 before the totals are transferred to Schedule D of your 1040.

What Is Form 8949?

The form captures essential details for every capital‑asset transaction: description of the property, acquisition and sale dates, proceeds, cost basis, adjustments (such as wash‑sale losses), and the resulting gain or loss. The IRS provides three separate boxes (A, B, C) for short‑term sales and three for long‑term sales, letting you indicate whether the basis was reported to the IRS.

How to Fill Out Form 8949 Online with Formize

Formize lets you complete the official PDF without installing any software. Just click the “Fill out this form” button, wait a moment for the Formize PDF Filler to load, and you’ll see an interactive, fillable version of Form 8949 ready for data entry.

Common Mistakes to Avoid

• Leaving Box A, B, or C unchecked – the IRS will reject the submission.
• Mismatching dates – acquisition and sale dates must be accurate to determine short‑ vs long‑term status.
• Incorrect basis adjustments – ensure wash‑sale codes and other adjustments are entered in column (g).
• Summing totals incorrectly – double‑check the sums before copying them to Schedule D.

When Do You Need to Use Form 8949?

You must file Form 8949 for any capital‑asset transaction that is not already reported on a 1099‑B with a “basis reported to the IRS” checkbox checked, or when you need to report adjustments, codes, or a basis that was not reported.

Download, Print, or Save Your Completed Form

After you finish entering data, you can:

• Download a completed PDF to attach to your e‑file.
• Print a hard copy for a mailed return.
• Save to your cloud storage for future reference.

All actions are performed directly within the browser, keeping your information secure and private.