IRS Form 1040 is the United States Individual Income Tax Return used by most taxpayers to report annual income, claim deductions, and calculate tax liability. The form is available as a printable PDF, but with Formize you can fill it out directly in your browser—no Adobe Acrobat required.
Instead of downloading the PDF and opening it in a separate editor, simply click the “Fill out this form” button on this page. The Formize PDF Filler app will load, presenting an interactive version of the 1040 where you can type, select, and calculate in real time.
After you finish, download the filled PDF and either:
Keep a copy for your records.
No. With Formize you can fill the PDF entirely online—no additional software is required.
Yes. All data is processed in your browser and never stored on our servers unless you choose to download the completed file.
You can download a partially completed PDF at any time and reload it later in Formize to continue.
You can file an amended return (Form 1040‑X). The filled PDF you saved can be used as a reference when completing the amendment.
The basic fillable PDF feature is free. Advanced features like e‑signature may require a paid plan.
The linked PDF is the official 2024 IRS Form 1040. Always verify the tax year on the IRS website before filing.
Formize provides the completed PDF. You can then upload it to any IRS‑approved e‑file service or print and mail it.
IRS Form 1040 PDF is one of Tax forms that are documents used to report information related to taxes to the relevant tax authority. There are various types of tax forms, including federal, state, and local tax forms, which can vary depending on the taxpayer's circumstances and location.
The easiest way to fill IRS Form 1040 PDF online
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