Application Form No. 4 (IRS Form SS‑4) – Fillable PDF

Form Application No. 4, officially known as IRS Form SS‑4, is the standard application used by businesses, trusts, estates, and other entities to obtain an Employer Identification Number (EIN). An EIN is required for tax reporting, opening bank accounts, hiring employees, and many other legal activities.

What Is Application Form No. 4?

The SS‑4 form collects basic information about the entity applying for an EIN, such as legal name, mailing address, type of entity, reason for applying, and the name of the responsible party. The form is published by the Internal Revenue Service (IRS) and is available as a free, fillable PDF.

How to Fill Out the Form Online with Formize

Instead of downloading the PDF and opening it in a separate editor, you can fill it out directly on our page using the Formize PDF Filler app. Follow these simple steps:

1. Click the "Fill out this form" button below.
2. Wait a few seconds while the Formize PDF Filler loads the fillable SS‑4 document.
3. Enter the required information in each field. The interface saves your entries automatically.
4. When you’re finished, click "Save & Download" to get a completed PDF you can print or submit electronically.

Common Mistakes to Avoid

• Leaving the "Reason for Applying" blank – the IRS requires a clear reason (e.g., new business, banking purposes).
• Mismatching the legal name and DBA name – ensure the name matches your articles of incorporation or registration.
• Using an outdated address – the address must be current; otherwise, correspondence may be delayed.
• Forgetting to sign – the responsible party’s signature is mandatory for the form to be accepted.

Where to Submit the Completed Form

After you have saved the completed SS‑4 PDF, you can submit it in one of three ways:

• Online: Call the IRS Business & Specialty Tax Line at 1‑800‑829‑4933 and provide the information verbally.
• Fax: Fax the form to the appropriate IRS fax number listed in the SS‑4 instructions.
• Mail: Send the form to the IRS address shown in the instructions for your state.

Frequently Asked Questions

Below are answers to the most common questions about Application Form No. 4.