Texas EIN Guide: How to Get Your Federal Tax ID Number

Introduction

An Employer Identification Number (EIN) is one of the most important identification numbers your business will ever obtain. Issued by the IRS, it's essentially a Social Security number for your business.

In this guide, we'll explain what an EIN is, who needs one, how to get one, and why it's essential for your Texas business.

What Is an EIN?

An Employer Identification Number (EIN) is a unique nine-digit number assigned by the Internal Revenue Service (IRS) to identify your business for tax purposes. It's also known as a Federal Tax Identification Number.

Your EIN is used to:

• File federal tax returns
• Open a business bank account
• Hire and pay employees
• Apply for business licenses and permits
• Build business credit
• File state tax returns

Who Needs an EIN?

You need an EIN if your business:

• Has employees
• Operates as a partnership or corporation
• Files employment, excise, or alcohol/tobacco/firearms tax returns
• Withholds taxes on income (other than wages) paid to a non-resident alien
• Has a Keogh plan (a type of retirement plan for self-employed individuals)
• Is involved with certain types of organizations (nonprofits, estates, trusts, etc.)

Do I Need an EIN for My LLC?

All multi-member LLCs need an EIN. For single-member LLCs, the answer depends on how you're taxed:

• Single-member LLC taxed as a sole proprietorship: An EIN is technically not required, but it's strongly recommended for banking and business credit purposes
• Single-member LLC taxed as an S corp or C corp: An EIN is required
• Multi-member LLC: An EIN is required regardless of tax classification

Recommendation: Even if your single-member LLC doesn't technically require an EIN, get one anyway. You'll need it to open a business bank account, and it keeps your personal Social Security number off business documents.

How to Get an EIN

Applying Online

The fastest way to get an EIN is through the IRS website. The online application is available Monday through Friday, 7 AM to 10 PM Eastern Time.

Steps to apply online:

1. Go to the IRS EIN application page
2. Answer the qualification questions
3. Provide your business information (name, address, entity type)
4. Receive your EIN immediately upon completion

The entire process takes about 15 minutes, and you'll receive your EIN confirmation letter as a downloadable PDF.

Applying by Mail or Fax

If you can't apply online, you can file Form SS-4 by mail or fax:

• By mail: Complete Form SS-4 and mail it to the IRS. Processing takes 4–5 weeks.
• By fax: Fax Form SS-4 to the appropriate IRS fax number. Processing takes 4–5 business days, and your EIN is returned by fax.

Applying for an International Applicant

If your principal business is located outside the United States, you can apply by phone by calling the IRS International EIN department.

What Information Do You Need to Apply?

To apply for an EIN, you'll need:

• Your name and Social Security number (or Individual Taxpayer Identification Number)
• Your business name (must match what's on your Certificate of Formation)
• Business address (a physical U.S. address is required)
• Entity type (LLC, corporation, partnership, etc.)
• Reason for applying (started a new business, hired employees, etc.)
• Business start date
• Principal business activity

EIN and Your Texas LLC

When you form a Texas LLC, obtaining an EIN is one of the first things you should do after receiving your approved Certificate of Formation. Here's how it fits into the formation process:

1. File the Certificate of Formation — Texas LLC Formation
2. Appoint a registered agent — Texas Registered Agent Services
3. Create an operating agreement — Operating Agreement Guide
4. Obtain an EIN — Apply through the IRS
5. Open a business bank account — Use your EIN and formation documents

Our LLC Formation package includes EIN application assistance—we handle the paperwork so you don't have to.

Using Your EIN

Once you have your EIN, you'll use it for:

Opening a Business Bank Account

Banks require an EIN to open a business bank account. A separate business account is essential for maintaining your LLC's liability protection—mixing personal and business finances can result in "piercing the corporate veil."

Filing Tax Returns

Your EIN is used on all federal and state tax returns. For multi-member LLCs, you'll file Form 1065 (partnership return). Single-member LLCs report on Schedule C of the owner's personal return.

Hiring Employees

If you hire employees, you'll need your EIN to:

• Report wages and withholdings to the IRS
• File employment tax returns
• Report new hires to the Texas Workforce Commission

Applying for Business Licenses

Many state and local business license applications require an EIN.

Building Business Credit

Your EIN allows you to build credit separate from your personal credit, which can help you secure loans, credit cards, and favorable terms with vendors.

Common EIN Mistakes to Avoid

Not Getting an EIN When You Need One

Some single-member LLC owners think they don't need an EIN because they can use their Social Security number. This is a mistake—it puts your SSN on business documents and prevents you from opening a business bank account.

Losing Your EIN

Keep your EIN confirmation letter in a safe place. If you lose it, you'll need to contact the IRS to retrieve it, which takes time.

Using Your Personal SSN Instead

Never use your personal Social Security number for business transactions. Always use your EIN to protect your personal information and maintain your LLC's separate identity.

Not Updating Your EIN Information

If your business name or address changes, you need to update the IRS by filing Form 8822-B. This ensures your EIN records are current.

Is an EIN the Same as a Texas Tax ID?

No. An EIN is a federal tax ID number issued by the IRS. Texas also has its own tax identification numbers:

• Texas Comptroller Tax ID: Used for state franchise tax and sales tax
• Texas Workforce Commission Account Number: Used for unemployment tax if you have employees

Your EIN is separate from these state numbers. You'll need your EIN to apply for state tax accounts.

Key Takeaways

• An EIN is a nine-digit federal tax ID number issued by the IRS
• Most LLCs need an EIN, and it's recommended for all LLCs—even single-member ones
• You can apply online through the IRS website and receive your EIN immediately
• Your EIN is used for tax filing, banking, hiring, and business credit
• Never use your personal SSN for business transactions—always use your EIN
• Our LLC formation package includes EIN application assistance

Need Professional Help?

Need help getting your EIN? Our Texas LLC Formation package includes EIN application assistance—we handle the paperwork so you can focus on building your business.

Learn more about how to start an LLC in Texas and the annual requirements for maintaining your LLC.