How to Apply for a Tax Id Number | Lovie — US Company Formation

A Tax ID Number, more commonly known as an Employer Identification Number (EIN) or Federal Tax Identification Number, is a unique nine-digit number assigned by the Internal Revenue Service (IRS) to business entities operating in the United States. Think of it as a Social Security number for your business. It's crucial for tax purposes, opening business bank accounts, hiring employees, and establishing your company's credibility. Applying for an EIN is a straightforward process, but understanding the requirements and steps involved ensures it's done correctly. Whether you're forming a new Limited Liability Company (LLC), a C-Corporation, an S-Corporation, or even a sole proprietorship that needs to hire employees, obtaining an EIN is often a mandatory step. This guide will walk you through precisely how to apply for a Tax ID Number, detailing the different methods available and key considerations for US businesses.

What is an EIN and Why Do You Need One?

An Employer Identification Number (EIN) is issued by the IRS to identify a business entity. It's required for various business operations, especially if you plan to hire employees, operate your business as a corporation or a partnership, file tax returns for certain types of businesses, or operate certain types of organizations. Even if not strictly required, obtaining an EIN can be beneficial for establishing your business as a separate legal entity, especially if you plan to open a business ba

Who Needs to Apply for an EIN?

The IRS mandates that certain business entities obtain an EIN. Primarily, if your business is structured as a corporation (C-Corp or S-Corp) or a partnership, an EIN is a must. These structures are legally distinct from their owners, and the EIN serves as the entity's identifier for tax purposes. Limited Liability Companies (LLCs) have a more nuanced requirement: a single-member LLC or a multi-member LLC that is not taxed as a corporation generally does not need an EIN if it has no employees. Ho

How to Apply for an EIN Online: The IRS Process

The most common and recommended method for obtaining an EIN is through the IRS's online application portal. This process is free of charge and typically results in receiving your EIN immediately upon successful completion. To apply online, you must first ensure your business entity is legally formed and recognized by the state in which it operates. For example, if you've formed an LLC in Delaware or a C-Corp in Texas, you'll need your official formation documents ready. To begin the online appl

Alternative Methods for Applying for an EIN

While the online IRS portal is the most efficient method, there are alternative ways to apply for an EIN if you are unable or prefer not to use the online system. These methods typically take longer to process than the online application. **Fax or Mail Application:** You can download Form SS-4, Application for Employer Identification Number, from the IRS website. Fill it out completely and accurately. If faxing, you can send it to the IRS fax number for your state (found in the Form SS-4 instru

Key Considerations and Common Mistakes When Applying

Applying for an EIN is generally straightforward, but certain details and potential pitfalls can cause delays or issues. One of the most critical aspects is ensuring the information you provide is accurate and matches your official business formation documents. For instance, if your LLC was formed in Nevada under the name "Acme Innovations LLC," ensure you use that exact legal name and not a variation like "Acme Innovations" or "Acme LLC." Double-check spellings, addresses, and the responsible p

Using Your EIN and Next Steps After Receiving It

Once you have successfully obtained your EIN, it becomes a critical identifier for your business's financial and tax activities. The first and most important step is to secure your EIN confirmation letter (CP 575). Store this document in a safe place, along with your other important business formation documents. You will need this number for virtually all official business transactions. Your next immediate step should be to open a dedicated business bank account. Present your EIN confirmation l

Frequently Asked Questions

Is applying for an EIN free?
Yes, applying for an EIN directly through the IRS website is completely free. Be wary of third-party websites that charge a fee for this service.
How long does it take to get an EIN?
Applying online typically results in receiving your EIN immediately. Faxed applications may take up to 4 business days, and mailed applications can take 4-5 weeks or longer.
Can I get an EIN for my sole proprietorship?
Generally, sole proprietors do not need an EIN unless they hire employees or meet specific IRS requirements. However, it's often needed to open a business bank account.
What if I make a mistake on my EIN application?
If you realize a mistake after receiving your EIN, you may need to contact the IRS to correct it or potentially apply for a new EIN if instructed. Accuracy is key to avoid this.
Can a foreign national get an EIN?
Yes, foreign nationals can obtain an EIN. They may need an ITIN or EIN themselves and can apply online or by phone if they don't have a U.S. physical presence.

Start your formation with Lovie — $20/month, everything included.