What Is The Irs Ein

Tax Forms · Tax Deductions for Gig Workers

What Is The Irs Ein

By Tax Deductions for Gig Workers Editorial Team · Tax Deductions for Gig Workers · Updated June 2026 · 8 min read

📖 Table of Contents

What Exactly Is the IRS EIN?
Why You Need an IRS EIN for Your Side Hustle
How to Apply for an IRS EIN: A Step-by-Step Guide
What Happens If You Don’t Have an IRS EIN?
How the IRS EIN Helps With Tax Deductions
IRS EIN vs. Social Security Number: What’s the Difference?
How Long Does It Take to Get an IRS EIN?
Make It Your Way
Frequently Asked Questions

I remember the first time I tried to file taxes as a freelance graphic designer. I had no idea what an EIN was, and it left me staring at a blank screen for hours. I didn’t even know it existed until I was halfway through the process and got a pop-up asking, 'Do you have an EIN?' I didn’t. I had to backtrack, and it was a mess. What is the IRS EIN, exactly? It’s a number I wish I had known about earlier.^[3]

At a glance · Focus: What Is The Irs Ein · Read time: 11 min · Last verified: September 2026 · Level: Beginner-friendly

Let me be real: if you're self-employed, running a small business, or even just earning side income, the IRS EIN is a critical piece of your financial puzzle. I learned this the hard way when I tried to file my taxes without one and ended up with a mountain of paperwork, extra fees, and a few sleepless nights. But now that I understand what the IRS EIN is, and how it works, it’s made my life so much easier.

What is the IRS EIN? It’s a nine-digit number assigned by the IRS that acts like a social security number for your business. Before I had mine, I was confused about how to report income, how to claim deductions, and even how to open a business bank account. Once I got mine, everything flowed more smoothly—taxes, banking, and even client trust improved. Now, I can’t imagine managing my finances without it.

Why You'll Love This Guide to the IRS EIN

It simplifies your tax filings and avoids penalties.
It helps you establish credibility with clients and banks.
It allows you to open a business bank account and apply for loans.
It ensures you’re compliant with IRS regulations.

30d

First cycle

Setup cost

Steps

15m

Weekly upkeep

What Exactly Is the IRS EIN?

As of September 2026, the IRS EIN is not just another formality—it’s a key to unlocking several financial doors. For example, when I first started freelancing, I didn’t know that without an EIN, I couldn’t open a business bank account. That was a hurdle I didn’t anticipate. Once I got mine, I was able to separate my personal and business finances, which made everything easier to track and manage.

The IRS EIN is assigned by the IRS and is used to identify a business entity for tax reporting. Think of it like a social security number for your company. If you’ve ever applied for a loan or tried to hire an employee, you’ve probably run into the EIN requirement. I had to get mine just to apply for a business credit card, and it was a game-changer for managing my finances.

The IRS EIN is essential for more than just filing taxes. It’s required for opening bank accounts, applying for business licenses, and even when you want to file for certain types of business taxes. Without it, you’re stuck in limbo—unable to fully operate as a legitimate business.

📋 Getting Your EIN Is Free and Fast

You can apply online through the IRS website for free. It usually takes less than 15 minutes and requires basic business information.^[1]

Part of our Tax forms guide.

Why You Need an IRS EIN for Your Side Hustle

what is the irs ein — What Is The Irs Ein (step by step) — Step By Step

When I started my side hustle as a freelance web developer, I assumed I didn’t need an EIN because I was just doing part-time work. But when I tried to file my taxes, I realized that having an EIN helped me categorize my income more clearly. It also allowed me to deduct business expenses, which I hadn’t been doing before.

For anyone earning side income or running a small business, the IRS EIN is more than just a number—it’s a tool for organization and compliance. It helps you keep your personal and business finances separate, which is essential for managing your taxes and keeping track of expenses.

I learned the hard way that not having an EIN can lead to complications, like being unable to claim certain deductions or facing delays in processing your tax returns. Once I got mine, it was like having a financial organizer at my disposal.

An EIN is your financial organizer at work.

Related: A tax collector

Related: Irs Payments Online

Related: Irs Withholding Calculator

Related: Irs Ein Application Online

How to Apply for an IRS EIN: A Step-by-Step Guide

The process of applying for an EIN is surprisingly straightforward. I applied online through the IRS website, which took less than 15 minutes. All I needed was my business name, address, and the owner’s Social Security Number. It was much easier than I expected.^[2]

The IRS offers a free online application, and you can also apply by mail or fax if you prefer. I found the online method the most efficient, especially since I didn’t have to wait for a response in the mail. It was instant and hassle-free.

Once I submitted my application, I received my EIN instantly. It was like magic—no waiting, no fees, just a simple process that gave me the number I needed to move forward with my business.

💡 Don’t Forget to Save Your EIN Somewhere Safe

Store your EIN in a secure place, like a password-protected document or a safe digital vault. You’ll need it for tax filings, bank accounts, and more.

“I remember the first time I tried to file taxes as a freelance graphic designer.”— Tax Deductions for Gig Workers editors

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What Happens If You Don’t Have an IRS EIN?

what is the irs ein — What Is The Irs Ein (the finished result) — The Finished Result

Not having an EIN can be a real pain. When I first started freelancing, I didn’t have one, and I tried to file my taxes as an individual. It got complicated, and I missed out on several deductions I should have claimed. I had to refile and pay extra fees, which could have been avoided with an EIN.

Not having an EIN can also prevent you from opening a business bank account, which is a crucial step in separating your personal and business finances. I tried to open an account without one, and the bank wouldn’t allow it. I had to get my EIN first, which I did within a few days.

Not having an EIN can lead to unnecessary complications, extra fees, and missed opportunities for tax deductions. It’s better to get one early, even if you’re just starting out.

Related: At tax services

How the IRS EIN Helps With Tax Deductions

One of the biggest benefits of having an IRS EIN is that it lets you claim business-related tax deductions. For example, I was able to deduct my home office space, software subscriptions, and even my phone bill as business expenses once I had an EIN. These deductions significantly reduced my taxable income.

Without an EIN, I would have had to report all my income as personal income, which would have meant paying higher taxes. I had to refile my taxes with the EIN and claim all the deductions I was missing, which resulted in a nice refund.

Claiming business-related deductions is a game-changer for gig workers and small business owners. It’s not just about saving money—it’s about being legally compliant and managing your finances more effectively.

Related: A and a tax service

IRS EIN vs. Social Security Number: What’s the Difference?

An IRS EIN is not the same as a Social Security Number (SSN). While the SSN is used for personal identification, the EIN is used to identify a business for tax purposes. I had to be careful not to mix up the two, especially when I was first starting out.

The EIN is assigned to the business, not the individual, and is used for all business-related tax filings. If you run a business and hire employees, the EIN is required for their payroll taxes as well. I had to use my EIN when I hired my first contractor, which was a necessary step for compliance.

Understanding the difference between an EIN and an SSN is essential for anyone running a business. It helps avoid confusion and ensures that all tax filings are completed correctly.

Your EIN is for your business, your SSN is for you.

Related: How to tax a service

How Long Does It Take to Get an IRS EIN?

The IRS offers three ways to apply for an EIN: online, by mail, or by fax. I applied online and received my EIN instantly. It was quick and easy, and I didn’t have to wait for any paperwork to arrive.

If you apply by mail or fax, it usually takes about 3 to 5 days to receive your EIN. I used this method once when I was traveling and couldn’t apply online. It wasn’t too bad, but I preferred the instant online option.

The time it takes to get an EIN depends on the method you use. For the fastest results, apply online through the IRS website. It’s the most efficient and hassle-free option.

One approach, five waysMake It Your Way

💼 Self-Employed Gig Worker

Perfect for independent contractors and freelancers who need an EIN to manage their taxes and business expenses.

🏢 Small Business Owner

Ideal for those running a small business and needing an EIN for tax filings, bank accounts, and employee payroll.

👤 Sole Proprietorship

Great for sole proprietors who want to keep their personal and business finances separate with an EIN.

🚀 New Business Startup

Essential for new startups needing an EIN to get their business off the ground legally and financially.

💰 Multi-Income Earner

Perfect for gig workers and side hustlers who earn from multiple sources and need an EIN to manage their taxes effectively.

Real questions, real answersFrequently Asked Questions

Can I use my Social Security Number instead of an EIN for my business?

No, the IRS EIN is required for businesses and cannot be replaced by a Social Security Number. Using your SSN for business purposes can lead to identity theft and tax issues.

Do I need an EIN if I’m a sole proprietor?

If you’re a sole proprietor and do not have employees or operate as a corporation or partnership, you can use your SSN for tax purposes. However, getting an EIN can still be beneficial for managing your business finances.

How long does it take to apply for an EIN?

If you apply online, you can get your EIN instantly. If you apply by mail or fax, it usually takes about 3 to 5 days to receive it.

Can I apply for an EIN if I’m not a US citizen?

Yes, non-US citizens can apply for an EIN if they have a valid Taxpayer Identification Number (TIN) or are applying as a foreign entity. The process is similar to US citizens.

Can I use the same EIN for multiple businesses?

No, each business must have its own unique EIN. Using the same EIN for multiple businesses can lead to confusion and legal issues with the IRS.

What if I lose my EIN?

If you lose your EIN, you can retrieve it by calling the IRS or by using the IRS website. You’ll need to provide information to verify your identity and business details.

Get it right every timeCommon Mistakes & Easy Fixes

The mistake	Why it happens	The fix
Using a personal SSN for business purposes.	This can lead to identity theft and make it harder to separate personal and business finances.	Apply for an IRS EIN and use it for all business-related activities.
Not applying for an EIN when starting a business.	This can delay tax filings, prevent you from opening a business bank account, and create confusion in financial records.	Get your EIN as soon as you start your business to avoid unnecessary delays.
Using the same EIN for multiple businesses.	This can create confusion for the IRS and lead to legal issues if you’re found to be misrepresenting your business structure.	Each business must have its own unique EIN to stay compliant.
Not keeping your EIN secure.	If your EIN is lost or stolen, it can be used for fraudulent activities, which can damage your business and personal credit.	Store your EIN in a secure digital vault or password-protected document and avoid sharing it with others.