Stop putting your SSN on every W-9
Get a free Employer Identification Number from the IRS in 15 minutes, and use it instead. Plain English, no upsell, no scam fees.
How to Apply (Free) →What an EIN really is, in plain English
An Employer Identification Number (EIN) is a nine-digit ID the IRS gives to a business. It looks like this: 12-3456789. Think of it as a Social Security Number for your business. It tells the IRS, your bank, and anyone paying you which entity you are.
The name is misleading. You do not need to have employees to get one. Plenty of one-person freelancers and single-member LLCs get an EIN and never hire anyone. The number is just an ID, not a tax election or a commitment.
Why most freelancers should get one (even when it's optional)
If you are a sole proprietor or single-member LLC, the IRS technically lets you use your Social Security Number on every W-9, every 1099, every invoice. That is the default, and it works.
It is also a privacy disaster. Every new client gets a copy of your SSN. So does their bookkeeper. So does whoever opens the envelope at their accountant's office. So does whoever inherits the file when their business is sold. Your number is now sitting in dozens of file cabinets and inboxes you cannot see.
An EIN solves this. You give the EIN to clients on your W-9, on contracts, on invoices. Your SSN stays in two places: the IRS, and your tax preparer. That is the way it should be.
When you actually have to get one
Some business types are required to get an EIN. There is no opt-out:
- Multi-member LLCs (more than one owner)
- Partnerships
- Corporations (C corp or S corp)
- Nonprofits
- Most trusts and estates
- Anyone hiring W-2 employees, regardless of business structure
- Anyone with a Keogh or solo 401(k) retirement plan
If you are not on that list, the EIN is optional but smart. Check the do-you-need-an-EIN tool to see your exact case.
How to get one (the short version)
Go to IRS.gov, find the EIN application, and apply online. It is free. You answer about a dozen questions about your business, and the IRS issues your number on the screen at the end. Save the confirmation PDF. That is your proof.
Total time, if you have your information ready, is roughly 15 minutes. The application is open Monday through Friday, 7 a.m. to 10 p.m. Eastern.
Full step-by-step instructions, including the questions you will be asked and how to answer them, live on the How to Apply page.
Quick answers to common EIN questions
The privacy reason most articles skip
Search "do I need an EIN" and most articles will give you the same legalistic answer: only if required. They miss the real reason most freelancers eventually get one. They got tired of writing their Social Security Number on a W-9 for every new client.
Once you have given out your SSN ten or twenty times, the cost of not having an EIN starts to feel obvious. Identity theft, exposed payment files, and the simple discomfort of a number you have used for forty years sitting in someone else's email. None of that feels like a fair trade for "I did not feel like spending 15 minutes on a free form."
If you are even thinking about it, just apply.
Walk me through the application →