Where's My Tax Id Number Located

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Let’s clear up the big confusion right away. Most people have one of two numbers: a Social Security Number (SSN) or an Employer Identification Number (EIN). If you’re a regular employee, you’ve got an SSN. It’s the nine-digit number you’ve memorized since you were sixteen and got your first job at the ice cream shop.

If you run a small business, you probably have an EIN. It’s also nine digits, but it looks like 12-3456789. Your SSN is for you as a person. Your EIN is for your business—like the lemonade stand you ran as a kid, but with more paperwork and fewer sugar rushes.

Where to Find Your Social Security Number (SSN)

First place to look: your Social Security card. It’s that flimsy blue or pink piece of cardboard you were told to never carry in your wallet because losing it is a nightmare. Dig through your filing cabinet or safe. It’s usually hiding behind your birth certificate or that passport photo from 2006.

No luck? Check your W-2 form from work. Every January, your employer sends you a tax form that has your SSN printed right there, next to your name. It’s like a little present that says, “Hey, here’s your number and also, you made money last year.”

Still stuck? Look at older tax returns you filed. If you used TurboTax or an accountant, your previous year’s return has your SSN on the first page. It’s tucked in like a secret ingredient in a family recipe—always there, just forgotten.

4 Ways to Find a Federal Tax ID Number - wikiHow

Where to Find Your Employer Identification Number (EIN)

If you own a business, your EIN is your tax ID. You got it when you registered your company with the IRS. First place to check: your IRS confirmation letter (Form CP 575). That letter is your business’s birth certificate. It’s usually in that folder labeled “Important Business Stuff” or shoved in a desk drawer next to expired pens.

Can’t find the letter? Call the IRS Business & Specialty Tax Line at 1-800-829-4933. You’ll have to prove you are who you say you are, but they’ll read you your number over the phone. It’s like calling your mom to ask where you left your homework—embarrassing but effective.

Another sneaky place: on your business bank account statements. Your bank likely lists your EIN when you log in online. Look under “Account Details” or “Business Profile.” It’s like finding a $20 bill in an old coat—unexpected but welcome.