Starting a business is exciting—until the paperwork hits. One of the first speed bumps most new founders encounter is figuring out what kind of tax identification number they need. Should you get an EIN? Is your Social Security Number enough? What even is a TIN?
If you’re confused, you’re not alone. This is one of the most overlooked (but critical) decisions early on, and it can affect your taxes, banking, hiring, and legal status.
Thankfully, CashSwipe’s article on TIN vs EIN does a great job of clearing the fog. Below, I’ll break down the key points from their piece—plus add some real-world business context so you can avoid costly mistakes.
First, What Is a TIN?
TIN stands for Taxpayer Identification Number. It’s an umbrella term used by the IRS to describe any number used to identify you or your business for tax purposes.
There are multiple types of TINs:
- SSN (Social Security Number): For individuals, freelancers, and sole proprietors.
- EIN (Employer Identification Number): For businesses, LLCs, partnerships, and corporations.
- ITIN (Individual Taxpayer Identification Number): For non-citizens who aren’t eligible for SSNs but still need to file taxes.
- ATIN, PTIN, etc.: Specialized versions for adoptive parents, tax preparers, and more.
So when someone asks, “Do you have a TIN?”—you probably do. If you’ve ever filed taxes, you’ve used one.
What Is an EIN?
An EIN is a specific type of TIN issued to businesses. Think of it as your company’s Social Security Number. It’s used for:
- Filing business taxes
- Opening a business bank account
- Hiring employees
- Applying for business licenses
- Setting up payroll
You get your EIN directly from the IRS, usually online, and it’s free.
As CashSwipe explains, “If you’re running a legit business—not just a hobby—you probably need an EIN.”
Do You Need an EIN?
This is where a lot of people get it wrong. Many freelancers or online sellers assume they can just use their SSN forever. And technically, that’s true for sole proprietors with no employees. But that doesn’t mean it’s the smart move.
Here’s when you should absolutely get an EIN:
✅ You plan to hire employees
If you’re paying others—even contractors through payroll—you’ll need an EIN to report income and withhold taxes.
✅ You form an LLC, partnership, or corporation
These business structures require a separate legal identity. That means separate taxes, separate bank accounts, and yes—a separate EIN.
✅ You want to open a business bank account
Most banks won’t let you open one using just your SSN. They’ll ask for your EIN, business registration, and operating agreement.
✅ You need to apply for licenses or permits
Local governments or agencies may require a federal EIN to issue your business license or seller’s permit.
✅ You want to separate business from personal taxes
Even if you’re a one-person show, using an EIN adds a layer of legal and financial protection. It makes bookkeeping easier, simplifies tax prep, and keeps your personal identity safer.
Why You Shouldn’t Use Your SSN for Business
Many solopreneurs start by using their SSN to sign up for PayPal, Stripe, or Etsy. But that’s risky.
Here’s why:
- Security: Sharing your SSN increases identity theft risk.
- Professionalism: Vendors and clients may take you less seriously without a formal business ID.
- Accounting headaches: Mixing personal and business income under one ID complicates tax season.
- Growth limitations: If you ever want to scale, hire, or apply for business credit, you’ll need an EIN anyway.
As CashSwipe puts it, “Getting an EIN is like putting your business pants on.”
How to Get an EIN in 2025 (It’s Easier Than You Think)
No, you don’t need a lawyer. No, you don’t have to pay someone on Fiverr.
The IRS offers a free online EIN application at irs.gov. It takes about 10 minutes, and you’ll get your EIN immediately if you apply during business hours.
You’ll need:
- Your business name and structure (LLC, sole prop, etc.)
- Your SSN or ITIN
- Business address
- Responsible party information (usually you)
Avoid third-party services that charge fees—they’re often unnecessary.
Quick Comparison: TIN vs EIN
| Feature | TIN | EIN |
| Stands for | Taxpayer Identification Number | Employer Identification Number |
| Who issues it? | IRS or SSA | IRS |
| Used by | Individuals, businesses, non-residents | Businesses, nonprofits, estates, trusts |
| Required for business bank accounts? | Not always | Usually, yes |
| Can you use it for taxes? | Yes | Yes |
| Used to hire employees? | No | Yes |
| Cost | Free | Free |
Still Not Sure Which One You Need?
Ask yourself:
- Do I plan to grow this beyond just me? → Get an EIN.
- Do I want a clean separation between business and personal finances? → Get an EIN.
- Do I want to look like a real business to banks, clients, and the IRS? → Get an EIN.
If you’re just side-hustling under your own name, and you’re not hiring or incorporating yet, you can technically stick with your SSN. But even then, applying for an EIN is free, fast, and removes risk. There’s no downside.
Mistakes to Avoid
- Using your SSN when you should be using an EIN
This can create tax confusion, or worse—mix personal and business liabilities. - Delaying your EIN
It’s required for bank accounts, licenses, and many platforms. Waiting could slow down your entire launch. - Paying someone unnecessarily
The EIN application is free. Don’t let someone charge you $100+ for something you can do yourself in 10 minutes.
CashSwipe’s article makes this clear: “You don’t need to overthink it—just get the EIN and move forward.”
Final Take
If you’re serious about starting or growing a business in 2025, getting your EIN is one of the simplest steps you can take to set yourself up for success.
It shows the IRS you’re legit. It helps you build business credit. It separates your financial identity. And it opens doors to tools and services that only real businesses can access.
