Texas LLC EIN vs State Tax ID: What's the Difference?
New Texas LLC owners are often confused by "tax ID" because a single LLC can end up with several different numbers. The two most common are your EIN — a 9-digit federal number from the IRS — and your Texas taxpayer number, an 11-digit number the Texas Comptroller assigns for state franchise and sales tax. They come from different agencies and are not interchangeable. Here's exactly what each number is and when you use it.
Disclaimer: This guide is for general informational purposes only and does not constitute legal or tax advice. Rules and dates change — always verify current requirements directly with the relevant agency before acting.
The numbers a Texas LLC actually deals with
Between the federal government and the State of Texas, an LLC can encounter up to three separate identifying numbers, plus a fourth that Texas simply doesn't have:
- EIN (Employer Identification Number) — 9 digits, issued by the IRS (federal).
- Texas taxpayer number — 11 digits, issued by the Texas Comptroller (state).
- Sales tax permit number — issued by the Comptroller when you register to collect sales tax.
- State income-tax withholding ID — does not exist in Texas, because Texas has no state personal income tax.
Understanding which is which keeps you from entering the wrong number on a bank form, a vendor's W-9, or a WebFile login.
Common mistake: Treating "EIN" and "state tax ID" as the same thing. They are issued by different governments, have different digit counts, and are used for entirely different filings.
EIN — your federal tax ID
An EIN, also called a Federal Employer Identification Number (FEIN) or federal tax ID, is a 9-digit number issued by the Internal Revenue Service. Think of it as a Social Security number for your business at the federal level.
What it's used for:
- Filing federal tax returns and making federal tax payments
- Opening a business bank account (most banks require it)
- Running payroll and issuing W-2s and 1099s
- Completing W-9 forms for clients and vendors
- Applying for business licenses and permits
How to get it: Apply directly with the IRS at irs.gov — it is free, and an online application usually issues the number immediately. You never have to pay a third-party service to obtain one.
Nearly every Texas LLC needs an EIN. A single-member LLC with no employees can sometimes use the owner's Social Security number for federal taxes, but an EIN is still recommended to keep business and personal finances separate. For a full walkthrough, see our guide on how to get an EIN for your Texas LLC and the broader overview of the Texas LLC Employer Identification Number.
Common mistake: Paying a website that advertises "EIN registration" for a fee. The IRS issues EINs at no cost.
Texas taxpayer number — your state tax ID
The Texas taxpayer number is an 11-digit number assigned by the Texas Comptroller of Public Accounts. This is what people usually mean by a "Texas state tax ID." It is distinct from your federal EIN and comes from a different agency entirely.
What it's used for:
- Filing your annual franchise tax report (due May 15) through the Comptroller's WebFile system
- Filing the Public Information Report that accompanies the franchise report
- Registering for and managing sales tax with the state
- Corresponding with the Comptroller about any state tax account
The Comptroller typically establishes your Texas taxpayer number when your LLC becomes subject to franchise tax or when you register for a state tax like sales tax. You generally do not "apply" for it as a standalone step the way you apply for an EIN — it is created as part of setting up your Comptroller account.
Common mistake: Entering your 9-digit EIN where WebFile asks for your 11-digit Texas taxpayer number. The two are different numbers with different lengths. If you can't find your taxpayer number, look on Comptroller correspondence or contact the Comptroller — don't substitute your EIN.
Your franchise tax obligation is tied to this number. To understand what that filing involves, see what Texas franchise tax is.
Sales tax permit number
If your LLC sells taxable goods or services in Texas, you must register for a sales tax permit with the Comptroller. Registration produces a sales tax permit number that authorizes you to collect and remit Texas sales tax.
- Agency: Texas Comptroller of Public Accounts
- Application: Form AP-201, filed at comptroller.texas.gov/taxes/permit/
- Cost: Free to apply
- What it lets you do: Legally collect the 6.25% state sales tax (plus up to 2% local, for a maximum of 8.25%) and file sales tax returns
The sales tax permit account sits under your Comptroller taxpayer record, so it's related to your Texas taxpayer number — but the permit number is specific to your authority to collect sales tax. Not every LLC needs one; it depends on what you sell. Our Texas LLC sales tax permit guide explains who must register and how.
Common mistake: Assuming any Texas LLC automatically has sales tax authority. You must actively register for the permit before collecting sales tax, and you must file returns — including zero-dollar returns — once you hold one.
Why there's no Texas state income-tax withholding ID
In many states, employers must obtain a separate state withholding ID to remit employees' state income tax. Texas has no state personal income tax, so there is no state income-tax withholding ID to get.
That doesn't mean employers have no state-level accounts. If your LLC has W-2 employees, you'll still need:
- A federal EIN for federal payroll taxes and W-2 reporting
- A separate unemployment insurance (UI) tax account with the Texas Workforce Commission for quarterly wage reports
So the "missing" withholding ID is simply a feature of Texas's tax structure — one less number to track, not something you've overlooked.
Comparison: EIN vs Texas taxpayer number vs sales tax permit
| Feature | EIN | Texas taxpayer number | Sales tax permit number |
|---|---|---|---|
| Level | Federal | State (Texas) | State (Texas) |
| Issuing agency | IRS | Texas Comptroller | Texas Comptroller |
| Digits / format | 9 digits | 11 digits | Assigned on registration |
| Cost | Free | No standalone fee | Free to apply (Form AP-201) |
| Primary use | Federal taxes, banking, payroll | Franchise tax + PIR, state tax account | Authority to collect sales tax |
| How you get it | Apply at irs.gov | Assigned by Comptroller for franchise/sales tax | Register for sales tax |
| Who needs it | Nearly all LLCs | LLCs subject to franchise or sales tax | LLCs selling taxable goods/services |
Quick reference
| Detail | Info |
|---|---|
| What | The distinct tax IDs a Texas LLC may hold |
| EIN | 9-digit federal ID from the IRS — free at irs.gov |
| Texas taxpayer number | 11-digit state ID from the Texas Comptroller for franchise and sales tax |
| Sales tax permit number | Issued by the Comptroller when you register for sales tax (Form AP-201, free) |
| State income-tax withholding ID | None — Texas has no state personal income tax |
| Where (state) | comptroller.texas.gov |
| Cost | EIN free; taxpayer number and sales tax permit free |
| Common risk | Entering the 9-digit EIN where the 11-digit Texas taxpayer number is required |
FAQ
What is the difference between an EIN and a Texas state tax ID?
An EIN is a 9-digit federal number issued by the IRS, used for federal taxes, banking, and payroll. A Texas state tax ID — the Texas taxpayer number — is an 11-digit number issued by the Texas Comptroller for state franchise and sales tax. They come from different agencies and serve different purposes, so they are not interchangeable.
Does a Texas LLC need both an EIN and a Texas taxpayer number?
Most Texas LLCs end up with both. You get an EIN from the IRS for federal purposes, and the Comptroller assigns an 11-digit Texas taxpayer number when your LLC becomes subject to franchise tax or registers for sales tax. Which numbers you need depends on how your LLC is taxed and what it sells.
Is my Texas taxpayer number the same as my sales tax permit number?
No. The Texas taxpayer number is your general 11-digit account number with the Comptroller. A sales tax permit number is issued specifically when you register for sales tax and authorizes you to collect it. The two are related accounts at the same agency but are used for different filings.
Does Texas have a state income tax withholding ID?
No. Texas has no state personal income tax, so there is no state income-tax withholding ID for LLCs to obtain. Employers still need a federal EIN for payroll and a separate account with the Texas Workforce Commission for unemployment insurance tax.
What happens if I don't have a Texas taxpayer number when I need to file franchise tax?
If your LLC owes a franchise tax report but has no taxpayer number on file, you cannot file through WebFile until the Comptroller sets up your account. Contact the Comptroller to establish or locate your number. Missing the May 15 franchise deadline can trigger a $50 penalty and, over time, forfeiture of your LLC's right to do business. For nuanced situations, consult a CPA or licensed Texas attorney.
Not sure what else your Texas LLC owes?
Most business owners are surprised by how many filing obligations they have. Ortholo's free compliance checker shows you everything you owe, when it's due, and what happens if you miss it — personalized to your entity.
Last verified: 2026-08-04
Sources: IRS — Apply for an EIN | Texas Comptroller — Franchise Tax | Texas Comptroller — Sales Tax Permit