The Texas Comptroller XT number is a six-character Webfile code — the letters “XT” followed by six digits — printed in the upper right corner of your franchise tax notification letter. Its only job is to authenticate you when you log into the Comptroller’s eSystems portal to file a franchise tax report. It is not your taxpayer number, and it is not interchangeable with one.1Texas Comptroller of Public Accounts. Add Webfile Access
What the XT Number Is
The Comptroller calls the XT code a Personal Identification Code, and it is one type of Webfile number. Webfile numbers are the access credentials the Comptroller issues for online filing; the XT variety is the one tied to franchise tax. When you sit down to file a franchise tax report through eSystems, the portal asks for your 11-digit taxpayer number and a Webfile number. For franchise tax, that Webfile number is your XT code.2Texas Comptroller of Public Accounts. File and Pay
The format never varies. Two letters, six digits. If what you are holding does not match that pattern, it is not an XT number.
XT Number vs. 11-Digit Taxpayer Number
Confusing these two is the single most common mistake business owners make when dealing with the Comptroller. They serve different purposes and are used in different places.
The 11-digit taxpayer number — beginning with 1 or 3 — is your permanent account identifier. You use it to verify your permit status, add account access, and correspond with the Comptroller about anything. It appears on your sales tax permit, on franchise tax notices, and on other official correspondence.1Texas Comptroller of Public Accounts. Add Webfile Access
The XT number is narrower. It exists to let you file franchise tax online, and that is essentially all it does. If a form asks for your “taxpayer number,” it wants the 11-digit number. If eSystems asks for a Webfile number so you can file franchise tax, that is where the XT code goes. You cannot substitute one for the other.
Where To Find Your XT Number
Look at the upper right corner of any franchise tax notification letter the Comptroller has sent you. That is where the XT number is printed.1Texas Comptroller of Public Accounts. Add Webfile Access The Comptroller sets up a franchise tax account automatically based on information from the Texas Secretary of State, and taxable entities receive the notification letter separately from the sales tax welcome packet.
If you have never received a franchise tax notification letter, check that your entity’s mailing address on file is current. The Franchise Tax Accountability Questionnaire, available on the Comptroller’s website, lets you update your mailing address, establish your tax responsibility start date, and confirm your first report due date.3Texas Comptroller of Public Accounts. Questionnaires for Franchise Tax Accountability
If You Cannot Locate the Letter
The Comptroller’s public Taxpayer Search tool will confirm your 11-digit number and permit status by business name, FEIN, location, or zip code, but it does not display XT numbers.4Texas Comptroller of Public Accounts. Taxpayer Search To recover a lost XT code, you will need to contact the Comptroller’s office directly or wait for the next franchise tax notice to arrive.
Using the XT Number To File
When you log into eSystems to file franchise tax, you enter your 11-digit taxpayer number and your XT Webfile number. Both are required. The XT code authenticates you for that specific tax type; other Webfile numbers exist for other taxes, which is why the Comptroller keeps them separate.1Texas Comptroller of Public Accounts. Add Webfile Access
One point worth understanding: filing is required even when you owe nothing. Every taxable entity formed or doing business in Texas owes franchise tax reporting, though the tax itself may be zero. For the 2026 and 2027 report years, the no-tax-due threshold is $2,650,000 in total revenue.5Texas Comptroller of Public Accounts. Franchise Tax Businesses under that number still have to file. The XT code is how you do it online.
Why Filing Franchise Tax on Time Matters
The penalties for missing a franchise tax report escalate quickly, and they catch owners off guard because the flat penalty applies even when no tax is owed. A late report triggers a $50 penalty regardless of the tax due.6Texas Comptroller of Public Accounts. Penalties for Past Due Taxes
When tax is owed and paid late, percentage penalties stack on top of that $50:
- 1 to 30 days late: 5 percent of the tax due.
- More than 30 days late: 10 percent of the tax due.
- After the date on a Notice of Tax/Fee Due: an additional 10 percent, bringing the total to 20 percent of the tax owed.6Texas Comptroller of Public Accounts. Penalties for Past Due Taxes
Interest also accrues on unpaid balances. The practical point is simple. Even a zero-dollar report needs to be filed on time. Skipping one you think does not matter is the easiest way to accumulate penalties on an account that owes no tax.
Forfeiture of Business Privileges
The consequences of ignoring franchise tax filings go well beyond penalty dollars. Under Chapter 171 of the Tax Code, the Comptroller is required to forfeit a company’s right to transact business in Texas if it fails to meet franchise tax filing or payment requirements. Before forfeiture takes effect, the Comptroller must give at least 45 days’ notice after mailing a forfeiture warning, and any missing reports or unpaid tax have to be resolved within that window.7Texas Comptroller of Public Accounts. Franchise Tax Account Status
If forfeiture goes through, two consequences follow that most owners do not anticipate. The entity loses the right to sue or defend itself in any Texas court. And every director and officer becomes personally liable for the entity’s debts.7Texas Comptroller of Public Accounts. Franchise Tax Account Status That second consequence effectively removes the liability protection that LLCs and corporations exist to provide.
Reinstatement is possible, but not automatic. You have to file all missing reports, pay all taxes, penalties, and interest, and then obtain a Tax Clearance Letter from the Comptroller to submit to the Secretary of State.8Texas Comptroller of Public Accounts. Requesting Tax Certificates and Tax Clearance Letters
Keeping the Account in Order
A few habits keep the XT number useful when you actually need it. Store the franchise tax notification letter with your other permit documents rather than filing it away loose. Keep the entity’s mailing address current with the Comptroller so future notices arrive at a place you monitor. If your business changes its legal structure entirely — for example, converting from a sole proprietorship to an LLC — the new entity is treated as a new business for registration and receives its own taxpayer number and, in time, its own XT code. Simple name or address updates can be handled through eSystems.
When a responsible party changes, update both your federal EIN records and your Texas Comptroller account. The IRS defines a responsible party as the person who owns, controls, or exercises effective control over the entity and manages its funds: the principal officer for corporations, the general partner for partnerships.9Internal Revenue Service. Responsible Parties and Nominees Letting these records fall out of sync is a reliable way to miss the very notice that carries your XT number.