Introduction: What Is IRS Form W-13?

IRS Form W-13, officially titled ExSTARS Reporting Information Request for Taxpayer Identification Number and Certification (also known as the ExSTARS Reporting Information Request for Employer Identification Number and Certification), is a specialized excise tax verification document published by the Internal Revenue Service (IRS). Governed by the Department of the Treasury, this form operates within the federal fuel compliance program.

The form is designed specifically for entities involved in the commercial movement and storage of taxable motor fuel under the Excise Summary Terminal Activity Reporting System (ExSTARS). Much like Form W-9 is used to collect tax identification numbers for general business payments, Form W-13 is used by fuel terminal operators and bulk transport carriers to collect verified tax identifiers from their commercial clients.

Form W-13 is not submitted directly to the IRS. Instead, you complete the form and provide it directly to the fuel terminal operator or bulk carrier requesting it. It establishes your legal business entity and certifies your nine-digit Employer Identification Number (EIN) under penalties of perjury so that fuel transactions can be tracked accurately in federal excise databases.

Purpose of the Form: Why Does Form W-13 Exist?

Federal and state governments collect billions of dollars annually in motor fuel excise taxes to fund highway construction, public transit, and airport infrastructure. Historically, the fuel industry was vulnerable to widespread tax evasion schemes—such as fuel bootlegging, illegal blending, and complex transaction chains—where fuel was moved across state lines without the required excise taxes being paid.

To eliminate these fraudulent schemes, the IRS established the Excise Summary Terminal Activity Reporting System (ExSTARS) under Internal Revenue Code (IRC) Section 4101(d). ExSTARS acts as a nationwide tracking network that monitors every gallon of taxable liquid fuel (gasoline, diesel, aviation fuel, ethanol, and biodiesel) entering or leaving approved bulk storage terminals across the country.

To make this tracking network function, the IRS matches terminal operator reports (Form 720-TO) against carrier reports (Form 720-CS). If a fuel buyer, supplier, or position holder provides an incorrect identification number, automated matching fails. Form W-13 solves this challenge by serving as an official, certified request for a valid Employer Identification Number, ensuring every transaction recorded at the terminal rack is tied to a verified business entity.

Who Needs to Complete Form W-13?

Form W-13 is completed by commercial entities that buy, sell, transport, or hold inventory in bulk fuel terminals:

Fuel Position Holders: Companies that hold inventory positions in a bulk fuel terminal as recorded on the terminal operator’s books.
Commercial Fuel Buyers and Jobbers: Wholesale distributors and commercial customers who purchase or withdraw taxable fuel from a terminal loading rack.
Bulk Fuel Transport Carriers: Pipeline companies, vessel operators, barge lines, and trucking companies moving liquid petroleum products into or out of approved terminals.
Consignors and Consignees: Businesses named as shippers or receivers on shipping papers, bills of lading, or pipeline transfer manifests.

Who Is Exempt or Not Required to Complete This Form?

Because Form W-13 applies strictly to the bulk terminal distribution level of the fuel industry, most businesses and consumers do not use it:

Retail Fuel Customers: Everyday motorists, small business fleets, and commercial drivers purchasing fuel at local retail gas stations do not complete Form W-13.
General Non-Fuel Businesses: Commercial vendors, service providers, and contractors outside the petroleum industry use standard Form W-9 to provide tax identification details.
Entities Already Verified: Companies that already have an active, verified EIN on file with the terminal operator and have experienced no changes in legal name or business structure do not need to resubmit.
Individuals Without a Business Entity: Natural individuals cannot use personal Social Security Numbers for ExSTARS transactions; all ExSTARS activities must be conducted under a valid EIN.

When to Complete Form W-13: Deadlines and Frequency

Form W-13 operates on an event-driven commercial timeline rather than an annual tax calendar due date:

Prior to Terminal Transactions: You must complete and return Form W-13 when requested by a terminal operator or bulk carrier before initiating your first fuel withdrawal, pipeline transfer, or transport shipment.
No Automatic Expiration: Once provided to the terminal operator, Form W-13 remains valid indefinitely as long as your legal name, business structure, address, and EIN remain unchanged.
Updating After Corporate Changes: If your company reorganizes, undergoes a merger, changes its legal name, or adopts a new Employer Identification Number, you must deliver a revised Form W-13 to all terminal operators and carriers within 30 days.

Where and How to File Form W-13

Form W-13 is handled directly between commercial partners in the fuel distribution chain:

Submitting to the Requester: Deliver your completed and signed Form W-13 directly to the terminal operator, pipeline company, or carrier that requested it. Most major terminal automation systems allow commercial customers to upload the form digitally or complete verified electronic certifications through their customer onboarding portals.

Do Not Mail to the IRS: Do not send Form W-13 to the Internal Revenue Service. The IRS does not process or catalog individual W-13 certificates; the requesting terminal operator or carrier stores the form in their internal compliance records to support their monthly ExSTARS electronic filings.

Special IRS Examination Verification: If the IRS audits a terminal operator’s ExSTARS reporting or investigates an inventory discrepancy, the operator provides the completed Form W-13 directly to the official IRS address as per instructions provided in their examination notice.

Step-by-Step Instructions to Fill Out Form W-13

Form W-13 is a straightforward, single-page document divided into entity identification fields, Part I (Employer Identification Number), and Part II (Certification).

Section / Part	Field Description	Required Information & Operational Rule
Name Line	Legal Entity Name	Enter the business legal name exactly as shown on required federal tax filings and corporate charters.
Business Name Line	DBA / Disregarded Entity	Enter any trade name, “doing business as” (DBA) name, or disregarded entity name, if different from above.
Tax Classification	Federal Tax Status	Check the appropriate box: Individual/sole proprietor, C corporation, S corporation, Partnership, Trust/estate, or LLC.
Address Lines	Business Street Address	Enter the physical or primary mailing address, city, state, and ZIP code of the business.
Requester Box	Requester Details	Enter the name and address of the terminal operator or carrier requesting the form (optional).
Part I	Employer Identification Number	Enter your nine-digit EIN (formatted as XX-XXXXXXX). Social Security Numbers are strictly prohibited.
Part II	Certification & Signature	An authorized owner or principal corporate officer signs and dates under penalties of perjury.

Detailed Walkthrough of Critical Requirements

The Strict EIN Requirement (Part I). This is the most critical difference between Form W-13 and standard Form W-9. Under IRS ExSTARS rules, Social Security Numbers (SSNs) and “Applied For” status are not permitted. Every person or entity engaging in ExSTARS reporting activities must possess an active federal Employer Identification Number (EIN). If you do not have an EIN, you must apply for one immediately using Form SS-4 before completing Form W-13.

Disregarded Entity Rules. If the entity engaging in terminal transactions is a single-member LLC that is treated as a disregarded entity for federal tax purposes, enter the direct owner’s legal name on the “Name” line and the LLC’s name on the “Business name” line. Enter the specific EIN associated with the ExSTARS activity.

Tax Classification Checkboxes. Check the single box that reflects your federal tax classification. If operating as an LLC, check the LLC box and enter the appropriate classification letter (C for C corporation, S for S corporation, or P for partnership).

Part II: Execution Under Penalties of Perjury. The form must be signed and dated by an owner, corporate officer, or legally authorized representative. By signing, you certify under penalties of perjury that the EIN provided is correct and establishes the proper U.S. commercial entity engaging in ExSTARS activities.

Required Documents and Information Needed Before Filling

Before completing Form W-13, assemble the following business records:

IRS EIN Assignment Letter: Official confirmation of your federal Employer Identification Number (Notice CP 575 or Form 147C).
Corporate Formation Records: State-approved Articles of Incorporation, Articles of Organization, or partnership agreements confirming the exact legal entity name.
Terminal Operator / Carrier Request Notice: The onboarding packet or request letter containing the terminal facility’s name and terminal control number (TCN).
IRS Registration (if applicable): A copy of your Form 637 (Application for Registration for Certain Excise Tax Activities) if your business holds an activity letter registration.

Common Mistakes to Avoid

Errors on Form W-13 can result in immediate operational shutouts at the fuel rack. Watch out for these frequent mistakes:

Entering a Social Security Number: Entering a personal SSN instead of an EIN is the leading cause of Form W-13 rejection. The ExSTARS automated database cannot accept SSNs for fuel disbursements.
Writing “Applied For” in Part I: The IRS does not permit temporary or pending number designations for ExSTARS reporting. You must have an officially assigned EIN before terminal access is granted.
Mismatched Legal Names: Entering an informal trade name or operating brand on the “Name” line instead of the exact legal entity name creates automated matching errors in IRS databases.
Sending the Form to the IRS: Mailing Form W-13 to an IRS service center is ineffective; the document must be returned directly to the terminal operator or transportation carrier.
Failing to Notify Operators After Mergers: If your company acquires a new corporate parent or merges under a new EIN, failing to provide updated W-13 forms will cause monthly ExSTARS transaction reports to fail IRS audits.

Penalties for Non-Filing or Errors

Failing to provide Form W-13 or supplying false tax information carries direct statutory penalties and severe commercial consequences:

Immediate Denial of Terminal Access: Under IRS regulations, terminal operators who disburse fuel to unverified parties face substantial regulatory penalties. Consequently, terminal managers will lock your account and refuse to release fuel at the rack until a valid Form W-13 is received.
Statutory Penalty for Failure to Furnish EIN (IRC Section 6723): Under federal tax law, any person who fails to furnish their correct identification number to a requester is subject to a $50 civil penalty for each failure, unless due to reasonable cause.
Civil Penalty for False Information (IRC Section 6682): If an entity provides false information regarding its tax status or withholding credentials, the IRS assesses a mandatory $500 civil penalty.
Criminal Penalties for Fraud (IRC Section 7206): Willfully falsifying a certification on Form W-13 is a federal felony punishable by fines of up to $100,000 ($500,000 for corporations) and imprisonment for up to three years.

Related Forms and Publications

Form W-13 operates within an interconnected system of federal fuel tax returns and terminal tracking documents:

Form 720-TO: Terminal Operator Report (the monthly electronic report filed by bulk fuel terminals detailing all liquid product receipts and disbursements).
Form 720-CS: Carrier Summary Report (the monthly electronic report filed by bulk fuel transport carriers).
Form 720: Quarterly Federal Excise Tax Return (where motor fuel excise taxes are ultimately reported and remitted).
Form 637: Application for Registration (For Certain Excise Tax Activities) (used to register fuel producers, refiners, and terminal operators).
Form 8809-EX: Request for Extension of Time to File an ExSTARS Information Return.
Form SS-4: Application for Employer Identification Number (used to obtain the mandatory EIN).
Form W-9: Request for Taxpayer Identification Number and Certification (the general commercial equivalent).
Publication 3536: Motor Fuel Excise Tax EDI Guide.

Frequently Asked Questions (FAQs)

What is ExSTARS?

ExSTARS stands for the Excise Summary Terminal Activity Reporting System. It is an automated national fuel tracking system developed by the IRS, Department of Transportation, and state revenue departments to track bulk movements of gasoline, diesel, and aviation fuel into and out of storage terminals to prevent tax evasion.

Can a sole proprietorship use a Social Security Number on Form W-13?

No. Unlike standard Form W-9, which allows sole proprietors to provide a Social Security Number, the ExSTARS system strictly forbids SSNs. Sole proprietors engaging in ExSTARS fuel transactions must apply for and provide a valid federal Employer Identification Number (EIN).

What happens if a fuel distributor refuses to complete Form W-13?

If a distributor or buyer refuses to provide Form W-13, the terminal operator will deny access to the facility and refuse to dispense fuel. Terminal operators are held legally accountable for accurate monthly ExSTARS reporting and cannot risk allowing untracked transactions.

How does Form W-13 differ from Form W-9?

Form W-9 is a general tax document used across all industries to collect SSNs or EINs for 1099 reporting. Form W-13 is used exclusively in the petroleum distribution industry for ExSTARS reporting, strictly requires an EIN (no SSNs allowed), and links transactions directly to terminal control numbers (TCNs).

Do I mail Form W-13 to the IRS?

No. You must return the completed Form W-13 directly to the terminal operator, fuel pipeline, or transport carrier that requested it. The IRS does not accept or process individual W-13 forms.

Does Form W-13 expire annually?

No. Form W-13 does not expire at the end of the calendar year. It remains valid indefinitely as long as your legal business name, physical address, and EIN remain accurate on company records.

Conclusion: Key Takeaways

IRS Form W-13, ExSTARS Reporting Information Request for Taxpayer Identification Number and Certification, is an essential compliance document for commercial participants in the motor fuel industry. By establishing verified corporate identities at bulk storage terminals, it powers the federal tracking systems that keep commercial fuel markets transparent and compliant.

For fuel jobbers, position holders, and transport carriers, compliance requires obtaining a valid federal Employer Identification Number, verifying legal corporate names, and delivering the form to terminal operators prior to fuel transfers. Promptly completing Form W-13 ensures uninterrupted terminal rack access, eliminates administrative delays, and keeps your petroleum operations fully aligned with federal excise tax law.

IRS Form W-13 Guide: ExSTARS EIN Request & Certification