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Reviewed by: William McLee
Reviewed date:
February 10, 2026

What Texas Form 01-142 Is For

Texas Form 01-142 is needed to report and pay the Heavy-Duty Diesel Equipment Surcharge that is part of the Texas Emissions Reduction Plan. The extra charge covers the Texas Comptroller's programs aimed at improving air quality. It includes selling, leasing, and renting diesel equipment that is not in use on the road.

Even if the surcharge is collected along with sales tax, it must be reported separately on this return. This requirement differs from taxes tied to diesel fuel, motor fuels, or gasoline used as fuel. Those fuel-related obligations also carry separate enforcement risks, including fuel tax fraud and fuel tax evasion.

When You’d Use Texas Form 01-142

A taxpayer must file Texas Form 01-142 if they sell, lease, rent, or purchase off-road diesel equipment with 50 horsepower or more that isn't eligible for tax-exempt status. Customers typically pay the additional fee to sellers, who then forward it to the Texas Comptroller's Office. The buyer might have to file directly if the surcharge wasn't collected at the time of purchase.

The amount that surcharge taxpayers collect over a reporting period determines how many times you file. When collections surpass $1,500 per month, monthly filing is usually necessary. However, smaller sums can often be submitted quarterly. Returns are due on the twentieth day of the month that follows the reporting period.

Key Rules or Details for Texas Form 01-142

The current surcharge rate is 1.5 percent for transactions occurring on or after September 1, 2015. Older lease agreements may still be subject to earlier rates, depending on when the contract was signed. If a lease is renewed or extended, the rate in effect at that time generally applies going forward.

Some equipment is exempt from the tax, such as qualifying agricultural products and machinery used in the production of farm products for forestry operations. To demonstrate that the land is being used for farming, you will need a current agricultural/timber number and supporting documents. Most of the time, if an item is exempt from sales tax, it is also exempt from the extra fee.

Step-by-Step (High Level)

Step 1: Confirm taxability and exemptions

Ensure that taxable off-road diesel equipment with sufficient horsepower is included in the transactions. Look for and note any applicable legal exceptions, such as those for using the land for logging or farming, before calculating the surcharge.

Step 2: Gather supporting records

Gather the invoices, lease or rental agreements, and exemption certificates for the time. Verify internal data fields, such as invoice format, sales by part number, and master files, to ensure that the surcharge base is the amount that is taxable before sales tax.

Step 3: Complete Form 01-142 and calculate the surcharge

Provide the details of your business and the reporting period on Form 01-142. Report the total taxable amount after calculating the surcharge using the appropriate rate and accounting for any lease-specific regulations.

Step 4: Apply penalties and interest if applicable

Add penalties and interest in accordance with the Texas Comptroller's guidelines if you file or pay after the deadline. Verify calculations before completing the return.

Step 5: File, pay, and retain records

Once payment has been made using the appropriate method, return the document by mail or Web File to assist with audits, refunds, and statute of limitations requirements; to maintain the GL and liability accounts current; and to keep all source records current.

Common Mistakes and How to Avoid Them

  • Charging surcharge on exempt equipment: Verify agricultural use and timber operation exemptions before collecting the surcharge, and retain exemption certificates, along with the ag/timber number, as supporting documentation.

  • Using the incorrect surcharge rate: Confirm that the 1.5 percent rate applies to transactions after September 1, 2015, and use the original lease contract date to select the correct rate.

  • Missing filing deadlines: File by the 20th day after each reporting period and set internal reminders to reduce penalties, interest, and compliance notices.

  • Improper refund handling: Refund the customer first or obtain written consent before filing a refund claim or amended return with the Texas Comptroller’s Office.

  • Maintain a firm record retention policy: Keep invoices, contracts, and supporting files organized throughout the statute of limitations period to ensure audit requests can be answered promptly.

What Happens After You File

After the return is filed, the Texas Comptroller processes it and credits the account with the funds. Electronic filing usually results in a faster confirmation than mailing a paper return. If you made changes or requested a discount, the company may review supporting documentation.

If the Comptroller finds mistakes or missing paperwork, the taxpayer may receive a notice requesting additional records or clarification. You may be required to pay penalties and interest if you file your taxes late, and your outstanding balance may increase. If someone engages in a particularly egregious act involving a fuel tax scheme, the state government may need to collaborate with Texas prosecutors or district attorneys to ensure the law is enforced.

FAQs

Who must file Texas Form 01-142?

When the surcharge is applicable, all parties involved in taxable off-road heavy-duty diesel equipment transactions—sellers, lessors, renters, and buyers—must file. If the seller failed to collect it, buyers may file on their own. Maintain records that back up your filing stance.

Is this surcharge equivalent to motor fuel taxes?

No, the taxes on motor fuels and dyed diesel do not include the surcharge. Various laws and enforcement avenues address fuel tax fraud, fuel tax evasion, and fuel tax schemes. This specific return focuses on the TERP tax surcharge on qualifying equipment transactions.

Can I amend a previously filed return?

You can file an amended return if you discover a mistake, like overpaying a surcharge. Typically, you must either record a reimbursement agreement or return the customer's money before requesting relief. To support updated filings, keep accurate records.

Which agency administers this surcharge?

The Texas Comptroller handles Texas Form 01-142 and related surcharge reporting. Other programs, like those run by the Texas Department of Motor Vehicles, are not similar to this filing. If you are dealing with vehicle-related surcharges, ensure the correct agency is involved before submitting the forms.

Where can I obtain the official form?

Texas Form 01-142 is available through the Texas Comptroller's office website. Some users also access forms through third-party repositories such as US Legal Forms. Always confirm you are using the current version before filing.

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