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Texas Form 01-142 (2024): Diesel Equipment Surcharge

Learn how to file Texas Form 01-142 (2024), who must file, deadlines, surcharge rules, exemptions, and how to handle late or amended diesel equipment returns.
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Published date:
February 10, 2026
Updated date:
April 23, 2026

Download the Official 2024 Form Texas

Download the official Form Texas for tax year 2024 and review each section before filling it out. Using the wrong tax year form will result in rejection — always confirm you have the 2024 version before starting.

Form Texas — Texas Form 01-142 (2024): Diesel Equipment Surcharge

Tax Year 2024  ·  PDF Format

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What Texas Form 01-142 Is For

Texas Form 01-142 must be used to report and pay the Heavy Duty Equipment Tax on specific off-road diesel equipment under the Texas Emissions Reduction Plan. The surcharge applies to qualifying equipment with diesel engines that have a power rating of at least 50 horsepower.

The Texas Emission Reduction Plan Fund, which supports initiatives to lessen air pollution from diesel-powered machinery operating in the state, is financed by this surcharge. It is collected independently from the Texas Sales and Use Tax and is overseen by the Texas Comptroller.

The surcharge applies to taxable transactions involving qualifying equipment sold, leased, or rented for use in the state of Texas. It does not replace other applicable taxes and must be reported using this specific form.

When You’d Use Texas Form 01-142

Texas Form 01-142 must be filed by sellers who collect the 50HP Diesel Engine Surcharge on qualifying off-road equipment used in Texas. Purchasers must also file if the seller does not collect the surcharge at the time of sale.

The amount of surcharge collected each month determines the frequency of filing. Generally, taxpayers who receive less than $1,500 per month are required to file quarterly; those who receive $1,500 or more are required to file monthly.

Amended returns are filed when correcting errors such as overstated taxable sales, incorrect tax rate calculations, or misapplied exemptions.

Key Rules or Details for 2024

The extra charge applies only to diesel-powered equipment used off-road and equipped with an engine of at least 50 horsepower. No matter what it is used for or how much it costs, equipment below this limit is exempt from the surcharge.

The Transportation Code, Health and Safety Code, and Tax Code all offer various exemptions. Equipment used for farming, timber operations, and particular manufacturing processes is an example of common exemptions.

Generally, there are four years from the date the surcharge was due and payable to file a refund claim. After this time, claims are usually rejected.

Step-by-Step (High Level)

Step 1: Identify taxable vs. exempt diesel equipment transactions

Review period sales and lease records and separate taxable qualifying diesel equipment transactions from exempt sales supported by documentation (such as agricultural or timber operation use). Verify the accuracy of the sales by part number and invoice format.

Step 2: Calculate taxable receipts and surcharge due

Total taxable sales or lease amounts subject to the surcharge are then multiplied by the applicable rate to compute the surcharge due.

Step 3: Apply the timely filing discount

If the return and full payment are submitted by the due date, calculate and apply the timely filing discount and confirm it is reflected correctly on the return.

Step 4: Apply allowable credits when supported

Apply credits only when eligibility is met, such as after refunding the surcharge to the customer or obtaining written consent from the customer. Keep support for any overpayment credit claimed.

Step 5: File and pay using an approved method

Submit the return electronically or on paper, based on filing requirements. Remit payment by check or an approved electronic method, including direct deposit when available, and retain proof of filing and payment.

Common Mistakes and How to Avoid Them

  • Charging surcharge on under-threshold equipment: Verify horsepower and engine specifications before collecting or remitting the surcharge so only qualifying equipment is assessed.

  • Missing exempt transactions: Obtain and retain valid exemption certificates for agricultural use and timber operation equipment to prevent overpayment and audit exposure.

  • Using the wrong filing frequency: Monitor monthly surcharge collections and switch to the required filing frequency as soon as thresholds are met to avoid penalties.

  • Missing the timely filing discount: Calculate and apply the discount when eligible and file on time to ensure the remittance amount is not overstated.

  • Filing refund claims without support: Keep proof that the customer was refunded or provided written consent, along with transaction documentation, to prevent refund claim denials.

What Happens After You File

The Texas Comptroller processes the taxpayer's return and deposits the money into their liability account. Generally speaking, electronic filings receive confirmations faster than paper filings.

Submissions for refund claims are handled separately and could take several months to complete. Depending on how the taxpayer's account is set up, authorized refunds are either sent by check or direct deposit.

Returns can be selected for audit review. Maintaining complete records, including invoices and exemption documents, promotes compliance and reduces the likelihood of an audit.

FAQs

Who must file Texas Form 01-142?

Sellers who collect the surcharge and purchasers who owe the surcharge but did not collect it from the seller must file Texas Form 01-142.

Does the surcharge apply to motor vehicles?

No, the surcharge applies to off-road diesel equipment. Motor vehicles and recreational vehicles registered for highway use are subject to different tax provisions.

Are agricultural products always exempt from the surcharge?

No, only qualifying equipment used directly for agricultural use is exempt. Documentation is required to support the exemption.

Is this surcharge related to Texas Education Freedom Accounts or Education Savings Accounts?

Texas Education Freedom Accounts and Education Savings Accounts are not part of the TERP tax administration. They are part of Education Freedom initiatives and Educational Policy programs.

How long does the Comptroller have to audit a return?

The audit period generally follows the four-year statute of limitations, unless extended under specific circumstances.

Is the surcharge separate from the Texas Sales and Use Tax?

Yes, the surcharge is reported separately and does not replace or reduce Texas Sales and Use Tax obligations.

Why do unrelated scientific terms sometimes appear in enterprise systems?

Although metadata unrelated to the content may be included by large compliance platforms that oversee multimedia content, SEO-optimized flipbooks, or new site deployments, this does not change the tax filing requirements.

https://www.states.gettaxreliefnow.com/State%20of%20Texas/Form%2001-142%20(11-18%20I%2010).pdf
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