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

What Texas Form 01-142 Is For

For some off-road diesel equipment transactions in the state of Texas, the Heavy-Duty Diesel Equipment Surcharge must be reported and paid using Texas Form 01-142. The Texas Emissions Reduction Plan, which finances initiatives to lower emissions and improve statewide air quality, is supported by this surcharge.

The surcharge applies in addition to Texas Sales and Use Tax and generally covers off-road diesel-powered equipment rated at 50 horsepower or more. The Texas Comptroller oversees the administration and enforcement of the surcharge, acting under the authority granted by state regulations.

When You’d Use Texas Form 01-142

When selling, leasing, or renting eligible off-road heavy-duty diesel equipment in Texas, taxpayers use Texas Form 01-142. The surcharge is usually collected from customers at the time of the transaction by dealers, rental companies, and lessors.

Buyers may also need to submit the form directly if the surcharge wasn't collected, which could occur if they purchased an item from a private party or a vendor from another state. Returns are usually due by the 20th day after the end of the reporting period. How often you have to file depends on how frequently you get collections.

Key Rules or Details for 2012

The Heavy-Duty Diesel Equipment Surcharge tax rate for transactions in 2012 was 2% of the sales price, lease payment, or rental charge. The date of the transaction, not the date the return is filed, determines the correct rate.

The renewal date determines the rate for that time period if a lease is renewed or extended. To qualify for the surcharge, the covered equipment must be diesel-powered, have at least 50 horsepower, and be designed for off-road use.

There are a few exceptions. When the right paperwork is kept, equipment used only for farming, qualifying timber operation equipment, and transactions that are tax-exempt under Texas sales and use tax are usually not counted.

Step-by-Step (High Level)

1. Confirm the filing period and due date

Identify whether the return is filed monthly or quarterly based on prior collections and current filing instructions. Plan to file by the 20th day after the end of the reporting period.

2. Review transactions and separate exempt activity

Gather sales, leases, and rentals of eligible off-road diesel equipment during the designated time frame, and distinguish between taxable and non-taxable transactions. Check to see if any amounts that were excluded are backed up by records about timber operations or agricultural use.

3. Gather supporting records needed for reporting

Compile internal summaries, lease agreements, and invoices to support the figures on the return. The taxable base, the applicable tax rate, and any pertinent tracking data, such as sales by part number, should all be displayed in the records.

4. Complete the taxpayer and account information carefully

Please enter the Texas taxpayer number, business name, address, and reporting period exactly as they are recorded with the Texas Comptroller. Before finalizing amounts, make sure that internal records match the right GL and liability accounts.

5. Calculate the surcharge for the period

Multiply lease payments, rental fees, and taxable sales by the relevant item percentage that was applied when calculating the surcharge. To find the amount owed for the reporting period, add the totals for each reportable category.

6. Apply credits, refunds, or discounts when supported

Only make changes that are backed up by records and documents from within the organization. If a refund claim is being processed, ensure that the customer has been reimbursed for the underlying surcharge and that this is properly documented.

7. Add penalties and interest if the return is late

Include late filing and late payment amounts when the due date has passed, and a balance remains unpaid. Review calculations carefully to avoid underpayment notices and additional interest.

8. Submit the return and retain proof of filing

Follow the Texas Comptroller's instructions for filing the return and making the payment. Keep confirmation, proof of payment, and other supporting documents for your records and as a backup for audits.

Common Mistakes and How to Avoid Them

  • It's common to make the mistake of using the wrong surcharge rate. Always verify the transaction date or the original lease to ensure the correct tax rate is applied.
    .
  • Charging a surcharge on transactions that are not subject to it causes compliance problems. Before you exclude a transaction, make sure it is for agricultural use, timber operation, or another tax-exempt purpose.

  • Errors in calculations can slow down processing. Check the totals carefully and make sure they match the records that back them up, like invoices and summaries of sales by part number.

  • Failing to collect the surcharge at the point of sale creates out-of-pocket liability. Ensure invoice format and internal procedures consistently apply the surcharge to qualifying transactions.

What Happens After You File

After Texas Form 01-142 is filed, the return is reviewed by the Texas Comptroller for accuracy, completeness, and proper surcharge computation. Generally speaking, electronic returns are processed more quickly than paper returns.

If discrepancies are discovered, the Comptroller may send out a notice asking for more data or evidence to resolve the matter. While overpayments may be reimbursed or applied as credits, underpayments may result in assessments with penalties and interest.

Returns that have been filed become a permanent part of the taxpayer's account history. According to the Statute of Limitations, the Comptroller usually has four years from the original filing to record returns that are permanently recorded in the taxpayer's account history. The Comptroller typically has four years from the original due date to review the return, per the Statute of Limitations.

Who must file Texas Form 01-142?

Sellers, lessors, and renters of qualifying off-road diesel equipment are required to file the return. Buyers must file when the seller did not collect the surcharge.

Does the surcharge apply to motor vehicles or recreational vehicles?

No, the surcharge applies to off-road equipment, not to licensed motor vehicles or recreational vehicles designed for highway use.

Are agricultural products subject to the surcharge?

When the proper paperwork is presented, equipment used only for agricultural purposes is typically exempt. The surcharge does not apply to agricultural goods in and of themselves.

Can amended returns be filed for the 2012 tax year?

Yes, subject to limitations on filing methods, amended returns may be filed to fix mistakes or submit a refund claim.

What payment options are available?

When account information is on file, approved payment methods may include electronic payments and direct deposit for refunds.

How long should records be kept?

Records related to Form 01-142 should generally be retained for at least four years to comply with audit and review requirements.

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