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

What Texas Form 01-142 Is For

Texas Form 01-142 must be used to report and submit the Heavy-Duty Diesel Equipment Surcharge under the Texas Emissions Reduction Plan. The surcharge applies to transactions involving qualifying off-road diesel vehicles made in Texas. It is collected separately from other state taxes.

The Texas Emissions Reduction Plan, also known as the TERP Tax, provides funding for initiatives aimed at reducing diesel emissions throughout the state. These programs encourage improved air quality and cleaner engines across the country. Dealers and lessors are required to collect and report the surcharge.

The form is not related to income tax filings; it is only applicable to qualifying transactions involving equipment. It has nothing to do with Texas Education Freedom Accounts or any other program pertaining to education. Every transaction must be thoroughly examined by businesses before being reported.

When You’d Use Texas Form 01-142

A business must file Texas Form 01-142 when it sells, leases, or rents qualifying off-road diesel equipment rated at 50 horsepower or more. This requirement applies to both new and used equipment. The equipment must be used off public highways.

Filing frequency depends on the amount of surcharge collected. Businesses collecting less than $1,500 per month file quarterly returns. Companies that make $1,500 or more a month are required to file on a monthly basis.

The twentieth day of the month after the month during which the reporting period took place is the due date for returns. Penalties and interest are assessed for late filing. Errors may require a modified return or a refund claim.

Key Rules or Details for the Applicable Tax Period

The surcharge rate for 2010 was 2 percent and was determined by the transaction date or the date of the original lease agreement. The rate remains unchanged regardless of when lease payments are made. The surcharge rate may change if the lease is renewed or extended.

Covered equipment includes things like loaders, concrete pavers, bore or drill rigs, cement and mortar mixers, and crawler tractors or dozers. Tax-exempt equipment is usually not subject to the surcharge. All exemptions must have proof.

This rule might not apply to activities that have to do with farming or logging. Some repair parts, as well as specific exempt equipment, parts, and facilities, are sold separately and are not included. Businesses need to keep accurate records of their invoices and exemption certificates.

Step-by-Step (High Level)

Step 1: Confirm filing frequency and gather records

Find the right filing frequency based on the average monthly surcharge collections. Assemble transaction support, including sales records and part number reports.

Step 2: Identify taxable and exempt transactions

Find out which diesel equipment transactions are eligible for the surcharge. Exempt transactions should only be excluded if there is reliable proof to support them.

Step 3: Apply the correct surcharge rate

Use the surcharge rate that goes with the date of the lease or transaction. Check that the rate used is in line with the rules for the reporting period.

Step 4: Complete the return with accurate totals

To enter totals, use consistent internal reporting, such as records of sales by part number. Add up the totals and see how they compare to the source invoices and internal summaries.

Step 5: Submit, pay, and update internal accounting

Keep a copy of the proof of filing, ensure timely payment, and return it. To minimize the need for corrections, keep the GL account up to date and adhere to internal controls, such as maintaining the master file and using a consistent format for all invoices.

Common Mistakes and How to Avoid Them

  • Applying the surcharge to exempt equipment: Confirm whether the purchase qualifies for agricultural or timber exemptions before charging the surcharge to prevent overcollection and refund complications.

  • Using the wrong surcharge rate on leases: Apply the rate tied to the original lease contract date, not the payment date, and document the contract date to avoid amended returns.

  • Keeping poor supporting documentation: Retain invoices, exemption support, and GL detail within the applicable statute of limitations so audit requests can be satisfied quickly.

  • Misclassifying transactions in GL accounts: Use consistent GL coding for surchargeable versus exempt items and reconcile entries to source documents before filing.

  • Not reviewing exemption eligibility before billing: Validate exemption claims at the time of sale or lease setup and keep verification records to reduce disputes and assessment risk.

What Happens After You File

The Texas Comptroller puts the return and payment into the taxpayer's liability account after they file. Most of the time, electronic filings are reviewed promptly. Processing paper filings takes longer.

Late filings are subject to penalties and interest. Since these amounts increase the total amount owed, they must be paid before refunds are issued. Evidence of customer credit or repayment is required for refund claims.

Returns could be chosen for an audit. The Comptroller reviews documents to ensure they are accurate and comply with the permanent standards and nexus requirements. Correct records back up claims of compliance.

FAQs

Who must file Texas Form 01-142?

Any business that sells, leases, or rents qualifying off-road diesel equipment in Texas and collects the surcharge is required to file Texas Form 01-142.

Are there year-specific credits or exclusions for 2010?

There are no stimulus credits or unemployment exclusions related to this surcharge for 2010. The form applies only to equipment transactions under the Texas Emissions Reduction Plan.

How do amended returns work?

Amended returns are used to correct errors or support a refund claim. Taxpayers must document corrections and follow Comptroller procedures.

How long must records be retained?

Records should be retained for the statute of limitations period, which is generally four years. Longer retention may apply if an audit is pending.

Do court cases affect this surcharge?

This surcharge remains unchanged due to Supreme Court decisions, legislative history disputes, or environmental rulings, such as Riverside Bayview. Citing Justice Kennedy, wetlands adjacent to, or Federal Register notices, do not change the requirements for filing.

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