Is installing, maintaining, or repairing a residential mosquito misting system taxable in Texas, and does it matter whether pesticide is involved or who originally sold the system?

Plain-English summary

The Texas Comptroller drew a bright line for a licensed pest control company's residential mosquito misting business: whenever pesticide is being added, the entire charge is taxable structural pest control — but repair or winterization work on an existing system, done WITHOUT adding pesticide, is nontaxable residential real property maintenance, regardless of whether the company originally sold that system.

Mosquito misting systems (underground piping, pumps, nozzles, a control box) become permanent improvements to a homeowner's realty once installed. Selling and installing a new system is a structural pest control service — Texas taxes the identification, prevention, or control of insect infestations by chemical or mechanical means — so the company must collect tax on the ENTIRE charge, including any separately-stated installation, maintenance, or winterization fees bundled with the sale. Adding pesticide to an EXISTING system is likewise fully taxable pest control, again on the whole charge regardless of separate line items. But when the company later does a job that involves NO pesticide — say, patching a leak, replacing a broken nozzle, or winterizing (flushing and draining) a system, including systems the company never sold — that's just ordinary residential real property repair/maintenance, which Texas doesn't tax as a service at all. Whether tax applies to the MATERIALS on that repair job depends on billing structure: lump-sum billing means the company pays tax to its own suppliers and charges the customer nothing extra; itemized/separated billing means the company can buy materials tax-free with a resale certificate but must charge the customer tax on the materials line only (never the labor).

What this means for you

Pest control companies offering irrigation-style misting or spray systems

The dividing line for taxability isn't "is this an installation, repair, or maintenance job" — it's "does this job involve pesticide application." Any job that adds pesticide is fully taxable structural pest control on the entire charge; any job that's pure mechanical repair/maintenance without pesticide is nontaxable, even performed by the same company on the same type of system.

Businesses billing customers for combined installation/service jobs

Bundling nontaxable repair work with taxable pest-control work into one lump sum won't help you avoid tax — but keeping genuinely pesticide-free repair/maintenance jobs SEPARATE from pesticide-application jobs can legitimately keep those repair jobs out of the tax base.

Accountants and tax professionals

The controlling framework combines 34 Tex. Admin. Code § 3.356(a)(8)(C) (structural pest control, whole-charge taxability) with § 3.356(i)(1)(C) (the "unrelated service" carve-out for standalone maintenance) and § 3.291(b)(3)-(4) (residential repair/remodeling materials taxability, which turns on lump-sum vs. separated billing).

Common questions

Q: Is winterizing a mosquito misting system always taxable?
A: No — it depends on whether pesticide is also being added. Winterization bundled with a pesticide application or new installation is fully taxable; standalone winterization with no pesticide is nontaxable residential maintenance.

Q: Does it matter if the company repairing the system originally sold and installed it?
A: No, per this ruling — a pesticide-free repair/maintenance job is nontaxable residential real property work regardless of who originally installed the system.

Q: If I bill a repair job as one lump sum, do I owe tax on the materials?
A: Under lump-sum billing for a nontaxable residential repair, you pay tax to your own suppliers when you buy the materials and don't charge your customer separately; under separated/itemized billing, you can buy materials tax-free with a resale certificate but must charge your customer tax on the materials line.

Q: Can another pest control company rely on this ruling?
A: No. It's binding on the Comptroller only for the requesting taxpayer and facts presented, and cannot be relied on by any other taxpayer.

Citations and references

Statutes and rules:

• Tex. Tax Code § 151.0101(a)(11) (Taxable Services — real property services)
• Tex. Tax Code § 151.0048 (Real Property Services — includes structural pest control)
• Tex. Tax Code § 151.007 ("Sales Price" or "Receipts" — total charge taxable regardless of separate statement)
• 34 Tex. Admin. Code § 3.356(a)(8)(C) (structural pest control services, definition)
• 34 Tex. Admin. Code § 3.356(i)(1)(C) (unrelated services — standalone maintenance carve-out)
• 34 Tex. Admin. Code § 3.291(b)(3), (4) (Contractors — residential repair/remodeling, lump-sum vs. separated billing)

Source

• STAR search: https://star.comptroller.texas.gov/search?doc_type_code=L&tax_type_code=SST
• Opinion: https://star.comptroller.texas.gov/view/201709011L

Original ruling text

September 26, 2017

RE: Private Letter Ruling # 171440466

Dear **:

We issue this private letter ruling in accordance with Rule 3.1, Private Letter Rulings and General Information Letters.[ENDNOTE 1]1 Detrimental reliance relief is provided in accordance with Rule 3.10, the Taxpayer Bill of Rights.

You requested guidance regarding the taxability of pest control and related services.

Relevant Facts

** (Taxpayer) is licensed by the Texas Department of Agriculture to provide structural pest control services. Taxpayer designs, sells, and maintains custom residential mosquito misting services. Taxpayer’s services include installation, addition of pesticide, maintenance, and winterization.

A residential mosquito misting system works in a manner similar to the operation of an underground irrigation system. A misting system mixes water and pesticides, which it delivers though underground piping to nozzles that spray a fine mist intended to reduce the presence of mosquitos, fleas, ticks, flies, wasps, and spiders in the homeowner's yard. The misting systems include equipment such as a pump, a pesticide tank, piping, spray nozzles, and tubing. The system also has a control box wired into the home’s electrical system that allows the homeowner to schedule times during which the system operates. Once installed, this type of mosquito misting system becomes an improvement to realty.

Based on our meeting on May 16, 2017, we understand that Taxpayer also accepts jobs to repair a nozzle, fix a leak, or winterize a mosquito misting system that Taxpayer did not sell and for which Taxpayer does not provide pesticide or any related pest control services. We also understand that these mosquito misting systems are incorporated into the customer’s realty in a manner similar to the systems described above.

Questions, Rulings, and Analysis

Question One: Are sales of residential mosquito misting systems and related services taxable?

Ruling: The sale and installation of a residential mosquito misting system is a structural pest control service. Taxpayer should collect tax on the total charge to the customer for a residential mosquito misting system, including any amounts charged for subsequent system maintenance or winterization, even if those amounts are separately stated.

The addition of pesticides to a residential mosquito misting system is also a structural pest control service. Taxpayer should collect tax on the total charge to the customer for the addition of pesticides to a mosquito misting system, including any amounts charged for installation, maintenance, or winterization, even if those amounts are separately stated.

Analysis:

Section 151.0101(a)(11) includes real property services in the list of taxable services. Section 151.0048 states that the term “real property services” includes structural pest control services.

Rule 3.356(a)(8) (Real Property Service) defines structural pest control services as activities performed for the purpose of identifying, preventing, controlling, or eliminating infestation of insects by use of chemical or mechanical means. The definition adds that the term “includes related activities, such as inspection or evaluation concerning the nature or extent of an infestation; reports; or performance of services to control pest or insect infestation.” See Rule 3.356(a)(8)(C).

Structural pest control services include services that are part of the sale of a residential mosquito misting systems, such as installation or winterization of the mosquito misting system. Structural pest control services also include the addition of pesticides to an existing residential mosquito misting system.

The total amount charged for providing a structural pest control service is taxable. Section 151.007 (“Sales Price” or “Receipts”). This is true regardless of whether the charges are separately stated or billed as a lump-sum charge.

Taxpayer should collect tax on the total charges to customers for mosquito misting systems, including the amounts charged for installation of the system, winterization, and ongoing system maintenance, if any. See Rule 3.356(b). Taxpayer should also collect tax on the total charges to customers for adding pesticides to residential mosquito misting systems.

Question Two: When Taxpayer performs repairs or maintenance on a residential mosquito misting system that Taxpayer did not sell or install are the repair charges taxable?

Ruling: Repairing or maintaining a residential mosquito misting system is residential real property repair or maintenance. When residential repair and maintenance is sold on a stand-alone basis, without the provision of a structural pest control service, it is not taxable.

When Taxpayer is not providing a structural pest control service, and Taxpayer bills customer for repairing a residential mosquito misting system on a separated basis, Taxpayer should collect tax on the separately-stated charge for incorporated materials.

When Taxpayer is not providing a structural pest control service, and Taxpayer bills customers on a lump-sum basis, Taxpayer should not collect tax on the lump-sum charge and should pay tax to its suppliers on all materials, equipment, and consumable supplies at the time of purchase.

Analysis:

Residential real property repair, restoration, or maintenance is not a taxable service. See Rule 3.291(b) (Contractors). Because residential mosquito misting systems are incorporated into the customer’s realty, repair and maintenance services performed on those systems are not taxable if they are unrelated to the provision of a structural pest control service.

Rule 3.356(i) states that a service will be considered unrelated if it is not provided as a part of the taxable service and is commonly provided on a stand-alone basis. The rule provides examples of unrelated services, including maintenance charges for real property. See Rule 3.356(i)(1)(C). Unrelated repair services could include, for example, patching a leak or replacing a broken nozzle in a residential mosquito misting system, as long as the repair did not include a structural pest control service, such as adding pesticides. Unrelated maintenance services could include winterizing the system (i.e., flushing and draining the lines), as long as the maintenance did not include a structural pest control service.

The materials used in residential real property repair or maintenance jobs are taxable. On these residential real property repair or maintenance jobs, whether Taxpayer or its customer owes tax on the materials used in residential real property repair or maintenance jobs depends upon the type of contract or billing. Under a lump-sum contract or billing, Taxpayer makes a single charge for the labor and materials billed for the residential real property repair or maintenance job. Under a separated contract or invoice, Taxpayer makes separate charges for the materials and for the labor.

Under a lump-sum contract, Taxpayer must pay tax to its suppliers on all materials, equipment, and consumable supplies at the time of purchase. Taxpayer does not charge tax on the lump-sum charge to its customer. See Rule 3.291(b)(3).

Under a separated contract, Taxpayer may give suppliers a resale certificate instead of paying tax on materials incorporated into the customer's mosquito misting system. Taxpayer must collect tax on the incorporated materials charge to its customer, but no tax is due on the labor charge. Taxpayer owes tax on its purchases of consumable supplies and equipment for use on the job. See Rule 3.291(b)(4).

The Texas Tax Code and Texas Administrative Code are accessible at www.comptroller.texas.gov/taxes/.

If you have questions about this private letter ruling, please email us through our website at https://comptroller.texas.gov/web-forms/tax-help/ and reference Private Letter Ruling # 171440466.

Sincerely,

Tax Policy Division – Indirect Taxes

Texas Comptroller of Public Accounts

ENDNOTE

1. Unless otherwise indicated, all references herein to “Section” are to the Texas Tax Code, and all references to “Rule” are to Title 34 of the Texas Administrative Code.