How is sales tax charged on the installation of a new lawn sprinkler system — what part of the cost, if any, is taxed on the invoice, and at what rate?

Plain-English summary

A taxpayer asked the Comptroller how sales tax should be charged on the installation of new lawn sprinkler systems — specifically, what part of the invoiced cost (if any) is taxed, and at what rate.

The Comptroller responded that installing a new sprinkler system is regarded as an improvement to realty. Because the taxpayer described billing by invoice (not a signed contract), the answer turns on how the customer is billed:

• Lump-sum billing: If the installer bills the customer one lump-sum amount, the customer owes no tax at all. Instead, the installer owes tax on all the tangible personal property (materials) it purchases to do the job, paying that tax to its suppliers.
• Itemized (separated) billing: If the installer itemizes the bill, separating the materials charge from the installation labor charge, the installer must collect sales tax from the customer on the materials charge only — labor is not taxable. In this scenario the installer may buy its materials tax-free by giving suppliers a resale certificate instead of paying tax up front.
• Tax rate: When the bill is itemized, the correct tax rate to collect on the materials is the rate in effect at the location of the jobsite.

The letter also flags that if the client instead repairs or remodels an existing sprinkler system at a nonresidential location, the tax responsibilities are different (though the letter does not spell out what that different treatment is).

What this means for you

Landscapers and sprinkler/irrigation installers

How you structure your invoice determines who owes the tax. Bill a single lump sum for a new sprinkler system installation and you (the installer) bear the tax burden on your materials purchases, with no tax charged to the customer. Itemize the bill — breaking out materials from labor — and instead you must collect sales tax from the customer on the materials line, at the tax rate for the jobsite's location, while your labor charge stays untaxed. Itemizing also lets you buy materials tax-free from your suppliers by issuing a resale certificate.

Homeowners and property owners getting a new system installed

Whether you're charged sales tax on your invoice for a new sprinkler system depends entirely on how your installer bills you — a single lump-sum price versus an itemized breakdown of materials and labor — not on the nature of the job itself.

Businesses or property owners repairing or remodeling an existing system

This letter is specifically about new installations. It notes that repairing or remodeling an existing sprinkler system at a nonresidential location carries different tax responsibilities, but does not explain what those are — a separate inquiry would be needed for that scenario.

Accountants and tax professionals

This letter is a useful illustration of Texas's lump-sum vs. separated-contract framework as applied to a real-property-improvement job (sprinkler/irrigation installation), including the jobsite-rate rule for itemized materials charges and the resale-certificate mechanism for installers on separated jobs.

Common questions

Q: Is installing a new lawn sprinkler system considered a taxable service or an improvement to real property?
A: The Comptroller regards installation of a new sprinkler system as an improvement to realty.

Q: If my sprinkler installer bills me one lump-sum price, do I owe sales tax?
A: No. Under a lump-sum billing, the customer owes no tax; the installer instead owes tax on the materials it purchased to do the job.

Q: If the invoice separates materials from labor, what gets taxed?
A: The installer must collect sales tax from the customer on the materials charge. The labor charge is not taxable.

Q: What sales tax rate applies to the materials on an itemized sprinkler installation invoice?
A: The rate in effect at the location of the jobsite.

Q: Can the installer avoid paying tax on materials it buys for an itemized job?
A: Yes — on a separated/itemized job, the installer may purchase the materials tax-free by issuing suppliers a resale certificate in lieu of tax, since the installer will collect tax from the customer on those materials instead.

Q: Does this letter also cover repairing or remodeling an existing sprinkler system?
A: Only briefly — it notes that repairing or remodeling an existing system at a nonresidential location involves different tax responsibilities, without detailing them, and states the opinion is based on the facts presented and could change with different facts.

Citations and references

No specific statutes or rule numbers were cited in this letter.

Source

• STAR search: https://star.comptroller.texas.gov/search?doc_type_code=L&tax_type_code=SST
• Opinion: https://star.comptroller.texas.gov/view/9207L1192E12

Original ruling text

July 17, 1992

Dear **:

Thank you for your recent letter asking how sales tax is to be charged on the
installation of new lawn sprinkler systems.

You asked (1) what part of the cost, if any, is charged on the invoice?, and
(2) if taxed, at what rate?

Response: The installation of a new sprinkler system is regarded as an
improvement to realty.

The installer's responsibility for sales tax will depend on whether the system
is installed under lump-sum or separated contracts. If there is no signed
contract, then tax is determined by how the customer is billed. Since you spoke
of an invoice, I will assume there is no contract, only billings, and will
answer accordingly.

If the person installing the new sprinkler system bills the customer a lump-sum
amount, the customer owes no tax. The installer owes tax on all tangible
personal property purchased to perform the job. The installer pays tax to the
suppliers from which the materials are purchased.

If the person installing the new sprinkler system itemizes the billing to the
customer, separating all materials charges from installation labor, the
installer must collect sales tax from the customer on the charge for materials.
The charge for labor is not taxable. The installer may buy the materials tax
free by issuing suppliers resale certificates in lieu of tax.

When the bill for the new installation is itemized, the correct tax rate to be
collected on materials will be the rate in effect at the location of the
jobsite.

Should your client repair or remodel an existing sprinkler system at a
nonresidential location, your client's responsibilities for tax will be
different.

This opinion is based on the facts presented. If there are additional or
different facts, the opinion may change.

If you have any questions or need more information, you may call me toll free
at 1-800-252-5555, extension 3-4633. The regular number is 512/463-4633. You
may also write to the Tax Administration Division.

Sincerely,

Wanda Hutcheson
Tax Administration Division