How to Start an Irrigation or Landscaping Business in Texas: TCEQ Irrigator License

If you want to start a landscaping or irrigation business in Texas, the first thing to know is that the state does not issue a general landscaping license. Texas has no statewide general contractor license and no state general business license either. Irrigation work is different. Texas requires a license for irrigation, and the Texas Commission on Environmental Quality (TCEQ) issues it, not the Texas Department of Licensing and Regulation.

This guide covers the TCEQ irrigator license, what it takes to get it, and how to set up the business around it. It is informational content, not legal or tax advice. For questions about your entity structure, contracts, insurance, or tax position, talk to a qualified attorney or CPA.

What the Texas Irrigation License Covers

TCEQ issues three license types that matter for irrigation work:

• Landscape Irrigator (LI). This is the main credential for businesses that install, alter, repair, and service irrigation systems. The LI is the broadest of the three, and it supersedes the Irrigation Technician license.
• Irrigation Technician (IT). This license is for people who work under a licensed irrigator. If you plan to hire technicians to do system work, they need this credential and must work under a licensed irrigator.
• Irrigation Inspector. This license covers inspecting irrigation systems. It requires additional coursework, covered below.

None of these licenses requires a degree, a set number of years of education, or prior work experience. The requirements that remain are a TCEQ-approved training course, a TCEQ application with a criminal history attestation, a fee, and a passing exam score.

Keep the backflow prevention assembly tester credential separate in your planning. It is also issued by TCEQ, but it is a backflow testing credential, not a landscaping license. It is one of the required courses for the inspector license, and it does not stand in for the irrigator license.

Landscaping and lawn care itself need no state license. Mowing, trimming, planting, mulching, and routine maintenance do not require a TCEQ irrigation license. Applying pesticides or herbicides for pay is a different matter. That work may require a license from the Texas Department of Agriculture (TDA), so check with TDA before you spray anything commercially.

What You Need Before You Start

Gather these items before you begin. Most of them are inexpensive, but several take weeks, so plan the order carefully.

• A chosen license type. Decide between the LI, IT, and inspector licenses based on the work you will actually perform. Most owners who install or repair systems start with the LI.
• A TCEQ-approved training course for the license you chose. Confirm the course is approved before you pay for it.
• The TCEQ application, completed in full, along with the criminal history attestation. Have accurate, complete details about any criminal history ready before you start the form.
• The $111 application fee. Confirm the amount for the specific license you are applying for on the TCEQ site before you pay.
• Time for the exam. The computer-based exam requires a passing score of at least 70 percent in each section. The Landscape Irrigator exam runs about six hours, so block out a full day.
• A business entity, if you want one. A Texas LLC Certificate of Formation (Form 205) carries a $300 filing fee. A sole proprietorship needs no state formation filing, but you may still need an assumed-name certificate.
• A Texas registered agent with a physical street address in Texas, if you form an LLC or corporation.
• A sales and use tax permit from the Comptroller, if your services or goods are taxable. Permits are issued at no charge and typically take two to three weeks.
• Commercial insurance quotes. Clients and municipalities often ask for proof of coverage before they hire irrigation contractors, so ask your insurer what they will require before you bid.

Step-by-Step: Getting Your Texas Irrigator License and Business Set Up

Step 1: Map Each Service to Its License Requirement

Write down every service you plan to sell, then sort each one into one of three buckets:

• Irrigation system work such as installing, repairing, or altering sprinkler zones, valves, and controllers. This needs a TCEQ irrigation license.
• Landscape and lawn maintenance such as mowing, edging, trimming, mulching, and planting. This needs no state license.
• Chemical applications such as commercial pesticide or herbicide treatments. Check with TDA on whether you need a license.

Some work sits on the line. Adjusting a controller, replacing a sprinkler head, or fixing a leak can count as irrigation work. Ask TCEQ directly whether your routine service calls require a license. Do not assume routine maintenance is exempt, because the answer determines whether you can bid those jobs at all.

Step 2: Set Up the Business Entity and State Registrations

Decide how you will operate before you file anything. Your options and filing paths differ:

• LLC. File a Certificate of Formation (Form 205) with the Texas Secretary of State through SOSDirect. The filing fee is $300. The name must include an organizational designation such as Limited Liability Company, LLC, L.L.C., LC, L.C., or Limited Company, and it must be distinguishable from existing filings. You can check availability with the Secretary of State at (512) 463-5555 and search existing filings at https://www.sos.state.tx.us/corp/searches.shtml.
• Corporation. File a Certificate of Formation (Form 201) with the Secretary of State. The filing fee is also $300.
• Sole proprietor. You do not form a separate entity, but if you operate under a name other than your own, you file an assumed-name certificate. Sole proprietors file with the county clerk in each county where they maintain a business office or conduct business. County clerk fees vary by county, so confirm the amount locally.

Expedited service is available through Texas Express if you need a faster turnaround. Standard Expedite costs $50 per document and is typically processed within two to three business days. Next Day Expedite costs $500 per document, and Same Day Expedite costs $750 per document, with a noon filing cutoff for each. Expedite fees are in addition to the filing fee. Without expedite, the Secretary of State does not publish a guaranteed processing time, and electronic filing through SOSDirect is the fastest standard option.

An LLC or corporation must keep a registered agent in Texas at all times. The agent must be a Texas resident individual, a qualifying domestic entity, or a qualifying foreign entity. The agent cannot be your company itself, and the office must be a physical street address where the agent can be served in person during business hours. A PO box or mail forwarding service alone does not meet the requirement. Changing the registered agent or office costs $15.

Texas has no corporate income tax and no personal income tax. Entities are subject to the franchise tax, a privilege tax administered by the Comptroller. For the 2026 and 2027 report years, the no-tax-due revenue threshold is $2,650,000. Entities at or below that amount owe no franchise tax, but they must still file a Public Information Report with the Comptroller by May 15 each year. That report is filed with the Comptroller, not the Secretary of State. Texas also has no requirement to publish a notice of formation.

Step 3: Complete a TCEQ-Approved Training Course

Choose a course approved by TCEQ for the license you want. Confirm that approval on the TCEQ website before you enroll, because a course that is not approved will not satisfy the requirement. Course prices vary by provider and are not set by the state, so compare providers and ask what is included, such as study materials and exam scheduling help. Keep your completion certificate, since you will need it for the application.

Step 4: Submit the TCEQ Application and Criminal History Attestation

Complete the TCEQ application for your license type, then sign the criminal history attestation. Answer every question fully and accurately. Errors or missing answers can delay processing, and a mistake on the attestation creates problems that are harder to fix later than a delay.

Pay the $111 application fee. Confirm the fee for the specific license type, since the IT and inspector licenses may carry different amounts. Keep copies of everything you submit, including your course certificate, the application, the attestation, and your payment receipt.

Expect processing to take about three to four weeks. Confirm with TCEQ whether you must receive approval before you can schedule the exam, so you do not book a testing date you cannot use.

Step 5: Pass the Computer-Based Exam

The exam is computer-based, and you must score at least 70 percent in each section to pass. A strong overall score does not make up for a failed section, so study every topic area. The Landscape Irrigator exam takes about six hours. Plan for a full day, eat beforehand, and bring the identification the testing center requires.

Study with the official TCEQ materials and your training course content. Focus on system design basics, water conservation practices, backflow prevention, and the installation and repair topics that appear most often in your training. Ask TCEQ about retake rules and waiting periods before you test, so you know what a failed section costs you in time.

Step 6: Add Inspector and Backflow Requirements if You Need Them

If you want the Irrigation Inspector license, you need more than the general irrigation course. You must complete a backflow prevention assembly tester course and a water conservation or water audit course. The backflow tester is a separate TCEQ credential, so confirm what TCEQ requires to hold it, what it lets you do, and whether it fits your business model. Remember that the backflow tester credential is not a landscaping license.

Step 7: Check the Pesticide and Chemical Rules Before You Spray

Before you offer weed control, fertilizer applications, or any pesticide service for pay, contact the Texas Department of Agriculture. Commercial application of pesticides or herbicides may require a TDA license, and that requirement is separate from the TCEQ irrigation license. Do not start chemical work until TDA confirms what applies to your operation.

Step 8: Register Your Tax and Sales Setup

If you sell taxable goods or services, apply for a sales and use tax permit through the Comptroller at https://comptroller.texas.gov/taxes/permit/. The permit is free and typically takes two to three weeks. The state sales tax rate is 6.25 percent, but whether your specific services are taxable depends on the service, so confirm with the Comptroller before you quote prices. Also note that Texas has no statewide business license. Review the Texas Business Licenses and Permits Guide from the Business Permit Office within the Texas Economic Development and Tourism Office to identify any other permits for your activity. Your city may require its own registration or permit, so check with your city before you start work in its jurisdiction.

Tips for Getting Through the Process Faster

• Start the training course first. It is the step that controls how soon you can file the application and sit for the exam.
• Build a timeline around TCEQ processing. Plan for roughly three to four weeks of application processing, then add time for scheduling the exam.
• Use a single calendar. Track the SOS filing, the Comptroller permit, the TCEQ application, and the exam date together so one delay does not surprise you.
• Ask TCEQ before you bid. If you are unsure whether a job needs a license, get the answer in writing before you quote.
• Keep your records clean. Save your course certificate, application, payment receipts, and exam results in one place.

Common Mistakes to Avoid

• Assuming Texas has a landscaping license. It does not. The irrigation license is the TCEQ credential that matters for system work, and lawn maintenance needs no state license.
• Treating the backflow tester credential as a landscaping license. It is a separate TCEQ credential with a narrower purpose.
• Doing irrigation work before the license is in hand. Clients expect the work to be done right, and unlicensed irrigation work can put your business at risk.
• Hiring a technician without checking the license structure. An IT must work under a licensed irrigator, so plan your crew around that rule.
• Using a PO box as your registered agent. Texas requires a physical street address in the state where the agent can be served in person.
• Skipping the Public Information Report because you owe no franchise tax. Entities under the $2,650,000 threshold still file it by May 15.
• Assuming county licensing applies to your business. Counties license nothing except the assumed-name filing by sole proprietors at the county clerk.
• Spraying chemicals before checking with TDA. Commercial pesticide and herbicide work may require a separate license.
• Underestimating the exam. A six-hour exam with a 70 percent minimum per section leaves little room for weak areas.

Expected Results

A TCEQ irrigation license may help you bid irrigation installation and repair work, and it may give clients a verifiable credential to check before they hire you. It does not guarantee contracts, pricing power, or a specific level of revenue. Results depend on your local market, your pricing, your reputation, and how well you manage the business.

Timing is the main variable you control. Build your schedule around the training course, the roughly three to four weeks of TCEQ processing, the exam date, and the filing timelines for your entity and permits. Delays are common when an application is incomplete or when the training course and exam schedule do not line up.

Agencies to Confirm With

Several fees and rules in this process depend on details that change or vary by case. Confirm these points with the named agency before you commit money:

Agency	What it handles	Confirm with it
Texas Commission on Environmental Quality (TCEQ)	Landscape Irrigator, Irrigation Technician, Irrigation Inspector, and backflow tester credentials	Fee for each license type, course approval, exam scheduling, retake rules, and renewal requirements
Texas Secretary of State	LLC and corporation formation, name availability, and entity filings	Current filing requirements and expedite options at https://www.sos.state.tx.us/corp/index.shtml
Texas Comptroller of Public Accounts	Franchise tax, Public Information Report, and sales and use tax permits	Whether your services are taxable and your filing obligations at https://comptroller.texas.gov/taxes/
Texas Department of Agriculture (TDA)	Commercial pesticide and herbicide applications	Whether your planned chemical services require a license
County clerk	Assumed-name certificates for sole proprietors	The filing fee in your county, since fees vary

Next Steps

Start by deciding which services you will sell, then sort them into irrigation, maintenance, and chemical work. Enroll in an approved TCEQ training course for the license that fits your plan, and confirm the current fee and exam rules with TCEQ before you pay. Then form your entity, set up your registered agent, and apply for any permits your activity requires. Keep every receipt and certificate in one folder from the first day.

This article is informational content, not legal or tax advice. Licensing rules, fees, and processing times can change, so verify each figure with the agency that administers it before you rely on it. If your business has complex ownership, contracts, liability exposure, or tax questions, consult a qualified Texas attorney or CPA.