🏗️ Texas Construction Sales Tax Guide
(Simple Rules Every Contractor Must Follow)
⚠️ The #1 Rule: Everything Depends on Contract Type
Texas treats real property contractors in two completely different ways:
🟢 1. Lump-Sum Contract (Most Common)
What it means:
- One total price (labor + materials combined)
- No separation on invoice
Tax treatment:
- ✅ You PAY tax on materials
- ❌ You DO NOT charge sales tax to your customer
Key concept:
👉 You are the end consumer
🔵 2. Separated Contract
What it means:
- Materials and labor are listed separately
Tax treatment:
- ❌ You DO NOT pay tax on materials (use resale certificate)
- ✅ You MUST charge sales tax on materials
Key concept:
👉 You are acting as a retailer
🧠 Your Situation (Most Contractors)
If:
- You paid tax on materials
- Your subcontractors didn’t charge tax
- Work involves real property
👉 You are operating under a LUMP-SUM contract
💰 How to Invoice (Critical Section)
✅ If You Paid Tax on Materials (Lump-Sum)
✔ Correct Invoice Format:
- One total price
- No sales tax charged
Example:
Construction Services (Labor + Materials) .......... $50,000
Sales Tax ......................................... $0.00
TOTAL ............................................. $50,000
🚫 Do NOT:
- Add sales tax
- Break out taxable materials
👉 You already paid the tax — you cannot charge it again.
🔌 Subcontractors (Common Confusion)
If subs don’t charge tax:
- They are providing real property services
- You are the end user
Result:
- Subcontractor = no tax
- Their cost = part of your total job cost
🏠 Residential vs 🏢 Commercial Rules
🏠 Residential Construction
- Typically NOT taxable to customer
- Lump-sum is standard
🏢 Commercial (Nonresidential)
🔴 BIG DIFFERENCE:
| Type of Work | Tax Rule |
|---|---|
| New Construction | Usually NOT taxable (lump-sum) |
| Repair / Remodel | ✅ FULLY TAXABLE |
👉 This is where most audits happen.
🚨 Audit Triggers (Very Important)
Avoid these mistakes:
- ❌ Charging tax when you already paid tax
- ❌ Paying AND collecting tax (double taxation)
- ❌ Invoice doesn’t match contract type
- ❌ Confusion between GC and subcontractor roles
✅ Clean Compliance Framework
Step 1 — Choose Contract Type BEFORE the Job
- Lump-sum → simpler, safer
- Separated → more control, more risk
Step 2 — Match Everything
| Area | Lump-Sum | Separated |
|---|---|---|
| Pay tax on materials | ✅ Yes | ❌ No |
| Charge customer tax | ❌ No | ✅ Yes (materials only) |
| Invoice format | One total | Itemized |
💡 Recommended Language for Contracts
“This is a lump-sum contract for improvement to real property. Contractor has paid applicable sales/use tax on materials.”
🧾 Sample Invoice (Best Practice)
Lump-Sum (Most Common)
Construction Services (Labor, Materials, Subcontractors) .......... $72,000
Sales Tax ......................................................... $0.00
TOTAL ............................................................. $72,000
🌳 Decision Tree (Field-Ready)
Step 1: Is this real property?
- YES → continue
- NO → different rules
Step 2: Are materials separated?
NO → Lump-Sum
- Pay tax on materials
- No tax to customer
YES → Separated
- No tax on materials
- Charge tax to customer
Step 3: Using subcontractors?
- No change to tax treatment
- Still based on YOUR contract
🚪 Special Case: Subdivision Gates (HIGH-RISK AREA)
🚨 Key Rule:
👉 HOA / shared property = Commercial
🆕 New Installation
- Lump-sum → NO tax to customer
- Separated → tax on materials
🔧 Repair / Maintenance (MOST COMMON)
🔴 ALWAYS TAXABLE
Even if:
- You paid tax on materials
👉 You MUST charge tax on the FULL amount
Example:
Gate Repair Service ............. $5,000
Sales Tax (8.25%) .............. $412.50
TOTAL .......................... $5,412.50
⚠️ Common Contractor Mistake
“I paid tax on materials, so I don’t charge tax”
❌ WRONG for:
- Commercial repair
- HOA work
- Maintenance services
🧠 Simple Rule for Your Team
🏢 Commercial / HOA
👉 Repairs = TAXABLE
🏠 Residential
👉 Usually NOT taxable
✅ Final Takeaway
👉 The biggest risk is NOT the tax itself —
👉 It’s mismatching:
- Contract type
- Invoice format
- Tax treatment
That’s what triggers audits.
Texas Construction Sales Tax Guide