Houston Sales Tax Rate — Economic Context & Calculation
Economic Context. Houston is the 4th-largest city in the US and the undisputed energy capital of the world.
The combined sales tax rate in Houston is 8.250%, composed of the Texas state rate of 6.250% plus a local portion of 2.000%.
Houston is known for Space Center Houston (NASA Johnson Space Center), diverse food scene, Texas Medical Center (world's largest medical complex), and Theater District. Businesses operating in these sectors should verify product-specific taxability with Harris County / City of Houston.
Key industries driving Houston's economy include Energy/Oil & Gas, Healthcare, Aerospace, Port/Logistics — each may have distinct sales tax treatment under Texas law.
Visitor note: Space Center Houston (NASA), Museum District (19 museums), Theater District (performing arts), Houston Zoo, Minute Maid Park (Astros), NRG Stadium (Texans), Galleria Mall, Buffalo Bayou trails.
The formula to calculate sales tax for any purchase:
Sales Tax Amount = Taxable Price × Combined Tax Rate
For a $150.00 purchase in Houston: tax is $12.38 ($150.00 × 0.08250), total is $162.38.
Local Tax Authority & Special Rules in Houston
Sales tax in Houston is administered locally by Harris County / City of Houston. Houston's 8.
Special tax rules specific to Houston:
- TX state rate 6.25% + local add-ons (Harris County + Houston) up to 2% cap = 8.25% combined. Groceries are EXEMPT from Texas sales tax. TX has no state income tax. Back-to-school sales tax holiday in August on clothing/supplies under $100.
Houston-specific: Energy (dozens of Fortune 500 HQs), healthcare (world's largest medical complex), and aerospace (NASA) create massive B2B and international transaction tax considerations.
| Taxing Authority | Harris County / City of Houston |
| State Sourcing Model | Origin Sourcing. In-state sales are taxed based on the seller's location, while remote sellers charge destination rates. |
| Economic Nexus Threshold | $500,000 in gross sales, revenue-only with no transaction test, measured over the preceding 12 months. |
| Filing Frequency | Monthly, Quarterly, or Annually |
| Standard Due Date | Typically on or before the 20th of the month following the filing period |
Harris County's local add-on combines with the City of Houston's rate to reach the 2% local cap, resulting in the standard 8.
Sales Tax vs. Use Tax for Houston Businesses & Consumers
While sales tax is collected by registered vendors at the point of sale, use tax is a self-assessed tax that applies when taxable goods are purchased from a vendor who did not collect sales tax. The rates for both are identical: 8.250%.
If you purchase equipment, software, or supplies from out-of-state merchants and no tax was charged, you are legally obligated to report and pay use tax to Texas Comptroller of Public Accounts. Use tax audits are common — failure to accrue on untaxed invoices is a frequent audit finding.
Energy/Oil & Gas and Healthcare and Aerospace and Port/Logistics companies operating in Houston should maintain rigorous use tax accrual procedures, especially for equipment and specialized software purchased from out-of-state vendors.
Sales Tax Registration & Permits for Houston Businesses
Businesses with physical presence or economic nexus in Texas must register with Texas Comptroller of Public Accounts before collecting tax.
Houston's position as a hub for Space Center Houston (NASA Johnson Space Center), diverse food scene, Texas Medical Center (world's largest medical complex) means remote sellers shipping to this city should proactively monitor Texas's nexus thresholds.
For full registration, filing, exemption certificate, and audit guidance, see the Texas sales tax guide.
Resale Certificates & Tax Record-Keeping in Houston
Businesses in Houston must maintain resale certificates and transaction records to comply with Texas tax audits. If you sell wholesale, obtain a valid resale certificate from the buyer.
Given the concentration of energy/oil & gas businesses in Houston, auditors will scrutinize exemption documentation and out-of-state vendor invoices closely. Keep all records for at least the state-mandated retention period.
For detailed guidance, see the Texas sales tax page.
