Texas Car Sales Tax Calculator
Determine exact Texas motor vehicle sales tax, official DMV title and license fees (TTL), and dealer documentation fee rules under Texas Tax Code § 152.021.
State Tax Rate: Texas levies a flat 6.25% motor vehicle sales and use tax statewide (Tex. Tax Code § 152.021). Cities, counties, and transit authorities are legally prohibited from adding local sales tax to vehicle sales.
Trade-In Credit: Full credit applies (Tex. Tax Code § 152.041). The 6.25% tax is assessed only on the net difference between vehicle price and trade-in value.
Dealer Doc Fee: Dealer documentation fees are not taxable in Texas (Comptroller Rule 3.72). While there is no statutory cap, fees exceeding $150 require state notification with the Office of Consumer Credit Commissioner (OCCC).
DMV TTL Fees: Official registration is $50.75 base plus $10.00 to $21.50 in county road and bridge fees, along with a $33.00 title fee and $4.75 processing fee.
Vehicle & Tax Parameters
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Texas Out-the-Door Purchase Scenarios (TTL Worked Out)
Comparing common vehicle price tiers in Texas. Demonstrates the exact effect of the flat 6.25% motor vehicle sales tax, statutory trade-in savings, standard non-taxable $150 doc fee, and estimated DMV registration charges:
| Vehicle Tier | Agreed Price | Trade-In Credit | Taxable Basis | Sales Tax (6.25%) | Doc Fee | DMV TTL | Total Out-the-Door Due |
|---|---|---|---|---|---|---|---|
| Budget Commuter | $15,000.00 | $0.00 | $15,000.00 | $937.50 | $150.00 | $175.00 | $16,262.50 |
| Mid-Size Sedan | $25,000.00 | -$4,000.00 | $21,000.00 | $1,312.50 | $150.00 | $200.00 | $22,662.50 |
| Standard Cross-Over (Default) | $30,000.00 | -$5,000.00 | $25,000.00 | $1,562.50 | $150.00 | $200.00 | $26,912.50 |
| Family SUV | $35,000.00 | -$7,000.00 | $28,000.00 | $1,750.00 | $150.00 | $200.00 | $30,100.00 |
| Full-Size Truck / Luxury | $55,000.00 | -$12,000.00 | $43,000.00 | $2,687.50 | $150.00 | $220.00 | $46,057.50 |
Math check: Taxable Basis = Vehicle Price minus Trade-In Allowance. Texas Sales Tax = Taxable Basis x 6.25%. Total Out-the-Door Due = (Price - Trade-In) + Sales Tax + Doc Fee + DMV TTL Fees.
Worked Scenario: Buying a $32,000 Vehicle in Texas
Here is how the numbers break down when purchasing a $32,000 car with a $6,000 trade-in allowance in Texas:
| Line Item | Calculation Rule | Amount ($) |
|---|---|---|
| Vehicle Agreed Price | Base vehicle purchase price | $32,000.00 |
| Less Trade-In Allowance | Deducted from vehicle equity | -$6,000.00 |
| Taxable Purchase Amount | Price minus trade-in (Credit applies) | $26,000.00 |
| Texas Sales Tax (6.25%) | $26,000.00 × 6.25% | $1,625.00 |
| Dealer Documentation Fee | No statutory cap; Texas OCCC requires administrative fi... | $150.00 |
| DMV Title & Registration | Official state titling and plate fee | $180.00 |
| Total Out-the-Door Due | Net balance + tax + fees | $27,955.00 |
Texas Motor Vehicle Tax Laws & Regulations
When purchasing a car in Texas, understanding how your state assesses tax and regulates dealer fees ensures you never overpay at the dealership signing table. Primary legal authority is codified under Texas Tax Code § 152.021.
1. Sales Tax Assessment & Surtaxes
Under Texas Tax Code § 152.021, Texas imposes a flat 6.25% motor vehicle sales and use tax statewide. No local sales tax is added to vehicle purchases.
2. Trade-In Tax Deduction Rules
Trade-in credit applies in full under Texas Tax Code § 152.041. Tax is assessed on the purchase price minus the trade-in allowance. For example, trading in an existing vehicle for $8,000 toward a $35,000 purchase lowers your taxable basis to $27,000, saving you $500.00 in state sales tax ($8,000 × 6.25%).
3. Dealer Documentation Fees & Ceilings
In Texas, dealer documentation fees (doc fees) are not subject to motor vehicle sales tax under Texas Comptroller Rule 3.72. Texas Finance Code § 348.006 authorizes dealers to charge a doc fee for preparing financing and purchase documents. While Texas law does not impose an absolute dollar ceiling, the Office of Consumer Credit Commissioner (OCCC) establishes an administrative threshold ($150). Dealers charging more than $150 must submit cost justification filings to the OCCC. Typical dealer doc fees in Texas average $150 to $300. Check national dealer doc fee limits in our Dealer Doc Fees by State Directory.
4. Private-Party Sales & Standard Presumptive Value (SPV)
For vehicles purchased from an individual seller rather than a licensed dealership, Texas calculates the 6.25% sales tax under Texas Tax Code § 152.0412 using Standard Presumptive Value (SPV). The state compares the declared sale price against 80% of the vehicle's SPV (determined by TxDMV valuation data). Tax is assessed on whichever figure is higher. If a vehicle has mechanical damage or severe cosmetic wear justifying a purchase price below 80% of SPV, the buyer must obtain a certified appraisal on TxDMV Form 14-128 from a licensed dealer or insurance adjuster within 20 calendar days of the sale. Read our detailed comparison in the private party vs dealer car sales tax guide.
Local DMV & County Fee Variations in Texas
While state tax rates provide the baseline, local county surtaxes and DMV plate fees vary across Texas jurisdictions:
| County / Metropolitan Area | Vehicle Tax Rate | Base Registration | Local Road & Bridge Fee | Typical Plate & Title Total |
|---|---|---|---|---|
| Harris County (Houston) | 6.25% | $50.75 | $11.50 | $107.50 |
| Dallas County (Dallas) | 6.25% | $50.75 | $10.00 | $106.00 |
| Tarrant County (Fort Worth) | 6.25% | $50.75 | $10.00 | $106.00 |
| Bexar County (San Antonio) | 6.25% | $50.75 | $11.50 | $107.50 |
| Travis County (Austin) | 6.25% | $50.75 | $11.50 | $107.50 |
| Collin County (Plano/McKinney) | 6.25% | $50.75 | $10.00 | $106.00 |
| Denton County (Denton/Frisco) | 6.25% | $50.75 | $10.00 | $106.00 |
| El Paso County (El Paso) | 6.25% | $50.75 | $21.50 | $117.50 |
Note on TTL fees: Typical plate and title total includes the $33.00 state title fee, $50.75 base annual registration, local road and bridge add-on, $4.75 processing and handling, and $7.50 state vehicle inspection fee. Dealerships often estimate $180 to $200 on initial buyer orders to accommodate temporary transit tags and municipal title courier fees.
Cross-Border & Private-Party Buying Rules
If you purchase a vehicle from an out-of-state dealership, you pay motor vehicle sales tax to Texas when titling the car in your home jurisdiction. Texas grants reciprocal credit for verified sales tax paid to another state up to the 6.25% Texas levy. Read our transactional guide on buying a car out of state to avoid paying duplicate sales tax.
For private-party transactions between individual buyers and sellers, review our guide on private party vs. dealer vehicle sales tax to understand state valuation rules and required bill of sale documentation.
Frequently Asked Questions: Texas Car Sales Tax & TTL
What is the car sales tax rate in Texas?
Texas levies a flat 6.25% motor vehicle sales and use tax statewide under Texas Tax Code § 152.021. Local jurisdictions (such as cities, counties, and transit authorities) are not permitted to add local sales taxes to motor vehicle purchases, meaning the tax rate is 6.25% anywhere in Texas.
Does Texas allow sales tax credit on vehicle trade-ins?
Yes. Under Texas Tax Code § 152.041, your trade-in allowance directly reduces the taxable sales price. If you buy a $30,000 vehicle and trade in your existing car for $5,000, you only pay the 6.25% sales tax on the remaining $25,000 balance, saving $312.50 in state sales tax.
Are dealer doc fees taxable in Texas?
No. Dealer documentation fees are exempt from sales tax in Texas under Comptroller Rule 3.72. The doc fee is included in your total cash due at signing, but it is not added to the taxable vehicle balance.
What is Standard Presumptive Value (SPV) on private car sales?
Under Texas Tax Code § 152.0412, private-party vehicle sales are taxed on the higher of the actual purchase price or 80% of the state's Standard Presumptive Value (SPV). If the car was purchased below 80% of SPV due to defects or high mileage, you must submit a certified appraisal (TxDMV Form 14-128) within 20 calendar days to pay tax on the lower price.
What are official TTL fees when titling a car in Texas?
TTL stands for Tax, Title, and License. Beyond the 6.25% sales tax, Texas state titling fees consist of a $33.00 application fee ($28.00 in select non-attainment counties), a $50.75 base registration fee, a $4.75 processing fee, a $7.50 inspection fee, and local county road and bridge fees ($10.00 to $21.50). Total governmental TTL fees typically range between $106.00 and $117.50.
When is car sales tax due after purchasing a vehicle in Texas?
For dealership transactions, the dealer collects and remits the 6.25% tax on your behalf. For private-party purchases, the buyer must file paperwork and pay sales tax at their local County Tax Assessor-Collector office within 30 calendar days of the sale date to avoid late registration penalties (starting at 5% of tax due).
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Compare statutory rates across all 50 states or recalculate with custom dealer parameters: