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Louisiana Car Sales Tax, Trade-In Credit, and Out-of-State Rules

What the desk and the buyer each need to know when a Louisiana deal crosses state lines: the rate, the trade-in math, the exemption paperwork, and the drive-home tags. Every fact links to the official source.

Check an Out-of-State Deal Jump to Quick Facts

Every fact sourced to Louisiana official publications below

Short answer

Louisiana taxes vehicle sales at 5% state plus local add-ons (depends on location). Louisiana taxes the price after the trade-in is deducted. All of this describes a retail purchase from a dealer; leases and private-party sales run on different rules in most states.

Louisiana car sales tax quick facts

Last verified August 27, 2026
Sales tax rate on vehicles5% state plus local add-ons (depends on location)[1]
Trade-in creditLouisiana taxes the price after the trade-in is deducted.[2]
Selling to an out-of-state buyerNot yet verified against an official source. Confirm with the Louisiana Department of Revenue. Official site →
Credit for tax paid to another stateNot yet verified against an official source. Confirm with the Louisiana Department of Revenue. Official site →
Dealer doc feeCapped at $425[3] · Taxability: Not yet verified against an official source. Confirm with the Louisiana Department of Revenue. Official site →
Temp tag for the drive homeLouisiana's drive-out instrument is a temporary registration plate issued by the Office of Motor Vehicles under R.S. 47:511.3 (Temporary registration permits; motor vehicles being driven out of state), available when the owner purchased the vehicle intending to permanently take it out of Louisiana. The fee is $5.50, the plate expires 30 days from issuance, and only one may be issued per vehicle. (valid 30 days)[4]
Out-of-state buyer registrationLouisiana OMV accepts a driver's license or ID card issued by another state as the vehicle owner's identification on a title and registration application, so an out-of-state-licensed owner can title and register a vehicle here. Sales and use tax is assessed at OMV based on the domicile of the vehicle, on the selling price less any qualifying trade-in and rebate.[5]
General information, not tax or legal advice. Rates and rules change. Before you write a check, confirm with the Louisiana Department of Revenue or your accountant. Last verified August 27, 2026. Covers retail dealer sales; leases and private-party sales follow different rules in most states.

From the desk

Louisiana stacks parish rates on the state number and the combined figure moves more than almost anywhere. Quoting a deal without the parish rate is quoting wrong, and out-of-parish buyers make it a daily exercise.

Selling to an out-of-state buyer in Louisiana

Not yet verified against an official source. Confirm with the Louisiana Department of Revenue. Official site →

The tax answer is only half the job. The desk still has to move the title, issue the temp tag, and keep the deal from stalling while paperwork crosses state lines, and that chain is what Voltra's title tracking holds in one view.

Buying in Louisiana from out of state

If you live in another state and buy in Louisiana, the deciding rule is where the vehicle gets registered: your home state's tax applies at registration, and what happens at the Louisiana sale depends on the row above.

Registration and temp tags

Louisiana OMV accepts a driver's license or ID card issued by another state as the vehicle owner's identification on a title and registration application, so an out-of-state-licensed owner can title and register a vehicle here. Sales and use tax is assessed at OMV based on the domicile of the vehicle, on the selling price less any qualifying trade-in and rebate.[5] Louisiana's drive-out instrument is a temporary registration plate issued by the Office of Motor Vehicles under R.S. 47:511.3 (Temporary registration permits; motor vehicles being driven out of state), available when the owner purchased the vehicle intending to permanently take it out of Louisiana. The fee is $5.50, the plate expires 30 days from issuance, and only one may be issued per vehicle. Validity: 30 days.[4]

Bordering states

Cross-border deals from Louisiana most often involve Arkansas, Mississippi and Texas. No two pairings behave the same; run the exact combination through the out-of-state checker.

Vehicle-type exceptions

Louisiana's motor vehicle sales tax applies to anything subject to the state's Vehicle Registration License Tax Law, so automobiles, trucks, motorcycles, motor homes, mobile homes, boat and utility trailers, campers and off-road vehicles are all covered by the same tax.[6]

Louisiana car sales tax questions

Louisiana taxes vehicle sales at 5% state plus local add-ons (depends on location). What that rate hits is the taxable price the desk computes, and trade-in treatment and doc fees decide that number.

Louisiana taxes the price after the trade-in is deducted. Because that treatment sets the taxable price, an identical car and trade can owe different tax on either side of a state line.

Louisiana caps dealer doc fees at $425.