What is the Louisiana vehicle sales tax rate?

The Louisiana state sales tax on motor vehicles is 4.45%, the same as the general state rate. On top of that, parish and local jurisdictions add their own sales tax, so most buyers pay a combined rate between roughly 8% and 10%.

Does a trade-in reduce my Louisiana car sales tax?

Yes. Louisiana lets you subtract the trade-in allowance from the purchase price before tax is calculated, so you are only taxed on the difference. A $30,000 car with a $10,000 trade-in is taxed on $20,000.

Is sales tax based on where I live or where I buy?

Louisiana vehicle sales tax is generally collected at the rate for the parish where the vehicle will be registered, which is normally your residence. Buying out of parish does not let you avoid your home parish's local rate.

Do dealer rebates lower the taxable price?

Manufacturer rebates generally do not reduce the taxable amount in Louisiana — tax is computed on the price before the rebate is applied. Dealer discounts that lower the actual sale price, by contrast, do reduce the taxable base.

Is this the exact amount I will pay?

It is a close estimate of the sales/use tax only. Title, plate, and handling fees are separate, and exact local rates vary by parish and municipality. Confirm your combined rate and final figure with the Louisiana OMV or dealer.

Louisiana Car Sales Tax Calculator

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Buying a car in Louisiana means paying the 4.45% state sales tax plus your parish and local rates, which together commonly exceed 9%. This calculator applies both, after subtracting any trade-in, so you can see the real tax bill before you sign.

How it works

Tax is computed on the price after the trade-in credit, using a combined rate:

taxable amount = purchase price − trade-in allowance
state tax      = taxable amount × 4.45%
local tax      = taxable amount × local rate
total tax      = taxable amount × (4.45% + local rate)

Louisiana applies the same 4.45% state rate to vehicles as to general goods, but the local component is what varies — pick the combined parish/city rate for where the vehicle is registered, not where the dealer sits.

Example and notes

A $30,000 vehicle with a $10,000 trade-in is taxed on $20,000. At the 4.45% state rate plus a 5% local rate (9.45% combined), the sales tax is $1,890. Manufacturer rebates do not lower the taxable base in Louisiana, so tax is figured on the price before the rebate. Registration, title, and plate fees are charged separately from this sales tax.