Assumption Parish car sales tax: 10% to 10.5%

The rate in Assumption Parish

Vehicle sales tax in Assumption Parish is not a single number — it runs from 10% to 10.5% depending on which city you register in. Most of the county is at 10%.
That is above the 9% most Louisiana counties charge — about $350.00 more tax on a $35,000 car than the typical county in the state.
8 other counties in Louisiana charge the same rate, out of 64.

Where the rate changes inside Assumption Parish

10.5% — Napoleonville.
10% — Belle Rose, Labadieville, Napoleonville (outside city limits), Paincourtville, Pierre Part, Plattenville.
This is why a county-wide figure is not enough here: two addresses in Assumption Parish can carry different tax on the same car, and in 1 of its ZIP codes the boundary runs through the middle so the ZIP alone cannot settle it. The calculator asks you which side you are on.

What a $35,000 car actually costs in Assumption Parish

Sales tax (10% — Belle Rose, Assumption Parish) — $3,543.60
Doc fee (state cap) — $436.00
Title fee — $68.50
OMV handling fee — $8.00
License plate fee (2 years) — $70.00
Tag agent convenience fee (up to) (est.) — $27.00
Out the door — $39,153.10 on a $35,000 used car, before any down payment or financing.

ZIP codes in Assumption Parish

70339, 70341, 70372, 70390, 70391, 70393.
Any of these resolves to Assumption Parish in the calculator, at whichever of the county's rates applies to that ZIP.

Assumption Parish against nearby counties

Beauregard Parish is 9.75% — $87.50 LESS tax on a $35,000 car than Assumption Parish.
Concordia Parish is 9.75% — $87.50 LESS tax on a $35,000 car than Assumption Parish.
Iberville Parish is 10.25% — $87.50 MORE tax on a $35,000 car than Assumption Parish.
East Baton Rouge Parish is 10.5% — $175.00 MORE tax on a $35,000 car than Assumption Parish.
This follows where you REGISTER, not where the dealer is, so a lower rate nearby only helps if you actually live there. It is not something you can choose at the dealership.

Run your own numbers

Vehicle price

$

The negotiated or advertised price, before tax and registration.

Your ZIP code

Tax and registration follow where YOU register — not the dealership.

Dealer's ZIP code (optional)

A few states tax at the dealer's location instead of yours. If you know the dealer's ZIP, enter it for an exact tax.

Condition

New Used CPO

Fuel

EV/PHEV surcharges apply in many states.

More options — trade-in, rebates, doc fee, add-ons

Common questions

Why is the car sales tax different in parts of Assumption Parish?

Cities inside the county can levy their own rate on top of the county and state rate, so the combined figure changes at the city line. In Assumption Parish it ranges from 10% to 10.5%.