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New Mexico Car Sales Tax Calculator

New Mexico doesn't charge regular sales tax on a vehicle purchase. Instead it charges a Motor Vehicle Excise Tax of 4% on the price after your trade-in allowance, due whenever a vehicle is titled. Enter your numbers to see the estimate.

Last reviewed: September 25, 2026Reviewed by Michael Steve

Calculate Your New Mexico Car Sales Tax

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The selling price on your buyer’s order.

What the dealer credits you.

State
New MexicoChange state

Condition

New Mexico's excise tax applies to the price paid for the vehicle, which includes dealer fees.

Advanced options

Enter your own amounts where you know them. They replace our estimates.

Replaces the state estimate.

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Plates, inspections, add-ons.

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Estimated out-the-door price

$0.00

Enter a vehicle price to see your estimate.

Vehicle price
$0.00
Trade-in
—
Taxable amount
$0.00
Motor Vehicle Excise Tax (4%)
$0.00
Title fee
$0.00
Registration fee
$0.00
Dealer / documentation fee
—
Estimated total
$0.00
How this estimate was calculated

    Estimates are for informational purposes only. Actual taxes and fees may vary based on your location, vehicle, transaction and current state rules.

    Estimated New Mexico Car Sales Tax

    Motor Vehicle Excise Tax4%
    Local taxNone on vehicles
    Trade-inLowers taxable price
    Dealer feeTaxed with the price; limit not confirmed

    In place of sales tax, New Mexico charges a Motor Vehicle Excise Tax of 4% on the price paid for the vehicle, which comes to $1,000.00 on a $25,000 purchase with no trade-in.

    The tax is due every time a vehicle is titled in New Mexico, less any trade-in credit. For a non-dealer sale, the state can use the N.A.D.A. average trade-in or wholesale value instead if the declared price is less than 80% of that value.

    A vehicle that is legitimately transferred as a gift is not a sale, so no excise tax is due on it.

    New Mexico Car Title and Registration Fees

    New Mexico's title fee is $5, plus a $2 administrative fee applied to every MVD transaction, for $7 total. Registration is a separate annual fee based on the vehicle's weight and model year, so we have not added a single flat figure; enter your own amount under Advanced options.

    FeeAmountNotes
    Title feeTitle$7.00A $5 title fee plus a $2 administrative fee applied to every MVD transaction.
    Registration feeRegistrationVariesBased on the vehicle's weight and model year, roughly $27–$62 for a one-year registration. Enter your amount under Advanced options.
    Dealer documentation feeSet by the dealerVariesWe have not confirmed a specific New Mexico dollar limit on the dealer documentation fee.

    How New Mexico Car Sales Tax Is Calculated

    1. Start with the purchase price.
    2. Subtract your trade-in credit.
    3. Multiply the result by the Motor Vehicle Excise Tax rate of 4%.
    4. Add the $7 title fee and your weight- and age-based registration fee to reach your out-the-door price.

    For a private-party sale, New Mexico can substitute the N.A.D.A. average trade-in or wholesale value for the excise tax base if the price you declare is less than 80% of that value.

    New Mexico's registration fee depends on the vehicle's weight and model year, so check the Motor Vehicle Division for your figure. Read how a trade-in affects sales tax to see how New Mexico's excise tax compares with other states.

    Example New Mexico Car Sales Tax Calculation

    This example assumes the declared price is accepted as the tax base, without the N.A.D.A. value substitution that can apply to some private-party sales.

    Vehicle price$25,000.00
    Trade-in−$5,000.00
    Taxable amount$20,000.00
    Motor Vehicle Excise Tax (4%)$800.00
    Title fee$7.00
    Registration feeNot included
    Estimated total$20,807.00

    This is an illustration, not a quote.

    Frequently Asked Questions About New Mexico Car Sales Tax

    Does New Mexico charge sales tax on a car?

    Not regular sales tax. New Mexico charges a Motor Vehicle Excise Tax of 4% instead, due whenever a vehicle is titled, applied to the price after your trade-in credit.

    Does a trade-in reduce New Mexico's excise tax?

    Yes. The tax is 4% of the price paid less any trade-in credit.

    Is a private-party sale valued differently in New Mexico?

    It can be. If the price you declare is less than 80% of the N.A.D.A. average trade-in or wholesale value, the state may use that value as the tax base instead.

    How much is the title fee in New Mexico?

    $5, plus a $2 administrative fee applied to every MVD transaction, for $7 total. Registration is a separate fee based on weight and model year.

    Sources

    Taxes and fees change, so confirm exact amounts with the agencies above.

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