What is the 80% NADA rule in New Mexico?

Under MVD regulations, if the stated purchase price on a private sale is less than 80% of the NADA clean trade-in book value, tax is computed on the 80% NADA value unless a notarized bill of sale or condition affidavit is accepted.

Does trade-in reduce tax in New Mexico private sales?

Yes. New Mexico permits a trade-in deduction, allowing you to pay the 4.0% MVET only on the net sales price after deducting the trade-in allowance.

How much is a title and registration in New Mexico?

The New Mexico title fee is $5.00 ($5.00 lien filing fee if financed) and standard annual passenger registration is approximately $34.00.

Verified for 2026 New Mexico Statutory Rates

New Mexico Private Party Vehicle Tax, Tags & Title Calculator

Calculate your true first-year out-of-pocket costs for a private vehicle sale in New Mexico. Accurately accounts for 4% excise/sales tax, $5 certificate of title fee, 1 or 2-year tag registration, and state-specific regulations.

Vehicle & Transaction Details

Enter purchase information to calculate true out-of-pocket costs in New Mexico.

State of Registration5 Regional States Active

Vehicle Type

Purchase Price (Agreed Sale Price)New Mexico 4% tax base

Vehicle Model Year7 years old (≤ 7 yrs rule)

Vehicle Weight ClassificationClass A Passenger

Registration TermNew Mexico tag options

Powertrain / Fuel TypeEV surcharge rules

Financing & Lien FilingLien fee: $5.00

Trade-in Value (Optional)New Mexico: Deductible

New Mexico Statute: New Mexico allows trade-in value on private sales to be deducted from the purchase price before applying the 4.00% fee.

Official Notice & Statutory Disclaimers

Estimates only — not tax or legal advice. Verify with New Mexico MVD.

New Mexico charges a 4% Motor Vehicle Excise Tax statewide; local Gross Receipts Taxes do not apply.

If your purchase price is less than 80% of NADA book value, tax may be assessed on the NADA value.

Trade-in value reduces your taxable base.

County & Local Tax Note: New Mexico's 4.0% Motor Vehicle Excise Tax applies statewide in lieu of the state and local Gross Receipts Tax (GRT); no county or municipal sales taxes apply to titled vehicles.

Estimated Total Breakdown

First-Year Out-of-Pocket Cost

Jurisdiction

New Mexico

Total True First-Year Cost

$639.00

Sales/Excise Tax + Title Certificate + Tags & Registration

Itemized Line ItemEstimated Fee

1Vehicle Sales / Excise Tax (4%)

Calculated at 4% on taxable base of $15,000

$600.00

2Certificate of Title Fee

Standard state title certificate issuance

$5.00

3Lien / Security Filing Fee

Unfinanced / cash purchase (waived $0.00)

$0.00

4Registration & Tag Fee

Base license plates & tags

$34.00

Book Value Assessment Rule (≤ 7 Years Old)

Because this vehicle is 7 years old or newer (7 years old), New Mexico DMV may assess the 4% tax on book value instead of your purchase price unless accompanied by a verified or notarized bill of sale.

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Frequently Asked Questions

New Mexico Private Vehicle Sales & Tag Rules

Essential statutory answers regarding MVA excise taxes, titling requirements, and tag renewal fees.

New Mexico levies a 4.0% Motor Vehicle Excise Tax (MVET) on the purchase price of vehicles under NMSA 1978 § 66-6-20. This tax replaces general Gross Receipts Taxes.