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State Guide Last verified July 5, 2026

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

What the desk and the buyer each need to know when a New Jersey 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.

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Every fact sourced to New Jersey official publications below

Short answer

New Jersey taxes vehicle sales at 6.625%, no local add-ons. New Jersey taxes the price after the trade-in is deducted. New Jersey does not collect its sales tax when the buyer will register the vehicle in another state, with Form ST-10 completed at the sale. New Jersey credits sales tax legally paid to another state, so the same dollars are not taxed twice. This covers a retail purchase from a dealer; leases and private-party sales follow different rules in most states.

New Jersey car sales tax quick facts

Last verified July 5, 2026
Sales tax rate on vehicles6.625%, no local add-ons[1]
Trade-in creditNew Jersey taxes the price after the trade-in is deducted.[2]
Selling to an out-of-state buyerNew Jersey does not collect its sales tax when the buyer will register the vehicle in another state, with Form ST-10 completed at the sale.[2]
Credit for tax paid to another stateNew Jersey credits sales tax legally paid to another state, so the same dollars are not taxed twice.[2]
Dealer doc feeNo statutory cap[3] · taxable[2]
Temp tag for the drive homeNew Jersey issues 30-day non-resident temporary registrations for the drive home (dealer-issued e-temp tags or MVC-issued); non-renewable except a 30-day extension for title delays. The buyer then titles in their own state. (valid 30 days)[4]
Out-of-state buyer registrationOut-of-state buyers do not register in New Jersey; they title and register in their home state. For the drive home, MVC issues a 30-day, non-renewable temporary non-resident registration, and the NJ desk handles the ST-10 exemption paperwork.[4]
General information, not tax or legal advice. Rates and rules change. Before you write a check, confirm with the New Jersey Division of Taxation or your accountant. Last verified July 5, 2026. Covers retail dealer sales; leases and private-party sales follow different rules in most states.

From the desk

New Jersey is one-rate simple until the buyer lives somewhere else. The whole out-of-state game runs through the exemption paperwork at delivery: get it signed right and the sale leaves clean; miss it and you own the tax problem. Every biller in the state knows the form number by heart.

Selling to an out-of-state buyer in New Jersey

New Jersey does not collect its sales tax when the buyer will register the vehicle in another state, with Form ST-10 completed at the sale.[2]

The paperwork that makes the exemption real is Form ST-10, completed at delivery. Miss it and the exemption is the dealer's problem, not the buyer's.

Either way, the desk still owns the rest of the cross-border chain: the title work, the temp tag, and making sure the deal doesn't go quiet while paperwork sits. Tracking every in-flight title, temp tag, and out-of-state registration is exactly what Voltra's title tracking is for.

Buying in New Jersey from out of state

If you live in another state and buy in New Jersey, the deciding rule is where the vehicle gets registered: your home state's tax applies at registration, and what happens at the New Jersey sale depends on the row above. New Jersey credits sales tax legally paid to another state, so the same dollars are not taxed twice.[2]

Registration and temp tags

Out-of-state buyers do not register in New Jersey; they title and register in their home state. For the drive home, MVC issues a 30-day, non-renewable temporary non-resident registration, and the NJ desk handles the ST-10 exemption paperwork.[4] New Jersey issues 30-day non-resident temporary registrations for the drive home (dealer-issued e-temp tags or MVC-issued); non-renewable except a 30-day extension for title delays. The buyer then titles in their own state. Validity: 30 days.[4]

Worth knowing about New Jersey

Bordering states

Cross-border deals from New Jersey most often involve Delaware, New York and Pennsylvania. Every pair works differently: check both states’ rules before you write a check.

Vehicle-type exceptions

Boats and other vessels are taxed at half the regular Sales Tax rate with a $20,000 maximum tax per sale; ordinary motor vehicles get the full rate with no cap.[5]

Sources

  1. www.nj.gov/treasury/taxation/businesses/salestax/index.shtml · verified 2026-07-05
  2. www.nj.gov/treasury/taxation/documents/pdf/guides/New-Jersey-Consumer-Automotive-Tax-Guide.pdf · verified 2026-07-05
  3. www.njconsumeraffairs.gov/regulations/Chapter-45A-Administrative-Rules-of-the-Division-of-Consumer-Affairs.pdf · verified 2026-07-05
  4. www.nj.gov/mvc/vehicles/tempnonres.htm · verified 2026-07-05
  5. www.nj.gov/treasury/taxation/faq-boatvessels.shtml · verified 2026-07-05

New Jersey car sales tax questions

New Jersey taxes vehicle sales at 6.625%, no local add-ons. The rate applies to the taxable price the dealer computes at the desk, which is where trade-in treatment and doc fees matter.

New Jersey taxes the price after the trade-in is deducted. That treatment changes the taxable price, so the same car and the same trade produce different tax bills in different states.

New Jersey does not collect its sales tax when the buyer will register the vehicle in another state, with Form ST-10 completed at the sale. The exemption runs on Form ST-10, completed at delivery.

New Jersey credits sales tax legally paid to another state, so the same dollars are not taxed twice.

New Jersey does not cap dealer doc fees by statute. The doc fee is part of the taxable price.

No. New Jersey runs one statewide sales tax rate on vehicle sales, with no county or municipal add-ons, so the desk computes one number regardless of where in the state the buyer lives.