Short answer
Massachusetts taxes vehicle sales at 6.25%, no local add-ons. Massachusetts taxes the price after the trade-in is deducted. Massachusetts collects its own sales tax at the point of sale even when the buyer will register the vehicle in another state. Massachusetts credits sales tax legally paid to another state, so the same dollars are not taxed twice. That summary is for a retail purchase from a dealer, and most states apply different rules to leases and private-party sales.
Massachusetts car sales tax quick facts
Last verified August 30, 2026| Sales tax rate on vehicles | 6.25%, no local add-ons[1] |
| Trade-in credit | Massachusetts taxes the price after the trade-in is deducted. The deduction applies to dealer sales made in the regular course of business; a casual private-party sale gets no trade-in reduction.[2] |
| Selling to an out-of-state buyer | Massachusetts collects its own sales tax at the point of sale even when the buyer will register the vehicle in another state.[2] |
| Credit for tax paid to another state | Massachusetts credits sales tax legally paid to another state, so the same dollars are not taxed twice. Credit applies only where the state of purchase has a reciprocal agreement with Massachusetts. The RMV reciprocity chart lists Mississippi, Oklahoma and West Virginia as non-reciprocal, along with the no-sales-tax states Montana, New Hampshire and Oregon. If the other state's rate was lower, Massachusetts collects the difference. Exception: no full credit for tax paid to Mississippi, Montana, New Hampshire, Oklahoma, Oregon, West Virginia.[2] |
| Dealer doc fee | No statutory cap[3] · taxable[1] |
| Temp tag for the drive home | Massachusetts dealers issue a Non-Resident Short-Term Registration (temporary plate) valid 15 days from the transaction date, $20, usable only to transport the vehicle back to the buyer's home state.[4] |
| Out-of-state buyer registration | A nonresident buying from a Massachusetts dealer registers at home, not here. For the drive home the dealer issues a Non-Resident Short-Term Registration ($20), and no Massachusetts motor vehicle excise is charged on it.[5] |
Massachusetts car sales tax calculator
Enter the sale price and any trade-in to estimate Massachusetts vehicle tax and the out-the-door total before title and registration. It applies the verified rate, trade-in rule and doc fee treatment from the quick facts above.
From the desk
Massachusetts runs a flat statewide rate collected through the RMV process, with clean trade-in treatment. The desk work is the out-of-state chain: New Hampshire's no-tax border pulls buyers both directions all day.
Selling to an out-of-state buyer in Massachusetts
Massachusetts collects its own sales tax at the point of sale even when the buyer will register the vehicle in another state.[2]
The tax answer is only half the job. The desk still has to move the title, issue the temp tag, and keep the deal from stalling while paperwork crosses state lines.
Buying in Massachusetts from out of state
If you live in another state and buy in Massachusetts, the deciding rule is where the vehicle gets registered: your home state's tax applies at registration, and what happens at the Massachusetts sale depends on the rule above. Massachusetts credits sales tax legally paid to another state, so the same dollars are not taxed twice. Credit applies only where the state of purchase has a reciprocal agreement with Massachusetts. The RMV reciprocity chart lists Mississippi, Oklahoma and West Virginia as non-reciprocal, along with the no-sales-tax states Montana, New Hampshire and Oregon. If the other state's rate was lower, Massachusetts collects the difference. Exception: no full credit for tax paid to Mississippi, Montana, New Hampshire, Oklahoma, Oregon, West Virginia.[2]
Registration and temp tags
Massachusetts dealers issue a Non-Resident Short-Term Registration (temporary plate) valid 15 days from the transaction date, $20, usable only to transport the vehicle back to the buyer's home state.[4] A nonresident buying from a Massachusetts dealer registers at home, not here. For the drive home the dealer issues a Non-Resident Short-Term Registration ($20), and no Massachusetts motor vehicle excise is charged on it.[5]
Bordering states
Cross-border deals from Massachusetts most often involve Connecticut, New Hampshire, New York, Rhode Island and Vermont. Treat each pairing as its own problem and put it through the out-of-state checker.
Vehicle-type exceptions
Off-road equipment such as crawler tractors, front end loaders and cranes is not a motor vehicle or trailer for this tax, and a trade-in reduction is never allowed on those sales.[6]
Sources
- www.mass.gov/…/directive-14-1-document-and-title-preparation-fees-charged-by-motor-vehicle-dealers · verified 2026-08-27
- www.mass.gov/guides/motor-vehicle-and-trailer-sales-and-use-tax · verified 2026-08-27
- www.mass.gov/doc/auto-advisory-0/download · verified 2026-08-27
- www.mass.gov/…/download · verified 2026-08-27
- www.mass.gov/…/apply-for-a-non-resident-short-term-registration · verified 2026-08-27
- www.mass.gov/regulations/830-CMR-64h251-motor-vehicles · verified 2026-08-27
“Massachusetts Car Sales Tax & Out-of-State Rules.” Voltra. Last verified August 30, 2026. https://voltra.ai/car-sales-tax/massachusetts/
More state-by-state guides: trade-in tax credit by state · recent rule changes · all states + the out-of-state checker