Connecticut vs Massachusetts
Connecticut and Massachusetts compare differently in the short vs long run: Connecticut costs $3,067 first year ($740 annual after), Massachusetts costs $3,080 first year ($555 annual after).
Cost comparison
| Connecticut | Massachusetts | Difference | |
|---|---|---|---|
| First-year total All-in cost to register a new $35,000 gas vehicle for the first time, including sales tax, title, and registration. | $3,067 | $3,080 | −$13 |
| Annual renewal (year 2+) Recurring annual cost after the first year — what you actually pay every year you own the car. | $740 | $555 | +$185 |
| Sales tax (one-time) Sales/use/excise tax owed at purchase on a $35,000 vehicle, using typical local rates. | $2,223 | $2,188 | +$35 |
| Combined sales tax rate State rate plus typical local rate (where applicable). | 6.35% | 6.25% | +0.10 pp |
| EV first-year total Same $35K scenario but as a battery electric vehicle, capturing EV-specific surcharges. | $3,067 | $3,080 | −$13 |
| EV annual renewal Recurring EV-ownership cost in year 2+. | $740 | $555 | +$185 |
| EV surcharge Annual EV-specific registration fee (zero in states without one). | None | None | matches |
How each state structures it
Connecticut
Connecticut's vehicle costs are dominated by the annual motor vehicle property tax — billed by your town (Connecticut has 169 towns, no counties). State law CAPS the motor vehicle mill rate at 32.46 mills (effective FY 2022-23+), giving a maximum effective rate of 2.27% on depreciated MSRP. Most CT towns are at or near this cap. Sales tax is 6.35% on vehicles under $50,000 and jumps to 7.75% on the FULL amount for vehicles $50,000+ (a "luxury tax" cliff that surprises buyers). Registration is triennial $40/year annualized plus various state surcharges (Clean Air, Greenhouse Gas, Parks Pass) totaling about $27/year. Notably, Connecticut has NO EV registration surcharge. A new $35,000 vehicle in a typical CT town runs about $3,000 in first-year costs, with annual renewals around $815 in year 1 dropping to roughly $300 by year 8 as depreciation reduces the assessed value.
Massachusetts
Massachusetts has a clean two-track structure: a flat $60 biennial registration fee paid to the RMV (equivalent to $30/year), and a separate annual Motor Vehicle Excise Tax of $25 per $1,000 (2.5%) of depreciated MSRP, billed by your city or town. The excise tax depreciation schedule is set in state law — 90% of MSRP in the year of manufacture, dropping to 60%, 40%, 25%, and finally 10% from year 5 onward — so the bill drops sharply in the vehicle's first few years. Beyond that, Massachusetts is simple: 6.25% statewide sales tax with no local additions, a $75 title fee, full trade-in credit on dealer sales, and crucially NO EV surcharge (plus up to $3,500 in EV rebates through MOR-EV). A new $35,000 vehicle runs about $3,055 in first-year costs (driven mostly by the $787 first-year excise tax), with annual costs dropping fast: $525 in year 2, $350 in year 3, and just $118 from year 5 onward.
What this means for you
- Buying a new car: Connecticut is roughly $13 cheaper than Massachusetts in the first year on a $35K vehicle, driven mostly by sales tax and one-time fees.
- Annual renewal: Massachusetts is cheaper to renew annually by about $185/year. Over a 5-year ownership period that's roughly $927 in renewal-fee savings alone.
- If you drive an EV: Neither state charges an EV-specific registration surcharge — both are friendly for EV ownership on the fee side.
- Structural differences: Both states levy an annual ad valorem tax on vehicles, so neither offers a long-term renewal advantage from this structure.
Frequently asked questions
Is it cheaper to register a car in Connecticut or Massachusetts?
It depends on the timeframe. Connecticut costs $3,067 first year and $740 annually after. Massachusetts costs $3,080 first year and $555 annually after. One state may be cheaper upfront and the other cheaper long-term.
What is the sales tax difference between Connecticut and Massachusetts?
Connecticut charges 6.35% combined sales tax on vehicles; Massachusetts charges 6.25%. On a $35,000 purchase that's $2,223 in Connecticut vs $2,188 in Massachusetts.
Do Connecticut and Massachusetts both charge EV registration fees?
Connecticut: no EV surcharge. Massachusetts: no EV surcharge. EV fees are added on top of standard registration costs.
Official sources: Connecticut DMV • MA RMV
Data last updated: 2026-05-23