DMVCosts

Connecticut Tax, Title & Registration Calculator

Buy a car in Connecticut and the DMV window charges you three things: sales tax at 6.35%, a $25 title fee, and a registration that - unlike most states - covers three years at once, not one. But the DMV total is only half of what owning that car actually costs here. Every October 1st, your town assesses the vehicle again and mails you a separate property tax bill the following summer, with no relation to anything the DMV collected.

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  • No signup
  • Verified June 2026
Sales tax
6.35% (7.75% over $50k)
Title fee
$25
Registration
$120 / 3 years
Paid at
DMV, then town tax office
Ongoing cost
Annual town property tax

Your numbers

$
$

Every CT town sets its own motor vehicle mill rate, but state law caps it at 32.46 mills - most cities' real-estate rate is much higher, so cars there are billed at the capped rate instead.

DMV total + estimated first-year town tax

$2,848.66

  • Sales tax (6.35%)$1,905.00
  • Title fee$25.00
  • Base registration (passenger vehicle, 3-year term)$120.00
  • Plate fee$5.00
  • Administrative fee$10.00
  • Federal Clean Air Act feewaived for EVs$15.00
  • Greenhouse Gas Reduction fee (new vehicle)new vehicles with a manufacturer's certificate of origin only$15.00
  • Passport to the Parks fee (3 yrs @ $24/yr)$72.00
  • Est. first-year town property tax (Hartford (32.46-mill cap))billed by the town next July, not the DMV$681.66

The property tax line is an estimate at 70% assessment × your town's mill rate - actual town valuations now follow a depreciated-MSRP schedule that may differ from your purchase price.

Overview

There's also a cliff hiding in the sales tax: cross $50,000 in taxable price (after any trade-in) and the rate doesn't step up gradually - the whole amount jumps to 7.75%. A $49,999 purchase owes $3,175; a $50,001 purchase owes $3,875, a $700 swing from two extra dollars of price. Enter your numbers below for the DMV total, plus an estimate of what your town will bill you in year one.

01 - Official fees

Connecticut tax, title & license fees at a glance

FeeAmount
Motor vehicle sales tax6.35%
Luxury rate (taxable amount over $50,000)7.75%
Title fee$25
Lien recording fee$10
Base registration$120
Plate + admin fees$15
Clean Air Act + Greenhouse Gas fees$15–$30
Passport to the Parks fee$72
Municipal property tax70% of value × town mill rate

Figures verified June 2026 against official sources (listed below). Always confirm the final amount with the Connecticut DMV (plus your town tax collector for the annual property tax) - counties can add small local fees.

02 - Step by step

How to pay tax, title and registration in Connecticut

  1. 1

    Get the signed-over title from the seller (or let the dealer handle the paperwork electronically).

  2. 2

    Complete Form H-13B (Application for Registration and Title) with the purchase price.

  3. 3

    Bring the title, H-13B, proof of CT insurance, and ID to a DMV office or use an eligible online/dealer path.

  4. 4

    Pay the 6.35%/7.75% sales tax, $25 title fee, and the 3-year registration stack in one transaction.

  5. 5

    Watch for your town's supplemental motor vehicle tax bill the following January - it's separate from anything DMV collected.

03 - Same state, other costs

More Connecticut vehicle costs

04 - Common questions

Connecticut tax, title & license FAQ

How much is tax, title and registration on a $30,000 car in Connecticut?

About $2,120 at the DMV window: $1,905 in sales tax (6.35%), a $25 title fee, and roughly $190 for the first 3-year registration cycle (base fee, plate, admin, and Passport to the Parks). That figure doesn't include the town property tax bill that arrives separately.

Why would a $50,001 car cost so much more in tax than a $49,999 one?

Connecticut's luxury rate isn't marginal - once your taxable amount (price minus trade-in) passes $50,000, the ENTIRE amount is taxed at 7.75% instead of 6.35%. A $50,001 purchase owes $3,875.08 versus $3,174.94 at $49,999 - a roughly $700 jump from two dollars of price.

Does Connecticut give a trade-in tax credit?

Yes, at a dealership - the 6.35%/7.75% tax applies to price minus trade-in allowance. Private-party sales don't have a trade-in mechanism since there's no dealer transaction; DRS instead compares your price to the vehicle's NADA average trade-in value.

Why is my registration a 3-year fee instead of annual?

Connecticut moved passenger vehicles to triennial (3-year) registration. The $120 base fee, Clean Air Act fee, and Passport to the Parks charge are all collected once, up front, covering the full 3 years - drivers 65+ can opt for a prorated 1-year renewal instead.

I already paid TTL - why did my town send me a tax bill?

Connecticut is one of the few states that taxes vehicles as personal property every year, separate from the DMV entirely. Your town assesses the car at 70% of its value each October 1st and mails a bill the following July (with a prorated supplemental bill in January for cars bought mid-year). It's paid to the town tax collector, not the DMV.

Is there a limit on how high my town's car tax can go?

Yes - while a town's real-estate mill rate can run well past 60 mills in cities like Hartford or Waterbury, state law caps the motor vehicle mill rate at 32.46. So even in the highest-taxed cities, your car is billed at 32.46 mills times 70% of its value, not the full local rate.

What if I bought the car from a private seller for less than it's worth?

Connecticut compares your bill-of-sale price to the vehicle's NADA average trade-in value and taxes whichever is higher - so a suspiciously low private-sale price doesn't lower your tax bill the way it might elsewhere.

05 - Receipts

Official sources

Every number on this page comes from these documents - check them yourself.

Disclaimer

DMVCosts provides fee estimates for general informational purposes only - it is not legal, tax, or financial advice, and no calculator can account for every county surcharge, exemption, or mid-year rate change. Figures are verified against official sources on the date shown, but fees change over time.

The final, binding amount is always the one quoted by the Connecticut DMV (plus your town tax collector for the annual property tax). Confirm with them before making payment decisions. To the fullest extent permitted by law, DMVCosts disclaims all liability for decisions made based on these estimates.