Connecticut Vehicle Registration Fee Calculator / Estimator 2026
Estimate your true ongoing vehicle costs with our Connecticut vehicle registration fees calculator. Calculate your exact municipal motor vehicle property tax based on your town's mill rate and the state's MSRP depreciation schedule.
Vehicle details
CT Property Tax Breakdown
| Line Item | Amount |
|---|---|
| Original MSRP | $0 |
| Depreciated MSRP Value (85%) | $0 |
| Statewide Assessment Ratio | 70% |
| Taxable Assessed Value | $0 |
5-Year Tax Depreciation Projection
Connecticut lowers your vehicle's assessed value as it ages. Here is what you can expect to pay over the next 5 years.
* Methodology (Public Act 22-118): CT assesses vehicles at 70% of their depreciated MSRP value. The standard depreciation schedule starts at 85% for Year 1 and drops 5% annually down to a 15% floor. The assessed value is multiplied by the mill rate and divided by 1,000. Minimum assessed value for vehicles 20+ years old is $500.
How much will my tag and registration cost in Connecticut?
In Connecticut, your ongoing vehicle costs are split into two distinct parts. First, there is a flat DMV tag fee of $120 every three years for standard passenger vehicles (which breaks down to just $40 per year). However, the most significant cost is the annual municipal motor vehicle property tax. Depending on your town's mill rate and your car's original MSRP, this property tax can cost anywhere from $150 to over $1,000 every single year. Because the property tax is assessed locally, your neighbor in the next town over could drive the exact same car and pay hundreds of dollars less.
How fees are calculated in Connecticut
Under Public Act 22-118, Connecticut standardized how local towns calculate motor vehicle property taxes across the state. The calculation follows a strict formula:
- Depreciated MSRP: The state starts with the vehicle's original base MSRP. A brand-new car (Age 1) is valued at 85% of its MSRP. The value drops by 5% every year until it hits a 15% floor.
- 70% Assessment Ratio: Connecticut universally assesses motor vehicles at 70% of their current depreciated value.
- The Mill Rate: The assessed value is divided by 1,000 and multiplied by your town's specific mill rate. The state has capped the motor vehicle mill rate at 32.46, though some towns have lower rates.
On top of this annual tax, the DMV collects a triennial (every three years) flat registration fee of $120, plus a $15 Clean Air Act fee and a $24 Passport to the Parks fee.
What affects your registration in Connecticut?
- Town Mill Rate: The single biggest variable. Cities like Hartford cap out at 32.46, while Greenwich might be as low as 12.
- Original MSRP: Your property tax is tied directly to the original sticker price of the vehicle, regardless of what you actually paid for it.
- Vehicle Age: Because the assessed value drops 5% annually, older vehicles are significantly cheaper to keep on the road.
- Vehicle Class: Commercial vehicles, heavy trucks, and campers have different DMV base fee structures, mostly determined by gross weight.
Estimated examples
| Scenario | VLT Property Tax Formula | Approx. Property Tax |
|---|---|---|
| New SUV ($45,000 MSRP) in Hartford | (45k × 85% × 70%) × (32.46 / 1000) | ≈ $869 / yr |
| 5-Year-Old Sedan ($25,000 MSRP) in Greenwich | (25k × 65% × 70%) × (12.04 / 1000) | ≈ $137 / yr |
| 12-Year-Old Truck ($38,000 MSRP) in Stamford | (38k × 30% × 70%) × (25.00 / 1000) | ≈ $199 / yr |
*Note: You must also account for the separate $120 / 3-year DMV tag fee.
What this calculator may not include
- The flat state-level DMV registration fee ($120 every 3 years).
- The one-time state sales tax (6.35% for vehicles under $50k, 7.75% for vehicles over $50k).
- One-time title and lien fees ($25).
- The Passport to the Parks ($24) and Clean Air Act ($15) fees assessed during DMV renewals.
- Late penalties or emissions test fees.
Frequently asked questions
How much is the average car registration in Connecticut?
The DMV fee itself averages out to roughly $50 a year (paid as ~$150 every three years with park/air fees included). However, the average driver pays an additional $300 to $600 annually in municipal motor vehicle property taxes, making the total effective cost much higher.
Is this calculator accurate for all vehicles in Connecticut?
This calculator is highly accurate for standard passenger vehicles following the new Public Act 22-118 depreciation schedules. Heavy commercial vehicles, farm equipment, and classic cars (which often have a capped assessment value of $500) follow different rules.
Can registration fees in Connecticut change every year?
While the DMV flat fee is locked in for a 3-year term, your town property tax bill will change every year. It typically decreases annually as your vehicle's depreciation factor drops by 5% each year.
Can I use this calculator for a new car and a used car in Connecticut?
Yes. Connecticut calculates the property tax based on the vehicle's original MSRP and its current age from the model year. Enter the original MSRP and adjust the "Vehicle Age" to reflect how old the used car is.