CTConnecticut trucking compliance

Connecticut (CT) Trucking Compliance: Filings, Registrations & Permits

✦ The quick answer

Connecticut-based and out-of-state carriers running heavy trucks in Connecticut must keep the core federal filings current (USDOT/MCS-150, UCR, IFTA, IRP, and Form 2290 HVUT) AND register for Connecticut's own Highway Use Fee (HUF), a per-mile tax on heavy commercial trucks that took effect January 1, 2023. The Highway Use Fee is the single biggest thing that sets Connecticut apart from neighboring no-mileage-tax states.

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What Connecticut requires

UCR

The Unified Carrier Registration (UCR) is an annual federal program administered by the states, and Connecticut participates. If you operate commercial motor vehicles in interstate commerce, you must register and pay the UCR fee every year. Your fee bracket is based on the total number of power units (trucks/tractors) in your fleet, not a flat per-truck rate. UCR registration typically opens in the fall for the following calendar year, and enforcement generally begins January 1. Brokers, freight forwarders, and leasing companies without trucks pay the smallest bracket. We help you confirm your correct fleet-size bracket, prepare an accurate registration, and validate the details before you submit through the official UCR system. Always verify the current-year fee amounts on the official UCR site, since brackets are set annually.

Form 2290 (HVUT)

Form 2290 and the Heavy Vehicle Use Tax (HVUT) are federal, filed with the IRS, but they matter in Connecticut because the CT DMV will not register or renew a qualifying heavy vehicle without proof of payment (a stamped Schedule 1). HVUT applies to vehicles with a taxable gross weight of 55,000 lbs or more. The tax for a vehicle at 55,000 lbs is $100, plus $22 for each additional 1,000 lbs over 55,000, up to a maximum of $550 for vehicles at 75,000 lbs and above. The HVUT period runs July 1 through June 30. For vehicles in use at the start of the period in July, the deadline to file is August 31. For a newly acquired or first-used vehicle, the deadline is the last day of the month after the month you first put it on the road. Note that the federal HVUT is separate from Connecticut's Highway Use Fee discussed below: they are two different taxes with two different agencies (IRS vs. the CT Department of Revenue Services). We help you calculate the correct taxable gross weight, prepare Form 2290, and validate your entries so your Schedule 1 comes back clean for your Connecticut registration.

MCS-150

Your USDOT number and the MCS-150 form are how FMCSA tracks your carrier identity, fleet size, mileage, and operation type. Every interstate carrier and many intrastate Connecticut carriers need a USDOT number, and the MCS-150 must be updated at least every two years (the biennial update) on a schedule tied to your USDOT number. Missing the biennial update can deactivate your USDOT number and put your operating authority at risk. Connecticut also pulls many intrastate carriers into the USDOT system, so even purely in-state operators may need a USDOT number. We help you keep your MCS-150 accurate (mileage, power-unit count, contact details), guide you through the biennial update timing based on your USDOT number, and validate the data before you file it with FMCSA.

IFTA

Connecticut is a member of the International Fuel Tax Agreement (IFTA). If you operate qualified motor vehicles across state lines, you base your IFTA license in Connecticut (your base jurisdiction) and file a single quarterly fuel tax return covering all member states and provinces. A qualified vehicle generally has two axles and a gross weight over 26,000 lbs, three or more axles regardless of weight, or is used in combination over 26,000 lbs. You get Connecticut IFTA decals and a license, then report total miles and fuel purchased per jurisdiction each quarter so taxes net out correctly. Quarterly returns are due the last day of the month following each quarter: April 30, July 31, October 31, and January 31. Important: IFTA covers fuel tax only. Connecticut's Highway Use Fee (HUF) is a separate mileage-based tax that you must file on top of IFTA. We help you organize trip and fuel data, calculate your quarterly figures, and validate the IFTA return before you file it with the CT Department of Revenue Services.

IRP

The International Registration Plan (IRP) lets you register your trucks once in Connecticut and get apportioned plates valid in all member jurisdictions, with registration fees split based on the miles you run in each state or province. Connecticut IRP is handled by the CT DMV. You'll report your fleet's distance by jurisdiction (actual miles for renewals, or estimated miles for a brand-new operation), and your Connecticut apportioned credentials and cab card list every jurisdiction you're authorized to run in. IRP, IFTA, and the CT Highway Use Fee all rely on accurate mileage records, so good recordkeeping serves all three programs at once. We help you assemble your jurisdiction mileage, prepare your IRP application or renewal, and validate it before you submit to the CT DMV.

Permits

Beyond the core federal programs, Connecticut carriers face several state-specific credentials. The big one is the Connecticut Highway Use Fee (HUF): carriers operating eligible heavy motor vehicles (generally those with a gross weight of 26,000 lbs or more) must register for a HUF permit with the CT Department of Revenue Services and file a monthly per-mile return for miles driven on Connecticut roads. Oversize or overweight loads require special hauling permits from the CT DOT (and from local authorities on some routes). Intrastate for-hire carriers may have additional CT DMV/DOT registration and insurance obligations. Connecticut does not operate fixed agricultural-style ports of entry like some western states, but commercial vehicles are subject to roadside enforcement and weigh-station checks. We help you identify which Connecticut permits, certificates, and authority types apply to your operation, prepare the paperwork, and validate it. Always confirm current requirements and fees directly with the CT DMV, CT DOT, and CT Department of Revenue Services before you rely on them.

Connecticut-specific requirements

What truly sets Connecticut apart is the Connecticut Highway Use Fee (HUF), a per-mile tax on heavy commercial trucks that took effect January 1, 2023. Any carrier operating an eligible motor vehicle (generally Class 8 and other heavy trucks with a gross weight of 26,000 lbs or more, carrying or designed to carry property) must register for a HUF permit with the CT Department of Revenue Services and file a monthly return reporting the miles driven on Connecticut public roads. The per-mile rate is tiered by the vehicle's gross weight and increases for the heaviest classes, so heavier trucks pay a higher rate per mile. This is a weight-distance / mileage tax that is separate from and on top of IFTA fuel tax, much like New York's HUT, Kentucky's KYU, New Mexico's, and Oregon's weight-distance taxes. Out-of-state carriers still owe the Connecticut HUF for the miles they run in Connecticut, just as a Connecticut carrier owes those other states for miles run there. Connecticut does not run fixed western-style ports of entry, but it does enforce compliance at weigh stations and through roadside inspections. Note that the HUF is administered by the CT Department of Revenue Services, while registrations and apportioned plates run through the CT DMV, so the Connecticut compliance stack involves more than one state agency.

Connecticut compliance calendar

JanuaryUCR enforcement begins for the new year; Q4 IFTA fuel tax return due January 31; monthly CT Highway Use Fee return due for the prior month.

AprilQ1 IFTA fuel tax return due April 30; monthly CT Highway Use Fee return due for the prior month.

JulyNew federal HVUT period begins July 1; Q2 IFTA fuel tax return due July 31; monthly CT Highway Use Fee return due for the prior month.

AugustForm 2290 HVUT deadline (August 31) for vehicles in use during July.

OctoberQ3 IFTA fuel tax return due October 31; UCR registration typically opens for the next year; monthly CT Highway Use Fee return due for the prior month.

Monthly / OngoingCT Highway Use Fee return is filed monthly with the CT DRS; MCS-150 biennial update due on the schedule tied to your USDOT number; IRP/IFTA renewals on your assigned cycle.

Frequently asked questions

What is the Connecticut Highway Use Fee (HUF) and do I have to pay it?+

The CT Highway Use Fee is a per-mile tax that took effect January 1, 2023 on heavy commercial trucks (generally those with a gross weight of 26,000 lbs or more) operating on Connecticut roads. If your truck qualifies, you must register for a HUF permit with the CT Department of Revenue Services and file a monthly return reporting your Connecticut miles, paying a per-mile rate that increases with the vehicle's weight. It applies to both Connecticut-based and out-of-state carriers for the miles they run in Connecticut. Verify the current weight thresholds and rates with the CT DRS.

How is the CT Highway Use Fee different from IFTA and from Form 2290 HVUT?+

They are three separate things. IFTA is a quarterly fuel tax that nets out fuel taxes across states. Form 2290 HVUT is an annual federal tax paid to the IRS based on a vehicle's gross weight. The CT Highway Use Fee is a Connecticut state mileage (weight-distance) tax based on how many miles you drive on Connecticut roads, filed monthly with the CT Department of Revenue Services. You can owe all three at once, and we help you keep each one straight and prepared correctly.

How much is the Form 2290 Heavy Vehicle Use Tax?+

For a vehicle with a taxable gross weight of 55,000 lbs, the HVUT is $100. Add $22 for each additional 1,000 lbs over 55,000, up to a maximum of $550 for vehicles at 75,000 lbs or more. The tax period runs July 1 to June 30, and the filing deadline for vehicles used in July is August 31. Connecticut needs your stamped Schedule 1 to register the vehicle.

Do out-of-state trucks have to pay the Connecticut Highway Use Fee?+

Yes. The Highway Use Fee applies based on miles driven on Connecticut roads, not on where the carrier is based. If a qualifying heavy truck runs in Connecticut, the carrier generally must hold a HUF permit and report and pay for those Connecticut miles, even if it is headquartered in another state. Always confirm the current weight thresholds and registration rules with the CT Department of Revenue Services.

When are my Connecticut IFTA returns due?+

IFTA fuel tax returns are due quarterly: April 30, July 31, October 31, and January 31 for the preceding quarter. You file one return with Connecticut covering all member jurisdictions. Keep detailed mileage and fuel-purchase records, because that data drives both your IFTA return and your separate monthly CT Highway Use Fee return.

Is QuickTruckTax a filing service that submits my forms?+

No. QuickTruckTax helps you understand, prepare, and validate your filings, but it does not submit forms to the IRS, FMCSA, or any Connecticut state agency on your behalf. We guide you so your paperwork is accurate and complete, and you file it through the official channels. This is general guidance, not legal or tax advice; always confirm with the relevant agency.

How this works: QuickTruckTax helps you understand, prepare, and validate your filing. We are not a filing service and never submit forms on your behalf — you always do the final review and submission. Figures here are estimates for guidance only and are not legal or tax advice. Confirm current rules, fees, and deadlines with the IRS, FMCSA, or your state agency.