Connecticut IFTA Fuel Tax

IFTA Reporting and Filing Requirements in Connecticut

Who Needs IFTA Registration in Connecticut?

You must register for the International Fuel Tax Agreement (IFTA) if Connecticut is your base jurisdiction and you operate a qualified motor vehicle in two or more IFTA member jurisdictions. Registering for Connecticut IFTA allows you to file one quarterly fuel tax return through Connecticut to report fuel use in all IFTA member jurisdictions where you operate.

In Connecticut, a qualified motor vehicle is one that is used, designed, or maintained to transport people or property and meets any of the following criteria:

• Has two axles and a gross vehicle weight or registered weight exceeding 26,000 pounds
• Has three or more axles, regardless of weight
• Is used in combination when the combination weight exceeds 26,000 pounds

Recreational vehicles used exclusively for personal pleasure are exempt from IFTA fuel tax reporting.

To qualify for Connecticut IFTA registration, Connecticut must be your base jurisdiction. Generally, this means your qualified motor vehicles are based in Connecticut for registration purposes, operational control and records are maintained or can be made available in Connecticut, and the fleet accrues some mileage in Connecticut.

If your qualified motor vehicles operate only within Connecticut, you do not need an IFTA license. If you are not an IFTA licensee, you may instead satisfy fuel-use tax requirements on a trip-by-trip basis by obtaining the required trip permit from each jurisdiction where you operate.

For eligibility requirements, licensing information, and program guidance, refer to the Connecticut Department of Revenue Services (DRS) – IFTA page and the Connecticut IFTA Application Instructions.

What Are The IFTA Reporting Requirements In Connecticut?

If Connecticut is your base jurisdiction for the International Fuel Tax Agreement (IFTA), you must file an IFTA quarterly tax return with the Connecticut Department of Revenue Services (DRS) every calendar quarter. Connecticut requires IFTA returns and payments to be submitted electronically through myconneCT.

You must file a return even if you had no operations or used no taxable fuel during the reporting period. In these cases, you must still submit the required quarterly return reporting zero activity as applicable.

Each Connecticut IFTA quarterly return must include information such as:

• Total miles traveled by qualified motor vehicles in all jurisdictions
• Total and taxable miles traveled in each IFTA member jurisdiction
• Fuel purchased and used, reported by fuel type
• Tax-paid fuel purchases by jurisdiction
• Fuel tax due or credits based on the applicable IFTA tax rates

Connecticut requires fuel and distance to be reported using U.S. measurements, with totals rounded to the nearest whole gallon and mile.

To support your quarterly filings, maintain complete records of your distance traveled and fuel purchases, including trip records, fuel receipts, monthly fleet summaries, and bulk fuel records when applicable. Connecticut requires IFTA licensees to retain these records for four years from the date the return is filed.

For detailed reporting requirements, recordkeeping standards, and audit guidance, refer to the Connecticut IFTA Manual and the Connecticut Department of Revenue Services IFTA page.

How Do You File An IFTA Report In Connecticut?

Connecticut IFTA license holders must file their quarterly IFTA tax returns electronically through myconneCT, the Connecticut Department of Revenue Services (DRS) online tax portal.

1. Gather Your Records

   Before filing your Connecticut IFTA quarterly tax return, collect the information needed to accurately report your fuel use and mileage, including:

   • Total miles traveled in each IFTA member jurisdiction
   • Total taxable and non-taxable miles traveled, where applicable
   • Total gallons of fuel purchased, reported by fuel type
   • Tax-paid fuel purchases by jurisdiction
   • Fuel receipts, trip records, and distance records for each qualified motor vehicle

   Maintaining complete and accurate records helps ensure your return is filed correctly and supports your reported information during an IFTA audit.

2. Log In To myconneCT

   Sign in to your myconneCT account and access your IFTA account.

   From your account dashboard:

   • Select your IFTA account.
   • Choose the applicable reporting year and quarter.
   • Enter your mileage and fuel purchase information for each IFTA member jurisdiction.
   • Review the calculated tax, interest, penalties, and any balance due or credit.
   • Submit your return and pay any tax due electronically.

3. Submit A Return Every Quarter

   Connecticut requires all IFTA license holders to file a quarterly return, even if no qualified motor vehicles operated during the reporting period. If you had no miles traveled, no fuel purchases, or no tax due, you must still file a zero return to keep your IFTA account in good standing.

What Are The IFTA License Costs And Fees In Connecticut?

Connecticut does not charge a separate fee for the IFTA fleet license itself. However, Connecticut law requires an annual $10 registration fee for each qualified motor vehicle operating under a Connecticut IFTA license. That fee includes the IFTA decal set issued for the vehicle

The current Connecticut IFTA fees are:

Each qualified motor vehicle receives two IFTA decals, with one decal displayed on the lower rear exterior portion of each side of the vehicle’s cab.

If additional or replacement decals are needed during the license year, you may request them from the Connecticut Department of Revenue Services. Replacement decal sets are subject to the same fee as original decal sets.

What Are The IFTA Penalties And Interest In Connecticut?

Connecticut requires IFTA license holders to file quarterly IFTA tax returns and pay any fuel tax due by the applicable filing deadline. An incomplete or late return may result in penalties and interest.

The penalty is the greater of:

• $50, or
• 10% of the tax due and unpaid

Connecticut DRS applies this penalty to an incomplete return or late filing.

Interest also accrues on unpaid fuel tax owed to each jurisdiction from the original due date until the balance is paid. Connecticut applies the IFTA Annual Interest Rate, which is adjusted annually under the International Fuel Tax Agreement.

Failure to file required returns or pay outstanding IFTA liabilities may result in suspension or revocation of your Connecticut IFTA license. While your license is suspended or revoked, you cannot legally operate under those IFTA credentials.

To reinstate a Connecticut IFTA license, you must:

• Pay all taxes due
• File all outstanding reports and returns
• Provide any requested records
• Submit a new IFTA application through myconneCT

If your IFTA account was previously revoked in Connecticut or another jurisdiction, DRS may also require a bond and proof that outstanding liabilities in other jurisdictions have been satisfied.

To avoid penalties and interest, file your Connecticut IFTA return and pay any balance due by the quarterly deadline, even when you had no operations during the reporting period.

How Do You Renew An IFTA License In Connecticut?

Connecticut IFTA licenses must be renewed annually through the Connecticut Department of Revenue Services (DRS). IFTA licenses are valid from January 1 through December 31 each year.

You can renew your Connecticut IFTA license electronically through myconneCT.

1. Log In To Your myconneCT Account Sign in to myconneCT and locate your International Fuel Tax Agreement License account.
   
   Select Order IFTA Decals to begin the renewal process.
2. Complete Your Renewal Select the applicable license period, choose the Renewal decal type, and enter the number of decal sets needed for your qualified motor vehicles.
   
   Before renewing, make sure:
   
   
   • All required IFTA returns have been filed.
   • Outstanding IFTA liabilities have been resolved.
   • Your account information is current.
   Connecticut will not allow you to renew if outstanding liabilities remain. A renewal may also be denied if you have not reported miles traveled outside Connecticut during the previous three quarters.
3. Submit Your Renewal And Pay For Decals Submit payment for the required decal sets and complete the renewal request through myconneCT.
   
   Once the renewal is processed, Connecticut will issue:
   
   
   • A renewed IFTA license.
   • Two IFTA decals for each qualified motor vehicle.
   DRS generally begins mailing renewal decal orders in late November.
   
   Carry a paper or electronic copy of the renewed IFTA license in each qualified motor vehicle and display one current decal on each side of the cab. Connecticut permits electronic IFTA credentials, and all U.S. states and Canadian provinces must accept electronic images of IFTA licenses.
   
   For additional renewal guidance, visit the Connecticut Department of Revenue Services IFTA page or access your IFTA account through myconneCT.

Simplify Connecticut IFTA Reporting with eIFTA by Truckopedia

Preparing quarterly Connecticut IFTA returns does not have to be complicated. eIFTA by Truckopedia helps owner-operators and fleet managers turn mileage and fuel purchase data into accurate, file-ready IFTA reports.

With eIFTA, you can:

• Generate accurate Connecticut IFTA reports in minutes
• Calculate fuel taxes using current IFTA tax rates
• Track mileage and fuel purchases across IFTA member jurisdictions
• Reduce manual calculations and reporting errors
• Keep your records organized for quarterly filing and IFTA audits

Whether you operate one truck or manage a fleet across multiple IFTA member jurisdictions, eIFTA helps simplify quarterly fuel tax reporting so you can spend less time on paperwork and more time on the road.