Connecticut State Department of Revenue Services

Filing and Paying Connecticut Taxes Electronically

The Connecticut Department of Revenue Services (DRS) requires most taxpayers to file returns and make payments electronically. The primary system for managing tax accounts is myconneCT, DRS’s secure online portal.

Who Must File and Pay Electronically

Generally, if you are required to file a tax return electronically, you must also pay the associated tax by Electronic Funds Transfer (EFT). DRS will notify you if you are subject to this requirement.

All taxpayers registered for the following tax types must file returns electronically and pay associated taxes by EFT:

  • Alcoholic Beverages Tax
  • Attorney Occupational Tax
  • Aviation Fuel Tax
  • Bottle Deposit Tax
  • Cable, Satellite, and Video Gross Earnings Tax
  • Cannabis Tax
  • Certified Competitive Video Service Companies Gross Earnings Tax
  • Cigarette Licenses/Tax
  • Community Antenna Television System Companies Gross Earnings Tax
  • Composite/Pass-Through Entity Tax (PET Optional Return)
  • Corporation Business Tax
  • Dry Cleaning Establishment Surcharge
  • Dues Tax
  • Electric Distribution Companies Gross Earnings Tax
  • Electronic Cigarette Products Tax
  • Gross Earnings Tax on Railroad Companies
  • Health Care Center Tax
  • Heating Fuels Distributor
  • Highway Use Fee
  • Hospital Provider User Fee
  • Income Tax Trust and Estate
  • Insurance Premiums Tax, Captive Insurance Companies
  • Insurance Premiums Tax, Domestic Companies
  • Insurance Premiums Tax, Nonresident and Foreign Companies
  • Insurance Premiums Tax, Risk Retention Groups
  • Intermediate Care Facility Provider User Fee
  • International Fuel Tax Agreement Account
  • International Fuel Tax Agreement License Account
  • Monthly Tax Stamp and Cigarette Report Resident Distributor
  • Monthly Tax Stamp and Cigarette Report Nonresident Distributor
  • Motor Vehicle Fuels Distributor Tax
  • Municipal Gas Utilities, Gas Suppliers and Local Gas Distribution Companies Gross Earnings Tax
  • Non-admitted Insurance Premium Tax
  • Nursing Home Provider User Fee
  • Petroleum Products Gross Earnings Tax
  • Prepaid Wireless E 9-1-1 Fee
  • Railroad Company
  • Rental Surcharge
  • Room Occupancy Tax
  • Sales and Use Taxes / Business Use Tax
  • Satellite Companies Gross Earnings Tax
  • Second Hospital User Fee
  • Solid Waste Assessment
  • Special Fuels Distributor Tax
  • Tobacco Products Tax
  • Tourism Surcharge
  • Transportation Network Company Fee
  • Unrelated Business Income Tax
  • Withholding Tax

Electronic Filing and Payment Options

All tax types listed above can be filed, paid, and amended electronically using myconneCT, unless otherwise noted.

In addition:

  • Individual Income Tax may be filed using myconneCT or through approved commercial tax preparation software (Modernized e-File (MeF).
  • Business taxes may also be supported by third-party software, depending on the provider.

Beginning July 2026, most tax types will be required to be filed electronically. Individual Income Tax is the primary exception.

Using myconneCT

myconneCT is DRS’s secure online portal that allows taxpayers to manage their accounts.

Using myconneCT, you can:

  • File original returns
  • Make payments
  • Amend previously filed returns
  • View account history and correspondence

Unless otherwise specified, all applicable tax types support electronic filing, payment, and amendment through myconneCT.

Payment Methods

DRS offers several electronic payment options:

ACH Debit (Recommended)

Authorize DRS to withdraw funds from your bank account by entering your banking information and selecting a payment date in myconneCT.

ACH Credit

Initiate a payment through your financial institution using the required ACH CCD+TXP format. Contact your bank for assistance.

To receive detailed instructions for making ACH credit payments, complete and submit Form EFT-1, Authorization Agreement for Electronic Funds Transfer. A copy of Form EFT-1 can be downloaded from the DRS website at http://ct.gov/drs or accessed by selecting the link provided here.

Credit or Debit Card

Pay through myconneCT using a credit or debit card. A convenience fee is charged by the payment processor.

*** All tax types can be paid by Credit or With Debit card with the exception of Cannabis tax.

Federal/State Employment Taxes Program (FSET)

DRS participates in the FSET program, which allows employers and payroll providers to file federal and state employment taxes and make payments through a single system.

This option is primarily used by:

  • Payroll service providers
  • Software developers
  • Large employers

Special Filing Options

Individual Income Tax

Individual Income Tax returns may be filed through:

  • myconneCT
  • Commercial tax preparation software

Real Estate Conveyance Tax

Real Estate Conveyance Tax returns must be filed using myCTREC, the dedicated online system for this tax type.

Additional Information

Timely Filing and Payments

  • Payments must be initiated on or before the due date.
  • If the due date falls on a weekend or holiday, the next business day applies.
  • Penalties and Interest
  • Late payment penalties generally apply (10% or 15% depending on tax type).
  • Interest accrues at 1% per month or fraction of a month.

Penalty for Failure to Pay Electronically

The following graduated penalty amounts will apply if you fail to remit payments electronically:

  • First offense – 10% penalty on the amount of the required tax payment, but not more than $2,500;
  • Second offense – 10% penalty, but not more than $10,000; and
  • Third and subsequent offenses – 10% penalty.

Waivers

Taxpayers may request a waiver from electronic filing or payment requirements if they can demonstrate undue hardship.

Other Electronic Filing Information

  • You must file a return even if no tax is due.
  • You can make payments without logging in for certain Individual Income Tax transactions.

For more information, visit the DRS website or access your account through myconneCT.

Page Last Reviewed or Updated 6-July-2026