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2021 Connecticut Income Tax Filing Season: FAQ
Posted: January 26, 2021
Last Update: May 11, 2021

Select a topic:

2021 Connecticut Filing Extension
IRS/Federal Legislation
DRS Taxpayer Service Center
General Information

2021 Connecticut Filing Extension

Has DRS extended the filing and payment deadlines for Connecticut individual income tax returns? (added 3/21/2021)
Yes. On March 18th, 2021, DRS announced that the due date for 2020 individual income tax returns and payments was extended to May 17th, for the following forms only:

- CT-1040;
- CT-1040NR/PY; and
- CT-1040EXT.

Has DRS extended the filing and payment deadlines for individual income tax estimated payments? (added 3/21/2021)

Has DRS extended the filing and payment deadlines for Form CT-1041 and Form CT-1041 estimated payments? (added 3/21/2021)

Can I request an extension of time to file my 2020 Connecticut individual income tax return beyond May 17th? (added 3/21/2021)
Yes. Individual taxpayers who need additional time to file beyond the May 17th deadline can request an extension until October 15th, 2021, by filing Form CT-1040EXT through the DRS online Taxpayer Service Center (click on TSC-INDIVIDUAL LOGIN button, then ‘File An Extension’ in blue box). Taxpayers requesting additional time to file should estimate their tax liability and pay any taxes owed by the May 17th deadline to avoid additional interest and penalties.

If I have already filed my 2020 Connecticut income tax return and need to make a revision, how can I do so? (added 3/23/2021)
To amend a previously-filed 2020 Connecticut individual income tax return, visit the DRS online Taxpayer Service Center (scroll to TSC-Individual Login button) to File Form CT-1040X, Amended Connecticut Income Tax Return for Individuals. Your original 2020 Connecticut return must have been received and processed by DRS to utilize this option.

Form CT-1040X can also be printed, completed, and mailed to DRS, if necessary, but please allow for additional processing time.

IRS/Federal Legislation

When will the Internal Revenue Service (IRS) begin accepting federal income tax returns?
The IRS announced it will open their federal tax filing season on Friday, February 12th, 2021.

Has DRS issued guidance on federal CARES Act impact on Connecticut taxes? (added 2/16/2021)
Yes. Please see:

Office of the Commissioner Guidance - OCG-10, Regarding the Connecticut Tax Implications of the CARES Act

Office of the Commissioner Guidance - OCG-11, Regarding Depreciation of Qualified Improvement Property for Connecticut Tax Purposes

Is Connecticut income tax liability impacted by the exemption from income of the first $10,200 of unemployment compensation in the American Rescue Plan Act? (added 3/16/2021)
The starting point in determining an individual's Connecticut income tax liability is the individual's federal adjusted gross income. There are no Connecticut statutory modifications that require this new federal exemption amount to be added back on Connecticut's return. Therefore, the excluded amount is not subject to Connecticut income tax.

Has the Internal Revenue Service (IRS) issued guidance on the unemployment compensation exclusion in the American Rescue Plan Act?
(added 3/16/2021)
Yes. IRS website: New Exclusion of up to $10,200 of Unemployment Compensation

Has DRS issued initial guidance on the federal unemployment compensation exclusion for Connecticut taxpayers? (5/4/2021)

Yes. Please see: Taxpayer Services Special Bulletin TSSB 2021-2, Impact of Federal Unemployment Compensation Exclusion on Connecticut Taxpayers

DRS Taxpayer Service Center

On the DRS Taxpayer Service Center online individual income tax return application, I believe I am eligible for the property tax credit listed on Schedule 3, but a message on the screen says I do not qualify. (added 3/5/2021)
At the top of Schedule 3 - Property Tax Schedule, there are two questions to determine your eligibility for the property tax credit. One box must be selected/checked in order for the credit to be reflected. If you already filed through the DRS Taxpayer Service Center (TSC) - and believe you were eligible for this credit - you can amend your return electronically in the TSC.

Are there circumstances where I cannot file my Connecticut individual income tax return online using the DRS Taxpayer Service Center? (added 3/5/2021)
Yes. For example, if filing a Connecticut individual income tax return with a new status for the first time, the taxpayer should file online using 3rd party software. After filing with Connecticut once using the new filing status, the DRS Taxpayer Service Center (TSC) will be available to use for future tax years.

General Information

When does the DRS individual income tax filing season begin this year?

The DRS Taxpayer Service Center (see 'TSC-Individual Login') began accepting online individual income tax returns beginning the week of Monday, January 18th, 2021.

What is the best way to file my Connecticut income tax return?
DRS strongly recommends electronic filing. The DRS Taxpayer Service Center is an easy, secure, and free option, and electronic filing is the quickest way to get your state refund if you are expecting one. Because Connecticut's individual income tax return begins with federal adjusted gross income, it is often beneficial to file your federal income tax return first.

Where can I find Connecticut individual income tax forms and instructions?
Visit the DRS website here. While paper forms may be helpful in preparing your return, DRS highly recommends electronic filing when you are ready to file.

What is the best way to contact DRS if I have a question about state taxes or my state income tax return?
To reach DRS by phone during normal business hours – Monday to Friday, 8:30 a.m. to 4:30 p.m. - call 860-297-5962 (from anywhere); 800-382-9463 (within CT, outside Greater Hartford area only); or 860-297-4911 (Hearing Impaired, TDD/TT users only). Taxpayers may also email DRS at DRS@po.state.ct.us.

Does DRS offer assistance via video conference?
Yes. Taxpayers can schedule an appointment to receive DRS tax assistance from the comfort of their own homes, from a trained DRS professional during normal business hours. To schedule an appointment, contact the DRS Taxpayer Service Center at 860-297-5770 (you may leave a voicemail). Taxpayers should be prepared with the pertinent tax information before contacting DRS to ensure an efficient customer service outcome.

Why did I receive a DRS Refund Protection Letter? (added 3/5/2021)
The DRS Refund Protection Program identifies the possibility of identity theft or a fraudulent tax refund claim. If a taxpayer receives this letter from DRS, visit the website indicated and follow the instructions. While this process may cause a brief delay for those entitled to a refund, the result is much better protection for taxpayers and the State of Connecticut. If you have a concern or question about a communication from DRS, do not hesitate to call the agency.

Has DRS issued guidance on Public Act 2021-3, regarding Connecticut tax impact for employees working remotely during Covid-19 for tax year 2020?

Commissioner's Bulletin - Issued March 5th, 2021

Taxpayer Services Special Bulletin (TSSB) 2021-1, Update to Commissioner’s Bulletin – Issued March 26th, 2021

Taxpayer Services Special Bulletin (TSSB) 2021-2, Impact of Federal Unemployment  Compensation Exclusion on CT Taxpayers (updated 05/04/2021)

What public announcements has DRS made about the 2021 Connecticut income tax filing season?

2/9/2021: Revenue Services: Online individual income tax filing for Connecticut returns available

3/5/2021: AG, DRS, and DCP warn against fraud, ID theft, and scams during income tax filing season

3/18/2021: CT filing, payment deadlines for individual income tax returns extended to May 17th, 2021

4/12/2021: Important Reminders for the 2021 Filing Season

5/11/2021: Reminder: Connecticut Personal Income Tax Returns (Forms CT-1040 and CT-1040NR/PY) and Payments Due May 17th