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Form CT-1120 EXT

Instructions

Complete this form in blue or black ink only.

The following penalties will apply if a required electronic

funds transfer (EFT) payment is remitted late:

Use Form CT-1120 EXT, Application for Extension of Time to

File Corporation Business Tax Return, to request a six-month

• 2% of the required tax due for EFT payments not more than

extension to ﬁ le Form CT-1120, Corporation Business Tax

5 days late;

Return, Form CT-1120CR, Combined Corporation Business

• 5% of the required EFT payments more than 5 days late

Tax Return, or Form CT-1120U, Unitary Corporation

but not more than 15 days late; and

Business Tax Return. It is not necessary to include a reason

• 10% of the required EFT payments more than 15 days late.

for the Connecticut extension request if an extension on

The following graduated penalty amounts will apply if you fail

federal Form 7004, Application for Automatic Extension of

to remit payments electronically:

Time to File Certain Business Income Tax, Information, and

Other Returns, was ﬁ led with the Internal Revenue Service.

• First offense – 10% penalty on the amount of the tax

payment, but not more than $2,500;

If federal Form 7004 was not ﬁ led, the corporation may apply

for a six-month extension to ﬁ le the Connecticut corporation

• Second offense – 10% penalty, but not more than $10,000;

business tax return if there is reasonable cause for the

and

request.

• Third and subsequent offenses – 10% penalty.

To get a Connecticut ﬁ ling extension the corporation

Pay by Mail: If you have received a waiver from the

MUST:

electronic payment requirement, make your check payable to

• Complete Form CT-1120 EXT in its entirety;

Commissioner of Revenue Services. To ensure payment is

applied to your account, write

“2015

Form CT-1120 EXT” and

• File it on or before the ﬁ rst day of the month following the

the corporation’s Connecticut Tax Registration Number on

due date of the company’s corresponding federal income

the front of the check. Be sure to sign your check and paper

tax return for the income year (April 1 for calendar year

clip it to the front of your return. Do not send cash. DRS may

taxpayers); and

submit your check to your bank electronically.

• Pay the amount shown on Line 13.

Mail paper return with payment to:

Form CT-1120 EXT extends only the time to file the

Department of Revenue Services

Connecticut corporation business tax return. Form CT-1120

State of Connecticut

EXT does not extend the time to pay the amount of tax due.

PO Box 2974

When to File

Hartford CT 06104-2974.

File Form CT-1120 EXT on or before the ﬁ rst day of the

Mail paper return without payment to:

month following the due date of the company’s corresponding

Department of Revenue Services

federal income tax return for the income year (April 1 for

State of Connecticut

calendar year taxpayers). In the case of any company that is

PO Box 150406

not required to ﬁ le a federal income tax return for the income

Hartford CT 06115-0406.

year, the Connecticut corporation business tax return must be

ﬁ led on or before the ﬁ rst day of the fourth month following

Payment Options

the end of the income year.

Pay Electronically: Visit the DRS Taxpayer Service Center

If the due date falls on a Saturday, Sunday, or legal holiday,

(TSC) at to make a direct tax payment.

the return is considered timely if ﬁ led on the next business

After logging into the TSC, select the Make

day.

Payment Only option and choose a tax type

from the drop down box. Using this option

Electronic Filing and Payment Requirements

authorizes DRS to electronically withdraw a

For income years beginning on or after January 1, 2014,

payment from your bank account (checking or savings) on a

Form CT-1120 and Form CT-1120U must be ﬁ led and paid

date you select up to the due date. As a reminder, even if you

electronically, and all corporations must ﬁ le and pay their

pay electronically you must still ﬁ le your return on or before

estimated taxes (Forms CT-1120 ESA, ESB, ESC and ESD)

the due date. Tax not paid on or before the due date will be

and extension requests (Form CT-1120 EXT) electronically.

subject to penalty and interest.

See Information Publication 2014(15), Filing and Paying

Pay by Credit Card or Debit Card: You may elect to pay

Connecticut Taxes Electronically.

your tax liability using a credit card (American Express®,

Discover®, MasterCard®, or VISA®) or comparable debit

To request a waiver from the electronic ﬁ ling requirement visit

card. A convenience fee will be charged by the service

ling and complete Form DRS-EWVR,

provider. You will be informed of the amount of the fee and

Electronic Filing and Payment Waiver Request.

you may elect to cancel the transaction. At the end of the

transaction you will be given a conﬁ rmation number for your

records.

Form CT-1120 EXT (Rev. 12/15)

Page 2 of 3

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Form Ct-1120 Ext Draft - Application For Extension Of Time To File Corporation Business Tax Return - 2015 Page 2

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