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Form CT-1040 EXT Instructions

are still unable to ﬁ le your return by the extended due date and

Form CT-1040 EXT only extends the time to ﬁ le your Connecticut

income tax return. Form CT-1040 EXT does not extend the time

you have applied for and were granted an extension of time to ﬁ le

to pay your income tax. You must pay the amount of tax that you

for federal purposes using federal Form 2350, you must ﬁ le your

expect to owe on or before the original due date of the return. See

Connecticut return using the federal extension due date. You must

Interest and Penalty.

attach a copy of the federal Form 2350 approval notice to the front

of your Connecticut return.

You may qualify for a six-month extension of time to pay your tax.

To request this extension, you must ﬁ le Form CT-1127, Application

When to File Form CT-1040 EXT

for Extension of Time for Payment of Income Tax, with your timely

File Form CT-1040 EXT on or before April 18, 2017. If your taxable

ﬁ led Connecticut income tax return or extension.

year is other than the calendar year, ﬁ le Form CT-1040 EXT on or

Purpose: Use Form CT-1040 EXT to request a six-month

before the ﬁ fteenth day of the fourth month following the close of

extension to ﬁ le your Connecticut income tax return for individuals.

your taxable year. If the due date falls on a Saturday, Sunday, or

This form also extends the time to ﬁ le your individual use tax. It is

legal holiday, your extension request will be considered timely if

not necessary to include a reason for the Connecticut extension

ﬁ led on the next business day. Form CT-1040 EXT for taxable year

request if you have already ﬁ led an extension request on federal

2016 is due April 15, 2017, which falls on a Saturday, and Monday

Form 4868 with the Internal Revenue Service. If you did not ﬁ le

April 17 is a legal holiday in the District of Columbia (Emancipation

federal Form 4868, you can apply for a six-month extension to ﬁ le

Day). Therefore, if you ﬁ le Form CT-1040 EXT on April 18, 2017, it

your Connecticut income tax return provided you have good cause

will be considered timely ﬁ led.

for your request.

Payment Options

Exception: If you expect to owe no additional Connecticut

Pay Electronically: This option is only available if you ﬁ le Form

income tax for the 2016 taxable year, after taking into account any

CT-1040 EXT electronically and make a payment electronically

Connecticut income tax withheld from your wages or any estimated

on the DRS website through the TSC. You can ﬁ le your return

Connecticut income tax payments you have made, or both, and

any time before the due date and designate the amount

you have requested an extension of time to ﬁ le your 2016 federal

of payment and date of transfer. Your bank account will be

income tax return, you are not required to ﬁ le Form CT-1040 EXT.

debited on the date you indicate. You must pay the balance

The Department of Revenue Services (DRS) will automatically grant

due on or before April 18, 2017, to avoid penalty and interest.

you a six-month extension of time to ﬁ le your 2016 Connecticut

income tax return. If you did not request an extension of time to ﬁ le

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

your federal income tax return, but you are requesting an extension

expected 2016 Connecticut income tax liability using your credit

of time to ﬁ le your Connecticut income tax return, you must ﬁ le

card (American Express®, Discover®, MasterCard®, VISA®) or

Form CT-1040 EXT whether or not you owe additional Connecticut

comparable debit card. A convenience fee will be charged by the

income tax.

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

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

Electronically File Form CT-1040 EXT

you will be given a conﬁ rmation number for your records.

All taxpayers can ﬁ le Form CT-1040 EXT

• Visit: and select State Payments; or

over the Internet using the Taxpayer Service

• Call Ofﬁ cial Payments Corporation toll-free at 1-800-487-4567.

Center (TSC). DRS encourages Connecticut

income tax ﬁ lers to electronically ﬁ le through

Do not send in Form CT-1040 EXT if you make your payment by

the TSC. The TSC is an interactive tool that offers

credit card. All credit card payments for extension requests will

a free, fast, easy, and secure way to conduct business. The TSC

be accepted by the credit card service provider. However, if your

allows taxpayers to securely ﬁ le, pay, and manage their state tax

payment is late, DRS will notify you in writing that your request is denied.

responsibilities electronically at

Pay by Mail: Make your check payable to Commissioner of Revenue

Services. To ensure proper posting of your payment, write “2016 Form

How to Get an Extension to File

CT-1040 EXT” and your Social Security Number(s) (optional) on the

To obtain a Connecticut extension of time to ﬁ le if the exception

front of your check. Be sure to sign your check and paper clip it to

above does not apply, you must:

the front of your return. Do not send cash. DRS may submit your

• Complete Form CT-1040 EXT in its entirety;

check to your bank electronically.

• File it on or before the due date of your return; and

Interest and Penalty

• Pay the amount shown on Line 7.

In general, interest and penalty apply to any portion of the tax not paid

Any payment made with this form is considered an income tax

on or before the original due date of the return. Interest is computed

payment regardless of the amounts you enter on Line 1 and Line 2.

on the underpayment of tax at 1% per month or fraction of a month

Your signature is not required on this form. DRS will notify you only

computed from the original due date to the date of payment.

if your request is denied.

Late Payment Penalty: The penalty for underpayment of tax is 10%

U.S. Citizens or Residents Living Outside the U.S. and Puerto Rico

of the tax that is not paid on or before the original due date of the return.

You must ﬁ le this form if you are:

Late Filing Penalty: If no tax is due, DRS may impose a $50 penalty

• A U.S. citizen or resident living outside the U.S. and Puerto Rico

for the late ﬁ ling of any return or report that is required by law to be ﬁ led.

and your tax home (within the meaning of Internal Revenue Code

(IRC) §162(a)(2)) is outside the U.S. and Puerto Rico; or

Line Instructions

• In the armed forces of the U.S. serving outside the U.S. and

Line 1: Enter the amount that you expect to enter on:

Puerto Rico on the date your federal income tax return is due

Form CT-1040, Line 14, or Form CT-1040NR/PY, Line 16.

and are unable to ﬁ le a timely Connecticut income tax return.

Line 2: Enter the amount that you expect to enter on:

Explain on the front of this form that you are a U.S. citizen or resident

Form CT-1040, Line 15, or Form CT-1040NR/PY, Line 17.

living outside the U.S. and Puerto Rico, or are in the armed forces

Line 4: Enter the amount that you expect to enter on:

of the U.S. serving outside the U.S. and Puerto Rico, and that you

Form CT-1040, Line 18, or Form CT-1040NR/PY, Line 20.

qualify for an automatic, two-month federal income tax extension.

Line 5: Enter the amount that you expect to enter on:

If your application is approved, the due date will be extended for

Form CT-1040, Line 19, or Form CT-1040NR/PY, Line 21.

six months (October 15, 2017, for calendar year taxpayers). If you

Form CT-1040 EXT Back (Rev. 12/16)

Form Ct-1040 Ext - Application For Extension Of Time To File Connecticut Income Tax Return For Individuals - 2016 Page 2

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