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2015 Individual IncomeTax Forms

Instruction Booklets
 Name Description
Revised Date
CT-1040  2015 Connecticut Resident Income Tax Instruction Booklet 03/2016
CT-1040NR/PY 2015 Nonresident/Part-Year Resident Tax Instruction Booklet 12/2015
Corrected Property Tax Tables Updated Property Tax Tables 03/2016

Forms & Instructions

Name
Description Revised Date
CT-1040
2015 Resident Income Tax Return
12/2015
CT-1040NR/PY
2015 Nonresident/Part-Year Resident Tax Return
12/2015
Schedule
CT-SI

Nonresident or Part-Year Resident Schedule of Income from Connecticut Sources
12/2015
Schedule CT-EITC
2015 Connecticut Earned Income Tax Credit
12/2015
Schedule
CT-IT Credit

Schedule CT-IT Credit
12/2015
CT-1040 AW
Part-Year Resident Income Allocation Worksheet
12/2015
CT-1040BA
Nonresident Business Apportionment Schedule
12/2015
Schedule
CT-1040WH
 Connecticut Income Tax Withholding Supplemental Schedule 12/2015
Schedule
CT-CHET
 2015 Connecticut Higher Education Trust (CHET) 529 College Savings Plan Contribution 12/2015
CT-1040CRC  Claim of Right Credit 12/2015
CT-1040EFW  Connecticut Electronic Withdrawal Payment Record 12/2015
CT-1040V  Connecticut Electronic Filing Payment Voucher 12/2015
CT-1127  Application for Extension of Time for Payment of Income Tax 12/2015
CT-19 IT  Title 19 Status Release Form 12/2015 
CT-2210  Underpayment of Estimated Income Tax by Individuals, Trusts and Estates (Schedules A & B) 12/2015
CT-3911  Taxpayer Statement Regarding Refund - Use this form to report a lost, stolen or missing refund check 12/2015 
CT-4852  Substitute for Forms W-2 and 1099-R 12/2015 
CT-6251  Connecticut Alternative Minimum Tax Return 12/2015 
CT-8379  Nonobligated Spouse Claim 12/2015 
CT-8801  Credit for Prior Year Connecticut Minimum Tax for Individuals, Trusts and Estates 12/2015
CT-8857  Request for Innocent Spouse Relief 01/2015
CT-IRF  Insurance Reinvestment Fund Credit 12/2015
OP-186  Individual Use Tax Return 09/2015
CT-1040X  Amended Income Tax Return for Individuals 12/2015
CT-12-717A  Change of Resident Status - Special Accruals Connecticut Surety Bond Form 2016
CT-12-717B  Change of Resident Status - Special Accruals Other Acceptable Security Form 2016
CT-12-717A&B  Forms CT-12-717 A and CT-12-717 B Instructions 2016
 
Tax Tables & Calculators
Name Description Revised Date

2015 Tax Tables to $500K

 12/2015

2015 Tax Tables to $102K

 12/2015
Calculation Schedule  Use this schedule to calculate the tax if your a.g.i is over $102,000  12/2015
Income Tax Calculator  Use this calculator to determine your tax liability, regardless of your a.g.i.  12/2015
Property Tax Calculator  Use this calculator to determine the amount of your property tax credit  12/2015