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Department of Revenue Services State of Connecticut

(Rev. 02/21)

1040 1220W 01 9999

Form CT-1040	2020
Connecticut Resident Income Tax Return	2020
	CT-1040

Taxpayers must sign declaration on reverse side. Complete return in blue or black ink only. Please note that each form is year specific. To prevent any delay in processing your return, the correct year’s form must be submitted to the Department of Revenue Services (DRS).

For January 1 ‑ December 31, 2020, or other tax year beginning

2 0 2 0

and ending

Filing Status - Check only one box.

M M ‑ D D ‑ Y Y Y Y

Single

Head of household

Married filing separately



Married filing jointly

Qualifying widow(er)

Enter spouse’s name here and SSN below.



and SSN,city name,townor mailinghere.

yourPrint address, 

Your Social Security Number

Spouse’s Social Security Number

Check if

deceased

Your first name

Last name (If two last names, insert a space between names.)

If joint return, spouse’s first name

Last name (If two last names, insert a space between names.)

Mailing address (number and street)

Mailing address 2 (apartment number, PO Box)

City, town, or post office (If town is two words, leave a space between the words.)

State

ZIP code

Enter city or town of residence if different from above.

ZIP code

Check if deceased

Suffix (Jr./Sr.)


Check the appropriate box to identify	Form CT-1040 CRC, Claim of Right Credit		Form CT-8379, Nonobligated Spouse Claim
if you are attaching a completed:
Form CT-2210, Underpayment of Estimated Income Tax by Individuals,		Federal Form 1310, Statement of Person Claiming Refund Due
Trusts, and Estates, checking any box from Part 1.		a Deceased Taxpayer

1.-K 

 Clip check here. Do not use staples. Do not send Forms W-2 or 1099, or Schedules CT

			Whole Dollars Only
1.	Federal adjusted gross income from federal Form 1040, Line 11,			.00

	or federal Form 1040‑SR, Line 11	1.
2.	Additions to federal adjusted gross income from Schedule 1, Line 38	2.
				.00
3.	Add Line 1 and Line 2.	3.
				.00
4.	Subtractions from federal adjusted gross income from Schedule 1, Line 50	4.
				.00
5.	Connecticut adjusted gross income: Subtract Line 4 from Line 3.	5.

				.00
6.	Income tax from tax tables or Tax Calculation Schedule: See instructions.	6.
				.00
7.	Credit for income taxes paid to qualifying jurisdictions from Schedule 2, Line 59	7.
				.00
8.	Subtract Line 7 from Line 6. If Line 7 is greater than Line 6, enter “0.”	8.
				.00
9.	Connecticut alternative minimum tax from Form CT‑6251	9.

				.00
10.	Add Line 8 and Line 9.	10.
				.00
11.	Credit for property taxes paid on your primary residence, motor vehicle, or both:	11.		.00

	Attach completed Schedule 3 on Page 4, Line 68 or your credit will be disallowed.
12.	Subtract Line 11 from Line 10. If less than zero, enter “0.”	12.
				.00
13.	Total allowable credits from Schedule CT‑IT Credit, Part I, Line 11	13.
				.00
14.	Connecticut income tax: Subtract Line 13 from Line 12. If less than zero, enter “0.”	14.
				.00
15.	Individual use tax from Schedule 4, Line 69: If no tax is due, enter “0.”	15.
				.00
16.	Add Line 14 and Line 15.	16.
				.00

Due date: April 15, 2021 - Attach a copy of all applicable schedules and forms to this return. Do not use staples.

For a faster refund, file your return electronically at portal.ct.gov/TSC and choose direct deposit.

Form CT‑1040

Page 2 of 4 (Rev. 02/21)

1040 1220W 02 9999

Your Social Security Number 

	17.	Enter amount from Line 16.							17.				.00
3	Withholding Schedule: You must complete Columns A, B, and C or your withholding will be disallowed.
			Column A - Employer’s federal ID No. from Box b					Column B -			Column C -
Forms W-2			of W‑2, or payer’s federal ID No. from Form 1099				Connecticut wages, tips, etc.			Connecticut income tax withheld


and 1099			18a.						18a.				.00
Information			18b.						18b.				.00
Information
Only enter
information from			18c.						18c.				.00


your Forms
W‑2 and 1099			18d.						18d.				.00
if Connecticut			18d.						18d.				.00
if Connecticut
income tax			18e.						18e.				.00
was withheld.			18e.						18e.				.00

			18f. Additional CT withholding from Supplemental Schedule CT‑1040WH						18f.
									18f.				.00
	18. Total Connecticut income tax withheld:								18.				.00
	18. Total Connecticut income tax withheld:								18.				.00
		Add amounts in Column C, Lines 18a, 18b, 18c, 18d, 18e, and 18f, and enter here.
	19.	All 2020 estimated tax payments and any overpayments applied from a prior year							19.
	19.								19.				.00
	20.	Payments made with Form CT‑1040 EXT (request for extension of time to file)							20.
	20.								20.				.00
	20a. Connecticut earned income tax credit: From Schedule CT‑EITC, Line 16.								20a.
									20a.				.00
	20b. Claim of right credit: From Form CT‑1040 CRC, Line 6.								20b.
	20b. Claim of right credit: From Form CT‑1040 CRC, Line 6.								20b.				.00
	20c. Pass‑Through Entity Tax Credit: From Schedule CT‑PE, Line 1. Schedule must be attached.								20c.
									20c.				.00
	21.	Total payments and refundable credits: Add Lines 18, 19, 20, 20a, 20b and 20c.							21.
	21.								21.				.00
4	22.	Overpayment: If Line 21 is more than Line 17, subtract Line 17 from Line 21.							22.

													.00
	23.	Amount of Line 22 overpayment you want applied to your 2021 estimated tax							23.
	23.								23.				.00
	24.	Amount of Line 22 overpayment you want applied as a CHET contribution											.00
	24.
		from Schedule CT‑CHET, Line 4.							24.
	24a. Total contributions of refund to designated charities from Schedule 5, Line 70								24a.
									24a.				.00
	25.	Refund: Subtract Lines 23, 24, and 24a from Line 22. For direct deposit,							25.
	25.
		complete Lines 25a, 25b, and 25c. Direct deposit is not available to first-time filers.											.00

	25a. Checking			Savings	25c. Account number


	25b. Routing number						25d. Will this refund go to a bank account outside the U.S.?					Yes
	If you do not elect direct deposit, a refund check will be issued and processing may be delayed.
5	26.	Tax due: If Line 17 is more than Line 21, subtract Line 21 from Line 17.							26.				.00
	27.	If late: Enter penalty. Multiply Line 26 by 10% (.10).							27.				.00
	28.	If late: Enter interest. Multiply Line 26 by number of months or fraction of a month											.00
	28.
		late, then by 1% (.01).							28.
	29.	Interest on underpayment of estimated tax from Form CT‑2210:							29.
	29.								29.				.00
		See instructions.
		See instructions.
	30.	Total amount due: Add Lines 26 through 29.							30.				.00

Declaration: I declare under penalty of law that I have examined this return and all accompanying schedules and statements, including reporting

6and payment of any use tax due, and, to the best of my knowledge and belief, it is true, complete, and correct. I understand the penalty for willfully delivering a false return or document to DRS is a fine of not more than $5,000, or imprisonment for not more than five years, or both. The declaration of a paid preparer other than the taxpayer is based on all information of which the preparer has any knowledge.

Sign

HERE

Keep a copy of this return for your records.

Your signature



Spouse’s signature (if joint return)



Your email address

Paid preparer’s signature



Type or print paid preparer’s name

Firm’s name, address, and ZIP code

Date (MMDDYYYY)

Home/cell telephone number



Date (MMDDYYYY)

Daytime telephone number

 

Date (MMDDYYYY)

Telephone number



Firm’s Federal Employer Identification Number (FEIN)

Check if



self‑employed

Paid preparer’s PTIN



Third Party Designee - Complete the following to authorize DRS to contact another person about this return.

Designee’s name

Telephone number

Personal identification number (PIN)



Complete applicable schedules on Pages 3 and 4 and send all four pages of the return to DRS.

Form CT‑1040

Page 3 of 4 (Rev. 02/21)

1040 1220W 03 9999

Your Social Security Number 

Schedule 1 - Modifications to Federal Adjusted Gross Income

See instructions.		Enter all items as positive numbers.

31.	Interest on state and local government obligations other than Connecticut	31.
			.00
32.	Mutual fund exempt‑interest dividends from non‑Connecticut state or municipal		.00

	government obligations	32.
33.	Taxable amount of lump-sum distributions from qualified plans not included in federal		.00

	adjusted gross income	33.
34.	Beneficiary’s share of Connecticut fiduciary adjustment: Enter only if greater than zero.	34.
			.00
35.	Loss on sale of Connecticut state and local government bonds	35.
			.00
36.	Section 168(k) federal bonus depreciation deduction allowed for property placed in service		.00

	during this year.	36.
36a.	80% of Section 179 federal deduction. See instructions.	36a.
			.00
37.	Other ‑ specify 	37.	.00
38.	Total additions: Add Lines 31 through 37. Enter here and on Line 2.	38.	.00
39.	Interest on U.S. government obligations	39.
			.00
40.	Exempt dividends from certain qualifying mutual funds derived from U.S. government obligations	40.
			.00

41.Social Security benefit adjustment: See Social Security Benefit Adjustment Worksheet instructions. 41. .00

42.	Refunds of state and local income taxes	42.	.00
43.	Tier 1 and Tier 2 railroad retirement benefits and supplemental annuities	43.
			.00
44.	Military retirement pay	44.
			.00
45.	25% of income received from the Connecticut Teachers’ Retirement System	45.
			.00
46.	Beneficiary’s share of Connecticut fiduciary adjustment: Enter only if less than zero.	46.
			.00
47.	Gain on sale of Connecticut state and local government bonds	47.
			.00
48.	Connecticut Higher Education Trust (CHET) contributions made in 2020 or		.00

	an excess carried forward from a prior year. See instructions.	48.
	Enter CHET account number:
	Do not add spaces or dashes.
48a.	25% of Section 168(k) federal bonus depreciation deduction added back in preceding three years.	48a.	.00
48b.	28% of pension or annuity income. See instructions.	48b.
			.00
49.	Other ‑ specify: Do not include out of state income 	49.	.00

50.	Total subtractions: Add Lines 39 through 49. Enter here and on Line 4.	50.	.00

Schedule 2 - Credit for Income Taxes Paid to Qualifying Jurisdictions

You must attach a copy of your return filed with the qualifying jurisdiction(s) or your credit will be disallowed. See instructions.

51.	Modified Connecticut adjusted gross income		51.
				Column A
			Name
52.	Enter qualifying jurisdiction’s name and two‑letter code	52.
52.	Enter qualifying jurisdiction’s name and two‑letter code	52.
53.	Non‑Connecticut income included on Line 51 and reported on a
	qualifying jurisdiction’s income tax return from Schedule 2 Worksheet	53.
54.	Divide Line 53 by Line 51. May not exceed 1.0000	54.	.
55.	Income tax liability. Subtract Line 11 from Line 6	55.
55.	Income tax liability. Subtract Line 11 from Line 6	55.
56.	Multiply Line 54 by Line 55	56.
57.	Income tax paid to a qualifying jurisdiction	57.
58.	Enter the lesser of Line 56 or Line 57	58.
59.	Total credit: Add Line 58, all columns. Enter here and on Line 7		59.

		.00
			Column B
Code	Name			Code


.00
.00					.00

		.


.00						.00
.00						.00
.00

						.00
.00

					.00
.00

					.00

		.00

Complete applicable schedules on Page 4 and send all four pages of the return to DRS.

Form CT‑1040

Page 4 of 4 (Rev. 02/21)

1040 1220W 04 9999

Your Social Security Number 

Schedule 3 - Property Tax Credit ‑ You must check one or both boxes to claim this credit.

Your credit will be disallowed STOP if you do not check the

corresponding box.

You or your spouse are 65 years of age or older		check here; OR

You claim one or more dependents on your federal income tax return

check here.

Qualifying Property	Name of	Description of Property	Date(s) Paid
	Connecticut Tax If primary residence, enter street address. If		(MMDDYYYY)
	Town or District motor vehicle, enter year, make, and model.

Amount Paid

60. Primary Residence  

61. Auto 1



62.Auto 2 ‑ Married filing   jointly or qualifying widow(er) only.

63.Total property tax paid: Add Lines 60, 61, and 62.

64.Maximum property tax credit allowed.

65.Enter the lesser of Line 63 or Line 64.

 


60.		.00
61.
		.00
62.
		.00
63.
		.00
64. 
	2 0 0		.00

65. .00

66.Enter the decimal amount for your filing status and Connecticut AGI from the Property Tax Credit Table.

If zero, enter the amount from Line 65 on Line 68.

67.Multiply Line 65 by Line 66.

68.Subtract Line 67 from Line 65. Enter here and on Line 11. Attach Schedule 3 to your return or your credit will be disallowed.

66. 	.

67. .00

68. .00

Failure to report and pay use tax is subject to as much as a

Schedule 4 - Individual Use Tax $5,000 fine, imprisonment for as much as 5 years, or both.

Do you owe use tax for online or other purchases where you paid no sales tax? See instructions. Complete the Connecticut Individual Use Tax Worksheet to calculate your use tax liability. See instructions.

69a.	Total use tax due at 1%: From Connecticut Individual Use Tax Worksheet, Section A, Column 7	69a.					.00
69b.	Total use tax due at 6.35%: From Connecticut Individual Use Tax Worksheet, Section B, Column 7	69b.
					.00
69c.	Total use tax due at 7.75%: From Connecticut Individual Use Tax Worksheet, Section C, Column 7	69c.
						.00
69d. Total use tax due at 2.99%: From Connecticut Individual Use Tax Worksheet, Section D, Column 7		69d.
						.00
69.	Individual use tax: Add Lines 69a through 69d. If no use tax is due, you must enter “0.”
	Enter here and on Line 15.	69.				.00
Schedule 5 - Contributions to Designated Charities ‑ See instructions.				.00
70a. AIDS Research		70a.
70b. Organ Transplant		70b.		.00
70c. Endangered Species/Wildlife		70c.		.00
70d. Breast Cancer Research		70d.		.00
70e. Safety Net Services		70e.		.00
70f. Military Relief		70f.		.00
70g. CHET Baby Scholars		70g.		.00
70h. Mental Health Community Investment Account		70h.		.00
70. Total Contributions: Add Lines 70a through 70h. Enter amount here and on Line 24a.		70.		.00

Complete and send all four pages of the return to DRS.

Use the correct mailing address for returns with a payment or requesting a refund.		Make your check payable to:
		Commissioner of Revenue Services
For all tax forms with payment:	For refunds and all other tax forms without payment:	Commissioner of Revenue Services
Department of Revenue Services	Department of Revenue Services	To ensure proper posting, write your
PO Box 2977	PO Box 2976	SSN(s) (optional) and “2020 Form
Hartford CT 06104‑2977	Hartford CT 06104‑2976	CT-1040” on your check.

Question	Answer
Form Name	Ct1040 Form
Form Length	4 pages
Fillable?	No
Fillable fields	0
Avg. time to fill out	1 min
Other names	Connecticut Resident Income Tax Return - It's Your ..., CT-1040

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