Complete resource guide to Connecticut Taxes.
Connecticut Personal Income Tax | CT DRS |
---|---|
Tax Assistance | 860-297-5962 |
Tax Assistance (Inside CT) | 800-382-9463 |
Forms and Instructions | Forms |
Residents Tax Forms | CT-1040 |
Party Year and Nonresidents Tax Forms | CT-1040NR/PY |
IRS Tax Refund Check | IRS Tax Refund Status |
CT Tax Refund Check | CT Tax Refund Status |
CT Tax Refund Assistance | 860-297-5962 |
CT Unemployment | CT Unemployment |
CT Income Tax Due Date | April 15 |
CT Income Tax Extension | Form 1040EXT or IRS Form 4868 |
Connecticut Business Taxes | |
CT Dept of Revenue – Sales Tax | CT Sales Tax |
CT Withholding Tax | CT Withholding Taxes |
CT Dept of Labor | CT Unemployment Insurance Tax |
Connecticut Tax Filing Requirements
- Had Connecticut income tax withheld
- Made estimated tax payments
- Meet the gross income test
- Are claiming the Connecticut Earned Income Tax Credit.
Connecticut Tax Filing Required if | Gross Income Exceeds |
---|---|
Single | $15000 |
Married Filing Jointly | $24000 |
Married Filing Separately | $12000 |
Head of House | $19000 |
Qualifying Widower | $24000 |
Connecticut State income tax ranges from 3% to 6.99% for the current tax year.
Connecticut Income Tax Forms
- Form CT-1040,Connecticut Resident Income Tax Return.
- Schedule CT-EITC, Connecticut Earned Income Tax Credit.
- Form CT-1040NR/PY, Connecticut Nonresident and Part-Year Resident Income Tax Return.
- Schedule CT-SI, Nonresident or Part-Year Resident Schedule of Income From Connecticut Sources.
- Schedule CT-1040AW, Part-Year Resident Income Allocation.
- Schedule CT-1040BA, Nonresident Business Apportionment Schedule.
Connecticut Income Tax Brackets
CT Tax Bracket | Single/MFS | Head of House | MFJ |
---|---|---|---|
3% | 0-10000 | 0-16000 | 0-20000 |
5% | 10001-50000 | 16001-80000 | 20001-100000 |
5.5% | 50001-100000 | 80001-160000 | 100001-200000 |
6% | 100001-200000 | 160001-320000 | 200001-400000 |
6.5% | 200001-250000 | 320001-400000 | 400001-500000 |
6.9% | 250001-500000 | 400001-800000 | 500001-1000000 |
6.99% | 500001 and over | 800000 and over | 1000000 and over |
Connecticut Income Tax Extension:
Connecticut allows an automatic extension to October 15 if no additional tax is due and if a federal extension request is filed. If additional tax is due, file Form CT-1040 EXT, Application for Extension of Time to File Connecticut Income Tax Return for Individuals, to request an extension to October 15.
Extension mailing addresses: Form CT-1040 EXT (No Payment) Department of Revenue Services, P.O. Box 2976, Hartford, CT 06104-2976 Form CT-1040 EXT (With Payment) Department of Revenue Services, P.O. Box 2977, Hartford, CT 06104-2977
Tax Forms and Payment Mailing Address
Tax forms with payment Department of Revenue Services P.O. Box 2977 Hartford, CT 06104-2977 Tax forms without payment Department of Revenue Services P.O. Box 2976 Hartford, CT 06104-2976 Form CT-1040V Payment Voucher Department of Revenue Services e-File payment voucher P.O. Box 2921 Hartford, CT 06104-2921
Connecticut Estimated Tax Information
An underpayment penalty may apply if the balance due is $1,000 or more. The required annual payment is the lesser of:
- 90% of the income tax shown on the current CT tax return, or
- 100% of the income tax shown on the previous CT tax return, assuming that return covered a 12-month period.
CT Estimated Payment Period | Due Date |
---|---|
1st Quarter (January – March) | April 15 |
2nd Quarter (April – June) | June 15 |
3rd Quarter (July – September) | September 15 |
4th Quarter (October – December) | January 15 |
Connecticut Estimated Tax Payment Mailing Address:
Form CT-1040ES Department of Revenue Services P.O. Box 2932 Hartford, CT 06104-2932
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