Individual Income Tax Filers:  DRS will be holding a webinar on Wednesday, April 2, at 10:00 a.m.  This session will provide information for filing 2024 Connecticut income tax returns and helpful tips for electronically filing such returns. Select here to register.


New Businesses:  DRS will be holding a webinar on Wednesday, April 16, at 10:00 a.m. This session will provide an overview of the requirements for registering a new business with DRS. Select here to register.

2024 Form Updates


The following is a list of revisions to the 2024 forms and/or instructions.


Date: January 14, 2025

Product Title:  2024 Form CT-1040, Connecticut Resident Income Tax Return Instructions

Revision Date:  January 14, 2025

Other Products Impacted: Electronic calculation of 2024 Form CT-1040, Schedule 1, Line 48b, Pension or Annuity Income and 2024 Form CT-1040, Connecticut Resident Income Tax Return Printed Booklet.

Internal Distribution:  General distribution

Electronic calculation of 2024 Form CT-1040, Schedule 1, Line 48b, Pension or Annuity Income, is updated to include the Pension and Annuity Worksheet in such calculation.   

2024 Form CT-1040 Instructions, Page 10, Line 48b: Pension or Annuity Income - Adjustments to Income, first paragraph replaced to read as follows:

If your filing status is single, married filing separately, or head of household with federal AGI for the taxable year of less than $100,000 or married filing jointly with federal AGI of less than $150,000, and you receive distributions from certain pensions and annuities, such as from a defined benefit plan, 401(k), 403(b) or 457(b) plans, or distributions from an IRA (other than a Roth IRA), you may qualify for this subtraction modification. Use the Pension and Annuity Worksheet on Page 28 to determine the amount to enter on this line.

2024 Form CT-1040 Instructions, Page 10, Example 2 replaced to read as follows:

Example 2: Aubrey’s filing status on her Connecticut resident return is single. She receives $40,000 from the Teachers’ Retirement System and $25,000 in pension payments from ABC Company for the taxable year. Both amounts are included in Aubrey’s federal gross income, and her federal AGI is more than $100,000. On the Connecticut return for the taxable year, Aubrey may subtract $20,000 ($40,000 x 50%) on Line 45, Schedule 1, Form CT‑1040, and $0 as a pension and annuity income subtraction modification on Line 48b, Schedule 1, Form CT‑1040.

2024 Form CT-1040 Pension and Annuity Worksheet has been added to Page 28 of the instructions.


Date: January 14, 2025

Product Title: 2024 Form CT-1040NR/PY, Connecticut Nonresident and Part-Year Resident Income Tax Return Instructions

Revision Date:  January 14, 2025

Other Products Impacted: Electronic calculation of 2024 Form CT-1040NR/PY, Schedule 1, Line 50b, Pension or Annuity Income

Internal Distribution:  General distribution

Electronic calculation of 2024 Form CT-1040NR/PY, Schedule 1, Line 50b, Pension or Annuity Income, is updated to include the Pension and Annuity Worksheet in such calculation. 

2024 Form CT-1040NR/PY Instructions, Page 8, Line 50b: Pension or Annuity Income - Adjustments to Income, first paragraph replaced to read as follows:

If your filing status is single, married filing separately, or head of household with federal AGI for the taxable year of less than $100,000 or married filing jointly with federal AGI of less than $150,000, and you receive distributions from certain pensions and annuities, such as from a defined benefit plan, 401(k), 403(b) or 457(b) plans, or distributions from an IRA (other than a Roth IRA), you may qualify for this subtraction modification. Use the Pension and Annuity Worksheet on Page 28 to determine the amount to enter on this line.

2024 Form CT-1040NR/PY Instructions, Page 9, Example 2 replaced to read as follows:

Aubrey’s filing status on her Connecticut nonresident and part-year resident return is single. She receives $40,000 from the Teachers’ Retirement System and $25,000 in pension payments from ABC Company for the taxable year. Both amounts are included in Aubrey’s federal gross income, and her federal AGI is more than $100,000. On the Connecticut nonresident and part-year resident return for the taxable year, Aubrey may subtract $20,000 ($40,000 x 50%) on Line 47, Schedule 1, Form CT 1040NR/PY, and $0 as a pension and annuity income subtraction modification on Line 50b, Schedule 1, Form CT 1040NR/PY.

2024 Form CT-1040NR/PY Pension and Annuity Worksheet has been added to Page 28 of the instructions.


Date: January 17, 2025

Product Title:  2024 Form CT-1120 HCIC, Human Capital Investment Tax Credit

Revision Date:  January 17, 2025

Electronic calculation of 2024 Form CT-1120 HCIC, Part I, Line 13, Total Tax Credit, is updated to refer to Column B instead of Column C in such calculation.   

2024 Form CT-1120 HCIC, Page 1, Line 13: Total Tax Credit – Adjustment to Line Instructions, Line 13 is updated to read as follows:

Total Tax Credit: Add Line 7 and Line 12, enter here and on Form CT-1120K, Part I-C, Column B.


Date: January 29, 2025

Product Title:  2024 Pension and Annuity Phase-Out Table

Revision Date:  January 29, 2025

Electronic calculation of 2024 Pension and Annuity Phase-Out Table is updated to include:

  • Updated heading from “More Than” to “Greater Than or Equal To”.
  • Under Single, Married Filing Separately or Head of Household, updated the first line, under “Less Than or Equal To” from $75,000 to $74,999.
  • Under Married Filing Jointly, updated the first line, under “Less Than or Equal To” from $100,000 to $99,999.

Forms and Instructions Impacted:


Date: February 28, 2025

Product Title:  2024 Form CT-6251, Connecticut Alternative Minimum Tax Return - Individuals

Revision Date:  February 28, 2025

Other Products Impacted: N/A

2024 Form CT-6251, Page 2, Line 37, is updated to read as follows:

Enter $518,900 if single; $291,850 if filing separately; $583,750 if filing jointly or qualifying surviving spouse; or $551,350 if head of household.