Connecticut 2025 2025 Regular Session

Connecticut Senate Bill SB01558 Introduced / Bill

Filed 04/08/2025

                         
 
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General Assembly  Raised Bill No. 1558  
January Session, 2025 
LCO No. 7060 
 
 
Referred to Committee on FINANCE, REVENUE AND 
BONDING  
 
 
Introduced by:  
(FIN)  
 
 
 
 
AN ACT CONCERNING INCOME TAXES IMPOSED BY OTHER 
JURISDICTIONS ON RESIDENTS OF THE STATE. 
Be it enacted by the Senate and House of Representatives in General 
Assembly convened: 
 
Section 1. Subsection (a) of section 12-704 of the general statutes is 1 
repealed and the following is substituted in lieu thereof (Effective January 2 
1, 2026, and applicable to taxable years commencing on or after January 1, 3 
2026): 4 
(a) (1) Any resident or part-year resident of this state shall be allowed 5 
a credit, subject to the provisions of subdivision (6) of this subsection, 6 
against the tax otherwise due under this chapter in the amount of any 7 
income tax imposed on such resident or part-year resident for the 8 
taxable year by another state of the United States or a political 9 
subdivision thereof or the District of Columbia on income derived from 10 
sources therein and [which] that is also subject to tax under this chapter. 11 
(2) In the case of a resident, the credit provided under this section 12 
shall not exceed the proportion of the tax otherwise due under this 13 
chapter that the amount of the taxpayer's Connecticut adjusted gross 14     
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income derived from or connected with sources in the other taxing 15 
jurisdiction bears to such taxpayer's Connecticut adjusted gross income 16 
under this chapter. The provisions of this section shall also apply to 17 
resident trusts and estates and, wherever reference is made in this 18 
section to residents of this state, such reference shall be construed to 19 
include resident trusts and estates. 20 
(3) In the case of a part-year resident, the credit provided under this 21 
section shall not exceed the proportion of the tax otherwise due during 22 
the period of residency under this chapter that the amount of the 23 
taxpayer's Connecticut adjusted gross income derived from or 24 
connected with sources in the other jurisdiction during the period of 25 
residency bears to such taxpayer's Connecticut adjusted gross income 26 
during the period of residency under this chapter. The provisions of this 27 
section shall also apply to part-year resident trusts and, wherever 28 
reference is made in this section to part-year residents of this state, such 29 
reference shall be construed to include part-year resident trusts. 30 
(4) The allowance of the credit provided under this section shall not 31 
reduce the tax otherwise due under this chapter to an amount less than 32 
what would have been due if the income subject to taxation by such 33 
other jurisdiction were excluded from Connecticut adjusted gross 34 
income. 35 
(5) For purposes of this subsection, a tax on wages that is paid to 36 
another state of the United States or a political subdivision thereof or the 37 
District of Columbia by an employer on behalf of an employee and for 38 
which a credit is allowed by such other jurisdiction shall be considered 39 
an income tax and a comparable credit may be claimed by the resident 40 
or part-year resident, subject to the limitations set forth in this 41 
subsection, in the form and manner prescribed by the commissioner. 42 
(6) Notwithstanding the provisions of subdivisions (2) and (3) of this 43 
subsection, the portion of the amount of any credit allowed pursuant to 44 
this section that is attributable to income derived from services rendered 45     
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while such resident or part-year resident was within this state shall be 46 
multiplied by ninety-nine-hundredths per cent. 47 
Sec. 2. (Effective from passage) The Attorney General shall study 48 
specific steps the office of the Attorney General may take to defend 49 
residents of this state from having taxes imposed by another state of the 50 
United States or a political subdivision thereof or the District of 51 
Columbia on income derived from services rendered while such 52 
resident was within this state. Not later than January 1, 2026, the 53 
Attorney General shall submit a report, in accordance with the 54 
provisions of section 11-4a of the general statutes, of the findings of such 55 
study and any recommendations of said office to the joint standing 56 
committee of the General Assembly having cognizance of matters 57 
relating to finance, revenue and bonding. 58 
Sec. 3. (NEW) (Effective from passage) For taxable years commencing 59 
on or after January 1, 2020: 60 
(1) A resident of this state who satisfies the provisions of 61 
subparagraphs (A) to (D), inclusive, of this subdivision shall be allowed 62 
a credit against the tax otherwise due for the applicable taxable year 63 
under chapter 229 of the general statutes, other than the liability 64 
imposed by section 12-707 of the general statutes, in an amount equal to 65 
fifty per cent of the amount of taxes owed to this state as a result of the 66 
readjustment of the credit for taxes paid to another state of the United 67 
States or a political subdivision thereof or the District of Columbia, 68 
pursuant to section 12-704 of the general statutes, as amended by this 69 
act. To be eligible for the credit under this section, such resident shall 70 
have: 71 
(A) Paid any income tax or wage tax imposed for the taxable year by 72 
another state of the United States or a political subdivision thereof or the 73 
District of Columbia; 74 
(B) Applied for and been denied a refund from such other jurisdiction 75 
for taxes paid to such other jurisdiction on income derived from services 76     
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rendered while such resident was within this state; 77 
(C) Filed an appeal with a court or tribunal through which such 78 
resident formally protested such denial; and 79 
(D) Obtained a final decision that resulted in such resident being 80 
refunded taxes paid to such other jurisdiction on income derived from 81 
services rendered while such resident was within this state. 82 
(2) No penalty or interest shall be imposed on any late payment of 83 
the tax due under chapter 229 of the general statutes, other than the 84 
liability imposed by section 12-707 of the general statutes, if (A) such 85 
late payment is attributable to a reduction in the credit for taxes paid 86 
under section 12-704 of the general statutes, as amended by this act, (B) 87 
such reduction in the credit for taxes paid is the direct result of a refund 88 
that a resident of this state received from another state of the United 89 
States or a political subdivision thereof or the District of Columbia, (C) 90 
such refund relates to income derived from services rendered while 91 
such resident was not within such other jurisdiction, and (D) such other 92 
jurisdiction requires employee income to be sourced to an employer's 93 
location if a nonresident renders services from an out-of-state location. 94 
This act shall take effect as follows and shall amend the following 
sections: 
 
Section 1 January 1, 2026, and 
applicable to taxable years 
commencing on or after 
January 1, 2026 
12-704(a) 
Sec. 2 from passage New section 
Sec. 3 from passage New section 
 
Statement of Purpose:   
To (1) reduce a portion of the amount of the credit for income taxes paid 
to other states, (2) require the Attorney General to study ways to defend 
residents from having income tax imposed by other jurisdictions on 
income derived from services rendered while such resident was within     
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this state, and (3) provide a credit to residents who file an appeal 
protesting the tax imposed by such other jurisdiction. 
 
[Proposed deletions are enclosed in brackets. Proposed additions are indicated by underline, except 
that when the entire text of a bill or resolution or a section of a bill or resolution is new, it is not 
underlined.]