Connecticut Income Tax Calculator
Estimate your Connecticut income tax burden
Updated for 2024 tax year on Dec 19, 2024
What was updated?
Fixed calculation error with Adjusted Gross Income
Calculation not correct? Request new features?
Calculate your income tax in these states
How to calculate your Connecticut income taxes
Table of Contents
Understanding your Connecticut income taxes
With a progressive tax system, the rates range from 3% to 6.99%, ensuring that each individual contributes according to income level.
Connecticut has a separate state payroll tax of 0.5% up to a certain taxable wage. The state also recapture tax from high income earners.
When it comes to exemptions, Connecticut offers a generous palette. Single filers receive a standard deduction ranging from $14,500 to $24,000 based on their income, while joint filers get a range from $24,000 to $48,000.
Calculate your income tax in Connecticut
- Work out your total federal income tax
- Gross income adjusted
Gross income − Pre-tax deductions = Gross income adjusted - Federal taxable income
Gross income adjusted − Federal standard/itemized deductions = Federal taxable income - Federal income tax liability
Federal taxable income × Federal income tax rate = Federal income tax liability - Federal payroll tax liability
Gross income × Federal payroll tax rate = Federal payroll tax liability
- Gross income adjusted
- Calculate your total Connecticut state income tax
- Connecticut state taxable income
Gross income adjusted − (Connecticut state itemized deductions + Connecticut state exemptions) = Connecticut state taxable income - Connecticut state income tax liability
State taxable income × Connecticut state income tax rate = Connecticut state income tax liability - Connecticut state payroll tax liability
Gross income × Connecticut state payroll tax rate = Connecticut state payroll tax liability
- Connecticut state taxable income
- Add up all the taxes
Federal income tax liability + Federal payroll tax liability + Connecticut state income tax liability + Connecticut state payroll tax liability = Your total income tax liability
State payroll tax
| Tax year | Tax name | Percent of taxable wage | Up to taxable wage |
|---|---|---|---|
| 2024 | Paid Family and Medical Leave (PFML) | 0.50% | $168,600 |
| 2023 | 0.50% | $160,200 | |
| 2022 | 0.50% | $147,000 | |
| 2021 | 0.50% | $142,800 | |
| 2020 | 0.50% | $137,700 |
State income tax brackets
Each filer type has different progressive tax rates. Refer to Tax Foundation for more details.
| Tax year | Filing status | Taxable income | Rate |
|---|---|---|---|
| 2024 | Single Married, Filing Separately |
$0 – $10,000 | 2.00% |
| $10,000 – $50,000 | 4.50% | ||
| $50,000 – $100,000 | 5.50% | ||
| $100,000 – $200,000 | 6.00% | ||
| $200,000 – $250,000 | 6.50% | ||
| $250,000 – $500,000 | 6.90% | ||
| $500,000+ | 6.99% | ||
| Married, Filing Jointly or Widow(er) | $0 – $20,000 | 2.00% | |
| $20,000 – $100,000 | 4.50% | ||
| $100,000 – $200,000 | 5.50% | ||
| $200,000 – $400,000 | 6.00% | ||
| $400,000 – $500,000 | 6.50% | ||
| $500,000 – $1,000,000 | 6.90% | ||
| $1,000,000+ | 6.99% | ||
| Head of Household | $0 – $16,000 | 2.00% | |
| $16,000 – $80,000 | 4.50% | ||
| $80,000 – $160,000 | 5.50% | ||
| $160,000 – $320,000 | 6.00% | ||
| $320,000 – $400,000 | 6.50% | ||
| $400,000 – $800,000 | 6.90% | ||
| $800,000+ | 6.99% | ||
| 2023 2022 2021 2020 |
Single Married, Filing Separately |
$0 – $10,000 | 3.00% |
| $10,000 – $50,000 | 5.00% | ||
| $50,000 – $100,000 | 5.50% | ||
| $100,000 – $200,000 | 6.00% | ||
| $200,000 – $250,000 | 6.50% | ||
| $250,000 – $500,000 | 6.90% | ||
| $500,000+ | 6.99% | ||
| Married, Filing Jointly or Widow(er) | $0 – $20,000 | 3.00% | |
| $20,000 – $100,000 | 5.00% | ||
| $100,000 – $200,000 | 5.50% | ||
| $200,000 – $400,000 | 6.00% | ||
| $400,000 – $500,000 | 6.50% | ||
| $500,000 – $1,000,000 | 6.90% | ||
| $1,000,000+ | 6.99% | ||
| Head of Household | $0 – $16,000 | 3.00% | |
| $16,000 – $80,000 | 5.00% | ||
| $80,000 – $160,000 | 5.50% | ||
| $160,000 – $320,000 | 6.00% | ||
| $320,000 – $400,000 | 6.50% | ||
| $400,000 – $800,000 | 6.90% | ||
| $800,000+ | 6.99% |
3% tax rate phase-out
Higher income earners will have their 3% tax rate phased out and replaced with the 5% tax rate. For example, if a single filer earns $60,000, his/her first $1000 will be taxed at 5% instead of 3%.
For more information, please refer to Connecticut’s Form CT-1040 TCS.
| Tax year | Filing status | Connecticut Adjusted Gross Income | Additional tax liability | |
|---|---|---|---|---|
| More than | Less than or equal to | |||
| 2024 2023 2022 2021 2020 |
Single | $0 | $56,500 | $0 |
| $56,500 | $61,500 | $20 | ||
| $61,500 | $66,500 | $40 | ||
| $66,500 | $71,500 | $60 | ||
| $71,500 | $76,500 | $80 | ||
| $76,500 | $81,500 | $100 | ||
| $81,500 | $86,500 | $120 | ||
| $86,500 | $91,500 | $140 | ||
| $91,500 | $96,500 | $160 | ||
| $96,500 | $101,500 | $180 | ||
| $101,500 | $200 | |||
| Married, Filing Jointly or Widow(er) | $0 | $100,500 | $0 | |
| $100,500 | $105,500 | $40 | ||
| $105,500 | $110,500 | $80 | ||
| $110,500 | $115,500 | $120 | ||
| $115,500 | $120,500 | $160 | ||
| $120,500 | $125,500 | $200 | ||
| $125,500 | $130,500 | $240 | ||
| $130,500 | $135,500 | $280 | ||
| $135,500 | $140,500 | $320 | ||
| $140,500 | $145,500 | $360 | ||
| $145,500 | $400 | |||
| Married, Filing Separately | $0 | $50,250 | $0 | |
| $50,250 | $52,750 | $20 | ||
| $52,750 | $55,250 | $40 | ||
| $55,250 | $57,750 | $60 | ||
| $57,750 | $60,250 | $80 | ||
| $60,250 | $62,750 | $100 | ||
| $62,750 | $65,250 | $120 | ||
| $65,250 | $67,750 | $140 | ||
| $67,750 | $70,250 | $160 | ||
| $70,250 | $72,750 | $180 | ||
| $72,750 | $200 | |||
| Head of Household | $0 | $78,500 | $0 | |
| $78,500 | $82,500 | $32 | ||
| $82,500 | $86,500 | $64 | ||
| $86,500 | $90,500 | $96 | ||
| $90,500 | $94,500 | $128 | ||
| $94,500 | $98,500 | $160 | ||
| $98,500 | $102,500 | $192 | ||
| $102,500 | $106,500 | $224 | ||
| $106,500 | $110,500 | $256 | ||
| $110,500 | $114,500 | $288 | ||
| $114,500 | $320 | |||
Tax recapture
Connecticut recapture tax from high income earners. If your state Adjusted Gross Income is over a certain amount (vary depening on filing status), there is additional tax liability.
| Tax year | Filing status | Connecticut Adjusted Gross Income | Additional tax liability | |
|---|---|---|---|---|
| More than | Less than or equal to | |||
| 2024 2023 2022 2021 2020 |
Single or Married Filing Separately | $0 | $200,000 | $0 |
| $200,000 | $205,000 | $90 | ||
| $205,000 | $210,000 | $180 | ||
| $210,000 | $215,000 | $270 | ||
| $215,000 | $220,000 | $360 | ||
| $220,000 | $225,000 | $450 | ||
| $225,000 | $230,000 | $540 | ||
| $230,000 | $235,000 | $630 | ||
| $235,000 | $240,000 | $720 | ||
| $240,000 | $245,000 | $810 | ||
| $245,000 | $250,000 | $900 | ||
| $250,000 | $255,000 | $990 | ||
| $255,000 | $260,000 | $1,080 | ||
| $260,000 | $265,000 | $1,170 | ||
| $265,000 | $270,000 | $1,260 | ||
| $270,000 | $275,000 | $1,350 | ||
| $275,000 | $280,000 | $1,440 | ||
| $280,000 | $285,000 | $1,530 | ||
| $285,000 | $290,000 | $1,620 | ||
| $290,000 | $295,000 | $1,710 | ||
| $295,000 | $300,000 | $1,800 | ||
| $300,000 | $305,000 | $1,890 | ||
| $305,000 | $310,000 | $1,980 | ||
| $310,000 | $315,000 | $2,070 | ||
| $315,000 | $320,000 | $2,160 | ||
| $320,000 | $325,000 | $2,250 | ||
| $325,000 | $330,000 | $2,340 | ||
| $330,000 | $335,000 | $2,430 | ||
| $335,000 | $340,000 | $2,520 | ||
| $340,000 | $345,000 | $2,610 | ||
| $345,000 | $500,000 | $2,700 | ||
| $500,000 | $505,000 | $2,750 | ||
| $505,000 | $510,000 | $2,800 | ||
| $510,000 | $515,000 | $2,850 | ||
| $515,000 | $520,000 | $2,900 | ||
| $520,000 | $525,000 | $2,950 | ||
| $525,000 | $530,000 | $3,000 | ||
| $530,000 | $535,000 | $3,050 | ||
| $535,000 | $540,000 | $3,100 | ||
| $540,000 | $3,150 | |||
| Married, Filing Jointly or Widow(er) | $0 | $400,000 | $0 | |
| $400,000 | $410,000 | $180 | ||
| $410,000 | $420,000 | $360 | ||
| $420,000 | $430,000 | $540 | ||
| $430,000 | $440,000 | $720 | ||
| $440,000 | $450,000 | $900 | ||
| $450,000 | $460,000 | $1,080 | ||
| $460,000 | $470,000 | $1,260 | ||
| $470,000 | $480,000 | $1,440 | ||
| $480,000 | $490,000 | $1,620 | ||
| $490,000 | $500,000 | $1,800 | ||
| $500,000 | $510,000 | $1,980 | ||
| $510,000 | $520,000 | $2,160 | ||
| $520,000 | $530,000 | $2,340 | ||
| $530,000 | $540,000 | $2,520 | ||
| $540,000 | $550,000 | $2,700 | ||
| $550,000 | $560,000 | $2,880 | ||
| $560,000 | $570,000 | $3,060 | ||
| $570,000 | $580,000 | $3,240 | ||
| $580,000 | $590,000 | $3,420 | ||
| $590,000 | $600,000 | $3,600 | ||
| $600,000 | $610,000 | $3,780 | ||
| $610,000 | $620,000 | $3,960 | ||
| $620,000 | $630,000 | $4,140 | ||
| $630,000 | $640,000 | $4,320 | ||
| $640,000 | $650,000 | $4,500 | ||
| $650,000 | $660,000 | $4,680 | ||
| $660,000 | $670,000 | $4,860 | ||
| $670,000 | $680,000 | $5,040 | ||
| $680,000 | $690,000 | $5,220 | ||
| $690,000 | $1,000,000 | $5,400 | ||
| $1,000,000 | $1,010,000 | $5,500 | ||
| $1,010,000 | $1,020,000 | $5,600 | ||
| $1,020,000 | $1,030,000 | $5,700 | ||
| $1,030,000 | $1,040,000 | $5,800 | ||
| $1,040,000 | $1,050,000 | $5,900 | ||
| $1,050,000 | $1,060,000 | $6,000 | ||
| $1,060,000 | $1,070,000 | $6,100 | ||
| $1,070,000 | $1,080,000 | $6,200 | ||
| $1,080,000 | $6,300 | |||
| Head of Household | $0 | $320,000 | $0 | |
| $320,000 | $328,000 | $140 | ||
| $328,000 | $336,000 | $280 | ||
| $336,000 | $344,000 | $420 | ||
| $344,000 | $352,000 | $560 | ||
| $352,000 | $360,000 | $700 | ||
| $360,000 | $368,000 | $840 | ||
| $368,000 | $376,000 | $980 | ||
| $376,000 | $384,000 | $1,120 | ||
| $384,000 | $392,000 | $1,260 | ||
| $392,000 | $400,000 | $1,400 | ||
| $400,000 | $408,000 | $1,540 | ||
| $408,000 | $416,000 | $1,680 | ||
| $416,000 | $424,000 | $1,820 | ||
| $424,000 | $432,000 | $1,960 | ||
| $432,000 | $440,000 | $2,100 | ||
| $440,000 | $448,000 | $2,240 | ||
| $448,000 | $456,000 | $2,380 | ||
| $456,000 | $464,000 | $2,520 | ||
| $464,000 | $472,000 | $2,660 | ||
| $472,000 | $480,000 | $2,800 | ||
| $480,000 | $488,000 | $2,940 | ||
| $488,000 | $496,000 | $3,080 | ||
| $496,000 | $504,000 | $3,220 | ||
| $504,000 | $512,000 | $3,360 | ||
| $512,000 | $520,000 | $3,500 | ||
| $520,000 | $528,000 | $3,640 | ||
| $528,000 | $536,000 | $3,780 | ||
| $536,000 | $544,000 | $3,920 | ||
| $544,000 | $552,000 | $4,060 | ||
| $552,000 | $800,000 | $4,200 | ||
| $800,000 | $808,000 | $4,280 | ||
| $808,000 | $816,000 | $4,360 | ||
| $816,000 | $824,000 | $4,440 | ||
| $824,000 | $832,000 | $4,520 | ||
| $832,000 | $840,000 | $4,600 | ||
| $840,000 | $848,000 | $4,680 | ||
| $848,000 | $856,000 | $4,760 | ||
| $856,000 | $864,000 | $4,840 | ||
| $864,000 | $4,920 | |||
State exemptions
There is state-level exemptions for all type of filers and dependents. Refer to Tax Foundation for more details.
| Tax year | Filing status | Adjusted gross income | Personal exemption amount |
|---|---|---|---|
| 2024 2023 2022 2021 2020 |
Single | $0 – $30,000 | $15,000 |
| $30,001 – $31,000 | $14,000 | ||
| $31,001 – $32,000 | $13,000 | ||
| $32,001 – $33,000 | $12,000 | ||
| $33,001 – $34,000 | $11,000 | ||
| $34,001 – $35,000 | $10,000 | ||
| $35,001 – $36,000 | $9,000 | ||
| $36,001 – $37,000 | $8,000 | ||
| $37,001 – $38,000 | $7,000 | ||
| $38,001 – $39,000 | $6,000 | ||
| $39,001 – $40,000 | $5,000 | ||
| $40,001 – $41,000 | $4,000 | ||
| $41,001 – $42,000 | $3,000 | ||
| $42,001 – $43,000 | $2,000 | ||
| $43,001 – $44,000 | $1,000 | ||
| $44,001+ | $0 | ||
| Married, Filing Jointly or Widow(er) | $0 – $48,000 | $24,000 | |
| $48,001 – $49,000 | $23,000 | ||
| $49,001 – $50,000 | $22,000 | ||
| $50,001 – $51,000 | $21,000 | ||
| $51,001 – $52,000 | $20,000 | ||
| $52,001 – $53,000 | $19,000 | ||
| $53,001 – $54,000 | $18,000 | ||
| $54,001 – $55,000 | $17,000 | ||
| $55,001 – $56,000 | $16,000 | ||
| $56,001 – $57,000 | $15,000 | ||
| $57,001 – $58,000 | $14,000 | ||
| $58,001 – $59,000 | $13,000 | ||
| $59,001 – $60,000 | $12,000 | ||
| $60,001 – $61,000 | $11,000 | ||
| $61,001 – $62,000 | $10,000 | ||
| $62,001 – $63,000 | $9,000 | ||
| $63,001 – $64,000 | $8,000 | ||
| $64,001 – $65,000 | $7,000 | ||
| $65,001 – $66,000 | $6,000 | ||
| $66,001 – $67,000 | $5,000 | ||
| $67,001 – $68,000 | $4,000 | ||
| $68,001 – $69,000 | $3,000 | ||
| $69,001 – $70,000 | $2,000 | ||
| $70,001 – $71,000 | $1,000 | ||
| $71,001+ | $0 | ||
| Married, Filing Separately | $0 – $24,000 | $12,000 | |
| $24,001 – $25,000 | $11,000 | ||
| $25,001 – $26,000 | $10,000 | ||
| $26,001 – $27,000 | $9,000 | ||
| $27,001 – $28,000 | $8,000 | ||
| $28,001 – $29,000 | $7,000 | ||
| $29,001 – $30,000 | $6,000 | ||
| $30,001 – $31,000 | $5,000 | ||
| $31,001 – $32,000 | $4,000 | ||
| $32,001 – $33,000 | $3,000 | ||
| $33,001 – $34,000 | $2,000 | ||
| $34,001 – $35,000 | $1,000 | ||
| $35,001+ | $0 | ||
| Head of Household | $0 -$38,000 | $19,000 | |
| $38,001 – $39,000 | $18,000 | ||
| $39,001 – $40,000 | $17,000 | ||
| $40,001 – $41,000 | $16,000 | ||
| $41,001 – $42,000 | $15,000 | ||
| $42,001 – $43,000 | $14,000 | ||
| $43,001 – $44,000 | $13,000 | ||
| $44,001 – $45,000 | $12,000 | ||
| $45,001 – $46,000 | $11,000 | ||
| $46,001 – $47,000 | $10,000 | ||
| $47,001 – $48,000 | $9,000 | ||
| $48,001 – $49,000 | $8,000 | ||
| $49,001 – $50,000 | $7,000 | ||
| $50,001 – $51,000 | $6,000 | ||
| $51,001 – $52,000 | $5,000 | ||
| $52,001 – $53,000 | $4,000 | ||
| $53,001 – $54,000 | $3,000 | ||
| $54,001 – $55,000 | $2,000 | ||
| $55,001 – $56,000 | $1,000 | ||
| $56,001+ | $0 |
FAQs
How to calculate income tax in Connecticut?
Follow the steps below to calculate your total income tax in Connecticut:
- Work out your total federal income tax
- Calculate your total Connecticut state income tax
- Sum up all the taxes
How much income tax do I pay in Connecticut?
In 2024, Connecticut has a progressive state income tax system with rates ranging from 2% to 6.99%. There is also a payroll tax of 0.5% for Paid Family and Medical Leave.