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Connecticut Income Tax Table Connecticut Income Tax Brackets (Tax Year 2016)
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Tax Year 2016 / Filed April 2017

Connecticut - 2017 Single Tax Brackets
Tax Bracket Tax Rate
$0.00+ 3%
$10,000.00+ 5%
$50,000.00+ 5.5%
$100,000.00+ 6%
$200,000.00+ 6.5%
$250,000.00+ 6.9%
$500,000.00+ 6.99%
Connecticut - 2017 Married Filing Jointly Tax Brackets
Tax Bracket Tax Rate
$0.00+ 3%
$20,000.00+ 5%
$100,000.00+ 5.5%
$200,000.00+ 6%
$400,000.00+ 6.5%
$500,000.00+ 6.9%
$1,000,000.00+ 6.99%

This page shows Tax-Brackets.org's archived Connecticut tax brackets for tax year 2017. This means that these brackets applied to all income earned in 2016, and the tax return that uses these tax rates was due in April 2017.

Both Connecticut's tax brackets and the associated tax rates were last changed three years prior to 2017 in 2014.

The current tax year is 2018, and the Connecticut income tax brackets have not been changed since 2017.

2017 Connecticut Tax Deduction Amounts

Tax-Brackets.org also maintains an archive of important Connecticut income tax exemption amounts, including the Connecticut Standard Deduction, the Connecticut Personal Exemption, and the Connecticut Dependent Deduction. The values of these deductions for tax year 2017 are as follows:

Standard Deduction (Single) Standard Deduction (MFJ) Personal Exemption Dependant Exemption
$0.00 $0.00 $15,000.00 * $0.00 *

* Note: In Connecticut, personal / dependent exemptions are treated as income tax credits rather than tax deductions.

Connecticut Income Tax Table 2017 Sources & Citations

Disclaimer: While we do our best to keep our historical Connecticut income tax rates up to date and complete, we cannot be held liable for errors or omissions. Is info on this page missing or out-of-date? Please let us know so we can fix it!

Tax Data Sources:

  1. The Connecticut tax brackets on this page sourced from the Connecticut Department of Revenue in 2017. Please contact us if any of our Connecticut tax data is incorrect or out of date.

** This Document Provided By Tax-Brackets.org **
Source: http://www.tax-brackets.org/connecticuttaxtable/2017