State Income Tax Comparison
Taxes

Connecticut vs Delaware: State Income Tax

Delaware has a lower state income tax rate than Connecticut.

Connecticut flag
Connecticut
CT • Northeast
6.99%
Top marginal state income tax rate. 0% = no state income tax.
Delaware flag
Delaware
DE • South
Winner
6.60%
Top marginal state income tax rate. 0% = no state income tax.

Visual Comparison

Connecticut 6.99%
Delaware 6.60%

Difference: 0.39 percentage points — Delaware leads.

Related Context

Tax Burden Picture

Income tax is just one layer — sales and property taxes complete the picture.

What This Means

Connecticut vs Delaware: State Income Tax in context

Delaware has a state income tax of 6.60%, compared with 6.99% in Connecticut. Top marginal state income tax rate. 0% = no state income tax.

Connecticut
6.99%
Delaware
6.60%
Difference
0.39 percentage points

People Also Ask

Connecticut vs Delaware State Income Tax — Common Questions

Q What is Connecticut's state income tax?

Connecticut's state income tax is 6.99%.

Q What is Delaware's state income tax?

Delaware's state income tax is 6.60%.

Q Which state has a lower state income tax — Connecticut or Delaware?

Delaware has a lower state income tax rate than Connecticut.

Sources: Core demographic data comes from the 2020 U.S. Census, with land area from U.S. Census Bureau TIGER files. Income, housing, affordability, and tax fields are maintained in our comparison dataset, with minimum wage data from the U.S. Department of Labor, gas prices from AAA, and electricity rates from the U.S. Energy Information Administration. Political control and election fields use 2024 presidential results together with National Conference of State Legislatures data. Gun-law labels use the Giffords scorecard, alcohol system data comes from NABCA, and marijuana status uses NCSL's state cannabis laws tracker.