Delaware Income Tax Calculator
Use this free income tax calculator customized with Delaware-specific tax rates, costs, and financial data.
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Frequently Asked Questions
What is the Delaware state income tax rate?
Delaware has a top marginal income tax rate of 6.6%. The state uses a progressive tax system with 6 brackets.
Does Delaware have a flat or progressive income tax?
Delaware uses a progressive income tax system with 6 brackets ranging from 2.2% to 6.6%.
How do I file my Delaware state income tax return?
Delaware residents must file a state income tax return with the Delaware Department of Revenue (or equivalent agency). Most taxpayers can file electronically. The deadline typically aligns with the federal tax deadline of April 15.