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Delaware Income Tax Calculator 2026 — State Tax Brackets & Rates
Estimated Delaware state income tax at common income levels, combined federal + state burden, and the full Delaware tax bracket table — 2025 rates.
Reviewed for accuracy June 2026 by Gary Sing
State tax type
Progressive
State tax at $75k
$4,499
Federal tax at $75k
$8,114
Combined eff. rate $75k
16.8%
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Delaware income tax at common income levels — 2025
Single filer, 2025 federal standard deduction ($15,000). Federal tax uses 2025 IRS brackets.
| Income | Delaware state tax | State eff. rate | Federal tax | Total tax | Total eff. rate |
|---|---|---|---|---|---|
| $50,000 | $2,849 | 5.7% | $3,962 | $6,811 | 13.6% |
| $75,000 | $4,499 | 6.0% | $8,114 | $12,613 | 16.8% |
| $100,000 | $6,149 | 6.1% | $13,614 | $19,763 | 19.8% |
Single filer. Federal tax computed on gross income minus $15,000 standard deduction using 2025 IRS brackets. State tax estimates are approximate — consult a tax professional for exact liability. Does not include FICA (Social Security + Medicare), local taxes, or deductions beyond the standard deduction.
Delaware state income tax rate 2025
Delaware has a six-bracket system with a top rate of 6.6% on income over $25,000. Delaware has no sales tax, making income tax the primary source of state revenue.
| Taxable income (single) | Rate |
|---|---|
| $0 – $2,000 | 2.2% |
| $2,000 – $5,000 | 3.9% |
| $5,000 – $10,000 | 4.8% |
| $10,000 – $20,000 | 5.2% |
| $20,000 – $25,000 | 5.55% |
| Over $25,000 | 6.6% |
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Delaware income tax — frequently asked questions
Does Delaware have a state income tax?
Yes. Delaware has a progressive income tax with rates up to 6.6%.
What is the Delaware state income tax rate for 2025?
Delaware has a progressive tax with a top rate of 6.6%. The effective rate depends on income level — at $75,000, the effective Delaware state tax rate is approximately 6.0%.
How much Delaware state income tax do I owe on $75,000?
On a $75,000 gross income (single filer, 2025), estimated Delaware state income tax is approximately $4,499 (effective rate: 6.0%). Combined with federal income tax of approximately $8,114, total tax is about $12,613 — an overall effective rate of 16.8%.
What is the combined federal and Delaware state income tax at $100,000?
At $100,000 gross income (single filer, 2025 standard deductions): federal income tax is approximately $13,614, Delaware state income tax is $6,149, for a combined total of approximately $19,763 — an overall effective rate of 19.8%.
How does Delaware's income tax compare to other states?
Delaware's top rate of 6.6% places it in the moderate range nationally. The nine states with no income tax pay $0 in state income tax; the highest-tax states (California at 13.3%, Hawaii at 11%) have the largest state income tax burdens.