Delaware Income Tax 2025
Per IRS inflation adjustments, Delaware (DE) has 7 income tax brackets ranging from 0.0% to 6.6% for 2025.
Delaware runs a mid-rate income tax structure. Top marginal brackets sit in the middle of the U.S. distribution; effective rates depend heavily on the household income level and on whether the state uses graduated brackets or a flat rate.
For households comparing Delaware against other states, the full picture combines income tax (modeled by the calculator) with state and local sales tax, property tax, and any state-specific tax preferences. The compare tool on this site runs a side-by-side total-burden estimate; the per-state pages cover the income-tax piece in detail.
2025 Tax Brackets, Single Filer
| Tax Rate | Taxable Income Range |
|---|---|
| 0.0% | $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 |
| 5.5% | $25,000, $60,000 |
| 6.6% | $60,000+ |
Standard Deduction
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Open Income Tax CalculatorFrequently Asked Questions
Delaware (DE) has 7 income tax brackets ranging from 0.0% to 6.6% for tax year 2025.
The Delaware standard deduction for 2025 is $3,250 for single filers and $6,500 for married filing jointly.
Delaware is one of 41 states that levy a state income tax. 9 states have no state income tax at all. Use our calculators to compare your tax burden across states.
State tax treatment of retirement income varies. Check Delaware's specific rules for Social Security, pensions, and 401(k) withdrawals. Consult a tax professional for personalized guidance.
Tax brackets and rates for 2025. Not tax advice, consult a qualified tax professional for your specific situation.