How to Use This Calculator
Enter your income, filing status, and any deductions. The calculator computes your Delaware state income tax alongside your federal tax, showing exactly how much goes to each and what you take home.
The most useful thing to try? Compare different income levels to see how Delaware's brackets affect your tax bill, then look at how combined federal + state taxes shape your total take-home pay.
Here's what each field means:
Annual Income is your total earnings before any taxes. Include wages, freelance income, investment income, and any other sources.
Filing Status determines which set of tax brackets and deductions apply. Delaware uses filing statuses similar to the federal system — single, married filing jointly, married filing separately, and head of household.
Delaware Income Tax: What You Need to Know
Delaware uses a progressive income tax system with rates ranging from 2.2% to 6.6%. Like the federal system, this means your income is taxed in layers — each bracket only applies to the income within that range, not your entire income.
Delaware Tax Brackets (Single Filers)
| Taxable Income | Tax Rate |
|---|---|
| $2,000 - $5,000 | 2.2% |
| $5,000 - $10,000 | 3.9% |
| $10,000 - $20,000 | 4.8% |
| $20,000 - $25,000 | 5.2% |
| $25,000 - $60,000 | 5.55% |
| $60,000+ | 6.6% |
A Real Example
Let's say you're a single filer earning $70,000 in Delaware. After applying the standard deduction of $3,250, your income flows through each bracket:
Your approximate Delaware state income tax would be around $3,444, for an effective state tax rate of about 4.9%.
Remember, this is just the state portion. You'll also owe federal income tax and FICA taxes on top of this.
Deductions and Exemptions
Standard Deduction: Delaware offers a standard deduction of $3,250 for single filers and $6,500 for married couples filing jointly.
Standard deduction, personal exemptions ($110 per person), charitable contributions, and medical expenses. Delaware also offers a credit for taxes paid to other states.
Local Taxes
The city of Wilmington levies a local earned income tax of 1.25%.
What's Unique About Delaware
Delaware is known as a tax-friendly state for several reasons. There's no sales tax, which saves residents money on everyday purchases. The income tax rates are moderate, topping out at 6.6% on income above $60,000. Delaware also exempts the first $2,000 of income from taxation entirely. Social Security benefits are not taxed, and residents 60+ can exclude up to $12,500 in pension and retirement income.
Recent Changes
Delaware has kept its rate structure relatively stable. The state has been expanding credits and deductions for lower-income residents.
How to Use This Calculator Strategically
Model a raise or job change. See how additional income moves through Delaware's brackets and affects your effective tax rate.
Compare filing statuses. If you're married, run the numbers both jointly and separately. The better option depends on your specific income situation.
Plan your deductions. Test how maximizing retirement contributions or other deductions affects your Delaware tax bill.
Evaluate a move. Compare Delaware's rates to other states you're considering. The difference in take-home pay might surprise you.
References
- Delaware Division of Revenue. (2025). Personal Income Tax.
This calculator is for educational purposes only and does not constitute tax or financial advice. Tax rates, brackets, and rules change regularly. Consult a qualified tax professional for guidance specific to your situation.