Tax Bracket Calculator for Delaware (DE) — Free Calculator

Delaware Tax Brackets (2026)

Delaware uses a graduated income tax system with a top marginal rate of 6.6%.

Delaware Bracket Structure

0% on first $2,000; 2.2% on $2,001–$5,000; 3.9% on $5,001–$10,000; 4.8% on $10,001–$20,000; 5.2% on $20,001–$25,000; 5.55% on $25,001–$60,000; 6.6% above $60,000

Delaware has no sales tax, which offsets its moderate income tax burden. The state is a popular corporate domicile but individual income tax rates are unremarkable at up to 6.6%.

Federal Tax Brackets Still Apply to Delaware Residents

Regardless of Delaware's state tax rules, all residents pay federal income tax. Federal brackets for 2024 range from 10% (on income up to $11,600 for single filers) to 37% (on income over $609,350). Your effective federal rate is typically well below the top marginal rate due to the graduated bracket structure.

Effective vs. Marginal Rate in Delaware

Your marginal rate is the rate on your last dollar of income. Your effective rate is your total tax divided by total income. For Delaware residents the marginal rate can reach 6.6% but most filers pay a lower effective rate. The median household income in Delaware is $72,724.

Data: Tax Foundation (2024), IRS Statistics of Income, US Census Bureau ACS 2023. Updated 2024–2025. Figures reflect state averages — consult a licensed CPA for personalized tax advice.

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Frequently Asked Questions

What tax brackets apply to Delaware residents?

Delaware has a graduated income tax system. 0% on first $2,000; 2.2% on $2,001–$5,000; 3.9% on $5,001–$10,000; 4.8% on $10,001–$20,000; 5.2% on $20,001–$25,000; 5.55% on $25,001–$60,000; 6.6% above $60,000. Federal brackets also apply on top of the state tax.

What is the difference between marginal and effective tax rate in Delaware?

Your marginal rate is the rate on your highest dollar of income. Your effective rate is your total tax burden divided by total income. In Delaware, even if the top marginal rate is 6.6%, most residents pay a lower effective rate because lower income portions are taxed at lower brackets.

Does Delaware have different tax brackets for married filers?

Yes, Delaware typically has different bracket thresholds for single vs. married filing jointly filers. Married joint filers often have brackets approximately twice as wide, reducing the marriage penalty. Check the Delaware Department of Revenue for current bracket tables.

How does this tax bracket calculator work for Delaware?

Enter your income and filing status. The calculator applies both federal and Delaware state tax brackets to show your marginal rate, effective rate, and total estimated tax. Delaware's graduated rate of up to 6.6% is applied to your state taxable income.