Delaware Income Tax 2026: Brackets, Rates & Free Calculator
Delaware’s income tax has a feature few states share: the exact same brackets apply no matter how you file. Single, married filing jointly, head of household — the rates and thresholds are identical. That simplicity makes Delaware taxes unusually easy to estimate by hand, but there are still details worth knowing: a modest standard deduction, a $110-per-person personal credit, and seven graduated brackets.
This guide covers Delaware’s 2026 income tax brackets and rates, explains the standard deduction and personal credits, works through a complete example, and shows you how to get an instant estimate with our free Delaware income tax calculator.
Delaware 2026 income tax brackets
Delaware taxes income at graduated, marginal rates — each rate applies only to the income inside its bracket. These brackets are the same for every filing status in 2026:
| Taxable income | Tax rate |
|---|---|
| Up to $2,000 | 0% |
| $2,001 – $5,000 | 2.2% |
| $5,001 – $10,000 | 3.9% |
| $10,001 – $20,000 | 4.8% |
| $20,001 – $25,000 | 5.2% |
| $25,001 – $60,000 | 5.55% |
| Over $60,000 | 6.6% |
Two things stand out. First, the 0% bracket means the first $2,000 of taxable income is always tax-free — a small built-in break for everyone. Second, the top rate of 6.6% kicks in at just $60,000 of taxable income, which is a lower threshold than in many states. Because the brackets do not change with filing status, your tax is driven almost entirely by how much taxable income you have after deductions.
Standard deduction and personal credits
Before the brackets touch your income, Delaware lets you reduce it with a standard deduction:
| Filing status | Standard deduction |
|---|---|
| Single | $3,250 |
| Married filing jointly | $6,500 |
You may itemize deductions instead if your itemized total exceeds the standard amount. For most filers with straightforward finances, the standard deduction wins.
After calculating the tax from the brackets, Delaware applies a $110 nonrefundable personal credit for the taxpayer, for a spouse on a joint return, and for each dependent claimed. “Nonrefundable” means the credit can reduce your tax to zero, but never below zero — you will not get a refund from it. A single filer with no dependents gets one $110 credit; a married couple with two children gets four, worth $440 off their bill.
Worked example: $50,000 income for a single filer
Here is the full calculation for a single filer earning $50,000 in 2026, taking the standard deduction and claiming one personal credit:
- Subtract the standard deduction. $50,000 − $3,250 = $46,750 of taxable income.
- Apply the marginal brackets.
- 0% on the first $2,000 = $0
- 2.2% on the next $3,000 ($2,001–$5,000) = $66
- 3.9% on the next $5,000 ($5,001–$10,000) = $195
- 4.8% on the next $10,000 ($10,001–$20,000) = $480
- 5.2% on the next $5,000 ($20,001–$25,000) = $260
- 5.55% on the remaining $21,750 ($25,001–$46,750) = $1,207.13
- Subtotal: $2,208.13. Subtract the $110 personal credit = $2,098.13, about $2,098.
That is an effective rate of roughly 4.2% on the full $50,000 — well below the 5.55% marginal rate that applied to the last dollars earned. The standard deduction and the personal credit together shaved over $400 off the bill.
How to estimate your Delaware tax in 4 steps
- Start with your Delaware income. This is generally your federal adjusted gross income, adjusted for Delaware-specific additions and subtractions.
- Subtract deductions. Take the $3,250 single or $6,500 joint standard deduction — or your itemized total if it is larger.
- Run the result through the brackets. Apply each marginal rate only to the income inside that bracket, remembering the first $2,000 is taxed at 0%.
- Subtract your personal credits. Take $110 off the result for yourself, your spouse, and each dependent. Or skip the manual work entirely with our free Delaware income tax calculator.
Tips to lower your Delaware tax bill
- Contribute to pre-tax retirement accounts. 401(k), 403(b), and traditional IRA contributions lower the income Delaware starts from, dollar for dollar.
- Check whether itemizing beats the standard deduction. Mortgage interest, charitable gifts, and state and local taxes (subject to the federal cap) can push itemized deductions past $3,250/$6,500.
- Claim every dependent credit. Each dependent is worth a $110 credit straight off your tax bill — make sure nobody is missed.
- Use an HSA with a high-deductible health plan. Contributions reduce your taxable income, and Delaware follows the federal exclusion.
- Consider retirement income exclusions. Delaware offers exclusions for certain pension and retirement income for eligible filers, which can meaningfully lower taxable income in retirement.
Frequently asked questions
What are the Delaware income tax brackets for 2026?
Delaware’s 2026 brackets are the same for all filing statuses: 0% up to $2,000, 2.2% to $5,000, 3.9% to $10,000, 4.8% to $20,000, 5.2% to $25,000, 5.55% to $60,000, and 6.6% above $60,000.
What is Delaware’s standard deduction for 2026?
Delaware’s standard deduction is $3,250 for single filers and $6,500 for married couples filing jointly. You can itemize instead if your itemized deductions are larger than the standard amount.
What is the $110 personal credit in Delaware?
Delaware gives a $110 nonrefundable personal credit for the taxpayer, a spouse on a joint return, and each dependent. It reduces your tax bill dollar for dollar, but cannot take your tax below zero.
How can I estimate my Delaware income tax?
Subtract your standard or itemized deduction from your income, apply the graduated brackets to the result, then subtract $110 per exemption — or get an instant estimate with our free Delaware income tax calculator.
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