Delaware Income Tax Guide 2026 | No Sales Tax, Rates & Calculator

Delaware occupies a unique position among American states: it imposes no sales tax whatsoever, yet funds its government through a moderately progressive income tax system with 7 brackets reaching up to 6.6%. For residents, the trade-off often works in their favour — particularly retirees, whose Social Security income is fully exempt and who can exclude up to $12,500 in pension income from state tax.

For 2026, a Delaware single filer earning $100,000 pays approximately $5,259 in state income tax after the $3,250 standard deduction and $110 personal exemption credit — an effective rate of 5.26%. That figure is higher than many Southern states but comes alongside zero sales tax, low property taxes (~0.56% effective), and a nationally renowned retirement-friendly tax profile for those with pension and Social Security income.

Delaware is also famous as the incorporation home of approximately 66% of Fortune 500 companies — a corporate law and franchise tax story distinct from personal income taxation. For individual residents, the relevant facts are the 7-bracket structure, the generous retirement exemptions, and the complete absence of a state sales tax.

Delaware Income Tax Brackets 2026 — Full 7-Bracket Structure

Delaware uses a 7-bracket progressive income tax system for 2026. The first $2,000 of income is taxed at 0% — effectively a zero-rate floor before any liability begins. The top rate of 6.6% kicks in on income above $60,000. All figures apply to Delaware taxable income after the standard deduction.

Worked example — single filer at $100,000 gross income:

1. Subtract standard deduction: $100,000 − $3,250 = $96,750 Delaware taxable income
2. Apply brackets: $0 (on first $2,000) + $66 (2.2% × $3,000) + $195 (3.9% × $5,000) + $480 (4.8% × $10,000) + $260 (5.2% × $5,000) + $1,942.50 (5.55% × $35,000) + $2,425.50 (6.6% × $36,750) = $5,369 bracket tax
3. Subtract personal exemption credit: $5,369 − $110 = $5,259 total Delaware income tax
4. Effective rate: $5,259 ÷ $100,000 = 5.26%

For comparison at other income levels:

No Sales Tax — Delaware's Most Famous Tax Advantage

Delaware is one of only five US states with no state sales tax — the others being Montana, New Hampshire, Oregon, and Alaska (which has no state sales tax but allows local sales taxes). Delaware has neither a state sales tax nor any local sales tax, making every purchase in Delaware completely free of retail sales tax.

This creates an outsized real-world benefit that income tax rates alone do not capture:

• Major purchases: A car costing $40,000 saves $2,400–$3,200 in sales tax compared to buying in Maryland (6%) or New Jersey (6.625%)
• Consumer electronics and appliances: A $2,000 laptop purchase saves $120–$145 versus buying in a bordering state
• Clothing and everyday goods: Steady savings on all retail spending, every year

Delaware's Christiana Mall (near Wilmington) is one of the highest-grossing malls per square foot in the United States, driven largely by tax-free shopping that draws visitors from Pennsylvania, Maryland, and New Jersey. The Rehoboth Beach area functions similarly as a shopping destination for East Coast vacationers.

For a household spending $50,000/year on taxable goods and services, living in Delaware rather than New Jersey (6.625%) saves approximately $3,313/year in sales taxes — nearly enough to offset Delaware's higher income tax burden at middle income levels.

Social Security and Pension Exemptions — Retirement Tax Profile

Delaware's retirement income exemptions are among the most generous in the Mid-Atlantic region:

• Social Security: 100% exempt from Delaware state income tax — no means-testing, no income phase-out, fully excluded for all filers regardless of income level
• Pension exclusion (age 60 and older): Up to $12,500 per year of pension, annuity, and retirement income may be excluded from Delaware taxable income
• Pension exclusion (under age 60): Up to $2,000 per year pension exclusion — a smaller but meaningful benefit for early retirees or those with partial pensions
• Types of retirement income covered: The exclusion applies broadly to private pensions, government pensions (state, federal, military), IRA distributions, and 401(k)/403(b) withdrawals

Retirement tax example — age 65, single filer:

• Social Security: $24,000 — fully exempt, $0 taxable
• Pension/IRA withdrawals: $36,000 — first $12,500 exempt, $23,500 taxable
• Total Delaware taxable income: $23,500 − $3,250 standard deduction = $20,250
• Tax on $20,250: approximately $814 before the $110 credit = $704 total Delaware tax
• Effective rate on $60,000 total retirement income: approximately 1.2%

For a retiree with $60,000 in combined Social Security and pension income, Delaware's effective state income tax rate falls to around 1.2% — far lower than the headline 6.6% top bracket suggests. This explains why Delaware consistently ranks as one of the top 10 most tax-friendly states for retirees in national surveys.

Wilmington City Wage Tax and Local Taxes

Delaware is unusual in that its largest city — Wilmington — levies a separate city wage tax on top of state income tax. This is important for anyone who lives or works in Wilmington:

• Wilmington residents: 1.25% wage tax on all earned income (wages, salaries, net self-employment income)
• Non-residents working in Wilmington: 1.25% wage tax on income earned within Wilmington city limits
• Credit for Wilmington tax: Delaware state income tax includes a credit for Wilmington city wage taxes paid, partially offsetting the combined burden

For a Wilmington resident earning $100,000 in wages, the city wage tax adds approximately $1,250/year on top of state income tax. The state credit reduces but does not eliminate this additional burden — the combined effective rate for Wilmington residents is typically 1.0–1.1 percentage points higher than for residents of the rest of Delaware.

Outside of Wilmington, most Delaware cities and towns do not levy local income taxes. Newark (home to the University of Delaware) and Dover (the state capital) have no local wage tax. This means the vast majority of Delaware residents face only state-level income taxation plus the Wilmington city tax if applicable.

Delaware vs Maryland, Pennsylvania, and New Jersey — Neighbor Comparison

Delaware sits at the intersection of three high-tax Mid-Atlantic states. How does it compare?

Key takeaways from this comparison:

• Delaware vs Pennsylvania: Pennsylvania's flat 3.07% rate produces a lower income tax bill at $100,000, but Pennsylvania has a 6% sales tax that Delaware lacks entirely. A Pennsylvania household spending $40,000/year on taxable goods pays ~$2,400 in sales tax that a Delaware resident avoids.
• Delaware vs Maryland: Maryland's combined state-plus-county income tax typically exceeds Delaware's at most income levels, and Maryland adds a 6% sales tax. Delaware clearly wins on overall tax burden for most income profiles.
• Delaware vs New Jersey: New Jersey has among the highest property taxes in the US (~2.47% effective), a 6.625% sales tax, and a complex graduated income tax. Delaware's 0.56% property tax and zero sales tax make the total burden comparison highly favourable for Delaware at most income levels.

Delaware's sweet spot is middle-income and retirement households who benefit most from the no-sales-tax advantage and Social Security/pension exemptions. Very high earners with substantial wage income ($250,000+) may find Pennsylvania's 3.07% flat rate more attractive on income tax alone.

Delaware Property Tax — Low Rates in the Mid-Atlantic

Delaware's effective property tax rate of approximately 0.56% is the lowest in the Mid-Atlantic region and well below the US national average of ~1.1%. On a $400,000 home — typical for many Delaware communities — the annual property tax bill is approximately $2,240, compared to $4,360 in Maryland, $5,440 in Pennsylvania, or $9,880 in New Jersey for a similar home value.

Delaware property taxes are assessed at the county level, with three counties:

• New Castle County (Wilmington area, most populous): rates are somewhat higher than other counties but still below national average
• Kent County (Dover area, central Delaware): lower rates, mix of suburban and rural
• Sussex County (Rehoboth Beach, beach communities): competitive rates; popular with retirees and vacation homeowners

Delaware also does not levy a state-level estate or inheritance tax (repealed 2018), which further benefits retirees and families with intergenerational wealth transfer concerns. Combined with low property taxes and strong pension/Social Security exemptions, this makes Delaware particularly appealing for retirees settling in beach communities like Lewes, Rehoboth Beach, and Bethany Beach.

No Estate or Inheritance Tax — What Changed in 2018

Delaware repealed its estate tax effective January 1, 2018. Prior to repeal, Delaware had a state estate tax with a $5.49 million exemption (2017) and rates up to 16%. The repeal was part of a broader package of tax reforms intended to improve Delaware's competitiveness for wealthy retirees and high-net-worth residents.

For 2026, Delaware has:

• No state estate tax
• No state inheritance tax
• Federal estate tax rules still apply (federal exemption is $13.61 million per individual for 2024, adjusted annually)

This is a meaningful benefit for affluent retirees and families planning estates. States like Maryland still levy a state estate tax (exemption: $5 million, rates up to 16%), meaning a Maryland resident with an estate of $7 million could face up to $320,000 in state estate tax that a Delaware resident would avoid entirely. New Jersey also retains an inheritance tax (though it repealed its estate tax in 2018 as well).

For high-net-worth individuals evaluating Mid-Atlantic retirement destinations, Delaware's combination of no estate tax, no sales tax, low property tax, and strong retirement income exemptions creates a compelling overall package.

Delaware as a Retirement Destination — The Full Tax Picture

Delaware frequently appears on national lists of top states for retirees, and the tax profile explains why. Consider the full picture for a retired couple (both age 65+) with $80,000 in combined income:

• Social Security ($40,000): Fully exempt — $0 Delaware tax on this income
• Pension/IRA withdrawals ($40,000): Each spouse can exclude up to $12,500; couple excludes $25,000, leaving $15,000 taxable
• Standard deduction (MFJ): $6,500 deduction from the $15,000 = $8,500 Delaware taxable income
• Tax on $8,500: approximately $268 before credits
• Personal exemption credits: $220 (2 exemptions × $110) — reduces to approximately $48 state tax
• Sales tax savings vs Maryland: ~$3,000/year (on $50,000 in taxable spending at 6%)
• Property tax savings vs New Jersey: ~$6,000+/year on a $400,000 home

The result: a retired Delaware couple with $80,000 in income pays essentially negligible state income tax ($48 in this example) while saving thousands annually on sales taxes versus neighboring states. This combination — not any single rate — is what drives Delaware's strong retirement reputation.

Sussex County in particular has seen significant growth as a retirement destination, with Lewes and Rehoboth Beach drawing retirees from the broader Mid-Atlantic and Northeast corridor who want coastal living without coastal tax burdens.