Understanding New Castle County Tax Rates

Delaware is unique among U.S. states because it does **not** impose a statewide sales tax. Consequently, the base sales‑tax rate for the entire state is 0 %. In most counties—including New Castle County—there are also no additional county or municipal sales‑tax surcharges. This means that, for typical retail transactions, the combined sales‑tax rate is effectively 0 %.

Although the sales‑tax burden is zero, Delaware does collect a **state income tax** on individuals and corporations. The income‑tax rates are progressive for individuals, ranging from 0 % to 6.6 % on taxable income, and a flat 8.7 % rate for most corporations. Residents and businesses should therefore focus on income‑tax obligations rather than sales‑tax compliance when operating in New Castle County.

What’s Taxable in New Castle County?

Because there is no sales tax, the typical categories of taxable goods and services that you might encounter in other states simply do not apply in New Castle County. However, it is still useful to know which transactions are subject to other state‑level taxes or fees:

• Motor vehicle registrations and title fees – These are charged by the Delaware Division of Motor Vehicles.
• Utility taxes – Certain telecommunications and utility services may incur a small state‑level gross receipts tax.
• Alcohol and tobacco excise taxes – These are levied on the sale of beer, wine, spirits, and tobacco products.
• Hotel occupancy tax – Lodging in New Castle County is subject to a state‑approved occupancy tax.

Common sales‑tax exemptions that exist elsewhere (e.g., groceries, prescription drugs, clothing) are automatically “exempt” in Delaware because the tax does not exist.

Recent Rate Changes

Delaware’s tax landscape can shift due to legislative action or voter‑approved measures, especially concerning income‑tax brackets, corporate tax rates, and special excise taxes. While the sales‑tax rate remains at 0 %, the following changes have occurred in the past few years:

• 2023: Incremental increase to the top individual income‑tax bracket from 6.6 % to 6.9 % for incomes above $250,000.
• 2024: Introduction of a modest surcharge on short‑term rental platforms, collected through the state’s lodging tax.
• 2025: Adjustments to the corporate franchise tax thresholds to encourage small‑business growth.

Because tax statutes are subject to amendment, always verify the latest rates and rules with the Delaware Department of Revenue before filing or making major financial decisions.

Tips for Residents & Businesses

• Maintain accurate records. Even without sales tax, you must retain documentation for income‑tax filings, franchise‑tax calculations, and any excise‑tax payments.
• Leverage the no‑sales‑tax environment. When purchasing equipment, supplies, or inventory, you can avoid the additional cost that other states impose, which can improve cash flow.
• Stay compliant with excise taxes. If you sell alcohol, tobacco, or provide lodging, register with the appropriate state agency and file regular returns.
• Use tax‑benefit programs. Delaware offers credits for research and development, job creation, and green energy investments that can offset income‑tax liabilities.
• Plan for local fees. Some municipalities within New Castle County may impose fees for permits, business licenses, or waste‑service charges—these are separate from state taxes.
• Consult a tax professional. Because the tax structure differs from most states, a CPA familiar with Delaware tax law can help you optimize deductions, credits, and filing strategies.