Credit card processing and merchant services in Wilmington, DE

Nobody pays sales tax at a Wilmington register, because Delaware doesn't have one. The tax bill lands on the business instead, and in Wilmington it comes in layers. Delaware's gross receipts tax rate for general retailers is 0.7468%, filed monthly, with a $100,000 monthly exclusion. Say your shop takes in $150,000 in a month: the tax applies to the $50,000 above the exclusion, which works out to $373.40. Other business activities have their own rates and exclusions, so look yours up on the Division of Revenue's list.

City Hall has requirements of its own. A business operating inside city limits needs a City of Wilmington business license on top of its Delaware license, and the city's net profits tax and wage tax are both 1.25%. None of that shows up on your checkout screen, but you'll want it in your budget before you sign a lease.

Delaware's cash law, on the other hand, shapes checkout directly. Refusing cash for consumer goods or services is an unlawful practice for a retail store, and so is charging cash buyers a higher price. Charging them less is expressly allowed, which makes a posted cash discount a clean way to offset card costs. A credit card surcharge is legal too, within Visa's 3% and Mastercard's 4% caps and never on debit. Our guide to dual pricing vs surcharging compares the two, and the Delaware page has the statewide sources.

The Census Bureau puts Wilmington at 73,512 residents as of July 1, 2025, and the 2022 Economic Census counted $1.95 billion in retail sales in the city. Whatever you sell, interchange-plus pricing shows what each card type really costs you. A free statement review will tell you whether a fee is worth adding at all.