Pressure Washing Business Permit Requirements in Wilmington, DE

Complete permit and license guide for starting a pressure washing business in Wilmington, New Castle County, Delaware.

Updated 2026-03-15 4 stops $150–$500 est. 1–4 weeks
Get my personalized route — $14.99

Not legal advice. Requirements may change — always verify with your local government authority before applying. This guide was compiled from public and official sources (last updated ) and has not yet been independently source-verified — confirm each requirement before acting on it.

Federal — start here

1 stop
  1. EIN (Employer Identification Number)

    Required if you have employees or operate as an LLC or corporation. Free from the IRS.

    Official government source

    FreeImmediate (online application)

State of Delaware

1 stop
  1. Delaware — No Sales Tax

    Delaware has no state or local sales tax. Instead, Delaware levies a Gross Receipts Tax on the seller of goods or provider of services, based on total receipts. Register with the Delaware Division of Revenue.

    Official government source

    Free (gross receipts tax registration)Immediate (online)

City of Wilmington / New Castle County

2 stops
  1. City of Wilmington Revenue Division — Business License

    Wilmington requires a City Business License for all businesses operating within city limits. Fees are based on business type. This license must be renewed annually and displayed at your place of business.

    Official government source

    $50–$500/year depending on business type and gross revenues1–3 weeks

  2. New Castle County / Wilmington Environmental Compliance — Stormwater Permit

    Pressure washing businesses that wash chemicals or contaminants into storm drains must comply with local stormwater regulations. In many jurisdictions, a Stormwater Discharge Permit or wastewater disposal plan is required.

    Official government source

    $50–$2001–4 weeks

Terminus

Open for business — est. $150–$500 · 1–4 weeks

Want this mapped to your exact business and structure, in filing order?

Get my personalized route — $14.99

Official Sources

Related Guides