Plan for Wilmington, DE

Starting a Business in Wilmington: Licenses, Registrations & Checklist

A step-by-step plan to open a business in Wilmington: what to file first, what depends on what, and which permits come before opening day. Change the business details to fit yours.

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Dates

Permits and registrations specific to Wilmington, DE

Sales tax permitDelaware business license (gross receipts tax)
City of WilmingtonHas its own business licenses, taxes or permits (listed below).
New Castle CountyNo official page confirmed either way yet.
Local licenses and permits to obtain
  • County/city business license — Wilmington, New Castle County, Delaware · County or municipality: Wilmington / New Castle County (city)
  • Obtain certificate of occupancy for premises in Wilmington · Wilmington (New Castle County) building department (city)
  • Obtain a City of Wilmington business license · City of Wilmington Finance Department, Wage and Business License Division (city)
Register with these Delaware agencies

Startup sequence and prerequisites in Wilmington

Based on your selections, this plan has 12 steps. What you file first decides what you can do next: later registrations and licenses wait on the ones below.

Do these first

  1. Maintain a registered agent in Delaware
  2. File formation documents with the Delaware Division of Corporations
  3. Obtain an Employer Identification Number (EIN)

Then, once those are done

  • Register for and file Delaware entity-level taxes — after: Obtain an Employer Identification Number (EIN)
  • Notify residents and regulators of a data breach within 60 days (Delaware) — after: Obtain an Employer Identification Number (EIN)
  • Delaware business license and gross receipts tax — after: Obtain an Employer Identification Number (EIN)
  • County/city business license — Wilmington, New Castle County, Delaware — after: Obtain an Employer Identification Number (EIN)
  • Obtain certificate of occupancy for premises in Wilmington — after: Obtain an Employer Identification Number (EIN)
  • Obtain a City of Wilmington business license — after: Obtain an Employer Identification Number (EIN)
Start planObligations (11)
Government fees

Known charges: $475.00 per year.

Total incomplete: some fees unknown

10 of 12 steps have no fee amount in our data. The figures above count only the 2 steps with a recorded fee. Check each agency's fee schedule.

File formationOct 25, 2026in 7 days
Ready to operateJan 1, 2027in 75 days
Opening dateNot setAdd a target opening date to check the plan fits
Progress0 / 12Saved in this browser

Things the formation documents depend on: a registered agent and any professional approvals.

Suggested planning date: Oct 25, 2026
Ongoing
not individually checked

File the formation documents with the state.

Suggested planning date: Nov 8, 2026
One-time
not individually checked
After: Maintain a registered agent in Delaware

Obtain the EIN (and apply for tax-exempt status, for nonprofits). Most registrations need it.

Suggested planning date: Nov 11, 2026
One-time
not individually checked
After: File formation documents with the Delaware Division of Corporations

State tax accounts, trade name, foreign qualification and publication requirements.

Suggested planning date: Nov 25, 2026
Annual
not individually checked
After: Obtain an Employer Identification Number (EIN)
Suggested planning date: Nov 25, 2026
Per event
checked Oct 16, 2026
After: Obtain an Employer Identification Number (EIN)

Licenses and permits you need before you operate: state, industry, local and professional.

Suggested planning date: Dec 25, 2026
fee $75
Annual
not individually checked
After: Obtain an Employer Identification Number (EIN)
Suggested planning date: Dec 25, 2026
Annual
not individually checked
After: Obtain an Employer Identification Number (EIN)
Suggested planning date: Dec 25, 2026
One-time
not individually checked
After: Obtain an Employer Identification Number (EIN)
Suggested planning date: Dec 25, 2026
Ongoing
checked Oct 15, 2026
After: Obtain an Employer Identification Number (EIN)

Recurring filings and payments, in the order they fall due.

Statutory deadline: Mar 1, 2027 · in 134 days
Annual
checked Oct 16, 2026
Applies because: Business operates in DE. Schedule: March 1.
Statutory deadline: Apr 15, 2027 · in 179 days
Annual
not individually checked
Applies because: Federal tax treatment is sole_prop. Schedule: April 15.
Statutory deadline: Jun 1, 2027 · in 226 days
fee $400
Annual
checked Oct 13, 2026
Applies because: llc formed in DE. Schedule: June 1.
Suggested planning dates are allowances, not agency processing times. Statutory deadlines come from the rules and are labeled as such.

Common questions about Wilmington

The state licenses your industry through its own regulator, and the city and county add local permits. These are the authorities and local items on record for Wilmington:

  • Contractor licensing: Delaware Division of Revenue (contractor business license)
  • Real estate licensing: Delaware Real Estate Commission
  • Alcohol licensing: Delaware Office of the Alcoholic Beverage Control Commissioner
  • Child care licensing: Delaware Office of Child Care Licensing
  • Health facility licensing: Delaware Division of Health Care Quality
  • County/city business license — Wilmington, New Castle County, Delaware (County or municipality: Wilmington / New Castle County, city)
  • Obtain certificate of occupancy for premises in Wilmington (Wilmington (New Castle County) building department, city)
  • Obtain a City of Wilmington business license (City of Wilmington Finance Department, Wage and Business License Division, city)

With your current selections, the licenses and permits are: Delaware business license and gross receipts tax; County/city business license — Wilmington, New Castle County, Delaware; Obtain certificate of occupancy for premises in Wilmington; Obtain a City of Wilmington business license. Change the industry above to see yours.

Sources: corp.delaware.gov, revenue.delaware.gov, labor.delaware.gov

Formation comes first; tax, license and employer registrations wait on it. In your plan the first steps are:

  1. Maintain a registered agent in Delaware
  2. File formation documents with the Delaware Division of Corporations
  3. Obtain an Employer Identification Number (EIN)

Sources: corp.delaware.gov, revenue.delaware.gov

Known government fees for your plan: $0.00 one-time and $475.00 per year.

Steps without a recorded fee are not counted, so check each agency's fee schedule before you budget.

Sources: corp.delaware.gov, revenue.delaware.gov

In your plan for Wilmington, requirements come from four levels. Delaware sets formation, state taxes and employer rules; the city and county add local licenses and taxes.

  • Federal (2): Obtain an Employer Identification Number (EIN); File federal income tax return: Form 1040 with Schedule C
  • State (6): Maintain a registered agent in Delaware; Pay LLC annual tax (Delaware); Register for and file Delaware entity-level taxes; Delaware business license and gross receipts tax…
  • City (3): County/city business license — Wilmington, New Castle County, Delaware; Obtain certificate of occupancy for premises in Wilmington; Obtain a City of Wilmington business license

Sources: corp.delaware.gov, revenue.delaware.gov

  • Register for unemployment insurance with Delaware Department of Labor.
  • Workers' compensation: Delaware Office of Workers' Compensation. Required when: 1 employee
  • Delaware Paid Family and Medical Leave contributions: applies from 10 employees.
  • Register to withhold Delaware income tax from wages.

Sources: labor.delaware.gov, labor.delaware.gov, revenue.delaware.gov

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