Estimate your quarterly taxes as a self-employed worker in Wilmington for 2026, including self-employment tax, federal income tax, and Delaware state income tax.
Last updated: May 2026 · Data: MIT Living Wage Calculator, C2ER, U.S. Census, BLS, IRS, state and city sources
Wilmington freelancers pay federal self-employment tax, federal income tax, and Delaware state income tax (2.2% to 6.6%). Delaware has no sales tax and is famous as a business-friendly incorporation state. The Court of Chancery specializes in business law, making Delaware the preferred state for corporate formation nationwide.
| Tax Component | Rate / Detail (2026) |
|---|---|
| Self-Employment Tax | 15.3% on 92.35% of net profit |
| Social Security portion | 12.4% on first $176,100 |
| Medicare portion | 2.9% (no cap) |
| SE Tax Deduction | Deduct half of SE tax from income |
| Federal Standard Deduction (Single) | $15,000 |
| Delaware State Income Tax | 2.2% to 6.6% |
| Wilmington Local Income Tax | 1.25% (Wilmington city wage tax) |
| Quarterly Due Dates | April 15, June 16, September 15, January 15 |
Wilmington is the largest city in Delaware and a major corporate and banking center, home to credit-card and financial-services operations drawn by Delaware's business-friendly laws, along with the chemical industry's historic roots and the Court of Chancery.
| Local Metric | Wilmington (2026 estimate) |
|---|---|
| Metro population | 70,000 |
| County / jurisdiction | New Castle County |
| Cost of living index (US avg = 100) | 106 |
| MIT living wage, single adult | $21.00/hour |
| MIT living wage, one earner supporting a family of four | $42.50/hour |
| Applicable minimum wage | $15.00/hour |
| Average rent, 1-bedroom | $1,350/month |
| Average rent, 2-bedroom | $1,650/month |
| Median home price | $280,000 |
| Median household income | $50,000/year |
| Combined sales tax rate | 0% |
| Effective property tax rate | 0.7% of value/year |
Local figures are 2026 estimates compiled from the MIT Living Wage Calculator, the C2ER Cost of Living Index, U.S. Census and Zillow housing data, and city and county sources. Verify current figures before relying on them.
If you expect to owe at least $1,000 in federal tax, you generally must pay quarterly. This covers freelancers, contractors, sole proprietors, and LLC members in Wilmington. Delaware also requires state estimated payments if you expect to owe more than $800 in state income tax.
Federal estimated taxes are due April 15, June 16, September 15, and January 15. Delaware uses the same quarterly schedule as the IRS for its state estimated payments.
A common rule is 25% to 35% of net profit. Because Delaware adds state income tax (2.2% to 6.6%) on top of federal taxes, Wilmington freelancers often set aside toward the higher end. Use the calculator above for your numbers.
The self-employment tax rate is 15.3% (12.4% Social Security up to $176,100 of net earnings, plus 2.9% Medicare with no cap). It applies to 92.35% of net profit, and half of it is deductible against income tax.
Wilmington levies a 1.25% city wage tax on the earnings of residents and of non-residents who work in the city. The calculators on this page show federal, Delaware, and FICA amounts, so people who live or work in Wilmington should add the 1.25% city wage tax on top.