How a Delaware paycheck works
Delaware's income tax is graduated with seven steps, and its top rate begins at a fairly low income, so most full-time employees are taxed at the top rate on their last dollar. What distinguishes the Delaware calculation is that the exemption is a tax credit rather than a deduction: it comes off the computed tax, not off the wage, so it is worth the same amount to every employee whatever they earn.
Federal income tax withholding
Federal withholding annualises the wage, subtracts the standard deduction for the filing status on Form W-4 Step 1, applies the graduated schedule for that status, and deducts the dependent credit from Step 3. This page models a W-4 with Steps 2 and 4 blank: one job, no spouse income, no other income, no extra withholding.
Social Security and Medicare
Social Security takes a flat rate on wages up to an annual ceiling that moves each year. Medicare applies to every dollar, and above a fixed threshold the employer withholds the Additional Medicare tax on the excess.
Deduction first, credit last
The employer annualises the wage, subtracts a standard deduction that depends on filing status, runs the remainder through the rate schedule, and then subtracts a fixed credit for each personal exemption claimed on the Delaware certificate. Married employees filing jointly get double the standard deduction; head of household uses the single amount for withholding purposes. The first slice of taxable income is taxed at zero, so a small wage produces nothing, and the credit can wipe out the tax entirely for a low earner with several exemptions.
Wilmington earned income tax
Wilmington levies an earned income tax on wages earned in the city, whether or not you live there. It is a flat rate charged on top of the state tax and is not included in the figures below. Employees working elsewhere in Delaware have no local wage tax at all.
What the employer pays on top
The employer matches Social Security and Medicare and pays federal unemployment tax at its net rate. Delaware unemployment insurance is an employer contribution at an experience-rated percentage on a state wage base. Delaware also runs a paid leave programme whose contributions are shared, and how much an employer passes to employees depends on its arrangements, so no paid leave line is shown here.
What this calculator assumes
The figure models a salaried employee paid evenly across the year with a standard Form W-4 and state certificate, and no pre-tax deductions. It leaves out:
- Pre-tax contributions such as a 401(k), health premiums, HSA or flexible spending accounts.
- Extra withholding requested on the federal or state certificate, and the W-4 Step 2 and Step 4 adjustments.
- Bonuses and other supplemental wages, which may be withheld at a flat supplemental rate.
- Employer-side state unemployment insurance, which is priced per employer.
- Employees outside the normal Social Security system, such as some public-sector staff and certain visa holders.
Withholding versus your final tax bill
Withholding is a prepayment. The federal and state returns replace these assumptions with your real situation: itemised deductions, other income, and credits payroll knows nothing about. One job usually produces a refund; two jobs or a working spouse often produce a balance due.