Correct office term: County Board of Assessment.
How the Delaware system works
County assessment offices maintain property values; county finance or treasury offices handle billing.
Before opening a property portal
- Identify whether the task concerns value, payment, recorded documents or an appeal.
- Use the official office or authorized portal listed on a completed county page.
- Do not assume a county office handles municipal assessment where the state uses city or town systems.
- Confirm filing dates for the current year before submitting an exemption or appeal.
Available county and local guides
Local property guides are being verified.
Draft records exist in the CMS but are blocked from publication until official links, search instructions and source statuses pass the content gate.