Taxes in Elsmere
Elsmere's tax picture combines New Castle County's own cited property tax rate with Delaware's real, statewide income and sales tax structure.
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Learn moreNew Castle County's property tax rate
New Castle County's own cited effective rate ran approximately 0.70%-0.741%, below the ~1.02% national median, though it is Delaware's highest-taxed county.
Delaware's real, graduated income tax
Delaware's 2026 income tax runs a seven-bracket structure from 0% to a 6.6% top marginal rate, applying uniformly to all filing statuses.
A real, disclosed 2026 reassessment delay
New Castle County's 2026 property tax bills are now expected to mail in mid-November 2026 following a court-ordered reassessment -- confirm the current bill directly.
Key takeaways
- New Castle County's property tax rate runs below the national median despite being Delaware's highest-taxed county.
- Delaware's 7-bracket, 0%-6.6% income tax (2026) applies statewide.
- A real, disclosed 2026 bill-mailing delay affects New Castle County property owners -- confirm the current bill directly.
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