Taxes in Seaford
Seaford's tax picture follows Delaware's real, favorable statewide structure directly, layered onto Sussex County's own lowest-in-state property tax rate.
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Learn moreNo general sales tax
Delaware levies no general sales tax at any level of government, statewide -- a real, flat 0% rate that applies fully in Seaford.
Delaware's real, graduated income tax
Delaware taxes income across seven brackets for 2026, from 0% on the first $2,000 to a 6.6% top marginal rate on income at or above $60,000.
Sussex County's lowest-in-state property tax rate
Sussex County's own real, disclosed effective property tax rate runs approximately 0.33% -- the LOWEST of Delaware's three counties, well below the national average.
Key takeaways
- Seaford benefits from Delaware's real, flat 0% sales tax statewide.
- Delaware's 2026 income tax runs 0%-6.6% across seven brackets.
- Sussex County's ~0.33% effective property tax rate is the lowest of Delaware's three counties.
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