Sussex County, Delaware Property Tax Due Dates
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Sussex County Property Tax Due Date

Delaware

(302) 855-7760

2026 Property Tax Due Dates

Official Source
Due Date

September 30

Full payment

Pay Taxes Online →
Penalty: 6% county + 5% school initially, then 1% per monthGrace period: None

Payment Methods

Online, Mail, In-Person

Sussex County Treasurer

How to Pay

Online

Pay using credit card or e-check

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By Mail

Mail check payable to Sussex County Treasurer

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In Person

Visit the Treasurer's office

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Other Counties in Delaware

KentNew Castle

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Helpful Guides

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Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.