Sussex County, DE tax records are available free through the county’s online Citizen Self Service portal and in person at the Treasury Division in Georgetown. The records show your property’s assessed value, the county, school, and library tax rates applied to it, any credits or penalties on your account, and whether your balance is current. No login is needed to look up a property online.1Sussex County Citizen Self Service. Citizen Self Service
Searching the Online Portal
Open the Sussex County Citizen Self Service portal and search by owner name, street address, or parcel ID.2Sussex County Delaware. Property Records Search The parcel ID is the cleanest match and is printed on your deed, closing documents, and any prior tax statement. Name and address searches work too, but common names and recent address changes can produce multiple hits or none.
Once your property comes up, selecting the bill opens the full statement. You can download it as a PDF for your own files, which is what you’ll want for a mortgage application, your tax preparer, or an appeal packet. The portal lets you filter by tax year, so prior bills are a few clicks away if you need to compare how the assessment or rates have moved.
Getting Records in Person or by Mail
If you’d rather speak with someone, the Treasury Division is on the first floor of the Sussex County Administrative Office Building at 2 The Circle in Georgetown. Hours are 8:30 AM to 4:30 PM on business days.3Sussex County. Pay Your Bill Staff can look up your account, print records, and walk you through line items on the bill.
Mail requests go to the Treasury Division, PO Box 601, Georgetown, DE 19947. Include the parcel ID and a return address, and allow extra time for processing. Treasury is also the official repository for paper records and older historical data that may not be fully loaded in the online system.4Sussex County. Treasury
Reading What the Record Shows
Every bill combines a county rate of $0.0191 per $100 of assessed value, a library rate of $0.0023 per $100, and a school rate that varies by district. For the 2025 tax year (July 1, 2025 through June 30, 2026), total combined rates run from about $0.21 per $100 in the Cape Henlopen district to roughly $0.38 per $100 in the Woodbridge district.5Sussex County. Sussex County Annual Rates On a $300,000 assessment, that’s the difference between about $633 and $1,147 a year.
Some districts, such as Indian River, also add a flat capitation tax per adult in the household. Not every district charges one, so the line may or may not appear on your bill.5Sussex County. Sussex County Annual Rates
The assessed value on the record reflects the county’s court-ordered reassessment, set at projected fair market value as of July 1, 2023.6Sussex County. Sussex County Reassessment It won’t shift year to year with the market; it stays put until the county reassesses again or you win an appeal. The record also flags whether you’re receiving the Senior School Property Tax Credit, whether any delinquent penalties have accrued, and whether liens have been filed. The balance line tells you at a glance whether the account is current.
Paying the Bill
Property taxes are due by September 30 each year. Mailed payments must be postmarked by that date to count as on time.7Sussex County. Sussex County Begins Issuing Annual Property Tax Bills You have four ways to pay:3Sussex County. Pay Your Bill
- Online through the Self Service portal. Credit and debit cards carry a 3% service fee ($2.50 minimum); e-checks are $1.00.
- By phone at (866) 791-9802, with a 2.52% service fee.
- By mail with a check, money order, or cashier’s check payable to Sussex County, property ID written on the payment, sent to PO Box 601, Georgetown, DE 19947.
- In person at the Treasury Division office during business hours.
Miss the September 30 deadline and the unpaid balance accrues a penalty of 1.5% per month until paid in full.8Delaware Code Online. Delaware Code 9 – Chapter 86 Collection of Taxes It compounds, so a $1,000 bill picks up $15 after one month and $180 across a full year of nonpayment.
Prolonged nonpayment ends in a monition sale, the Sussex County version of a tax sale. The county does not sell liens; it sells the property itself, and the buyer pays 100% of the price in cash or certified funds on the day of sale. The former owner has 60 days after the court confirms the sale to redeem by paying everything owed.9Sussex County. Sheriff Sales
Claiming the Senior School Property Tax Credit
Homeowners 65 and older may qualify for a state credit that cuts school property taxes in half, up to $500 a year, on their primary residence.10Sussex County. State Senior Citizen School Property Tax Credit To qualify, you need to:
- Hold a Delaware driver’s license.
- Use the property as your full-time, primary home.
- Have been legally domiciled in Delaware for at least 10 consecutive years if you established residency on or after January 1, 2018 (three years if you moved in between January 1, 2013 and December 31, 2017).
- Have paid your prior year’s property tax bill in full.
Applications are due by April 30.11Delaware Department of Finance. Senior School Property Tax Relief Once approved, the credit appears as a line on your tax record and reduces the school portion of the bill. Pull last year’s record from the portal; if that line isn’t there and you qualify, you’ve been paying up to $500 a year more than you had to.
Appealing the Assessed Value
If the assessed value on your record looks too high, you can challenge it before the Sussex County Board of Assessment Review, a five-member panel appointed by County Council.12Sussex County. Board of Assessment Review The Board can order the Director of Finance to adjust the value when the evidence supports it.13Justia Law. Delaware Code 9-7004 – Department of Finance
The appeal window runs from March 1 through May 31 each year. Contact the Sussex County Assessment Division starting March 1 to schedule a hearing; miss the window and you forfeit the appeal for that cycle. At the hearing you present evidence that the assessed value exceeds actual market worth. The strongest proof is a recent professional appraisal, comparable sales of similar nearby homes, and documentation of physical problems like foundation damage or flooding. A professional appraisal typically runs $300 to $1,200. Hearings may be held by a panel of three or more Board members or by an individual referee appointed by the Director of Finance with County Council’s consent.13Justia Law. Delaware Code 9-7004 – Department of Finance
The Board sends a written decision by registered mail within 30 days. If you still disagree, you have 30 days from receipt of the decision to appeal to the Superior Court of Sussex County.14Justia Law. Delaware Code 9-8312 – Notice That Assessment May Be Appealed A court appeal is a bigger undertaking and generally warrants hiring an attorney.
Using the Record for Federal Taxes and Escrow Checks
Sussex County property taxes are deductible on your federal return if you itemize on Schedule A. The deduction sits inside the state and local tax (SALT) cap, which for the 2026 tax year is $40,400 for most filers and $20,200 if married filing separately.15Office of the Law Revision Counsel. 26 USC 164 – Taxes The county, school, and library tax amounts are the deductible pieces. Service fees and special assessments for local improvements like sidewalks or water main upgrades generally are not. The PDF from the Self Service portal is your documentation if the IRS asks.
If you have a mortgage, your servicer likely collects taxes monthly in escrow and pays the county before September 30. Federal law caps the servicer’s cushion at roughly two months of escrow payments.16Office of the Law Revision Counsel. 12 USC 2609 – Limitation on Requirement of Advance Deposits in Escrow Accounts Even so, the responsibility to see the tax paid lands on the property, not the servicer. Pull up your record on the portal after September 30 each year and confirm a zero balance. If a servicer error caused a late payment, federal rules entitle you to recover actual damages.17Consumer Financial Protection Bureau. Escrow Accounts