Search Government Business Services How Do I? HomeGovernmentDepartmentsFinanceOnline Tax and Sewer Payments Online Tax and Sewer Payments Property and School Taxes Major credit cards are accepted through Paymentus, a third-party company that accepts Visa, MasterCard, Discover, American Express, and electronic check. You can pay your property and/or school tax online by clicking here, or by calling Paymentus toll-free at 877-225-7351. Paymentus charges users a service fee equal to 2.5% of the total payment. If you have any questions concerning making payments through Paymentus, you may call their Customer Contact Center at 800-420-1663. Residential Sewer Service Bills Major credit cards are accepted through Paymentus, a third-party company that accepts Visa, MasterCard, Discover, American Express, and electronic check. You can pay your residential sewer service bill online by clicking here, or by calling Paymentus toll-free at 877-225-7351. Paymentus charges users a service fee of $5.25 for each transaction per $650 increment. If you are paying more than $650, you will be required to pay with multiple transactions when using this service. If you have any questions concerning making payments through Paymentus, you may call their Customer Contact Center at 800-420-1663. Contact Us Office Address: Office of Finance New Castle County Government Center 87 Reads Way New Castle, DE 19720 Map and directions Billing/Tax Questions: treasury@newcastlede.gov Phone: (302) 395-5340 Hours: Monday through Friday 8 a.m. to 4 p.m. County Online Checkbook Investment Portfolio Assessment Budget & Financial Information Financial Advisory Council Other Post Employment Benefits Board of Trustees Pension Board of Trustees Sewer Billing Taxes Maintenance Corporations Billing Online Tax and Sewer Payments Parcel Search Start or Expand a Business Work for NCC Online Tax and Sewer Payments Libraries Parks & Rec Contact New Castle County Government Center 87 Read's Way New Castle, DE 19720 Phone: 302-395-5555 Quick Links Agendas & Minutes Council Districts County Council FOIA Request Tax Assessment Maps Helpful Links Home Site Map Contact Us Accessibility Copyright Notices Disclaimer Government Websites by CivicPlus® COVID-19 Facebook Twitter Instagram Calendar NCCTV GreeNCC Enable Google Translate