Questions about your tax bill?

Many questions you may have regarding your property tax bill can be answered by clicking here. It opens a sample tax bill with detailed explanations about various parts of the bill.  PLEASE NOTE: for best results, use Internet Explorer or Mozilla Firefox.

If you have additional questions, our customer service representatives are available Monday through Friday from 8:00 a.m. to 4:00 p.m. by calling 302-323-2600.

Check Your Payment Status

Taxpayers can access their property tax information and payment status online. Property owners who misplace or who do not receive their bills can download a printable version via the site, which also provides detailed account information including payment history and a breakout of specific charges for property, school, light, & crossing guard taxes. If your tax bills are paid by a mortgage company or bank, you are still responsible to make sure the bill is paid.

Methods of Payment

  • Walk-in payments are accepted at the New Castle County Government Center, located at 87 Reads Way in New Castle. Payments by cash, check, money order, and debit card are accepted. The payment window is open between the hours of 8 a.m. and 4 p.m., Monday through Friday.
  • A drop box is also available for making check and money order payments 24 hours a day at the main entrance of the New Castle County Government Center.
  •  If you lose or misplace the self-addressed envelope that was sent with the bills, you can mail your payment to:


    New Castle County
    P.O. Box 782888
    Philadelphia, PA  19178-2888

  • The address above is an electronic payment processor. DO NOT postdate your check, as it will not affect the processing date. Your check will be processed when received. Please sign your check as well. If you pay your bill through your online banking application, please be sure to update our mailing address.

  • 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.

Billing Schedule

The 2019 tax billing statements will be mailed the third week of July 2019. If you have not received your bill by August 9, 2019, call the New Castle County billing information line at 302-323-2600.

Both New Castle County and local school property taxes will be due Monday, September 30, 2019. Any balances that remain on accounts as of October 1, 2019 are subject to a 6% penalty on County line items, a 5% penalty on school line items, and a 1% penalty for all line items each month thereafter.

Take a look at important tax dates (PDF) for more information.

Pre-Payment of Property Taxes

In an effort to assist customers in managing the amount of their annual property tax bill amounts, New Castle County allows you to pay on your account in advance.

Any advance payment made will post to your account as a credit and apply to the next bill generated on your account. The County accepts “pre-payments” by all accepted payment types listed in the above “Methods of Payment” section.

You may also choose to make pre-payments through an online payment service, possibly through your bank. If you choose to make payments to us in this manner, you will need to have your account number (for property tax bills, this is referred to as your “parcel number”), and our name and mailing address for payments.

You may get your account/parcel number from your bill or from our website. You may search for your account/parcel number on our website with your property address.

Mailing address (For a PROPERTY TAX payment): 

New Castle County
P.O. Box 782888
Philadelphia, PA  19178-2888

Monthly Installment Option

If your account is in good standing (no delinquent balance owed) and you wish to pre-pay your property taxes in lower monthly installments rather than one lump sum, New Castle County now offers this convenient option. Pre-payments can be made either by automatic debit through your checking or savings account, or by mailing in monthly payments by check. Click here for more information.

Refund of Tax or Sewer Charges Paid in Error

If you believe you paid New Castle County property tax or sewer service fees in error, you can request a refund by completing this form (PDF). The form must be completed, signed and returned to New Castle County's Treasury Division either by postal mail, fax, or email (a completed scanned copy with signature).

New Castle County Government Center
Office of Finance - Treasury
87 Reads Way
New Castle, DE 19720

FAX - (302) 395-5110

Tax Rates

View the current residential and commercial tax rates (PDF) for the 2019 - 2020 tax year.


If you have questions or need additional information, contact the New Castle County billing information line at 302-323-2600 or via email. You can also check out our frequently asked questions (PDF).

Impuesto a la propiedad - preguntas frecuentes - 2019 (PDF).