Property Taxes
New Castle County Tax Line - (302) 395-5340
New Castle County Government has created a dedicated phone line for residents with questions regarding their tax bills. Please call (302) 395-5340 to connect with New Castle County Tax Line.
Resources from New Castle County
Additional Information
Please note, the information below is provided by New Castle County Government:
- If your revised bill is showing a negative amount for your school taxes, you are receiving a reduction (credit) to your school tax bill originally sent out in July.
- Senior citizen discounts shown on the original bill in July will not display on this revised bill but are included in the revised amount due. You do not need to be reapply for the senior citizen discount.
- If your mortgage company pays your school and property taxes no further action is needed on your part. You do not need to request a refund as the County is working directly with the mortgage companies to refund your previous over payment.
- If you pay by check and have already paid your tax bill, your revised bill may show a negative amount for your school taxes. New Castle County tax account will be credited for this amount or if the negative amount is greater than $50 you can request a refund.
- For refunds, credits or any other billing questions please contact New Castle County directly at (302) 395-5340 or email their Treasury Department at treasury@newcastlede.gov.