New Castle County, Delaware Not your city or county?

Customer service will be closed for Thanksgiving November 26th and 27th. and online pet licensing are available for your convenience.

PetData wishes you and yours a safe and happy holiday!

License Online

Licensing Ordinance

All dogs aged six months or older in New Castle County, with the exception of the City of Wilmington, must be licensed with the County by March 1st.

View the complete New Castle County ordinance

Instructions to License Online

Ready to purchase your license? If you would like to license online, a convenience fee of $1.95 will apply for each transaction. A current rabies vaccination is required to obtain a license. Please have the vaccination information at hand when you begin. If you do not have the information available, you may pay for the license and submit the information later. The license will be issued after the rabies vaccination information has been received.

Please note: new applications for the disabled discount must be submitted with additional documentation through the mail.

Click here to begin

If you prefer to pay by another method, click here to view your other payment options.

Required Paperwork

  1. A current rabies vaccination certificate is required if the rabies vaccination on file has expired. Please check your certificate for correct address and pet information. Your pet's rabies vaccination must be current at the time of purchase and should be valid at least through March 1st of the year in which the license expires.
  2. Proof of spay/neuter, such as a signed statement from a veterinarian or an invoice for services is required if the pet has been altered since the last licensing period and you are applying for the lower spayed/neutered license fee.
  3. If applying for a service dog license for a seeing eye, lead or guide dog, please submit proof of successful completion of a service dog training program.
  4. Proof of age, such as a copy of any document listing the owner's name and date of birth, is required if applying for the discounted senior citizen (65+) license. Please feel free to mark out any sensitive information, such as ID numbers, on the copy before submission.
  5. If applying for the discounted disabled pet owner license, please submit a copy of the pet owner's social security award letter OR complete the attached Disability Discount Form. The Disability Discount Form requires a doctor's signature. Letters or prescriptions from a doctor cannot be accepted in lieu of the Disability Discount Form.

Your paperwork will not be returned to you, so please retain a copy of your documents for your records.

License Fees

Licensing Fees

1 Year

2 Years

3 Years

Unaltered Dog




Altered Dog




Sr (65+) or Disabled Owner




Service Dog*




Replacement Tag


* A service dog license is available for a seeing eye, lead or guide dog with proof of training.

Your pet's rabies vaccination must be current at the time of purchase and should be valid at least through March 1st of the year in which the license expires.

The cost for licensing unaltered or fertile pets is higher than for licensing spayed or neutered pets in order to promote sterilization and to reduce pet overpopulation and starvation.

Due Date

All dogs aged six months or older must be licensed prior to March 1st. Unlicensed dogs are subject to a fine after March 1st.

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