Licensing Your Dog Online
Gather the following items before selecting the link(s) below:
- Digital file (PDF, JPEG, TIFF, etc.) of your dog's current rabies certificate from your veterinarian;
- Your Veterinarian's phone number;
- Credit card or checking account payment information.*
Use the link below if you currently have a dog licensed in Chelmsford.
Look Up Your Current Dog License Information and Renew Online Here
Use the link below if you have a new dog that has never been licensed in town.
Download a license application for a new dog here

Dog Licenses Fees*
- December 1- February 28, $15 or $20 for unaltered
- March 1, $20 or $25 for unaltered
- April 1, $25 or $30 for unaltered
- May 1, $30 or $35 for unaltered
- June 1, $35 or $40 for unaltered
*Additional Online Transaction Fees Will Apply
ACH (ELECTRONIC TRANSFER): Pay from your Checking or Savings Account. Each bill paid is considered a separate transaction. There is an additional fee for each transaction.*
CREDIT/DEBIT CARDS: We accept MasterCard®, Discover®, American Express® and VISA®*. If you are using a Debit Card, it will be treated as a credit card payment and will have the same charges associated with credit card payments. *VISA is available for Tax Payments only. The convenience fee for using a credit card is 2.95% of the payment, with a minimum fee of $1.00.
*Prices are subject to change without prior notice.
The cost is $15.00 for each spayed or neutered dog, or $20.00 for each unaltered dog. You can either register online, in person or by mail. Follow the link below for more details.
Please remember that per State Law and Town By-laws, all dogs must have a current rabies and be licensed by February 28 to avoid late fees.