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License in Person
Licensing Ordinance
All dogs and cats must be vaccinated against rabies and licensed by the age of 3 months or within 60 days of acquiring the animal.
View the complete San Mateo County ordinance
Licensing Locations
You may purchase your license or pick up/drop off your paperwork in person at Peninsula Humane Society:
12 Airport Boulevard
San Mateo, CA
You may also pick up or drop off your paperwork for processing at the Health Department located at 1600 W Hillsdale Blvd, Suite 203, San Mateo 94402.
Required Paperwork
- A current rabies vaccination certificate is required if the rabies vaccination on file has expired. Please check your certificate to make sure that your address is correct and your pet’s description is correct and complete. A primary breed should always be included, even if the animal is a mixed breed.
- 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.
- Proof of age, such as a copy of any document listing the owner’s name and date of birth. Please feel free to mark out any sensitive information, such as ID numbers, on the copy before submission.
Note: Please send legible copies of your paperwork and maintain a copy for your records.
License Fees
License Fees Effective 4/1/24
| Dog License Fees | 1-Year | 3-Year | |
| Unaltered Dog | $55.00 | $160.00 | |
| Spayed/Neutered Dog | $25.00 | $70.00 | |
| Senior Discount (60+) | 1-Year | 3-Year | |
| Unaltered Dog | $23.00 | $64.00 | |
| Spayed/Neutered Dog | $10.00 | $25.00 | |
| Other Fees | |||
| Late Fee (30 days past lic. expire) | $20.00 | ||
| Replacement Tag | $10.00 | ||
| A license is required for all dogs in the County. | |||
| Cat License Fees | 1-Year | 3-Year | |
| Unaltered Cat | $20.00 | $55.00 | |
| Spayed/Neutered Cat | $8.00 | $19.00 | |
| Senior Discount (60+) | 1-Year | 3-Year | |
| Unaltered Cat | $12.00 | $31.00 | |
| Spayed/Neutered Cat | $5.00 | $12.00 | |
| Other Fees | |||
| Late Fee (30 days past lic. expire) | $7.00 | ||
| Replacement Tag | $5.00 | ||
| Cats in all cities as well as unincorporated County are required to be licensed. | |||
In an effort to reduce pet overpopulation and starvation, licensing unaltered pets is higher. In addition, the County includes a $1 surcharge in all licensing fees. This surcharge is placed in the Animal Population Trust Fund used to assist pet owners with their pet’s sterilization fees.
 | Download License Application (PDF format) *To use as an electronic fillable form, open in Adobe Reader. |
| Solicitud de Licencia (PDF format) *To use as an electronic fillable form, open in Adobe Reader. |
Due Date
Your license is due on the first of the month in which your license expires. There is a grace period of 30 days in which to make payment for your pet’s license.
By ordinance, a late fee is added if payment is not made within 30 days of the due date.