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Business License Online Renewal

Business licenses for the City of Walnut can now be renewed online. If any of the information printed on your renewal form has changed, or is incorrect, please make the necessary changes during the renewal process. If changes need to be made to any account related information that is not available online, please submit your renewal and corrections by postal mail.
Business Licenses will be sent via email to the email address on the record unless a request for mail delivery is submitted. If you would prefer to receive your license via postal mail, please send an email to If requesting your business license via postal mail, please allow up to 20 days to receive your new business license. Please be sure to include your business name and account number in the email if you are requesting your certificate via postal mail.* *Account numbers can be found on the renewal notice that you received.

Senate Bill (SB) 205, signed by Gov. Newsom in 2019, requires a person or entity who conducts a business operation that is a “regulated industry” to demonstrate enrollment with the NPDES permit program. The SB 205 only affects those businesses with primary Standard Industrial Classification (SIC) codes that are identified by the State Water Board as requiring enrollment in the Industrial General Permit (IGP) are affected. Completion and submission of this information is required with your 2020 business license renewal. For more information, please click HERE.
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Account #
Enter your business license account number. This number can be found on your renewal form in the box labeled "Online Renewals Now Available."
Enter your online renewal pin number. This number can be found on your renewal form in the information box labeled "Online Renewals Now Available." Click here to have the PIN emailed to the primary contact's email on file.