Cannabis Tax Forms and Instructions
On this page you will find fillable PDF tax return forms for the current fiscal year as well as other tax forms. If you are unable to complete these forms or need to complete a previous year's tax return, please contact the Cannabis Business Tax Program for assistance at CannabisTax@sonomacounty.gov, by phone at (707) 565-7420. or in person at 585 Fiscal Drive, Suite 100, Santa Rosa, CA 95403.
Forms & Payment Remittance Information
- Tax Return for Retail Operations
- Application for Waiver of Penalties and Interest for Cannabis Business Tax
- Cannabis Business Tax Administrative Review Request Form
Tax returns and payments may be submitted through the following methods:
- Online: Please use the tiles above to file/pay online.
- In Person: Payments may be made in person at the Sonoma County Tax Collector's Office. Our office accepts cash, check, money order and credit card payments.
- By Mail: Payments by check or money order may be mailed with your return to our office. Postmarking procedures have changed with the U.S. Postal Service, please see update below.
Important Update for Mailed Tax Payments
The U.S. Postal Service has updated its postmarking procedures. Postmarks now reflect the date mail reaches a regional processing facility, rather than the date it is deposited at the local post office. As a result, postmark dates may be later than the date of mailing which may result in an unintended late payment.
This change does not affect the Sonoma County Tax Collector's requirement that a valid USPS postmark is necessary to establish timely payment, per RTC 2512.
To ensure timely postmarking, the Sonoma County Tax Collector recommends doing one of the following:
- Request a manual postmark at the USPS counter
- Obtain a certificate of mailing from USPS
- Use registered or certified mail
- Mail tax payments well in advance of the due date
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