Tax Rates and Due Dates
Cannabis Business Tax Rates
On May 19, 2026, the Board of Supervisors adopted Ordinance No. 6566 amending the Cannabis Business Tax Ordinance (Chapter 35 of the Sonoma County Code). This ordinance amended the cannabis cultivation and manufacturing tax rates; the retail tax rate remains the same.
All businesses engaged in the cannabis industry are assessed taxes according to operation type. The information below can be used as an approximate guide to estimate cannabis business taxes.
Cultivation Tax Rates for fiscal year 2026-2027 (effective July 1, 2026)
| Cultivation Type | Rate Per Square Foot |
| Outdoor | $0.00 |
| Mixed-Light | $0.00 |
| Indoor | $0.00 |
Supply Chain Business Tax Rates for fiscal year 2026-2027 (effective July 1, 2026)
| Operation Type | Percentage of Gross Receipts |
| Retail (Storefront and Non-Storefront) | 3.0% |
| Manufacturing | 0.0% |
| Transporter | 0.0% |
| Distributor | 0.0% |
| Nursery | 0.0% |
| Testing Laboratory | 0.0% |
Cannabis Business Tax Due Dates
| Installment | Quarter | Due Date |
|---|---|---|
| 1st Installment | July 1 - September 30 | October 31 |
| 2nd Installment | October 1 - December 30 | January 31 |
| 3rd Installment | January 1 - March 31 | April 30 |
| 4th Installment | April 1 - June 30 | July 31 |
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