City rate guide · Reviewed August 11, 2026
South San Francisco, California Sales Tax Rate
The combined sales tax rate in South San Francisco, California is 9.875% as of 2026. That includes the California state rate of 7.25%.
Located in San Mateo County.
Sales tax calculator for South San Francisco
- Sales tax (9.875%)
- $9.88
- Total with tax
- $109.88
How this rate is composed
The California state sales tax rate is 7.25%. The combined 9.875% rate for South San Francisco comes from CDTFA city and county tax rates (TAC table) (2026-07-01 to 2026-09-30).
Literal combined rate for the jurisdiction from the CDTFA tax-area rate table (statewide base 7.25% plus district taxes).
Where multiple tax areas exist for a jurisdiction, the highest combined rate is shown.
Rates change on official schedules — confirm the current rate and effective date against the source above before filing.
Related local sales tax rates in California
Compare the county and same-type jurisdictions with the closest combined rates.
South San Francisco sales tax questions
What is the sales tax rate in South San Francisco, California?
The combined sales tax rate is 9.875%. It includes the California state rate of 7.25% and applicable local rates.
How much sales tax is charged on a $100 purchase in South San Francisco?
At the 9.875% combined rate, a $100 taxable purchase produces $9.88 in sales tax.
When was the South San Francisco sales tax rate reviewed?
Prophit.ai reviewed this guide on 2026-08-11 using CDTFA city and county tax rates (TAC table). Confirm the official source before filing because rates can change.
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