7.25% state + 2.38% district
San Mateo sales tax calculator
The combined sales tax rate in San Mateo, San Mateo County is 9.63%, effective July 1, 2026.
$
District taxes
San Mateo district taxes 2.38%
From the state's published table for this place — added to the state rate.
California state rate: 7.25% · local rates are added on top
Total to pay
$9.63 of tax at 9.63%
- Price before tax
- $100.00
- California state tax
- $7.25
- Local tax
- $2.38
- Total
- $109.63
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Sales tax on common amounts in San Mateo
At 9.63%, split into the state and district portions.
| Price | State tax | District tax | Total tax | You pay |
|---|---|---|---|---|
| $10.00 | $0.72 | $0.24 | $0.96 | $10.96 |
| $25.00 | $1.82 | $0.59 | $2.41 | $27.41 |
| $50.00 | $3.62 | $1.19 | $4.81 | $54.81 |
| $100.00 | $7.25 | $2.38 | $9.63 | $109.63 |
| $500.00 | $36.25 | $11.88 | $48.13 | $548.13 |
| $1,000.00 | $72.50 | $23.75 | $96.25 | $1,096.25 |
Other places in San Mateo County
Each line is the CDTFA's combined rate for that jurisdiction.
Atherton 9.38%Belmont 9.88%Brisbane 9.88%Burlingame 9.63%Colma 9.88%Daly City 9.88%East Palo Alto 9.88%Foster City 9.38%Half Moon Bay 9.88%Hillsborough 9.38%Menlo Park 9.38%Millbrae 9.38%Pacifica 9.88%Portola Valley 9.38%Redwood City 9.88%San Bruno 9.88%San Carlos 9.38%South San Francisco 9.88%Woodside 9.38%
Frequently asked
- What is the sales tax rate in San Mateo?
- 9.63% — the California state rate of 7.25% plus 2.38% in district taxes in effect in San Mateo, as published by the CDTFA for rates effective July 1, 2026.
- How much is sales tax on $100 in San Mateo?
- $9.63, so $100 comes to $109.63 at the register.
- Is the San Mateo rate the same for every ZIP code?
- Not necessarily. Sales tax is set by city and district boundaries, not by ZIP code, and a ZIP can cross a city line. If an address sits near a boundary, the CDTFA's address lookup at maps.cdtfa.ca.gov gives the rate for that exact address.
- Does the rate apply to everything I buy?
- No. Most groceries and prescription medicines are exempt in California, and some items carry extra fees on top. This calculator applies the general rate to a taxable amount.
Source for this rate
- CDTFA — California City & County Sales & Use Tax Rates (effective 2026-07-01)
- CDTFA address lookup — the rate for one exact address
Rates effective July 1, 2026; table opened 2026-08-26. Rates follow jurisdiction boundaries, not ZIP codes. Estimates only — not tax advice, and not affiliated with the CDTFA.