What is the sales tax rate in Antioch?

9.75% — the California state rate of 7.25% plus 2.5% in local tax in effect in Antioch, as published by the CDTFA for rates effective July 1, 2026.

How much is sales tax on $100 in Antioch?

$9.75, so $100 comes to $109.75 at the register.

Is the Antioch rate the same for every ZIP code?

Not necessarily. Sales tax follows city, county and district boundaries, not ZIP codes, and a ZIP can cross a boundary. For one exact address, the CDTFA's own lookup at maps.cdtfa.ca.gov is the final word.

Does the rate apply to everything I buy?

No. California exempts some categories — most groceries and prescription medicines among them — and a few items carry extra fees on top. This calculator applies the general rate to a taxable amount.

7.25% state + 2.5% local

Antioch sales tax calculator

The combined sales tax rate in Antioch, Contra Costa County is 9.75%, effective July 1, 2026.

Price before tax

Local taxes

Antioch local taxes 2.5%

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

$109.75

$9.75 of tax at 9.75%

Price before tax: $100.00
California state tax: $7.25
Local tax: $2.50
Total: $109.75

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Sales tax on common amounts in Antioch

At 9.75%, split into the state and local portions.

Price	State tax	Local tax	Total tax	You pay
$10.00	$0.73	$0.25	$0.98	$10.98
$25.00	$1.81	$0.63	$2.44	$27.44
$50.00	$3.63	$1.25	$4.88	$54.88
$100.00	$7.25	$2.50	$9.75	$109.75
$500.00	$36.25	$12.50	$48.75	$548.75
$1,000.00	$72.50	$25.00	$97.50	$1,097.50

Other places in Contra Costa County

Each line is the CDTFA's combined rate for that jurisdiction.

Brentwood 8.75%

Clayton 8.75%

Concord 9.75%

Danville 8.75%

El Cerrito 10.25%Hercules 9.25%Lafayette 9.25%Martinez 9.75%Moraga 9.75%

Oakley 8.75%

Orinda 9.75%Pinole 10.25%Pittsburg 9.25%Pleasant Hill 9.25%Richmond 9.75%San Pablo 9.5%San Ramon 9.75%Walnut Creek 9.25%

Frequently asked

What is the sales tax rate in Antioch?: 9.75% — the California state rate of 7.25% plus 2.5% in local tax in effect in Antioch, as published by the CDTFA for rates effective July 1, 2026.
How much is sales tax on $100 in Antioch?: $9.75, so $100 comes to $109.75 at the register.
Is the Antioch rate the same for every ZIP code?: Not necessarily. Sales tax follows city, county and district boundaries, not ZIP codes, and a ZIP can cross a boundary. For one exact address, the CDTFA's own lookup at maps.cdtfa.ca.gov is the final word.
Does the rate apply to everything I buy?: No. California exempts some categories — most groceries and prescription medicines among them — and a few items carry extra fees on top. This calculator applies the general rate to a taxable amount.

Source for this rate

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.

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