Petaluma Sales Tax Calculator
The combined sales tax rate in Petaluma, California is 10.25% in 2026 — a 7.25% California state rate plus 3% in local add-ons. That is the 77th highest rate of the 483 California cities we track, and it runs above California's 8.98% average. On a $100 purchase that's $10.25 in tax for a $110.25 total.
$100.00 total
Before tax: $100.00 · Sales tax: $0.00 (0%)
State & average combined rates: Tax Foundation 2026. Local rates vary by city/county — adjust the rate for an exact figure. How we calculate →
Petaluma sales tax rate in 2026
Petaluma charges a combined sales tax rate of 10.25%: the California statewide base of 7.25% plus 3% in city, county and district add-ons. Petaluma is in Sonoma County.
That local add-on is set by Petaluma and the taxing districts that overlap it, which is why neighboring cities in California can charge a different total even a few miles apart.
Petaluma vs the rest of California
At 10.25%, Petaluma runs above California's 8.98% statewide average combined rate by 1.27%. Among the 483 California cities we track by combined rate, Petaluma ranks the 77th highest.
That puts Petaluma on the higher end for California — worth double-checking against the official lookup tool if you're quoting a price to a customer or filing a return.
Sales tax examples in Petaluma
At Petaluma's 10.25% combined rate:
$100 → $10.25 tax, $110.25 total · $1,000 → $102.50 tax, $1,102.50 total · $25,000 car purchase → $2,563 tax, $27,563 total.
Working backwards: a $1,100.00 receipt total in Petaluma means the pre-tax price was $997.73 and $102.27 was tax — use “Remove tax” mode above to reverse any total instantly.
A note on Petaluma's exact rate
The 10.25% rate applies within Petaluma's official city limits as published by CDTFA — Find a Sales and Use Tax Rate. Addresses with a Petaluma mailing address but outside the incorporated city line — a common situation on the edges of any city — can fall under a different, usually lower, rate.
For an address-exact rate, use the official lookup tool: CDTFA — Find a Sales and Use Tax Rate. This calculator pre-fills the published city-limits rate as a reliable starting point.
Petaluma sales tax — frequently asked questions
What is the sales tax rate in Petaluma, California?
Petaluma's combined sales tax rate is 10.25% in 2026 — 7.25% California state tax plus 3% in local add-ons. That's the 77th highest rate of the 483 California cities we track.
How much is sales tax on $100 in Petaluma?
At Petaluma's 10.25% rate, sales tax on a $100 purchase is $10.25, for a $110.25 total.
How much sales tax will I pay on a $25,000 car in Petaluma?
At Petaluma's 10.25% combined rate, sales tax on a $25,000 vehicle purchase is about $2,563, for a $27,563 total before any trade-in credit or registration fees.
Is Petaluma's sales tax higher or lower than the California average?
Petaluma runs above California's 8.98% statewide average by 1.27%, ranking the 77th highest of the 483 California cities we track.
How do I calculate sales tax backwards from a total in Petaluma?
Divide the total by 1 plus the rate. A $1,100.00 total in Petaluma works back to a $997.73 pre-tax price and $102.27 of tax. Use “Remove tax” mode above to do this automatically.
Does Petaluma's sales tax rate apply everywhere in the Petaluma area?
The 10.25% rate applies within Petaluma's official city limits. Nearby addresses outside the incorporated boundary can be taxed at a different rate — check CDTFA — Find a Sales and Use Tax Rate for an address-exact figure.
Compare nearby cities in California
See all 483 California cities ranked by combined sales tax rate, or compare:
Researched & verified by the Calcuris Data & Research Team. How we build and check our tools →