Ontario Sales Tax Rate
8.75% combined in Ontario, San Bernardino County · California's #26 city by population
The sales tax rate in Ontario is 8.75% as of October 13, 2026. That is the 7.25% statewide base plus 1.50% in local district taxes: 0.50% across San Bernardino County and 1.00% from the city itself.
Ontario Sales Tax Calculator
Sales tax at 8.75%
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Where the 8.75% comes from
Every California sale starts at the 7.25% statewide base. San Bernardino County voters and agencies have added 1 district tax that applies in every city in the county, and Ontario adds 1 of its own. Each line below is from CDTFA's district tax list.
| Tax | Applies in | In effect since | Rate |
|---|---|---|---|
| State sales and use tax | All of California | — | 6.00% |
| Local sales tax (Bradley-Burns): 1% for city or county operations, 0.25% for county transportation | All of California | — | 1.25% |
| San Bernardino County Transportation Authority | San Bernardino County | April 1990 | 0.50% |
| City of Ontario Transactions and Use Tax | Ontario only | April 2023 | 1.00% |
| Combined rate in Ontario | 8.75% |
Sales tax on common purchases in Ontario
| Price before tax | Tax at 8.75% | Total |
|---|---|---|
| $100.00 | $8.75 | $108.75 |
| $500.00 | $43.75 | $543.75 |
| $1,000.00 | $87.50 | $1,087.50 |
| $2,500.00 | $218.75 | $2,718.75 |
| $35,000.00 (car registered in Ontario) | $3,062.50 | $38,062.50 |
Groceries (most food for home consumption) and prescription medicine are exempt from California sales tax, so these rates apply to taxable goods such as clothing, electronics, furniture, restaurant meals and vehicles.
How Ontario compares
Ontario's 8.75% is the 48th-highest rate among California's 100 largest cities (shared with 20 others). Across the 24 cities in San Bernardino County, rates run from 7.75% (Adelanto, Big Bear Lake, Chino Hills and 9 more) to 9.00% (Montclair). Unincorporated areas pay 7.75%.
| Other large cities in San Bernardino County | Rate |
|---|---|
| San Bernardino | 8.75% |
| Fontana | 8.75% |
| Rancho Cucamonga | 7.75% |
| Victorville | 8.75% |
| Rialto | 7.75% |
| Hesperia | 7.75% |
| Chino | 8.75% |
Frequently Asked Questions
What is the sales tax rate in Ontario, California?
Ontario's combined sales tax rate is 8.75% as of October 13, 2026: the 7.25% statewide base plus 1.50% in district taxes (0.50% countywide and 1.00% from the city).
Does Ontario have its own city sales tax?
Yes. Ontario adds 1.00% on top of the county rate through City of Ontario Transactions and Use Tax (1.00%). That city portion applies only inside the city limits.
What is the sales tax on a car bought in Ontario?
For a vehicle, the district tax follows the address where the car is registered, not where the dealer is. Registered at an Ontario address, a car is taxed at 8.75%: $3,062.50 on a $35,000 purchase.
How does Ontario's rate compare with the rest of San Bernardino County?
Rates in San Bernardino County's cities run from 7.75% to 9.00% (Montclair). Ontario is at 8.75%. Unincorporated areas of the county pay 7.75%.
Is the rate the same at every address in Ontario?
Almost always. CDTFA's rate applies across the city limits, but a mailing address can say Ontario while the property sits in an unincorporated area or a neighboring city. Check a specific address with CDTFA's online rate lookup.
Sources
- CDTFA California City & County Sales & Use Tax Rates (combined rate for each quarter)
- CDTFA-105, District Taxes, Rates, and Effective Dates and Explanation of Tax Rate Changes (each district tax)
- CDTFA rate lookup by address
Educational information only. Rates are copied from CDTFA's published tables and change on the first day of a calendar quarter when new district taxes start or old ones end. Confirm the rate for a specific address with CDTFA before filing a return.