The California sales tax rate you pay is the 7.25% statewide base (6.00% state + 1.25% mandatory local) plus whatever district taxes voters have approved where the sale is delivered — which is why the real rate runs from 7.25% to roughly 10.75% depending on the address. District rates change every quarter somewhere in the state; the latest round took effect April 1, 2026 (CDTFA Special Notice L-1022), including Santa Clara County’s jump to 9.750%. Always confirm a specific address with the CDTFA rate lookup.
And when a rate question has turned into an audit or an assessment, our California sales tax attorney page explains how those disputes get defended.
If a rate dispute has already turned into an audit or assessment, the question becomes representation — here is when hiring a California sales tax attorney actually pays for itself.
You may be wondering how sales tax rates are set and why they seem to vary across the state. Here is a brief review of the sales and use tax and then we will break down how California sets its sales tax rate and the various elements that impact the rate.
Sales and Use Tax Review
Currently, the base tax rate for the state sales tax is 7.25%. Local jurisdictions may add onto that. This tax is imposed on all California retailers and applies to all retail sales of merchandise within the state. All retailers must have a seller’s permit and pay sales tax to the California Department Of Tax And Fee Administration.
Retailers are allowed to collect the sales tax from customers but are not required to do so. Most retailers do. In all cases, they are liable for sales tax on anything they sell, whether the tax is collected from customers or not.
The use tax is levied on consumers of merchandise used, consumed, or stored in the state of California. It does not matter where it was purchased. If you buy something from an online source that is not registered to collect California sales tax or else does not collect it, you are on the hook for paying the tax, which is the same rate as the sales tax.
Use tax is also imposed on leased merchandise such as cars, boats, and planes. If you make a purchase in a foreign country and hand carry it through U.S. customs into California, you must pay the use tax.
Sales and use taxes are mutually exclusive. You cannot be required to pay both sales tax and use tax for the same merchandise.
Components of the Statewide Sales and Use Tax
There are seven components to the sales and use tax rate; six are state and one is local. Just over half of the sales and use tax goes to the state’s General Fund. A portion of a percent is sent to the state for local safety, statewide education, and local revenue support for health and social services.
Key Takeaways
- There are seven components to the sales and use tax rate; six are state and one is local. Just over half of the sales and use tax goes to the state’s General Fund.
- The local component receives just over one percent for county transportation and city or county operations.
- Quarterly filers with monthly prepayments due file their tax returns on the same quarterly dates as above but prepayments are due on the 26th of each month.
The local component receives just over one percent for county transportation and city or county operations.
How different the rate really is, city to city
A few anchor points show the spread (verified against official sources as of July 2026 — rates change quarterly, so always confirm your address with the CDTFA lookup):
| Location | Combined rate |
|---|---|
| Statewide floor (no district taxes) | 7.25% |
| San Diego | 7.75% |
| San Francisco | 8.625% |
| Sacramento | 8.75% |
| Santa Clara County (since April 1, 2026) | 9.75% |
| Highest combined rates in the state | ~10.75% |
And the map keeps moving. The April 1, 2026 quarterly update changed rates in multiple counties, and litigation changes them too — a judge blocked Long Beach’s voter-contested increase this year. That churn is exactly why businesses get district taxes wrong in audits: they apply last year’s rate, or their home rate instead of the delivery-address rate. When the CDTFA audits, it recomputes every transaction at the rate that applied at that address on that date.
Why Does the Tax Vary and Change?
While the state sets a base sales tax rate, district tax jurisdictions are allowed to add onto it. The jurisdiction may encompass an entire city, or one jurisdiction may be covered by two different tax districts.
If you are engaged in business within a tax district, you are liable for the state sales tax and any additional taxes levied by the tax district in which your business is located.
Tax rates are changed two ways:
- Voters approve a new tax
- An old tax district expires
Destination vs. Origin Tax Rates and Nexus
Some states require you to collect sales tax for the state where the purchase originated (origin tax rate) while others require you to collect sales tax for the state where the merchandise was purchased (destination tax rates).
Other states, including California, determine whether you have a nexus within the state requiring you to pay sales or use tax.
A nexus is a significant presence in the state; in California, this means every retailer engaged in business within the state for the purpose of commerce according to the clause of the U.S. Constitution has a nexus.
It also includes any retailer that federal law allows the state to impose a use tax collection duty.
You could have a nexus simply because you have a presence at a trade show or you have affiliate sales within the state. Selling through AmazonFBA may cause you to have a nexus; the amount of tax depends on the location of the California warehouse where your products are stored.
Filing Deadlines
Filing deadlines are set for annual, quarterly, and monthly filers. There is also an option for quarterly filing with monthly prepayments.
Annual sales tax returns are due January 31 of the year following the taxable period. If you plan to file an annual return for 2021, your deadline was January 31, 2022.
Quarterly sales tax returns are due on the following dates in 2022:
- First quarter (Q1) is due April 30
- Second quarter (Q2) is due July 31
- Third quarter (Q3) is due October 31
- Fourth quarter (Q4) is due January 31, 2018
If you file monthly, your return is due on the last day of the month following the taxable month. For example, you would file sales taxes for February 2022 by March 31, 2022.
Quarterly filers with monthly prepayments due file their tax returns on the same quarterly dates as above but prepayments are due on the 26th of each month.
Keep in Mind Going Forward
The definition of a retailer “engaged in business” in a tax district means that you:
- Ship or deliver the merchandise into the district using your own vehicle
- Maintain, occupy, or use any type of office, sales room, warehouse, or other space within the district, even if it is a temporary space, you are doing business indirectly or through an agent
- Have a representative of any kind making sales or deliveries, installing or assembling personal property, or taking orders within the district
- Receive revenue from the rental or lease of tangible personal property located in the district
- Sell or lease vehicles or undocumented vessels, which will be registered within the district
As long as you are “engaged in business” within the district, you are responsible for reporting and paying district taxes as well as state taxes. The requirement also applies to multiple business locations; you are liable for the sales tax amount in force in the district where you have a retail presence and conduct principal negotiations for sales within that district.
For use tax, there is a single exception to payment or collection: if you ship or deliver merchandise outside of a district to a purchaser’s principal residence address or business address unless the merchandise is a vehicle, vessel, or aircraft. The caveat is that you must accept, in good faith, a properly executed declaration under the penalty of perjury to be relieved of this obligation.
Some things are not taxable:
- Services you perform unless you create or manufacture a product in the process
- Exceptions noted in the tax code such as prescription medicine and
medical devices
Some customers do not have to pay tax. They include:
- Non-profit organizations
- Resellers who can show you a valid resale certificate
As of March 2022, only five states in the U.S. do not impose a state sales tax. The rest have a state sales tax with California charging the most. As a retailer, it is your responsibility to file and pay the sales taxes on products you sell within the state although most retailers simply charge it to the customer.
If you file on time according to the schedule you select, you avoid paying penalties and interest on late filing and payment.
Facing a CDTFA audit or California sales tax dispute? See how I defend California sales tax cases →
Facing a California Sales Tax Audit?
CDTFA audits can result in significant assessments — especially if records are incomplete. The direction of the audit is largely set by how you respond to the initial document request. If you’re at any stage of a sales tax audit, a brief review can clarify what you’re facing.
Discuss My Sales Tax Audit → Or call: (619) 378-3138
Why did my city’s sales tax rate just change?
District tax measures. Voters approve city and county add-ons throughout the year, and the CDTFA implements changes quarterly — the April 2026 round alone moved several county rates. The CDTFA lookup always has the current figure by address.
What is the highest sales tax rate in California?
Combined rates top out around 10.75% in the highest-tax districts, against the 7.25% statewide base. The gap — over three points — is entirely local district taxes, which is why rate questions are really address questions.