California sales tax rates 2026: Calculator, nexus, and due dates

California sales tax rates by city and county

California’s sales tax structure is layered. The 7.25% state base rate applies everywhere, but counties, cities, and special districts add their own local sales tax rates on top — meaning the combined rate can vary significantly by location.

Because California is a destination-based state, you charge the rate based on where your customer receives the product, not where your business is located.

A sale shipped to Los Angeles requires 10.25%, while a sale shipped to San Diego requires 7.75%. California centralizes all filings with the CDTFA, so you only file one return regardless of how many jurisdictions you sell into.

Major California cities and their 2026 combined rates:

California sales tax calculator

Use TaxCloud’s California sales tax calculator below to check the combined state, county, city, and district rate for any California ZIP code or street address. Rates come from TaxCloud’s rooftop-level rate engine, updated in real time.

California nexus thresholds

Every business with customers in California is subject to nexus laws. You are required to register and collect sales tax if you trigger “nexus” through a physical presence in the state or by exceeding specific economic thresholds as a remote seller.

California economic nexus threshold summary: Remote sellers must register and collect California sales tax once they exceed $500,000 in gross sales to California customers in the current or previous calendar year, effective April 1, 2019. California has no transaction count requirement. The threshold is based on sales dollars only. ^[2]

California economic nexus

Economic nexus is established when a remote seller without physical presence exceeds a state’s sales or transaction thresholds.

You will trigger California economic nexus if you exceed the following thresholds in the current or previous calendar year:

• Sales threshold: $500,000 in total gross sales (including marketplace sales)
• Transaction threshold: None (California is dollar-volume only).

California physical nexus

Physical nexus is established when a business has a tangible presence in a state, such as property, employees, or inventory.

You have physical nexus (and must register from dollar one) if you have:

• Inventory: Storing goods in a 3PL or Amazon FBA warehouse in California.
• Personnel: Remote employees, contractors, or sales reps based in the state.
• Property: Leasing tangible property like physical offices, stores, or sample rooms.

Registering for a California tax permit

Once you trigger nexus, you must register with the California Department of Tax and Fee Administration (CDTFA) before you can legally collect sales tax. Operating without a permit after crossing the threshold exposes you to back taxes, penalties, and interest from the date nexus was established — not the date you registered.

1. Gather your information. You’ll need your FEIN, estimated annual sales, business structure details, and bank account information.
2. Submit your application. Use the CDTFA’s Online Services portal to apply for your Seller’s Permit. Most applications are approved immediately or within a few business days.
3. Note your effective date. California requires you to begin collecting sales tax on the date nexus was triggered — not the date you registered. If there’s a gap, you may owe back taxes for that period.

If you have questions about your California registration or compliance history, TaxCloud’s U.S.-based support team typically responds within 2 hours and can review your setup directly.

Understanding California sales tax calculations

California’s calculation rules are straightforward compared to states with home rule complexity — but destination-based sourcing and marketplace reporting requirements trip up sellers who are new to the state.

What is taxable in California?

Taxability in California is determined by how a product is classified under state law. Below is a high-level summary for 2026:

What is tax exempt in California?

California provides sales tax exemptions for essential goods and specific categories. The following items are exempt from California sales tax:

• Prescription medications: Drugs prescribed by a licensed healthcare provider
• Most groceries: Unprepared food items (excluding hot prepared food)
• Cold prepared food sold to-go: Such as deli sandwiches and salads
• Diapers and menstrual hygiene products: Exempt under recent legislation
• Certain medical devices: Including prosthetics and specific health equipment
• CalFresh purchases: Items bought with CalFresh (food stamp) benefits

California sales tax due dates and filing frequency

Filing frequency is assigned by the CDTFA based on your reported or estimated sales volume. In California, sales tax returns are generally due on the last day of the month following the reporting period.

Key filing dates for 2026

• Monthly filers: Due the last day of the following month. For example, January sales are due February 28, which falls on a Saturday in 2026, so the return is due Monday, March 2.
• Quarterly filers:
  • Q1 (January to March): due April 30, 2026
  • Q2 (April to June): due July 31, 2026
  • Q3 (July to September): due October 31, 2026, a Saturday, so the return is due Monday, November 2
  • Q4 (October to December): due January 31, 2027, a Sunday, so the return is due Monday, February 1
• Annual filers: Due January 31, 2027 for the 2026 tax year (moves to Monday, February 1, because January 31 is a Sunday
• Quarterly prepayment filers (average tax liability of $17,000 or more per month): Prepayments are due on the 24th of the first two months of each quarter.

For every state’s deadlines in one place, see our 2026 sales tax due dates guide. ^[3]

Critical 2026 compliance notes:

• The “prepay” trap: If your tax liability exceeds $17,000 per month, California moves you to a “Quarterly Prepay” schedule. You must make two prepayments (due on the 24th of the first two months) before filing your final quarterly return.
• Zero-return requirement: If you are registered but had $0 in sales this period, you must still file. Failure to file a “Zero-Tax” return is the #1 cause of unnecessary “Forgetfulness Penalties” for ecommerce founders.
• Weekend rule: If the due date falls on a weekend or state holiday, your return is due the next business day.

California and the SST program

No, California is not a member of the Streamlined Sales Tax (SST) program.

However, as a Certified Service Provider of the SST program, TaxCloud can save your business time and money on state registration and filing costs in 24 SST-member states and handle your California compliance.

New to SST? Read what the Streamlined Sales Tax program is and how it works.

2025-2027 California sales tax changes

We track California’s shifting sales tax landscape so you don’t have to.

The biggest change ahead: California will begin taxing SaaS and prewritten software on January 1, 2027, under SB 122, signed in June 2026.

Here is every recent and upcoming California change we’ve tracked, ordered by effective date:

Last reviewed: Oct 2, 2026