California Sales Tax Calculator (2026) — Add or Reverse Tax
California's combined sales tax rate is 8.99% (7.25% state + 1.74% average local). Use the calculator below to add California sales tax to a price, or reverse a tax-included total to find the pre-tax price and exact tax amount.
How to use this calculator:
- Adding tax — enter a pre-tax price, pick "Add tax to price," and the calculator applies the California rate to show the tax amount and final total.
- Reversing (extracting) tax — enter a total that already includes tax, pick "Extract tax from total," and the calculator divides by 1 + the rate to isolate the pre-tax price and the exact tax paid.
- Pick the rate that matches your situation: the average combined rate is a good statewide estimate, but the state-only or maximum-local rate is more precise if you know the exact city or county.
Understanding California Sales Tax
California's state sales tax rate is 7.25%, and local jurisdictions add an average of 1.74% on top, bringing the typical combined rate to 8.99%. Rates vary by city and county — the highest combined rate in California can reach 12.50%.
California has the highest statewide base sales tax rate in the country at 7.25%, and its economic nexus threshold ($500,000) is among the highest in the US.
California also levies a state income tax, which shapes how much the state relies on sales tax revenue relative to other funding sources.
Groceries
Exempt from California state sales tax.
Largest city
Los Angeles
State income tax
Yes
Why Reverse Sales Tax Calculation Matters
Receipts, invoices, and marketplace payouts usually show only the tax-included total — not the pre-tax price. Reversing the calculation matters for bookkeeping (separating revenue from tax collected), expense reports (reimbursing only the pre-tax cost), and price comparisons (checking what an item actually costs before California's tax is applied). Because dividing by (1 + rate) is not the same as simply subtracting the rate from the total, doing this by hand is a common source of errors — the calculator above handles it exactly.
California Taxability at a Glance
🛒 Groceries
Exempt
👕 Clothing
Taxable
💊 Prescription drugs
Exempt
History & Rate Breakdown
California introduced its sales tax in 1933 at a 2.5% rate during the Great Depression. In 1955 the legislature passed the Bradley-Burns Uniform Local Sales and Use Tax Law, standardizing a 1% local rate shared by cities and counties, and in 1969 it added the Transactions and Use Tax (district tax) law letting local voters layer additional taxes on top.
California's 7.25% base combined rate — the highest statewide floor in the US — stacks a 6.00% state rate, a 0.25% state rate dedicated to local public safety funding, and a 1.00% uniform Bradley-Burns local rate split between city and county. On top of that floor, voter-approved district taxes can add another 0.10% to roughly 2%+ in some cities, pushing many California combined rates above 9-10%.
Where the Money Goes
California's sales tax is a major secondary revenue source behind the state's income tax, funding general state operations plus a dedicated 0.25% local public safety allocation built into the base rate.
Business Use Case: Registering & Collecting California Sales Tax
An online retailer whose California sales exceed $500,000 in a year — one of the highest economic nexus thresholds in the country — must register with the California Department of Tax and Fee Administration (CDTFA) and then determine not just the 7.25% base rate but any voter-approved district tax layered on top of each buyer's specific city or county.
Sales Tax Terms Glossary
Combined rate
The state sales tax rate plus any applicable local (city, county, or special district) rates — the actual rate charged at checkout in a given location.
Reverse sales tax
The process of working backward from a tax-included total to find the pre-tax price and the exact tax amount, using total ÷ (1 + rate) = pre-tax price.
Economic nexus
A sales threshold (in dollars, transaction count, or both) that obligates an out-of-state seller to collect and remit sales tax even without a physical presence in the state.
Marketplace facilitator
A platform (e.g. Amazon, Etsy, eBay) that collects and remits sales tax on behalf of third-party sellers under most states’ marketplace facilitator laws.
Real-World Example
A $500.00 purchase in California at the average combined rate of 8.99%:
- Tax amount: $500.00 × 8.99% = $44.95
- Total price: $500.00 + $44.95 = $544.95
California Sales Tax Compliance for Sellers
Remote and online sellers establish economic nexus in California once they exceed $500,000.00 in annual sales (no separate transaction-count test). Once nexus is established, a seller must register with the state, collect California sales tax at checkout, and file returns on the state's required schedule. Marketplace facilitators (Amazon, Etsy, eBay, Walmart) generally collect and remit on behalf of third-party sellers automatically.
Frequently Asked Questions — California Sales Tax
What is the sales tax rate in California?▾
Does California tax groceries?▾
Does California have a state income tax?▾
When do online sellers need to collect California sales tax?▾
How do I calculate California sales tax on a purchase?▾
How do I reverse California sales tax to find the price before tax?▾
What is the formula to back out sales tax from a receipt in California?▾
References & Sources
Rates last verified January 2026. California sales tax rates and thresholds can change — always confirm current figures with the California Department of Revenue before filing or invoicing. This tool is for estimation and educational purposes only and is not tax, legal, or accounting advice.
Jordan Hayes
Verified AuthorLead Content Editor & Personal Finance Specialist
Jordan Hayes is a personal finance content strategist with 9+ years building educational finance and health resources. He has written and fact-checked over 200 personal finance guides covering mortgage amortization, retirement planning, tax strategy, and budgeting. His work applies IRS publications, Federal Reserve data, and peer-reviewed research to make complex calculations accessible.