California Sales Tax Calculator

What this California Sales Tax Calculator does

California's statewide base rate is 7.25% — one of the highest in the U.S. — but most shoppers pay more once county and district surtaxes stack on top. Los Angeles County adds 2.25 percentage points, pushing the combined sales tax rate in many LA ZIP codes to 10.25%. San Diego sits at 7.75%, while Irvine and much of Orange County land at 7.75–8.25% depending on the district. This English-language calculator lets you enter any purchase price and get the exact tax amount and total in seconds. It runs entirely in your browser — 100% client-side — your data never leaves your browser. No uploads, no tracking, no server logs. For budgeting after tax, you might also find our [compound interest calculator](/en/compound-interest-calculator/) useful when projecting how saved dollars can grow over time.

Features

• Statewide base rate built in. The 7.25% California state tax percentage is pre-loaded; you just add any local surtax for your county or city.
• Los Angeles and San Diego presets. Quick-select common rates for the sales tax calculator Los Angeles and San Diego residents use most, including the 10.25% LA County rate.
• Car purchase mode. The California car sales tax calculator path lets you enter a vehicle price and compute tax title and license estimates separately, since the DMV collects use tax at registration.
• Use tax support. Need to calculate California use tax on out-of-state purchases? Enter the item cost and the tool applies the same combined rate that applies in your district.
• Privacy-first architecture. All math runs locally via standard browser APIs — as defined in the WHATWG Encoding Standard for text handling — so no server ever sees your figures.
• Copy result instantly. One click copies the tax amount or grand total to your clipboard, ready to paste into a spreadsheet or quote.

How to use the California Sales Tax Calculator

Enter your purchase amount, select or type your local combined rate, and hit Calculate. Copy the result with one click.

1. Enter the purchase price. Type the pre-tax amount in the input field, e.g. 499.99 for a $499.99 item.
2. Set your combined rate. Select a preset (Los Angeles 10.25%, San Diego 7.75%, Irvine 7.75%) or type a custom rate for your district.
3. Click Calculate. The tool instantly shows the tax amount and the total price including tax.
4. Copy or note the result. Use the Copy button to grab the figure, or read the breakdown directly on screen before checkout or filing.

Common use cases

• Online and in-store shopping in Los Angeles. Shoppers in LA County pay up to 10.25% combined. Use the sales tax calculator Los Angeles mode before buying electronics or appliances to avoid sticker shock at checkout.
• Car purchases at a California dealership. The auto sales tax calculator California path is essential before signing. A $35,000 vehicle at 9% combined rate adds $3,150 in tax alone — separate from title and license fees.
• Small business invoicing. Freelancers and small retailers in San Diego or Irvine can verify the correct combined rate before issuing client invoices, reducing the risk of under- or over-collecting.
• Use tax on out-of-state purchases. California requires use tax when you buy goods from out-of-state sellers who don't collect CA tax. This tool helps you calculate California use tax owed at filing time.
• Home sale capital gains planning. While capital gains tax on a house sale in California is an income tax (not sales tax), buyers and sellers sometimes confuse the two; this tool clarifies the sales-tax side of closing costs. For investment projections, our [loan calculator](/en/loan-calculator/) covers mortgage math.

Frequently asked questions