The Sunnyvale sales tax rate is 9.75% as of April 1, 2026. That rate applies to most purchases of physical goods inside city limits and combines California’s 7.25% statewide base with 2.50% in district taxes approved by Santa Clara County voters. Retailers collect the full amount at the register and remit it to the California Department of Tax and Fee Administration (CDTFA), which routes the money to state and local programs.1California Department of Tax and Fee Administration. California City and County Sales and Use Tax Rates
How the 9.75% Breaks Down
Every California city charges at least 7.25%. That statewide floor funds the state General Fund along with county public safety, health and social services, and local government operations.2California Department of Tax and Fee Administration. Detailed Description of the Sales and Use Tax Rate
The remaining 2.50% in Sunnyvale comes from voter-approved district taxes layered on top. These include levies from the Santa Clara Valley Transportation Authority (VTA), such as the half-cent Measure B tax funding transit, highway, expressway, and bicycle infrastructure across the county. District tax revenue stays regional rather than flowing to Sacramento.1California Department of Tax and Fee Administration. California City and County Sales and Use Tax Rates
What Gets Taxed in Sunnyvale
Sales tax applies to tangible personal property, meaning physical items you can see, weigh, or touch. Electronics, furniture, clothing, vehicles, building materials, and household goods all qualify.3California Department of Tax and Fee Administration. California Revenue and Taxation Code 6016 – Tangible Personal Property
Most professional services are not taxed. There’s a wrinkle for fabrication work, though. Under Revenue and Taxation Code Section 6006(b), producing or fabricating a new physical product for a consumer counts as a sale, so a machinist who builds a custom bracket or a shop that assembles furniture to your specifications charges tax on the finished product. Pure repair labor that restores an item to its original condition is a nontaxable service.4California Department of Tax and Fee Administration. Sales and Use Tax Annotations – 435.0000
Digital Products Are Generally Not Taxed
California does not tax digital products delivered electronically. Software downloads, e-books, mobile apps, digital images, and other data products transmitted over the internet fall outside the sales tax, including canned software programs customers download from a server.5California Department of Tax and Fee Administration. Internet Sales (Publication 109) Nontaxable Sales Buy the same software on a physical disc, however, and the full 9.75% applies to the disc. The delivery method decides the tax.
What’s Exempt
A few essentials sit outside the sales tax entirely.
Groceries
Food products for human consumption are exempt when sold for home preparation. That covers produce, dairy, meat, eggs, cereals, canned goods, frozen foods, bottled water, and most of the grocery aisle.6California Legislative Information. California Revenue and Taxation Code 6359 The exemption disappears when food is sold as a meal or in a form ready to eat on the premises. Hot prepared foods are taxable whether you eat them in the store or take them to go, and carbonated beverages and alcohol are taxable regardless of where you drink them.7California Department of Tax and Fee Administration. Tax Guide for Grocery Stores
Prescription Medicines
Prescription medications dispensed by a registered pharmacist or furnished directly by a licensed physician, dentist, or podiatrist are exempt under Revenue and Taxation Code Section 6369. Certain medical devices such as wheelchairs and prosthetics also qualify.8California Department of Tax and Fee Administration. California Revenue and Taxation Code 6369 – Prescription Medicines Over-the-counter medicines like aspirin and cough syrup are taxable at the full 9.75%.
Use Tax on Out-of-State Purchases
When you buy something from an out-of-state seller who doesn’t collect California tax, you owe the equivalent amount as use tax. The rate matches the local sales tax rate, so a Sunnyvale resident owes 9.75%. This comes up most often with online orders from smaller retailers, purchases made while traveling, and items bought from private sellers in other states.
You can report and pay use tax two ways: on your California state income tax return, where the CDTFA provides a lookup table to estimate the amount based on income, or directly through the CDTFA’s online portal.9California Department of Tax and Fee Administration. California Use Tax, Good for You. Good for California Most people with just a few untaxed purchases handle it on their income tax return. Businesses that hold a seller’s permit report use tax on their regular CDTFA return.
If You’re Selling in Sunnyvale
Before making any taxable sales, you need a California seller’s permit from the CDTFA. The requirement applies to individuals, corporations, partnerships, and LLCs, at wholesale or retail. Even short-run operations like holiday pop-ups and rummage sales lasting up to 90 days need a temporary permit.10California Department of Tax and Fee Administration. Obtaining a Sellers Permit The permit itself is free and you register online.
The CDTFA assigns a filing frequency based on your expected tax liability. Most small businesses file quarterly; higher-volume sellers file monthly or make monthly prepayments on a quarterly cycle; very small sellers may qualify for annual filing. Quarterly returns are due April 30, July 31, October 31, and January 31. Monthly filers owe their return by the last day of the following month. If a due date lands on a weekend or state holiday, it shifts to the next business day.11California Department of Tax and Fee Administration. Filing Dates for Sales and Use Tax Returns
Missing a deadline is expensive. The CDTFA charges a 10% penalty for filing late and a separate 10% penalty for paying late, though the combined penalty for a single period will not exceed 10% of the tax owed. Interest starts accruing immediately on any unpaid balance.12California Department of Tax and Fee Administration. Trouble Paying Taxes