The Aptos sales tax rate is 9.5 percent as of 2026.1California Department of Tax and Fee Administration. California City and County Sales and Use Tax Rates Aptos is an unincorporated community in Santa Cruz County, so it uses the county’s unincorporated-area rate rather than one set locally. Three voter-approved measures have pushed the total well above California’s 7.25 percent statewide minimum, with the most recent increase taking effect after a March 2024 election.
How the 9.5 Percent Breaks Down
Every taxable purchase in Aptos includes California’s statewide base rate of 7.25 percent. That base comes from a combination of state general fund taxes, a portion earmarked for local governments, and a public safety allocation, rooted in Revenue and Taxation Code Section 6051 and related sections.2California Department of Tax and Fee Administration. Revenue and Taxation Code 6051 – Imposition and Rate of Sales Tax The other 2.25 percent is made up of district taxes that apply in unincorporated Santa Cruz County.
Three voter-approved measures account for most of the local add-on:
- Measure D (2016): a half-cent transportation tax running 30 years, funding highway upgrades, bike and pedestrian paths, road repaving, transit, and safer routes to schools.3Santa Cruz County Regional Transportation Commission. Measure D
- Measure G (2018): a half-cent general fund tax for 12 years, covering emergency response, sheriff and fire services, parks, street maintenance, mental health, affordable housing, and youth and senior programs.4Santa Cruz County Elections Department. 2018 Measure G Impartial Analysis
- Measure K (2024): a half-cent tax with no set expiration, approved in March 2024, funding wildfire prevention, affordable housing, mental health and substance abuse programs, public safety, road maintenance, and homelessness reduction.5Santa Cruz County. General County Revenues
Those three measures add 1.5 percent. The remaining 0.75 percent above the statewide base comes from other pre-existing district taxes allocated to the county. Any further change to the local portion would need new legislation or another voter-approved ballot measure.
What the Tax Applies To
California sales tax applies to tangible personal property, defined in the Revenue and Taxation Code as anything that can be seen, weighed, measured, felt, or touched.6California Department of Tax and Fee Administration. Revenue and Taxation Code 6016 – Tangible Personal Property Standard retail items — clothing, furniture, electronics, household goods — all carry the full 9.5 percent charge. Most standalone services are not taxable, though if a service produces a physical product delivered to the customer, the product portion can be taxed.
Groceries and Medicine
Most grocery food is exempt. Revenue and Taxation Code Section 6359 covers food products for human consumption, including produce, meat, dairy, bread, canned goods, and non-carbonated beverages like bottled water.7California Department of Tax and Fee Administration. Revenue and Taxation Code 6359 – Food Products The exemption disappears when food is sold hot, served for on-premises eating, or sold as a restaurant meal. Carbonated beverages and alcohol are taxable regardless of where you buy them.
Prescription medicines are exempt under Section 6369. Over-the-counter medications are generally taxable at the full rate, which trips people up when the same drug is sold both ways.
Digital Products
California’s sales tax applies to prewritten software only when it’s delivered on physical media like a disc or USB drive. Downloaded software, streaming subscriptions, e-books, and cloud-based services are not taxed.8Legislative Analyst’s Office. The 2026-27 Budget – Sales Tax on Prewritten Software
Casual and Private Sales
Selling a used couch or clearing out your garage doesn’t automatically create a sales tax obligation. California exempts occasional sales by people who aren’t regularly in the business of selling goods. The general rule: fewer than three sales of substantial value within a 12-month period means no seller’s permit and no tax on those sales.9California Department of Tax and Fee Administration. Regulation 1595 – Occasional Sales
One exception matters: vehicles, boats, and aircraft never qualify for the occasional sale exemption, no matter how infrequently you sell them.9California Department of Tax and Fee Administration. Regulation 1595 – Occasional Sales The DMV or relevant registration agency collects use tax on those transactions.
Use Tax on Out-of-State Purchases
When you buy something from an out-of-state seller that doesn’t collect California sales tax, you owe use tax at the same 9.5 percent rate. The simplest way to pay it is on your California income tax return, either by calculating the exact amount or by using the CDTFA’s lookup table based on your adjusted gross income.10California Department of Tax and Fee Administration. California Use Tax
Most large online retailers already collect California sales tax, because the state requires out-of-state sellers with more than $500,000 in annual California sales to register and collect automatically. Use tax mainly comes up for purchases from smaller out-of-state sellers, private party transactions, or items bought while traveling.
If You Sell in Aptos
Any business selling or leasing tangible personal property in California needs a seller’s permit from the CDTFA.11California Department of Tax and Fee Administration. Frequently Asked Questions – Obtaining a Sellers Permit The permit is free. It authorizes you to collect tax from customers and to buy inventory for resale without paying tax on the purchase. You can apply online through the CDTFA.12CA.gov. Apply for a Sellers Permit Even temporary operations lasting 90 days or less at a single location, such as a holiday pop-up or fireworks booth, need a permit.
The CDTFA assigns your filing schedule — monthly, quarterly with or without prepayment, or annual — based on reported or anticipated sales volume. Quarterly returns are due by the last day of the month following the quarter’s close, so January-through-March is due April 30. Annual filers have until January 31 for the prior calendar year. A return is required by the due date even in a period with zero sales.13California Department of Tax and Fee Administration. Filing Dates for Sales and Use Tax Returns
Penalties escalate when a violation looks intentional. Selling without a permit while trying to evade taxes triggers a 50 percent penalty on all taxes owed for the period you operated without one, unless your average liability was $1,000 or less per month. Collecting sales tax from customers but failing to send it to the state carries a 40 percent penalty on the amount not remitted, and the CDTFA treats it as one of the more serious violations a business can commit.14California Department of Tax and Fee Administration. Regulation 1703 Criminal penalties are also available under the Revenue and Taxation Code for fraud, filing false returns, or willful evasion.