California sales tax: rates, nexus & CDTFA filing
California is the most-asked-about sales tax jurisdiction in the US — highest base rate (7.25%), highest economic-nexus threshold ($500,000), modified origin sourcing, and a use-tax obligation that catches most SMBs. CDTFA enforces aggressively, so getting the rate and the filing right matters.
The California numbers at a glance
| Field | Value |
|---|---|
| Base statewide rate | 7.25% (highest in US — 6.00% state + 1.25% local Bradley-Burns) |
| Local district add-ons | Up to 2.50% — combined rates reach 10.75% in some LA cities |
| Economic nexus threshold | $500,000 in CA sales (current or prior calendar year) |
| Marketplace facilitator threshold | $500,000 — facilitator collects, you don't |
| SaaS taxable? | No (remote access exempt; downloaded electronic delivery also exempt since 2014) |
| Use tax rate | Same as sales tax rate at destination — owed on out-of-state purchases with no tax |
California's unusual modified-origin sourcing
Most destination-based states apply the buyer's full rate. California splits it:
- State (6.00%) + Bradley-Burns local (1.25%) = 7.25%— applied at the seller's location for in-state sales. The base 7.25% does not change with the buyer's address.
- District tax (up to 2.50%) — applied at the buyer's location. This is the part that varies by ZIP code and trips up flat-rate calculations.
- Inter-state sales into California from out-of-state sellers — full combined rate at the buyer's location (standard destination sourcing).
Practically: if you sell from Sacramento to a Los Angeles customer, you charge 7.25% (your base) + the LA district add-on. HelloBooks handles this automatically once the customer's ship-to state and ZIP are set.
California sales tax filing schedule
CDTFA assigns frequency at registration based on expected liability:
- Monthly— typical for sellers with > ~$17,000 in monthly tax. Return due the last day of the next month. Prepayments required on the 24th of the second and third months of each quarter.
- Quarterly — the default for most SMBs. Return due the last day of the month after the quarter ends.
- Annually — very low-volume sellers. Return due January 31.
California is one of the few states that requires prepayments for monthly filers. Miss a prepayment and CDTFA can reassess at a higher frequency.
What's exempt in California
Categories most relevant to SMB sellers:
- SaaS delivered via remote access (no tangible transfer)
- Electronically delivered software (downloaded copies)
- Digital products — ebooks, music, video downloads
- Most groceries, prescription drugs, medical devices
- Manufacturing equipment (partial exemption available)
- Resale items with a valid resale certificate (CDTFA-230)
Service-only businesses (legal, consulting, accounting) are generally exempt unless the service involves transfer of tangible property.
How HelloBooks does this
HelloBooks handles every California-specific quirk — modified origin sourcing, district add-ons, marketplace separation, monthly prepayments, and use tax on out-of-state purchases.
- 1
Register with CDTFA
Apply for a California Seller's Permit on the CDTFA portal (free). You'll get a Sales Tax Account Number plus a filing-frequency assignment (monthly / quarterly / annual) based on expected liability. Enter the permit number, filing frequency, and any local district registrations into HelloBooks.
- 2
Connect your sales channels with CA flagged
Tag the customer's ship-to state when invoices are created. HelloBooks separates California-direct sales (you remit) from California marketplace-facilitator sales (Amazon / Etsy / eBay / Walmart remit) so the return uses the right number on each line.
- 3
Apply the right combined rate
On Pro and above, HelloBooks computes the rate through Avalara AvaTax — the right state + Bradley-Burns + district rate per ship-to ZIP code, kept current with CDTFA's destination-rate tables. For drop-ship transactions, the rate keys on the customer's ship-to, not the warehouse origin. On the Free Plan you apply manual per-state rates.
- 4
File the quarterly return — and prepayments if applicable
Quarterly filers: HelloBooks builds the quarterly return draft from the period's tagged sales. Monthly filers also see the two prepayment vouchers due the 24th of each non-last quarter month. Review the working paper, file directly on CDTFA, mark paid in HelloBooks.
- 5
Reconcile use tax
HelloBooks tracks out-of-state vendor bills where no sales tax was collected, computes the use tax owed at the destination rate, and rolls it into the next return as a use-tax line. Keeps you audit-ready on the often-forgotten compliance line.
Frequently asked questions
What is the California sales tax economic nexus threshold?
$500,000 in cumulative California sales during the previous or current calendar year — a higher bar than most states ($100,000 / 200 transactions). California dropped the transaction-count test in 2019. Once you cross $500,000, register with CDTFA within the standard registration window and start collecting on the first sale after the registration takes effect.
What is the California sales tax rate?
California's statewide sales tax rate is 7.25% — the highest base rate in the US. On top of the base, local district taxes add up to 2.50%, taking many ZIP codes to 9.75% or higher. The combined rate depends on the ship-to district. Los Angeles County rates range 9.50%–10.75% by city; San Francisco is 8.625%; Sacramento city is 8.75%.
Does California tax SaaS and digital products?
California exempts SaaS delivered without a tangible transfer of code (the buyer accesses software remotely, no download). Software delivered electronically as a downloaded copy is also exempt as of 2014 — only software delivered on a tangible medium (CD, USB drive) is taxable. Digital downloads of music, ebooks, and videos are exempt. This is one of the more SaaS-friendly state regimes.
What is California's destination vs origin sourcing rule?
California is a modified origin-sourcing state for in-state sales: the state rate (6.00%) and the local 1.25% Bradley-Burns rate apply at the seller's location, while the district rate applies at the buyer's location. For inter-state sales into California from outside the state, the destination rule applies — use the buyer's full combined rate.
How does the California marketplace facilitator law work?
California's Marketplace Facilitator Act (AB 147, effective October 1, 2019) requires marketplace facilitators with at least $500,000 in California sales to collect and remit sales tax on behalf of third-party sellers. Amazon, Etsy, eBay, Walmart, and Shopify Markets in California are facilitators. You still track marketplace gross sales for your own nexus calculation but do not remit tax on those transactions.
How often do California sales tax returns get filed?
CDTFA assigns your filing frequency at registration based on expected liability: monthly (typical for > $17,000 monthly tax), quarterly (the default for most SMBs), or annually for very small sellers. Prepayments are required quarterly for monthly filers — the 24th of the second and third months of each quarter. Returns and tax payments are due by the last day of the month following the period.
What is the use tax obligation in California?
California has a parallel use tax — 7.25% (or higher with local districts) — on goods purchased from out-of-state sellers when sales tax was not collected. If your business buys office equipment from a non-California vendor that did not charge tax, you owe use tax on it, reported on the same return. This catches a lot of SMBs who think they 'saved' tax by buying out of state.
What are the most common California sales tax mistakes?
(1) Treating marketplace sales as a remit obligation when the marketplace already collects. (2) Using a flat 7.25% rate instead of the destination-specific combined rate (often missing 1–3% in district tax). (3) Forgetting to remit use tax on out-of-state purchases. (4) Missing the quarterly prepayment for monthly filers. (5) Not registering after a single $500k+ year and assuming the threshold resets — it doesn't, you keep nexus.
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US tax rules change every filing season. Always verify the current position with the official sources below before filing.
- IRS — irs.govInternal Revenue Service. Forms, publications, due dates, and current-year thresholds for federal income tax, payroll tax, and 1099 reporting.
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- SSA — Business Services OnlineSocial Security Administration portal for W-2 / W-3 e-filing, EIN verification, and AccuWage validation.
- Streamlined Sales Tax — streamlinedsalestax.orgMulti-state Streamlined Sales and Use Tax Agreement (SSUTA) — registration in 24 SST member states with one application.
- Tax Foundation — Sales Tax & NexusIndependent state-by-state research on sales tax rates, economic nexus thresholds, and franchise / margin tax structures.
Run all of this on autopilot in HelloBooks
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