California SaaS sales tax at a glance
| Detail | Value |
|---|---|
| Is SaaS taxable? | Taxable From January 1, 2027 |
| Downloaded software | Taxable From January 1, 2027 |
| Base state sales tax rate | 7.25% (from January 1, 2027) |
| Typical combined rate | 7.25% to 10.75% |
| Local tax rates? | Yes |
| Economic nexus threshold | $500,000 in sales |
| Reference period | The previous or current calendar year |
| Revenue authority | California Department of Tax and Fee Administration |
Is SaaS taxable in California?
The rule
California treats SaaS as a taxable digital product starting January 1, 2027, with the full subscription charge subject to tax.
The main exception
Starting January 1, 2027, cloud infrastructure that customers use to run their own software (IaaS and PaaS) and custom software stay exempt, so not every cloud product becomes taxable.
What to do
Starting January 1, 2027, charge the state and district rate on California SaaS invoices, and bill any custom development or human-performed services on separate lines.
Is your product taxable in California?
Whether a particular product is taxed in California can depend on two things: how the software reaches the customer and how you write the invoice.
Does it matter how the software reaches the customer?
In California, downloaded software is taxable from January 1, 2027. Software counts as downloaded when the customer installs a copy, such as a desktop app, an agent or an offline client, even if most of the product runs online.
Does it matter how you write the invoice?
In California, setup, implementation and training fees are not taxable if separately stated. Listing them on their own invoice lines, rather than inside one software price, is what lets them be treated separately.
How are other software products and services taxed in California?
SaaS rarely ships alone. This is how California treats the products and charges that usually sit next to it on an invoice.
| Product or charge | Treatment |
|---|---|
| Downloaded software | Taxable From January 1, 2027 |
| Custom software | Not taxable |
| Cloud infrastructure and platforms (IaaS, PaaS) | Not taxable |
| AI tools and API access | Taxable From January 1, 2027 when it gives access to the provider's software |
| Digital goods (e-books, music, video) | Not taxable |
| Maintenance and support | Taxable If mandatory; optional contracts are partly taxable |
| Setup, implementation and training | Not taxable If separately stated |
Does California tax B2B and B2C SaaS differently?
No. California treats SaaS the same way for business and consumer buyers.
How much sales tax do you charge on SaaS in California?
SaaS is taxed at a base rate of 7.25% (from January 1, 2027), and the typical combined rate is 7.25% to 10.75%.
Do cities or counties tax SaaS differently?
No. Cities and counties follow the state's rules for SaaS, so whether it is taxed does not change from one address to another.
General sales tax rates, including any local rates, are in our California sales tax guide.
Do you need to register for sales tax in California?
Physical and economic nexus
Registration follows nexus. Once you have nexus in California and sell something taxable there, you need to register. Nexus comes from a physical presence, such as an office, staff or inventory in the state, or from passing an economic threshold.
In California, the economic nexus threshold is $500,000 in sales over the previous or current calendar year. Exempt sales still count toward it. Our California nexus guide covers the rules in full.
Which address sets the rate
For remote sellers, the rate is based on where your customer is, not where your business or servers are. Buyers with users in more than one state can give you a multiple points of use certificate and pay California tax only on the share used there.
Buyers who do not pay tax
Some buyers can give you a certificate instead of paying tax. In California, that includes resellers and the federal government. Collect the certificate at the time of sale and keep it, because in an audit it is the only thing standing between you and the tax.
How to register, collect and file in California
Register
If you need to register, do it with the California Department of Tax and Fee Administration through CDTFA Online Services. Note your account number and the filing frequency you are given, since both decide when and how you file.
Collect the right amount
Charge tax only on what California taxes. Collecting tax that is not owed creates its own refund and audit problems.
- List services on their own invoice lines, so each charge is taxed on its own terms.
- Describe each product on the invoice the way it actually reaches the customer: online access, a download or something shipped.
- Recheck the treatment whenever you add a desktop app, a hardware option or a new add-on, since each can change what is taxable.
File and keep records
Your filing frequency is assigned when you register: monthly, quarterly or annually, depending on how much tax you collect. Returns are due by the last day of the month after each period ends.
You must file a return for every period, even when no tax is due.
Keep invoices, exemption certificates and returns for at least four years. That paperwork is what decides the taxable amount if you are audited years later.
What should SaaS businesses watch when selling in California?
Past sales where no tax was charged
If you should have been collecting and were not, the California Department of Tax and Fee Administration can assess the unpaid tax plus a 10% penalty for late filing or late payment, and interest that accrues monthly.
A voluntary disclosure agreement can reduce penalties if you come forward first. Work out which past sales were taxable before you come forward, so you know the size of the exposure.
Rule changes worth tracking
Starting January 1, 2027, SaaS becomes taxable in California under SB 122. Until then, it is not taxed.
The rules verified date at the top of this page shows when these rules were last checked.
How does Galvix help SaaS businesses manage California sales tax compliance?
We handle this
Sales tax in California is one line in a much larger problem. Most SaaS companies sell into 30 or 40 states, each with its own answer, threshold and filing calendar.
- We map each of your products and add-ons against every state's rules, including the ones that can change the answer in California.
- We watch your sales against every threshold and tell you before you cross one, not after.
- We handle registrations wherever you need one.
- We file and remit on each state's schedule, zero returns included.
- We collect and store exemption certificates so they are there when an auditor asks.