Skip to content
Kintsugi

California starts taxing SaaS on January 1

SaaS sold into California has been tax-free for decades. That ends in — days. Take our free assessment to see if you need to register, what it will cost, and your plan for day one.

--Days
--Hrs
--Min
--Sec
Registration alone takes 3–4 weeks.

100% free · 8 questions · 2 minutes · Results instantly

SOC 2 Type II4.6 G27,000+ companies

Is what you sell taxable?

Pick the closest match.
● Taxable

Taxable from January 1, 2027

SaaS and other remotely accessed prewritten software are explicitly covered. Configuring your platform for one client doesn't make it custom software, and the CDTFA's draft rules treat AI features inside a prewritten platform and mandatory maintenance or license fees as taxable too.

Check my whole setup

Most SaaS teams haven't noticed yet

The ones who do it in December will be waiting in the same CDTFA queue as everyone else.

Check your readiness now if:

Anyone works for you from California

One remote employee or contractor creates nexus from your first dollar of sales.

You closed a $0 permit

You'll need an active registration again. We recommend a new account over reactivating.

You sell annual contracts

Periods from January 1 are taxable, even on contracts you signed this year.

Your buyers are businesses

There's no blanket B2B exemption. Finance teams will see tax on renewals.

Free assessment · 2 minutes

Where do you stand?

Answer 8 quick questions. Get your readiness score, registration status, revenue impact and a dated plan for January 1. Free, no strings attached.

Question 1 of 8

What do you sell to California customers?

Select all that apply.

Why we ask: SB 122 taxes prewritten software, including SaaS, but excludes custom software and digital infrastructure. Usage credits and hybrid platforms are still gray areas.

Your answers stay in your browser until you ask us to email them.

SaaS teams who stopped worrying about sales tax

I have been avoiding sales tax given that I have been heads down focused on my business. But I just spent 3 mins on the platform and I already understand my sales tax exposure.
Sasha NovakovichFounder, ALCOMY

What people ask first

Is this a new "SaaS tax"?

No. SB 122 adds digital products, including SaaS, to California's existing sales and use tax. Registered sellers collect sales tax (or use tax, for out-of-state sellers). Buyers owe use tax only where tax wasn't collected.

Does registering now mean I owe tax now?

No. SaaS sold into California isn't taxable until January 1, 2027. Registering early means you're ready to collect on day one. The CDTFA assigns your filing schedule when it issues the registration, so you may have a return for late 2026, but your SaaS sales on it aren't taxable.

My customers are all businesses. Am I exempt?

No. There's no blanket business-to-business exemption. Sales for resale (with a certificate), purchases for use solely outside California, and some government and school buyers can be exempt with the right paperwork.

My customers use our software in several states. Which state gets the tax?

The sale is sourced to the customer's California billing address first. The draft regulations would let buyers allocate tax across states by a reasonable, documented method, such as user counts, but that rule isn't final.

Do I keep filing $0 returns on a closed permit?

No. A closed permit has nothing to file. The action that matters is getting an active registration before January 1.

What's still being finalized?

Bundles, the line between SaaS and platforms, API tokens and credits, multi-state user allocation and the $5 million direct-payment process. The CDTFA planned to send final emergency regulations to the Office of Administrative Law in early December 2026, and a second rulemaking round is possible in 2027.

What does Kintsugi do here?

Kintsugi tracks your California sales from your billing system, submits your CDTFA registration, then files and remits your returns. Monitoring is free; you pay when we register or file.

Find out where you stand. Free.

— days left. Registration takes 3–4 of those weeks.

Keeping 7,000+ companies sales-tax compliant

  • Chargebee
  • SmarterDx
  • Searchspring
  • Flex
  • BattlBox
  • Obvi
  • Resbiotic