California Sales Tax Changes for SaaS and Software: What Businesses Should Know

California has approved legislation that will significantly expand the application of sales and use tax to many forms of software, including certain Software as a Service (SaaS) offerings and downloaded software.

The changes, introduced through SB 122, are scheduled to take effect on January 1, 2027..

For businesses that sell, purchase, or rely on software, this is an important reminder that sales tax rules continue to evolve, and staying informed is an essential part of maintaining compliance.

What Changed?

Historically, California has treated many digital products and remotely accessed software differently than tangible personal property for sales tax purposes.

Under California SB 122, the state is expanding sales and use tax rules for certain digital products, including software transactions that are transferred electronically or accessed remotely.

The legislation represents one of the most significant changes to California’s sales tax treatment of software in recent years.

When Does the Change Take Effect?

The new law is scheduled to become effective on January 1, 2027.

While businesses are not immediately required to make changes, the additional lead time provides an opportunity to review products, customers, and sales tax processes before the new rules become effective.

Who Should Pay Attention?

• Software companies selling into California
• SaaS providers
• Finance and accounting teams
• Tax professionals
• Businesses purchasing software for internal use

Organizations with customers in California should evaluate how the new rules may affect their sales tax obligations.

Why This Matters

California’s legislation is another reminder that sales tax compliance is not static.

States continue to update tax laws as technology, commerce, and customer purchasing habits evolve.

For businesses operating in multiple states, staying current with these changes is just as important as calculating the correct sales tax rate.

How Businesses Can Prepare

• Review which products and services may be affected.
• Identify customers located in California.
• Evaluate current taxability settings.
• Review how sales tax decisions connect with your ERP, ecommerce platform, or billing systems.
• Discuss the changes with internal finance teams or tax advisors.
• Monitor guidance released by the California Department of Tax and Fee Administration (CDTFA).

As implementation guidance becomes available, businesses should continue reviewing how the law applies to their specific products and transactions.

Sales Tax Rules Continue to Evolve

California’s expansion of sales tax to many software transactions is another example of how quickly state tax laws can change.

Whether your business operates in one state or many, regularly reviewing your sales tax processes helps reduce surprises and makes it easier to adapt as new requirements emerge.

At Clarus Tax Technologies, we encourage businesses to stay informed, ask questions early, and evaluate how changing tax laws may affect their compliance processes before new requirements take effect.

Because state guidance may continue to develop before the January 1, 2027 effective date, businesses should consult their tax advisor and monitor updates from the California Department of Tax and Fee Administration.