California Proposes Sales Tax Expansion to Prewritten Software

  • By Sean Lo
    • Jun 12, 2026
    • read
  • Twitter
  • Linkedin
california sales tax

The Governor of California has proposed extending the state’s sales and use tax to prewritten (canned) software, regardless of how it is delivered. If enacted, the change would take effect January 1, 2027.

Currently, California’s sales tax applies only to prewritten software sold on tangible media. Software that is downloaded or accessed remotely (SaaS) is not taxed. Under the proposal, all retail sales of prewritten software would be taxable, regardless of how it is delivered. Custom software would remain exempt.

Key Considerations for Software Businesses

  • New collection obligations: If you sell downloadable software or SaaS subscriptions to California customers, you may be required to collect and remit California sales tax for the first time starting January 1, 2027.
  • Business-to-business purchases: A large share of newly taxed transactions would likely be business-to-business sales, which can raise costs for consumers indirectly and create economic inefficiencies.
  • Other digital products not covered: The proposal focuses on software only, leaving other digital products outside the new tax base

Given the influence of California on the tech industry, software businesses should monitor this sales tax expansion proposal closely. As this could significantly impact their collection obligations starting in 2027.

Nothing is final, and the proposal may change during the legislative process. Given California’s size and influence, software businesses should keep this on their radar.

To learn more, visit the California Legislative Analyst’s Office.

Author

Sean Lo

State and Local Tax Consultant

Reach out to an expert

Explore our latest insights

See more arrow_forward
State Income Tax
Could Congress Modernize State Income Tax Rules for the Digita...

Businesses that sell across state lines rely on Public Law 86-272 to figure out whether a state c...

commercial farmer registration
Louisiana Issues Guidance on Commercial Farmer Registration

Louisiana has issued updated guidance outlining how commercial farmers and agricultural manufactu...

Sales Tax Exemption
Don’t Get Caught Off Guard: Keep Your Sales Tax Exemptio...

Businesses operating in the United States should understand the sales and use tax compl...

assembly VAT
Supply, Assembly & Installation in the EU: Could be costin...

If your business sells machinery, equipment or other goods that require installation or assembly ...