加州擬對 SaaS、雲端訂閱課稅，AI 新創、Microsoft、Salesforce 首當其衝

California Governor Newsom proposes expanding the current retail sales tax to include SaaS and cloud subscription services, expected to generate $2 billion in annual tax revenue. This move will directly affect tech giants such as Microsoft, Salesforce, Oracle, and the rapidly growing AI software industry.
(Background: Trump’s Q1 stock purchases revealed》a $750 million frenzy sweeping NVIDIA and Apple, big sales on Microsoft, Amazon, Meta)
(Additional context: OpenAI reportedly plans to sue Apple for “breach of contract”! Furious that the Siri integration with ChatGPT has fallen short and that billion-dollar subscriptions failed to materialize)

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• A long-delayed “patch” for a “vulnerability”
• The AI software industry faces dual contradictions
• Policy risks in the tech industry are materializing

According to Bloomberg, California Governor Gavin Newsom officially proposed in the May 14 annual May budget revision to expand California’s current 7.25% retail sales tax to “prewritten digital software,” covering services such as SaaS subscriptions and cloud software.

If the California legislature formally passes it, this tax regime will take effect on January 1, 2027.

A long-delayed “patch” for a “vulnerability”

Governor Newsom admits that he “was too slow to realize” the reality of this asymmetric tax setup: software purchased in physical stores requires paying a 7.25% sales tax, but when purchasing online or subscribing to cloud services, consumers do not have to pay tax. After the acceleration of digital transformation, this logical contradiction has become even more apparent, and the decision by the California government to plug this gap at this time is driven by real fiscal pressure.

According to the budget documents from Newsom’s office, this tax reform is expected to bring about $1.1 billion in tax revenue in total for state and local governments in the 2026-27 fiscal year (the first year). Of this, the state general fund can receive $450 million. Starting from the second year, annual tax revenue will reach $2 billion, and the state general fund’s annual income will be about $900 million.

Bloomberg also points out that California is not an exception. Currently, 35 states across the U.S. tax digital prewritten software, and 24 states have already imposed sales tax on SaaS services. From this perspective, California’s move looks more like catching up with a tax collection trend that has already taken shape in most areas nationwide.

The AI software industry faces dual contradictions

The most directly affected companies include major software vendors such as Microsoft, Salesforce, Oracle, and others that have significant operations or headquarters in California.

These companies’ SaaS products—from Microsoft 365 and Azure cloud services to Salesforce CRM platforms—meet the definition of “prewritten digital software.” If the tax regime is implemented, subscription costs for California customers would rise accordingly, or software providers may absorb part of the tax burden themselves.

However, a deeper contradiction lies within the AI software industry itself. In recent years, California has enjoyed rapid growth in enterprise taxes and payroll taxes fueled by the AI boom. The expansion of AI companies such as Anthropic, OpenAI, and Google DeepMind has directly boosted California’s tax base.

Now, these companies and their customers may also soon be required to pay more than an additional 10% in tax when purchasing AI software subscription services.

From the legislative pathway, this case still needs to be reviewed and passed by the California legislature, and the process is expected to face strong backlash from Silicon Valley’s tech lobbying forces.

Policy risks in the tech industry are materializing

The timing of this proposal is intriguing: it comes as the AI investment boom has not yet cooled down and major tech companies continue to expand. California’s decision to levy a new tax on software services that drive this wave means that a new policy variable is moving from the draft stage toward legislative reality for tech companies with deep operations in California.

For companies such as Microsoft and Salesforce, the direct impact will be reflected in the procurement costs of their enterprise customers, and it may also trigger renegotiations of contracts or adjustments to pricing strategies. For AI software startups, if this tax regime is passed, it will add another layer of pricing pressure in an already intensely competitive market.

In terms of the tax design, it targets “prewritten” software; customized development services are currently not included in the scope of taxation. But the essence of the SaaS business model—standardized and scalable—precisely makes it the most difficult category to avoid taxation, and AI subscription schemes also fall within this scope.