1.74 Million: Tesla's FSD Count Hinges on Legacy Buyers

The central tension in Tesla’s latest shareholder report lies in a single metric: the number of active Full Self-Driving (FSD) subscriptions. The company announced it has reached 1.74 million active users, a 67% increase from the same period last year. However, this figure relies on a definition that blends current monthly subscribers with owners who purchased the software outright years ago. This accounting method is not arbitrary; it was specifically designed to satisfy the operational milestones required for Elon Musk’s 2025 performance-based pay package.

The discrepancy matters because hitting 10 million active FSD subscriptions is a critical condition for the CEO to earn his compensation. By counting upfront purchasers as “subscribers,” Tesla inflates its user base, creating a narrative of rapid growth. This approach is significant because hundreds of thousands of these counted users were originally sold the promise of unsupervised self-driving, a capability Tesla has yet to fully deliver. Instead, they remain part of the active count for a service that still requires human supervision.

Tessla stopped selling FSD as a one-time purchase on February 14, 2026. Since then, new customers in the United States can only access the software through a monthly subscription model priced at $99. Nevertheless, any owner who paid the upfront fee—prices for which reached as high as $15,000—remains included in the 1.74 million total as long as their vehicle is active. The only individuals excluded from this count are those currently using free trial periods.

This methodology was first highlighted in April when Tesla reported 1.28 million users under this definition. Six months later, the company has not clarified how many of the current 1.74 million users are actually paying the monthly fee. The same accounting logic appears in other parts of the report. Tesla’s cumulative deliveries figure, now standing at 10.2 million, also includes unsupervised Robotaxis placed into commercial operation. This inclusion aligns with another milestone in the pay package, which targets 20 million total vehicles delivered.

Additionally, Tesla claims that more than 75% of new deliveries in North America included FSD subscriptions during the third quarter. The company describes this as a nearly twenty percentage point sequential increase and suggests that FSD is driving demand in markets where it is available. While this is a substantial statistic, the definition is not fully specified in the letter. It is unclear whether this figure includes subscriptions initiated with introductory offers or how many of those buyers continue paying after the initial period. Unlike the active-subscription metric, the attach rate does not explicitly exclude free trials.

Musk’s 2025 award consists of 12 tranches, each requiring both a market capitalization milestone and an operational achievement. The operational list includes 20 million vehicles delivered, 10 million active FSD subscriptions, 1 million Optimus robots, 1 million robotaxis in commercial operation, and specific adjusted EBITDA targets. As of June 30, Tesla considered only the 20 million delivery milestone to be probable.

In the third quarter, Tesla added 260,000 net FSD subscriptions, marking its best quarter to date. If the company maintains this pace, it would take approximately eight years to reach the 10 million milestone. However, at the pace of the last 12 months, which averaged about 700,000 new subscriptions annually, the timeline extends to nearly 12 years. The compensation award remains valid until 2035.

Counting upfront buyers is not inherently incorrect, as those vehicles do possess the software. The issue arises from labeling them “subscribers” and presenting the aggregate as evidence of momentum, when the definition was crafted to satisfy compensation requirements rather than to provide investors with a clear view of the business. The board established the definition, the CEO’s pay depends on it, and the company has not disclosed how many users are currently paying the monthly fee.

The 75% attach rate is a notable claim if it proves durable. A 75% take rate for a $99 monthly product would represent a significant business. Investors are likely to seek retention data, specifically how many North American buyers who started subscriptions in the second quarter are still paying today. This transparency will be crucial in understanding the true strength of Tesla’s software business.

Looking ahead, the focus will remain on whether Tesla can sustain its subscription growth rates. The company’s ability to convert the high attach rate into long-term monthly revenue will determine if the 10 million milestone is a realistic target within the decade. For now, the 1.74 million figure stands as a testament to a counting method that favors the compensation structure over strict subscription definitions.