Toyota, Stellantis, and Subaru Just Cut Off Tesla's Easy Money

Here's the mechanism, because it matters for understanding why this is happening. Under EU regulations, every automaker selling cars in Europe must meet fleet-wide CO2 emissions targets measured in grams per kilometer. Miss the target, and you face enormous fines — potentially hundreds of millions of euros. But the rules allow a workaround: you can form a "pool" with another manufacturer and average your combined fleet emissions together [1][2]. Tesla sells only battery-electric vehicles. Its fleet average is effectively zero grams of CO2. That makes Tesla the ideal pool partner for any automaker still selling a lot of internal combustion vehicles. In exchange for pulling down their combined average, those automakers pay Tesla — handsomely. This arrangement dates back to at least 2019, when Fiat-Chrysler (now part of Stellantis) signed a deal reportedly worth up to $2 billion to pool with Tesla. Honda, Jaguar Land Rover, and eventually Toyota all followed. By 2025, Tesla's European pool was the largest in the industry — a profit center that required zero additional manufacturing, zero marketing, and zero customer acquisition. It was, in a very real sense, free money [1].

Toyota: "We don't need you anymore"

Toyota's exit is the more significant of the two departures, and it tells a story about what happens when a legacy automaker finally gets its electrification house in order. For years, Toyota was the industry's most prominent EV skeptic. The company invested heavily in hydrogen fuel cells, maintained that hybrids were a superior transitional technology, and watched competitors pour billions into battery-electric platforms while it took a more cautious approach. Critics called it stubborn. Toyota called it pragmatic [2]. Whatever you call it, the strategy is now bearing fruit — at least from an emissions compliance standpoint. Toyota's European fleet has always been hybrid-heavy, which keeps its average CO2 output far below competitors like Stellantis or Ford. The company's 2025 EU target was 96.3 grams of CO2 per kilometer, and it's expected to hit that number almost exactly [2]. More importantly, Toyota's battery-electric lineup is expanding at pace. The bZ4X became the best-selling EV in Denmark in February 2026. The new Urban Cruiser is rolling into European showrooms. Toyota doesn't need to pay Tesla hundreds of millions of euros to make the math work anymore — it can make the math work on its own [2]. That's a significant shift. When a company moves from "we need to buy our way into compliance" to "we can comply independently," the financial relationship evaporates. Toyota didn't leave Tesla's pool because of a disagreement or a strategic pivot. It left because the pool became unnecessary.

Stellantis: the Leapmotor play

Stellantis has a different calculus, and it's arguably more interesting. Unlike Toyota, Stellantis didn't meet its 2025 CO2 target. It missed by roughly 6 grams per kilometer, according to Dataforce forecasts. That's not a trivial gap — without pooling, it would face substantial fines [2]. But Stellantis isn't going back to Tesla. Instead, it's forming its own pool with Leapmotor, the Chinese EV manufacturer in which Stellantis holds a 51% stake. Leapmotor delivered over 17,000 vehicles in Europe in Q4 2025 alone and will begin production at a Stellantis facility in Zaragoza, Spain, by the end of 2026. The plant is being adapted to produce up to 200,000 Leapmotor vehicles annually [1][2]. This is vertical integration meets regulatory arbitrage. Rather than paying a competitor to solve its emissions problem, Stellantis bought an EV company, gave it access to European manufacturing infrastructure, and is now using its sales to offset its own fleet average. The money that was flowing to Tesla now stays within the Stellantis corporate family. It's a template other automakers will study carefully. The message is clear: if you can't build enough EVs yourself, buy a company that can, and keep the regulatory credits in-house.

The transatlantic squeeze

Tesla's carbon credit headache isn't limited to Europe. In 2024, Tesla earned a record $2.76 billion globally from regulatory credit sales. That number dropped 28% in 2025, to approximately $2 billion. The primary cause: the United States eliminated its emission credit market entirely in 2025, a policy change that cost Tesla an estimated $1.4 billion in annual revenue overnight [1][3]. Europe was supposed to be the backstop. While the US market evaporated, European CO2 regulations were getting stricter, theoretically increasing demand for Tesla's pool partnerships. But then the European Commission moved in the opposite direction — granting automakers a three-year averaging period for emissions compliance from 2025 to 2027, which dramatically reduced the urgency to pool with Tesla in any given year [1][2]. So Tesla is now facing a pincer movement: the US market is gone, the European market is loosening, and individual automakers are finding ways to comply independently or through their own corporate structures. The regulatory credit revenue stream that peaked at $2.76 billion is on track to decline further in 2026, with no obvious floor in sight.

Why this matters for Tesla's bottom line

Here's why investors should pay attention: regulatory credits are Tesla's highest-margin revenue. Selling a car involves raw materials, manufacturing, labor, logistics, warranty obligations, and service infrastructure. The automotive business has real costs. Regulatory credits have essentially no cost of goods sold. Every dollar of credit revenue drops almost entirely to the bottom line [3]. In some quarters during Tesla's early profitability era, removing regulatory credit revenue would have turned the company's net income negative. The business has matured since then — Tesla now generates substantial operating profit from vehicle sales, energy storage, and services. But credits still contributed $595 million in a single quarter in 2025, representing 37% of quarterly profit. That's not a rounding error [3]. As this revenue stream contracts, Tesla needs to replace it with something. The obvious candidates are higher vehicle margins (difficult in a price-war environment), energy storage growth (promising but still scaling), and the long-anticipated Full Self-Driving revenue (perpetually "next year"). None of these are guaranteed to fill a multi-billion-dollar hole.

The December 1 asterisk

There's one important caveat buried in the EU regulatory framework: pool decisions don't have to be finalized until December 1 of each compliance year. If Toyota encounters unexpected problems meeting its targets — a popular high-emission model outselling projections, supply chain issues with its EVs — it could theoretically rejoin Tesla's pool mid-year. The same goes for Stellantis, if Leapmotor production ramps more slowly than planned [2]. But banking on this feels like hoping for bad weather. The structural dynamics point one direction: automakers are becoming more self-sufficient on emissions, the regulatory environment is getting more forgiving, and the pool that once included most of the industry's biggest names is down to four mid-tier manufacturers. Ford, Honda, Mazda, and Suzuki remain. But for how long? Ford is aggressively expanding its European EV lineup. Honda has committed to full electrification by 2040. These are companies on trajectories that eventually make Tesla's pool unnecessary for them, too.

The end of free money

Tesla has always been a company that generates revenue in ways traditional automakers don't. The Supercharger network, the energy storage business, the software-defined vehicle architecture — these are genuine innovations that create real value. Regulatory credits were different. They were a function of being the only game in town during the early years of electrification. Every dollar of credit revenue came directly from competitors' inability to build clean cars fast enough. As those competitors catch up — through their own EV programs, through acquisitions like Leapmotor, or through regulatory flexibility — the credit revenue disappears. It doesn't disappear because Tesla did anything wrong. It disappears because Tesla's original advantage — being the only company with zero-emission vehicles at scale — is no longer unique. Toyota builds EVs now. Stellantis owns a Chinese EV company. Ford has the Mustang Mach-E and the electric Explorer. The world caught up. For Tesla, that means the company's profitability increasingly depends on the things Elon Musk has always said it would depend on: vehicle sales, energy, autonomy, and AI. The training wheels of regulatory credit revenue are coming off. The question now is whether Tesla can ride without them.