Tax Credit Turmoil: Why Enphase and SolarEdge Face a Tough Road

Key Points

• The expiration of the 30% homeowner solar tax credit at the end of 2025 triggered a demand pull-forward and sharp 2026 sales declines for Enphase and SolarEdge.
• Enphase faces a straightforward policy hangover with falling revenue and workforce cuts, while SolarEdge is unwinding a speculative rally driven by inverter ban rumors rather than fundamentals.
• New polysilicon tariffs taking effect Dec. 4 and persistently high interest rates add further cost and financing pressure on both residential-focused solar companies.

Solar stocks have been in a multi-year downtrend, and U.S. policy decisions have deepened it. The Trump administration's tax overhaul ended the 30% homeowner tax credit (Section 25D) at the end of 2025, years ahead of schedule.

That created a pull-forward effect, as seen in the earnings reports of companies like Enphase Energy NASDAQ: ENPH and SolarEdge Technologies NASDAQ: SEDG. Homeowners rushed to install systems before the credit vanished. Predictably, demand has dropped sharply in 2026.

But the two stocks tell different stories. Enphase is working through a textbook policy hangover. SolarEdge is unwinding a speculative rally that got ahead of its fundamentals. New polysilicon tariffs and stubborn interest rates add pressure to both.

The broader solar narrative doesn't help them much. Power demand from AI data centers is a genuine tailwind. But it mostly flows to utility-scale developers and domestic panel makers. Enphase and SolarEdge sell mostly to residential consumers. Their end customers are homeowners who respond to tax credits and loan rates.

For investors, the distinction matters. One stock is priced for a slow recovery. The other was priced for a recovery that hasn't arrived.

Enphase: A Textbook Pull-Forward

Enphase's numbers clearly show the impact of the 25D cycle. In the fourth quarter of 2025, sell-through jumped 21% from the prior quarter as homeowners raced against the deadline.

The hangover came fast. First-quarter 2026 revenue fell 20.6% year over year to $282.9 million. Sell-through dropped 48% sequentially. The company cut about 6% of its workforce, roughly 160 jobs, citing the credit's expiration.

Management called Q1 the bottom, but that call has only partly held. Q2 revenue edged up to $291.9 million but was still down about 20% from a year earlier. TD Cowen noted that spring permit data showed no typical seasonal pickup. The firm projects a roughly 19% sales decline for 2026.

There's another wrinkle. Enphase's Q3 guidance of $290 million to $320 million includes about $75 million in safe harbor revenue. Those sales help customers lock in eligibility for remaining credits. In other words, part of the current quarter is its own form of pull-forward.

The good news: Enphase still makes money. Non-GAAP gross margin reached 46.8% in Q2, helped by tariff refunds. Its microinverters are built in Texas and South Carolina, which qualify for domestic manufacturing credits.

Analysts aren’t especially bullish on ENPH: it has an overall Hold rating, with three Sell ratings among the 23 analysts tracked by MarketBeat, and a consensus price target of $43.84.

SolarEdge: The Rally That Got Ahead of Itself

SolarEdge is harder to explain with the tax credit alone. Management said its second quarter saw no significant pull-forward from the 25D deadline or safe harbor activity.

The real story is a round trip. In late June, shares surged on reports that Washington could ban foreign-made inverters. As a non-Chinese supplier, SolarEdge looked like a winner. The stock closed at a 52-week high of $81.25. GLJ Research countered that the pop was "mostly air."

Then came the Q2 earnings report. On paper, the quarter was strong. Revenue rose 20% to $346.2 million. SolarEdge posted its first non-GAAP operating profit since mid-2023.

But third-quarter guidance of $310 million to $340 million fell well short of the roughly $371 million analysts expected. The midpoint implied a sequential decline. Shares fell roughly 25% in a single session.

The beat also looks thinner up close. The 28.6% non-GAAP gross margin included a $13.3 million tariff refund. On a GAAP basis, SolarEdge still lost 50 cents per share.

Deutsche Bank added pressure this month. Analyst Corinne Blanchard issued a short-term "Catalyst Call: Sell" while keeping a Hold rating and $34 target. She cited elevated interest rates weighing on U.S. demand. Her revenue estimates sit about 2% below consensus for Q4 and 5% below for 2027.

Here's the context most headlines miss. Even near $30 after the August sell-off, SolarEdge is still up about 7% for the year. The steep decline is measured from a policy-fueled spike, not from where 2026 began.

Tariffs and Rates: Pressure on the Whole Chain

Both companies face a new cost layer. On Dec. 4, a 15% duty and import price floors take effect on polysilicon, cells, and modules. The 38-cent-per-watt module floor sits about 40% above recent U.S. import prices.

Neither company makes panels, so the hit is indirect. But pricier panels raise the cost of every rooftop system. Without the 30% credit to cushion it, financing matters more. High rates make monthly payments harder to justify.

Same Sector, Different Stories

The market trades Enphase and SolarEdge as one story. They aren't. Enphase is a profitable company in a cyclical trough, with near-term guidance padded by safe harbor sales. SolarEdge is a turnaround with improving margins, but its stock priced in too much optimism too early.

For Enphase, the question is when organic U.S. residential demand returns. For SolarEdge, it's whether Europe and U.S. commercial growth can offset a soft home market. Until third-quarter reports arrive, both stocks will likely trade on sentiment more than results.