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The Commerce Department just confirmed the next round of solar panel tariffs the industry has been bracing for since spring: steep antidumping and countervailing duties on cells from India, Indonesia, and Laos, with countervailing rates on some Indonesian shipments running as high as 173.70%. One step remains before any of it takes effect: a U.S. International Trade Commission vote on October 14.
This is a live trade case, not a settled one. The rates below come from Commerce's final determination and the ITC's public docket, not from secondhand reporting. Anywhere we're offering our own read on what happens next rather than a documented fact, we'll say so, and we'll update this piece if the October 14 vote changes the picture.
Solar Panel Tariffs in 2026: How Much Will It Cost to Go Solar Now?Key takeaways
- The rates are in, and they're steep. Commerce set final antidumping duties of 123.04% (India), 94.36% (Indonesia), and 65.43% (Laos), on top of separate countervailing duties that run as high as 126.09%, 173.70%, and 153.67%.
- Nothing has been collected yet. These become permanent duty orders only if the ITC finds that the dumped and subsidized imports caused material injury to U.S. manufacturers, in a vote scheduled for October 14, 2026.
- A "yes" vote moves fast. Federal law requires Commerce to publish the formal orders within about a week of an affirmative ITC finding, so an October 14 vote could mean full duties on every entry before Thanksgiving.
- This closes a loophole; it doesn't open a new front. India, Indonesia, and Laos picked up demand that shifted away from Southeast Asia after the 2025 case against Cambodia, Malaysia, Thailand, and Vietnam. That gap is exactly what this new case targets.
How Big Are These Solar Panel Tariffs, Really?
AD vs. CVD
Antidumping duties punish selling below fair value; countervailing duties offset government subsidies like cheap loans or tax breaks. Commerce sets both per producer, which is why the ranges above vary so much.
Commerce runs two separate calculations here, and both apply. Antidumping (AD) duties punish selling below fair value; countervailing (CVD) duties offset government subsidies. A shipment can owe both at once, and in this case, all three countries do:
Because AD and CVD stack, importers of these cells are looking at effective rates well past 100%, and in Indonesia's case, comfortably past 200% once both duties land on the same shipment. That's a number big enough to make sourcing from these three countries a non-starter for U.S. module assemblers, no matter how the October vote goes.
Why October 14 Is the Date That Actually Matters
If you're mid-quote right now: a signed contract doesn't freeze the tariff exposure on panels that haven't shipped yet. If your installer sourced from India, Indonesia, or Laos, ask directly. This week, not after the vote.
Commerce's determination only answers half the legal question. The other half belongs to the U.S. International Trade Commission, which has to separately find that these imports caused "material injury" to U.S. solar manufacturers before any duty order becomes permanent. That vote, covering Investigation Nos. 701-TA-772-774 and 731-TA-1756-1758, is scheduled for October 14, 2026.
If the Commission votes no, the case ends and importers get back the cash deposits they've been posting since the preliminary determinations earlier this year. If it votes yes, Commerce issues the formal antidumping and countervailing duty orders, and the rates in the table above stop being a proposal and start being a bill.
This Is the Third Wave, Not the First
Solar tariffs on Asian manufacturing aren't new, and this case didn't come out of nowhere. Commerce ran the same playbook against Cambodia, Malaysia, Thailand, and Vietnam in 2025; duties on that group, some of them well into triple digits, took effect that June. We covered what that meant for pricing when the resulting price floor rules kicked in.
What's different this time is who's in the crosshairs. India, Indonesia, and Laos weren't the original targets. They became major U.S. suppliers partly because they weren't covered by the 2025 case, and buyers who shifted sourcing there to dodge that round of duties are now the ones facing this one. Same pattern, second time around, different flags on the paperwork.
Both waves have stayed narrowly focused on cells and modules. Neither solar batteries nor hybrid inverters show up in either case, so storage and inverter budgets aren't where the pressure is building. That's still panels, both times.
Solar panel costs in 2026: Prices & savingsBuy Now or Wait for the Vote?
If you're shopping this fall, whether solar panel prices actually move for you depends on what you're buying and from where. A lot of best-selling residential brands aren't touched by this case at all. Qcells, REC, Silfab, and others manufacture in the U.S. or in countries this case doesn't name, so browsing solar panels from those makers is safe to do on your own timeline.
Where it gets real is inventory that was sourced from the three named countries before this determination landed. That stock doesn't get more expensive retroactively. It's why clearance panels are worth a look right now: pre-tariff pricing on pre-tariff stock, while it lasts. Installers buying in volume should also check wholesale pricing before October 14, since a "yes" vote will reprice new pallets fast.
Alina has always been drawn to the intersection of technology and everyday life. Joining A1 SolarStore as a contributing writer, she brings fresh curiosity and a researcher's eye to the topics of clean energy and sustainability.
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