Effective Duty Rate
AD/CVD circumvention duties (potential 25%–271%) + Section 201
Estimate — verify by HTS code
Compliance Risk
Very High
Relative to other import corridors
Regulatory Agencies
Commerce (AD/CVD), CBP, DOE, UL/NRTL
Primary oversight bodies
OVERVIEW
Importing Solar Panels, Photovoltaic Cells & Solar Equipment from Vietnam
Importing solar panels from Vietnam into the United States carries very high compliance risk, with an effective duty rate of AD/CVD circumvention duties (potential 25%–271%) + Section 201. Section 232 steel and aluminum tariffs (25% / 10%) apply to relevant solar panels sub-categories — verify your HTS code against current Section 232 annexes before entry. AD/CVD orders may apply to specific solar panels sub-categories — verify against CBP's ADD/CVD portal before importing.
Solar Panels imported from Vietnam to the United States is subject to CBP entry requirements, applicable HTS-based duty rates, and agency compliance clearances. This guide covers the complete import process for 2026.
⚠ Key Trade Intelligence — Vietnam Origin
Vietnam was the #1 solar exporter to the US until the AD/CVD circumvention investigation. Commerce found Chinese manufacturers circumvented orders through Vietnam. Circumvention duties of 25%–271% may apply. Major disruption to US solar supply chain.
SAMPLE LANDED COST — $50,000 SHIPMENT
Estimated Landed Cost: Solar Panels from Vietnam
Based on a representative $50,000 CIF shipment value. Actual costs vary by HTS code, entry type, and port of entry.
| Cost Component |
Amount |
Notes |
| Cargo Value (CIF) |
$50,000.00 |
Reference shipment value |
| MFN Base Duty (25.0%) |
$12,500.00 |
MFN column, Schedule B |
| Merchandise Processing Fee (0.3464%) |
$173.20 |
Min $31.67 / max $614.35 |
| Harbor Maintenance Fee (0.125%) |
$62.50 |
Ocean freight only |
| Total Duties & Fees |
$12,735.70 |
Effective rate: 25.5% |
| Estimated Landed Cost |
$62,735.70 |
Cargo + all US duties/fees |
⚠ Section 232 tariffs (25% steel / 10% aluminum) may apply to solar panels sub-categories with significant steel or aluminum content. Not included above — verify by specific HTS code.
Excludes freight, insurance, broker fees, warehousing, and AD/CVD duties. Use the Duty Calculator for a precise estimate on your specific shipment.
APPLICABLE HTS CODES
HTS Codes for Solar Panels Imports
The following Harmonized Tariff Schedule (HTS) codes typically apply to solar panels imports. Exact classification depends on the specific product — misclassification is one of the most common CBP compliance errors.
| HTS Code |
Product Description |
MFN Base Duty Rate |
| 8541.40 |
Photovoltaic Cells & Modules (crystalline silicon) |
0% MFN + Section 201 Safeguard |
| 8501.31–8501.34 |
Solar DC Generators & Inverters |
0%–2.5% MFN |
| 8541.40.60 |
Thin-Film Solar Cells (CdTe, CIGS, a-Si) |
0% MFN + Section 201 |
| 7610 |
Aluminum Solar Panel Mounting Structures |
2.8%–6.5% MFN + 10% Sec. 232 |
| 8507.60 |
Lithium-Ion Solar Storage Batteries |
3.4% MFN |
MFN rates reflect base tariff. Additional duties (Section 301, Section 232, AD/CVD) may apply on top of MFN rates. Use the AI classifier to get the exact 10-digit HTS code and all applicable rates for your specific product.
DUTY STACK — VIETNAM ORIGIN
Total Tariff Cost for Vietnam-Origin Solar Panels
| Duty Layer |
Rate / Status |
Applies To |
| MFN Base Rate |
Varies by HTS code |
All Vietnam-origin goods (baseline) |
| Section 301 |
Not applicable |
Vietnam-origin goods are not subject to Section 301 |
| Section 232 (Steel/Aluminum) |
25% steel / 10% aluminum |
Steel and aluminum imports from Vietnam |
COMPLIANCE — Commerce (AD/CVD) / CBP / DOE / UL/NRTL
US Compliance Requirements for Solar Panels Imports
Regardless of origin country, solar panels imports must satisfy the following US regulatory requirements before or at the time of CBP entry filing:
- Section 201 Safeguard Tariff on crystalline silicon photovoltaic (CSPV) cells and modules — additional tariff declining annually through 2026; first 5 GW of cells exempted
- AD/CVD orders on solar cells and modules from China and countries where Chinese manufacturers have operations (Malaysia, Thailand, Vietnam, Cambodia)
- UL 61730 (IEC 61730) or UL 1703 safety certification required for solar modules sold and installed in the US market
- UFLPA (Uyghur Forced Labor Prevention Act) enforcement — CBP Withhold Release Orders on polysilicon and solar products with Xinjiang supply chain connections
Compliance Check Tool
Run an automated compliance check for your solar panels import — identifies all applicable agency requirements, flagging issues before your shipment departs Vietnam.
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REQUIRED DOCUMENTS
Documentation Checklist for Solar Panels from Vietnam
Prepare all documents before the shipment departs Vietnam. Missing or incorrect documents are the #1 cause of CBP holds and customs delays.
1
Commercial Invoice with cell/module origin, wattage, and technology type
4
Country of Origin Declaration with cell-level origin tracing (critical for AD/CVD and circumvention)
5
UL 61730 or UL 1703 safety certification
6
UFLPA supply chain documentation (polysilicon sourcing, bill of materials tracing)
ESTIMATED TIMELINE
Import Timeline — Solar Panels from Vietnam
25–45 days (ocean freight); 5–10 days (air for urgent/small shipments)
Supplier Preparation
Allow 1–2 weeks for production documentation, certificates, and packing lists
Transit Time
18–35 days ocean from Asia/origin
CBP Clearance
1–3 days standard; 5–15 days if examination or AD/CVD review required
FREQUENTLY ASKED QUESTIONS
FAQs — Importing Solar Panels from Vietnam
What is the effective US tariff rate for importing solar panels from Vietnam?
The effective US tariff rate for solar panels from Vietnam is: AD/CVD circumvention duties (potential 25%–271%) + Section 201. Vietnam was the #1 solar exporter to the US until the AD/CVD circumvention investigation. Commerce found Chinese manufacturers circumvented orders through Vietnam. Circumvention duties of 25%–271% may apply. Major disruption to US solar supply chain.
What compliance agencies regulate solar panels imports from Vietnam?
Solar Panels imports require compliance with: Commerce (AD/CVD), CBP, DOE, UL/NRTL. Specific requirements include: Section 201 Safeguard Tariff on crystalline silicon photovoltaic (CSPV) cells and modules — additional tariff declining annually through 2026; first 5 GW of cells exempted and AD/CVD orders on solar cells and modules from China and countries where Chinese manufacturers have operations (Malaysia, Thailand, Vietnam, Cambodia).
What documents are required to import solar panels from Vietnam?
Required documents include: Commercial Invoice with cell/module origin, wattage, and technology type; Packing List; Bill of Lading; Country of Origin Declaration with cell-level origin tracing (critical for AD/CVD and circumvention). Additional: UL 61730 or UL 1703 safety certification; UFLPA supply chain documentation (polysilicon sourcing, bill of materials tracing). Ensure all documents are prepared before the shipment departs Vietnam.
How long does customs clearance take for solar panels from Vietnam?
Typical timeline: 25–45 days (ocean freight); 5–10 days (air for urgent/small shipments). CBP clearance typically takes 1–3 business days for compliant entries. Complex entries (AD/CVD, formal entry review, or examination) may require 5–15 additional business days.
Are there Section 301 or Section 232 tariffs on solar panels from Vietnam?
No Section 301 tariffs apply to Vietnam-origin goods. Section 232 applies: 25% on steel and 10% on aluminum products from Vietnam.
What Section 201 safeguard tariffs and AD/CVD orders apply to solar panel imports?
Solar panels face multiple layered trade remedies: Section 201 safeguard tariffs (25% in year 1, declining annually) have been applied to crystalline silicon photovoltaic (CSPV) cells and modules. In parallel, AD/CVD orders target Chinese-origin solar cells and modules (as low as Chinese cells assembled in other countries) — Case A-570-979 and C-570-980 imposed rates of 14.78%–240% AD plus 11.45%–15.97% CVD. The Uyghur Forced Labor Prevention Act (UFLPA) further scrutinizes polysilicon sourced from Xinjiang. Verify your specific panel's origin documentation carefully before importing.
How does the UFLPA affect solar panel imports and what documentation is required?
UFLPA creates a rebuttable presumption that solar panels with polysilicon from Xinjiang, China, are made with forced labor and are prohibited from entry. CBP has detained thousands of solar panel shipments. To rebut the presumption, importers must submit: complete supply chain documentation tracing polysilicon from mine to finished module, third-party audit reports, supplier attestations, bills of materials, and material safety data. CBP's UFLPA Entity List names specific Xinjiang polysilicon producers. If your solar supply chain cannot be traced to non-Xinjiang polysilicon sources, importation will be blocked.
What UL certifications and NEC code requirements apply to imported solar panels?
Solar panels (PV modules) must meet UL 61730 (photovoltaic module safety qualification) or equivalent IEC 61730 certification for US market entry. Inverters require UL 1741 listing. Installations must comply with National Electrical Code (NEC) Article 690. Many US utilities and installers require that panels bear the UL mark — verify the UL certification of the specific module before purchase. IEEE 1547 governs interconnection standards. State-level rebate programs (ITC, state incentives) may require additional documentation of panel provenance and efficiency ratings.
Does Vietnam have a free trade agreement with the United States?
No. The US and Vietnam do not have a bilateral FTA as of 2026. TPP, which would have provided preferential access, was withdrawn by the US in 2017. IPEF (Indo-Pacific Economic Framework) includes Vietnam but does not provide tariff preferences. Vietnamese-origin goods pay standard MFN rates, which are high for textiles (17%–32%) and some manufactured goods.
Why is Vietnam a popular sourcing alternative despite high MFN tariff rates?
Vietnam's manufacturing costs are significantly lower than China's, and Vietnamese-origin goods face no Section 301 tariffs. Even at 17%–30% MFN for textiles, total landed costs from Vietnam are competitive with China's effective rates (often 35%–55% including Section 301). Vietnam is now the #2 apparel and electronics exporter to the US as supply chains diversify away from China.
What anti-circumvention risks should I be aware of when sourcing from Vietnam?
CBP actively investigates circumvention — cases where Chinese goods undergo minor processing in Vietnam to re-export under Vietnamese origin and avoid Section 301 tariffs. CBP requires genuine substantial transformation: a change of character, name, and use that would not be achieved by simple assembly, re-labeling, or minor finishing. Maintain full bills of materials and production records to defend origin claims under CBP scrutiny.
TRADE INTELLIGENCE TOOLS
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Import duty rates are sourced from the USITC Harmonized Tariff Schedule and USTR Section 301 lists. Rates reflect current published schedules as of 2026-05-16 and are subject to change. This page is for informational purposes only and does not constitute legal or customs brokerage advice. Verify rates with a licensed customs broker before importing.