Solar Inverter (Grid-Tie / Off-Grid) — HS Code
Static converters — solar inverters converting DC to AC

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HS Code
8504 — Electrical transformers, static converters and inductors
Classification Context
Chapter
Chapter 85 — Electrical machinery and equipment
Heading
8504 — Electrical transformers, static converters and inductors
Applicable Rule
GRI 1 — solar inverters are static converters (DC to AC) under 8504.40
Prior Rulings
EU — EBTI (Binding Tariff Information)
Search EU EBTI databaseUS — CBP CROSS Ruling Database
Search US CBP CROSS rulingsUK — HMRC Trade Tariff
View UK Trade Tariff commodityClassification Notes
Solar inverters (string inverters, microinverters, and hybrid/multi-mode inverters) are classified under 8504.40 as static converters. A hybrid inverter with integrated battery management system (BMS) and EPS (emergency power supply) function is still 8504.40 — the primary function is DC-AC power conversion. MPPT charge controllers (Maximum Power Point Tracking units managing battery charging from solar panels) are also 8504.40. Grid-tied inverters with reactive power control and anti-islanding protection are 8504.40. Anti-dumping duties: the EU and US have both investigated Chinese-origin inverters — check TARIC and USITC ADD orders. UL 1741 (US) and EN 62109 (EU/UK) certifications are required for grid-connected installations.
MFN Duty Rates by Market
European Union
8504.40.55
EU Combined Nomenclature (CN) rate — applies to all 27 EU member states
United States
8504.40.55
US Harmonized Tariff Schedule (HTS) MFN rate — Section 301 tariffs may add to China-origin goods
United Kingdom
8504.40.55
UK Global Tariff (UKGT) — post-Brexit tariff schedule, independent of EU CN
Official Sources & References
WCO HS Nomenclature
World Customs Organisation — the international standard behind all HS codes
wcoomd.org
EU TARIC Database
European Commission integrated tariff — EU Combined Nomenclature (CN) rates
ec.europa.eu
US HTS Schedule (USITC)
United States International Trade Commission — official US Harmonized Tariff Schedule
hts.usitc.gov
UK Global Tariff (HMRC)
His Majesty's Revenue and Customs — UK Trade Tariff post-Brexit
trade-tariff.service.gov.uk
Disclaimer: Duty rates shown are MFN (Most-Favoured-Nation) base rates sourced from live tariff database and verified April 2026. Actual duties may differ based on country of origin, applicable trade agreements (e.g. GSP, CETA, UK-EU TCA), anti-dumping measures, or changes to tariff schedules. Always verify with the official tariff database of the importing country before making customs declarations.
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