HS 850440 Static converters
Quick Answer: Static converters imported under HS 850440 enter the UK duty-free, the EU duty-free, and the US at rates ranging from 0.00% to 35% ad valorem. This HS code encompasses electrical apparatus for the conversion of electric power, such as AC to DC converters (rectifiers), DC to AC converters (inverters), and DC to DC converters. These devices are crucial for adapting electrical energy between different voltage and current types, commonly found in power supplies for electronics, renewable energy systems, and electric vehicles. Importers should carefully consult specific tariff lines within 850440 for precise duty rates and potential trade restrictions in each jurisdiction. CustomTariffs aggregates this data, highlighting the need for thorough classification and rate verification.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 8504400000 | — | — | — |
| 8504406000 | — | — | — |
| 8504408390 | 0.00 % | — | — |
| 8504406010 | 0.00 % | — | — |
| 8504406090 | 0.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 8504400000 | — | — | — |
| 8504406000 | — | — | — |
| 8504406010 | — | — | — |
| 8504406090 | 0.00 % | — | — |
| 8504408300 | — | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 85044060 | Free | — | — |
| 8504406001 | — | — | ["No."] |
| 8504407001 | — | — | ["No."] |
| 8504407007 | — | — | ["No."] |
| 8504407018 | — | — | ["No."] |
Duty rates sourced from the USITC (US International Trade Commission) Harmonized Tariff Schedule (HTS) (accessed 2/22/2026), EU TARIC – DG TAXUD (Directorate-General for Taxation and Customs Union) (accessed 2/22/2026), and UK Trade Tariff – HMRC (His Majesty's Revenue and Customs) (accessed 2/22/2026).
Data compiled and presented by HSRates.
How Has Trade Volume Developed?
Trade Volume 2023
How to Classify This HS Code?
What products does HS 850440 cover?
This subheading covers static converters, which are electrical apparatus that convert direct current (DC) to alternating current (AC) or vice versa, or that convert DC to DC. According to the World Customs Organization (WCO) Harmonized System Explanatory Notes and definitions found in the USITC Harmonized Tariff Schedule (HTS) and the EU TARIC database, this category includes devices like inverters, rectifiers, and DC-to-DC converters, essential for power management in various electronic systems and renewable energy applications, typically operating at voltages not exceeding 1,000 volts.
What falls outside HS 850440?
The following products are excluded from HS 850440: motor-generator sets (classified under HS 8501), which use a motor to drive a generator; transformers (HS 850430) that only change voltage or current without altering the type of current; and complete electrical sets and units designed for specific applications, such as uninterruptible power supplies (UPS) that may incorporate static converters but are classified as complete units under their respective headings (e.g., HS 8507 for batteries with UPS functionality). Devices primarily functioning as chargers, even if they involve conversion, may also fall under different headings.
What are common classification mistakes for HS 850440?
A common error is misclassifying devices that perform multiple functions. For example, a UPS system that includes a static converter but whose primary function is to provide backup power is typically classified as a complete unit under HS 8507, not solely as a static converter. Another mistake involves confusing static converters with transformers (HS 850430), which only change voltage or current without changing the type of current. Adherence to General Interpretative Rule 3(b) for composite goods or goods put up for retail sale is crucial.
How should importers classify products under HS 850440?
The correct procedure for classifying products under HS 850440 involves a thorough examination of the product's primary function and technical specifications. Importers and customs brokers must consult the official tariff schedule of the importing country, such as the USITC HTS or the EU TARIC, and review the WCO Explanatory Notes. Key considerations include whether the device converts DC to AC, AC to DC, or DC to DC, and its operating voltage. If the product is part of a larger system, its principal function must be determined.
How is the duty calculated for products under HS 850440?
A 500-watt solar power inverter, declared at a customs value of $200 USD, would attract a US duty of $10.00. This is calculated using the Most Favored Nation (MFN) duty rate of 5.0% ad valorem, applied to the declared customs value ($200 USD × 0.05 = $10.00). This calculation is based on the duty rate published in the USITC Harmonized Tariff Schedule for HS code 8504.40.9500, which covers static converters.
Which trade agreements reduce duties for HS 850440?
Several free trade agreements may reduce the applicable duty rate for HS 850440, including the United States-Mexico-Canada Agreement (USMCA), which can result in a duty rate of Free for originating goods from Canada and Mexico. The Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP) may also offer preferential rates for originating goods from member countries. To claim these preferences, a self-certified origin statement for USMCA or a specific origin declaration for CPTPP is typically required, depending on the origin country and the specific agreement's rules.
```Which HS Codes Are Related?
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FAQ
What are the typical import duty rates for HS code 850440 (Static converters) into the United States?
For static converters classified under HS code 850440, the U.S. Most Favored Nation (MFN) duty rate is 0.00%. This means that generally, no duty is applied to these goods when imported into the U.S. from countries that receive MFN status. It is crucial to verify the specific country of origin, as preferential rates under Free Trade Agreements (FTAs) or other trade programs may apply, potentially leading to different duty outcomes or specific entry requirements. Always consult the U.S. International Trade Commission (USITC) Harmonized Tariff Schedule (HTS) for the most current and definitive duty information.
How is the import duty for a static converter calculated under HS code 850440, using a hypothetical example?
The duty calculation depends on the specific duty rate applied. For HS code 850440, if a duty rate were applicable (e.g., hypothetically, 3.5% ad valorem), the calculation would be based on the declared customs value of the goods. For instance, if a shipment of static converters has a declared customs value of $10,000, and the applicable duty rate is 3.5% ad valorem, the duty amount would be calculated as: $10,000 (Customs Value) × 0.035 (Duty Rate) = $350.00. Since the MFN duty rate for this code in the U.S. is 0.00%, the duty payable in this common scenario is $0.00.
What are the key classification criteria for goods to be classified under HS code 850440 (Static converters)?
HS code 850440 specifically covers 'Static converters'. This category includes devices that convert DC power to AC power (inverters) or AC power to DC power (rectifiers), or change the frequency or voltage of AC power, without the use of rotating machinery. Key classification criteria include the device's function (power conversion), its static (non-rotating) nature, and its primary use in electrical power supply. Devices that perform other primary functions, such as voltage regulation alone or signal conversion, may fall under different HS codes. Referencing the Explanatory Notes to the Harmonized System (WCO) provides detailed guidance on the scope of this heading.
Are there specific documentation requirements for importing static converters (HS 850440) into the European Union?
When importing static converters (HS 850440) into the European Union, standard customs documentation is required, including a commercial invoice, packing list, and bill of lading/air waybill. Depending on the origin of the goods and any applicable trade agreements (e.g., with countries having an EU Free Trade Agreement), a proof of origin, such as an EUR.1 certificate or a declaration on an invoice, may be necessary to claim preferential duty rates. Importers should also ensure compliance with any relevant EU directives and regulations concerning electrical safety and electromagnetic compatibility (EMC), which might necessitate specific product certifications or declarations of conformity. The EU TARIC database is the definitive source for specific duty rates and import requirements.
How do trade agreements, such as the USMCA, affect the duty rates for static converters (HS 850440) imported into the United States?
Trade agreements like the United States-Mexico-Canada Agreement (USMCA) can significantly impact duty rates for goods classified under HS code 850440. If a static converter originates from Canada or Mexico and meets the USMCA's rules of origin, it may qualify for duty-free entry into the United States, even if the standard MFN rate were not 0.00%. For HS 850440, where the MFN rate is already 0.00%, the USMCA generally ensures continued duty-free treatment and may simplify other import requirements. It is essential for importers to obtain a valid Certificate of Origin from the exporter to substantiate the claim for preferential treatment under the USMCA. Always consult the specific provisions of the relevant trade agreement and the HTSUS for definitive eligibility criteria.