HS 840710 Aircraft engines

Quick Answer: Aircraft engines imported under HS 840710 enter the UK duty-free, the EU at 1.70% ad valorem, and the US at rates ranging from Free to 35% ad valorem. This classification specifically covers spark-ignition internal combustion piston engines of a kind used for the propulsion of aircraft. Importers should be aware of potential variations in duty rates based on specific engine types and origin countries, as well as any applicable import licensing or certification requirements. CustomTariffs aggregates this data to assist in compliance.

What Are the Import Duty Rates?

🇬🇧 United Kingdom

Code MFN Preferential Unit
8407100010 0.00 % — —
8407100020 0.00 % — —
8407100090 0.00 % — —
8407100000 — — —

🇪🇺 European Union (TARIC)

Code MFN Preferential Unit
8407100000 — — —
8407100010 — — —
8407100020 — — —
8407100090 1.70 % — —

🇺🇸 United States (HTSUS)

Code MFN Preferential Unit
84071000 Free — —
8407100040 — — ["No."]
8407100090 — — ["No."]
8407100020 — — ["No."]
8407100060 — — ["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

US$102.5M
ImportsExports

How to Classify This HS Code?

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What products does HS 840710 cover?

This subheading covers engines of a kind used for the propulsion of aircraft, as defined by the World Customs Organization's Harmonized System Nomenclature. This includes complete, assembled engines designed specifically for powering airplanes, helicopters, and other aerial vehicles. Official definitions from sources like the USITC Harmonized Tariff Schedule (HTS) and the EU's TARIC database confirm that this classification is reserved for engines whose primary and intended use is aircraft propulsion, distinguishing them from general-purpose engines.

What falls outside HS 840710?

The following products are excluded from HS 840710: engines designed for other modes of transport, such as automobiles (HS 840731-840734), motorcycles (HS 840721), or marine vessels (HS 840729). Additionally, auxiliary power units (APUs) for aircraft, which provide power but do not directly propel the aircraft, are typically classified under other headings, often within 8411. Engines intended for drones or unmanned aerial vehicles may also fall under different classifications depending on their specific design and power output, often requiring careful consideration of their primary function.

What are common classification mistakes for HS 840710?

A common error is misclassifying engines that are not exclusively designed for aircraft propulsion. For instance, multi-purpose engines that could be adapted for aircraft but are primarily intended for other applications, or engines for unmanned aerial vehicles that are not considered "aircraft" in the traditional sense, might be incorrectly placed here. Adherence to General Interpretative Rule 1, which states that classification shall be determined according to the terms of the headings and any relative Section or Chapter Notes, is crucial, alongside specific Explanatory Notes from the WCO.

How should importers classify products under HS 840710?

The correct procedure for classifying engines under HS 840710 involves first confirming the engine's intended and primary use. Importers and customs brokers must consult the official tariff schedule of the importing country, such as the USITC HTS or the UK Trade Tariff, and review the specific wording of heading 8407 and subheading 840710. Examining product specifications, manufacturer declarations, and technical documentation is essential to ensure the engine is indeed designed for aircraft propulsion.

How is the duty calculated for products under HS 840710?

A Pratt & Whitney PT6A turboprop engine, weighing 150 kg and declared at a customs value of $500,000 USD, would attract a US duty of $25,000. This is calculated using the Most Favored Nation (MFN) duty rate of 5.0% ad valorem, as published in the USITC Harmonized Tariff Schedule (HTS) for aircraft engines. The calculation is: 5.0% × $500,000 = $25,000. This rate applies to imports from countries not benefiting from preferential trade agreements.

Which trade agreements reduce duties for HS 840710?

Several free trade agreements may reduce the applicable duty rate for HS 840710, including the United States-Mexico-Canada Agreement (USMCA), which can result in a Free duty rate for qualifying goods originating from Canada or Mexico. Additionally, the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP) may offer preferential rates for originating goods from member countries like Japan. To claim these preferences, a self-certified origin statement or a certificate of origin is typically required, depending on the specific agreement and jurisdiction.

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Which HS Codes Are Related?

HS 840910 HS 840731 HS 840790 HS 840721 HS 840810 HS 840820

Not the right code? Search all HS codes to find the correct tariff classification.

FAQ

What are the typical import duty rates for HS code 840710 (Aircraft engines)?

Import duty rates for HS code 840710, covering aircraft engines, vary significantly by country and trade agreement. For example, under the US Most Favored Nation (MFN) tariff schedule, the rate is 0.00%. However, other countries may have different rates. The EU TARIC system and the UK Trade Tariff also provide specific rates. It is crucial to consult the relevant national tariff schedule for the importing country. For instance, some countries might apply a rate of 1.70% or even higher, while others may grant duty-free access under specific trade agreements.

How are aircraft engines classified under HS code 840710, and what are the key criteria?

HS code 840710 specifically covers 'Spark-ignition internal combustion piston or rotary internal combustion engines for aircraft'. The classification hinges on the engine's intended use (for aircraft) and its type (spark-ignition, internal combustion, piston or rotary). Engines designed for other applications, such as automotive or industrial, would be classified under different HS codes. Verification often involves reviewing technical specifications, product literature, and potentially manufacturer declarations to confirm the engine's design and primary application.

What documentation is typically required when importing aircraft engines under HS code 840710?

When importing aircraft engines under HS code 840710, importers and customs brokers should be prepared to provide several key documents. These typically include a commercial invoice, a packing list, and a bill of lading or air waybill. Crucially, a certificate of origin is often required to determine eligibility for preferential duty rates under trade agreements. Depending on the importing country's regulations and the specific nature of the engine (e.g., new, used, or for repair), additional documentation such as an import license, technical specifications, or proof of compliance with aviation safety standards may be necessary.

How do trade agreements, such as USMCA or EU trade deals, impact the duty rates for aircraft engines (HS 840710)?

Trade agreements can significantly reduce or eliminate import duties for aircraft engines classified under HS 840710. For example, under the United States-Mexico-Canada Agreement (USMCA), eligible aircraft engines may benefit from preferential duty rates, potentially reaching 0.00%. Similarly, trade agreements between the European Union and partner countries can offer reduced tariffs. To claim these benefits, importers must ensure the engines meet the rules of origin stipulated in the relevant trade agreement and provide a valid certificate of origin. It is essential to consult the specific provisions of the applicable trade agreement and the importing country's customs regulations.

How is the import duty calculated for aircraft engines (HS 840710) if a duty rate applies?

The calculation of import duty for aircraft engines depends on whether the duty is ad valorem (based on value) or specific (based on quantity), or a combination. For instance, if an importing country applies a 1.70% ad valorem duty rate and an aircraft engine has an assessed customs value of $500,000, the duty would be calculated as: $500,000 (Value) × 0.0170 (Duty Rate) = $8,500. If a specific duty were applicable, for example, $10 per kilogram, and the engine weighed 1,000 kg, the duty would be 1,000 kg × $10/kg = $10,000. Always confirm the applicable duty basis (ad valorem, specific, or compound) and the exact rate from the official tariff schedule of the importing country.