HTS Classification for Electronics and Semiconductors: Navigating Chapters 84 and 85

The High Stakes of Electronics Classification

The United States imports more than $400 billion in electronics and semiconductor products annually, making this one of the most significant trade categories by value. From the smallest integrated circuit to complete server racks, each product must be correctly classified under the Harmonized Tariff Schedule. The consequences of getting it wrong are severe: Section 301 tariffs on Chinese-origin electronics can range from 25% to 50%, making a misclassification error extraordinarily expensive. Beyond duty costs, incorrect classification can trigger CBP audits, prior disclosure obligations, and even allegations of fraud. Chapters 84 (Nuclear Reactors, Boilers, Machinery) and 85 (Electrical Machinery and Equipment) are the two primary chapters for electronics classification, but they are among the most technically demanding areas of the tariff schedule.

Semiconductors and Integrated Circuits: Heading 8541 and 8542

Semiconductors are classified under two main headings. Heading 8541 covers semiconductor devices such as diodes, transistors, and photosensitive semiconductor devices (including solar cells and LEDs). Heading 8542 covers electronic integrated circuits — this is where microprocessors, memory chips, ASICs, FPGAs, and system-on-chip (SoC) devices are classified. Within 8542, the subheadings distinguish between processors and controllers (8542.31), memories (8542.32), amplifiers (8542.33), and other integrated circuits (8542.39). The good news for importers is that many semiconductors enter the United States duty-free under the Information Technology Agreement (ITA), but this is not universal. You must still classify correctly to claim the zero-duty rate, and not all semiconductor products are covered. Bare semiconductor wafers that have not yet been diced into individual chips are classified under 3818.00 (chemical products for electronics use), not under 8542.

• Microprocessors and microcontrollers: 8542.31
• DRAM, SRAM, Flash memory chips: 8542.32
• Amplifier ICs: 8542.33
• ASICs, FPGAs, SoC devices: 8542.39
• Discrete transistors (MOSFETs, IGBTs): 8541.29-8541.49
• LEDs: 8541.41-8541.49
• Solar cells/photovoltaic cells: 8541.40 (now subject to Section 201 safeguard tariffs)
• Unprocessed semiconductor wafers: 3818.00

Printed Circuit Boards and Electronic Assemblies

Printed circuit boards (PCBs) are classified differently depending on whether they are bare or populated. A bare PCB — the substrate with copper traces but no components mounted — is classified under 8534.00. Once components are soldered onto a PCB, creating a printed circuit board assembly (PCBA), the classification changes dramatically. A populated PCBA is classified according to its function. If the PCBA constitutes a complete machine or apparatus (or a part thereof with a known function), it is classified under the heading for that machine. For example, a PCBA that functions as a network router interface card classifies under 8517. A PCBA that functions as a power supply classifies under 8504. A graphics processing card for a computer classifies under 8471. This functional classification principle means that you cannot simply default to heading 8534 for all PCBAs — you must understand what the assembly does in its end-use application.

Displays, Monitors, and Touchscreens

Display technology classification has evolved rapidly. LCD and OLED panels that are not yet assembled into complete monitors are classified under 9013.80 (liquid crystal devices not constituting articles provided for more specifically in other headings). Complete monitors and displays with input capability classify under 8528. Touchscreen assemblies that include both the display and the touch-sensing layer may classify under 8528 if they function as input/output devices, or under 8471 if they are parts of an automatic data processing (ADP) machine. Television receivers classify under 8528.72. The distinction between a monitor and a television receiver depends on whether the unit includes a tuner — monitors without tuners that rely on external signal processing generally classify differently from TVs with built-in tuners. For importers of display panels used in manufacturing, the classification of the raw panel versus the finished assembly can mean the difference between duty-free treatment and a significant tariff.

Batteries and Energy Storage

Batteries are classified under heading 8506 (primary cells and batteries — non-rechargeable) and heading 8507 (electric accumulators, i.e., rechargeable batteries). Lithium-ion batteries, which dominate consumer electronics and EV applications, fall under 8507.60. Lithium primary (non-rechargeable) batteries are under 8506.50. Battery packs that include management electronics (BMS) are still generally classified as batteries under 8507 if the battery function is primary. However, if a battery pack is integrated into a larger assembly — such as a laptop battery that also serves as a structural component — the classification may follow the larger assembly. Portable power banks classify under 8507.60 as lithium-ion accumulators. The duty rate on lithium-ion batteries from China was increased to 25% under Section 301 in 2024, with further increases possible, making correct classification and country-of-origin determination essential for cost management.

Computers and Data Processing Equipment

Automatic data processing (ADP) machines and their parts are classified under heading 8471. This includes desktop computers, laptops, servers, and tablets. Parts and accessories of ADP machines — such as motherboards, hard drives, RAM modules, and power supplies designed for computers — classify under 8473.30. Storage devices like solid-state drives (SSDs) may classify under 8471.70 as storage units. External hard drives classify under 8471.70 as well. Network equipment such as routers, switches, and modems classify under 8517 (telephone and telecommunications apparatus). Uninterruptible power supplies (UPS) classify under 8504.40. The classification of servers versus networking equipment versus storage arrays can become particularly complex in modern data center environments where devices serve multiple functions.

Common Classification Mistakes in Electronics

1. Classifying populated PCBAs as bare PCBs (8534): Once components are mounted, the PCBA must be classified by its function, not as a bare board.
2. Assuming all electronics are ITA duty-free: The ITA covers many but not all electronics. Consumer electronics, appliances, and many components are excluded.
3. Ignoring the ADP machine exclusion: Parts 'solely or principally' for ADP machines classify under 8473, not under the general heading for that type of component.
4. Misclassifying multi-function devices: A device that combines computing, telecommunications, and display functions must be classified by its principal function under GRI 3.
5. Overlooking Section 301 tariff exposure: Even duty-free products under the ITA may be subject to Section 301 additional duties depending on country of origin. Classification and origin interact in critical ways.
6. Confusing parts with accessories: HTS Chapter 85 Note 2 defines what constitutes a 'part' versus an 'accessory' — the distinction affects classification and duty rates.

Strategic Considerations for Electronics Importers in 2026

The trade landscape for electronics continues to shift. Section 301 tariffs on Chinese electronics remain in effect, with certain product categories seeing escalated rates. The CHIPS and Science Act is reshaping semiconductor supply chains, potentially affecting the origin of imported chips over the coming years. Importers should conduct regular classification reviews to ensure their HTS codes remain accurate as products evolve — a firmware update that changes a device's principal function could, in theory, change its classification. Maintaining detailed product specifications, functional descriptions, and component breakdowns is essential for defending your classification in the event of a CBP inquiry. When in doubt, consider requesting a binding ruling from CBP to establish certainty for high-volume or high-value import lines.