HTS heading 8542 · Chapter 85
HTS 8542: Electronic integrated circuits
HTS heading 8542 covers electronic integrated circuits; parts thereof. It has 5 tariff lines with a duty rate; the general (MFN) rates are Free (5 lines).
Imports may also owe Chapter 99 tariffs (Section 232, 301 or 201) depending on origin and date, plus the Merchandise Processing Fee and, by sea, the Harbor Maintenance Fee.
Rates from the 2026 HTS Revision 22, effective October 30, 2026. Source: U.S. International Trade Commission.
Tariff lines and duty rates
| HTS code | Description | General | Special | Column 2 | Estimate |
|---|---|---|---|---|---|
| Electronic integrated circuits: | |||||
| 8542.31.00 | Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits | Free | 35% | ||
| Controllers (including microcontrollers): | |||||
| 8542.31.00.15 | 8-bit[No.] | Estimate → | |||
| 8542.31.00.20 | 16-bit[No.] | Estimate → | |||
| 8542.31.00.25 | 32-bit[No.] | Estimate → | |||
| 8542.31.00.30 | Other[No.] | Estimate → | |||
| Processors (including microprocessors): | |||||
| 8542.31.00.35 | Digital signal processors (DSPs)[No.] | Estimate → | |||
| 8542.31.00.40 | Graphics processing units (GPUs)[No.] | Estimate → | |||
| 8542.31.00.45 | Central processing units (CPUs)[No.] | Estimate → | |||
| 8542.31.00.50 | Other[No.] | Estimate → | |||
| Programmable logic devices (PLDs): | |||||
| 8542.31.00.55 | Complex programmable logic devices (CPLDs)[No.] | Estimate → | |||
| 8542.31.00.60 | Field programmable gate arrays (FPGAs)[No.] | Estimate → | |||
| 8542.31.00.65 | Other[No.] | Estimate → | |||
| 8542.31.00.70 | System on chip (SoCs)[No.] | Estimate → | |||
| 8542.31.00.75 | Other[No.] | Estimate → | |||
| 8542.32.00 | Memories | Free | 35% | ||
| Dynamic read-write random access (DRAM): | |||||
| 8542.32.00.02 | Not over 128 megabits[No.] | Estimate → | |||
| 8542.32.00.24 | Over 128 megabits but not over 256 megabits[No.] | Estimate → | |||
| 8542.32.00.28 | Over 256 megabits but not over 512 megabits[No.] | Estimate → | |||
| 8542.32.00.32 | Over 512 megabits but not over 1 gigabit[No.] | Estimate → | |||
| 8542.32.00.36 | Over 1 gigabit[No.] | Estimate → | |||
| 8542.32.00.41 | Static read-write random access (SRAM)[No.] | Estimate → | |||
| 8542.32.00.51 | Electrically erasable programmable read-only memory (EEPROM)[No.] | Estimate → | |||
| 8542.32.00.61 | Erasable (except electrically) programmable read-only memory (EPROM)[No.] | Estimate → | |||
| 8542.32.00.71 | Other[No.] | Estimate → | |||
| 8542.33.00.01 | Amplifiers[No.] | Free | 35% | Estimate → | |
| 8542.39.00 | Other | Free | 35% | ||
| 8542.39.00.10 | RF transceivers[No.] | Estimate → | |||
| 8542.39.00.20 | Active filters[No.] | Estimate → | |||
| Data converters: | |||||
| 8542.39.00.30 | Analog to digital converters (ADCs)[No.] | Estimate → | |||
| 8542.39.00.40 | Digital to analog converters (DACs)[No.] | Estimate → | |||
| 8542.39.00.50 | Other[No.] | Estimate → | |||
| 8542.39.00.70 | With adjustable performance characteristics, not elsewhere specified or included[No.] | Estimate → | |||
| 8542.39.00.90 | Other[No.] | Estimate → | |||
| 8542.90.00.00 | Parts[No.] | Free | 35% | Estimate → |
34 lines shown. Statistical suffixes (the last two digits) inherit the rate of the 8-digit subheading above them.
Example: base duty and fees on $10000
For HTS 8542.31.00 at the general rate of Free, shipped by ocean, before any Chapter 99 tariffs:
| Base duty (Free) | $0.00 |
| Merchandise Processing Fee (0.3464%, min $34.58) | $34.64 |
| Harbor Maintenance Fee (0.125%) | $12.50 |
| Duty and fees | $47.14 |
Origin-specific tariffs can multiply this. Run this example from China or from Mexico to see every line.
Duty by country of origin
Frequently asked questions
What is the duty rate for HTS 8542?
Heading 8542 has 5 rate lines. The general (MFN) duty rates are Free (5 lines). Products of free trade agreement partners may enter at the special rate, and Column 2 rates apply to countries without normal trade relations. Chapter 99 tariffs can be added on top: calculate the full amount.
Do Section 301, 232 or 201 tariffs apply to HTS 8542?
It depends on the 8- or 10-digit subheading, the country of origin, the entry date and, for Section 232, the metal content. These additional duties are listed in Chapter 99 of the HTS. The free duty calculator checks each program for a given code, origin and date and shows which apply and why.
What fees are added to an import under HTS 8542?
Formal entries pay the Merchandise Processing Fee of 0.3464% of value (minimum $34.58, maximum $670.86 in FY2027). Ocean shipments also pay the Harbor Maintenance Fee of 0.125% of value. See the import duty calculator for how they combine.