8542.31.00
Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
Duty rates
- General
- Free
- The base rate for goods from most countries.
- Special
- —
- Lower rates under trade agreements and programs, for goods that meet their rules of origin; each symbol names one.
- Column 2
- 35%
- The higher rate for the few countries without normal trade relations with the United States.
These are base rates, not what you pay. The country of origin can add extra duties (Sections 301, 232 and others), and customs fees come on top: the calculator adds up what applies to your goods, each with its source. Why the base rate is not enough
Calculate duties for this codeBase columns of the 2026 HTS Revision 22, in force from Oct. 30, 2026 (official source).
Duties by country of origin
What the calculator answers today for goods of this code from each country, with no trade agreement claimed and before entry fees, on the 2026 HTS Revision 22: the total as a share of the customs value, and the duties that make it up.
| Made in | Duty rate | Made up of |
|---|---|---|
| China | 50% |
|
| Mexico | 0% |
|
| Vietnam | 0% |
|
| Germany | 0% |
|
| India | 0% |
|
Each answer takes the ordinary case of the questions these goods raise: Certified as an automobile part for U.S. production or repair: No; Certified as a medium- or heavy-duty vehicle part for U.S. production or repair: No.
An estimate, not a customs decision. Calculate for your goods, with their value, quantity and date of entry.
Official notices
Actions of the President, the USTR or U.S. Customs and Border Protection (CBP) that name this code.
- Jul 23, 2026 · The White House Actions by the United States in the Investigations Under Section 301 of the Trade Act of 1974 of the Acts, Policies, and Practices of 60 Economies Related to the Failure of Each Economy To Impose and Effectively Enforce a Prohibition on the Importation of Goods Produced With Forced Labor
- Jul 20, 2026 · The White House Action by the United States in the Investigation Under Section 301 of the Trade Act of 1974 of Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal Deforestation
- Feb 20, 2026 · The White House Imposing a Temporary Import Surcharge To Address Fundamental International Payments Problems
- Nov 14, 2025 · The White House Modifying the Scope of the Reciprocal Tariffs With Respect to Certain Agricultural Products
- Sep 5, 2025 · The White House Modifying the Scope of Reciprocal Tariffs and Establishing Procedures for Implementing Trade and Security Agreements
- Apr 2, 2025 · The White House Regulating Imports With a Reciprocal Tariff To Rectify Trade Practices That Contribute to Large and Persistent Annual United States Goods Trade Deficits
- Sep 18, 2024 · USTR Notice of Modification: China's Acts, Policies and Practices Related to Technology Transfer, Intellectual Property and Innovation
Mentioned in Chapter 99
The parts of Chapter 99, in the 2026 HTS Revision 22, that list HTS 8542.31.00, a broader code that includes it, or a narrower code within it.
| U.S. note | Excerpt | Headings that refer to it |
|---|---|---|
| U.S. note 2(aa)(ii) | (ii) As provided in heading 9903.03.03, the additional duty imposed by heading 9903.03.01 shall not apply to articles the product of any country that are classifiable in the following subheadings of the HTSUS: [Compiler's note: List may… | 9903.03.01, 9903.03.03 |
| U.S. note 2(v)(iii)(a) | (a) As provided for in heading 9903.01.32, the additional duties imposed by headings 9903.01.25, 9903.01.35, 9903.01.39, 9903.01.63, 9903.02.01–9903.02.73, 9903.02.79–9903.02.80, 9903.02.82–9903.02.83, and 9903.02.87–9903.02.88 shall not… | 9903.01.25, 9903.01.32, 9903.01.43, 9903.01.44, 9903.01.45, 9903.01.46 and 107 more |
| U.S. note 20(y)(62) | (62) Application specific integrated circuits (ASICs), not containing memories, designed for use in engine control units (ECUs) to interface with linear exhaust gas oxygen sensors (UEGOs) (described in statistical reporting number | 9903.88.20 |
| U.S. note 31(f)(i)(15) | (i) Heading 9903.91.05 applies to products of China that are classified in the following 8-digit subheadings, effective with respect to goods entered for consumption, or withdrawn from warehouse for consumption, on or after 12:01 a.m.… | 9903.91.05 |
| U.S. note 50(a)(ii) | (ii) As provided in heading 9903.05.03, the additional duty imposed by heading 9903.05.01 shall not apply to articles the product of Brazil that are classifiable in the following subheadings of the HTSUS: [Compiler's note: List may begin… | 9903.05.01, 9903.05.03 |
| U.S. note 52(b) | (b) As provided in heading 9903.05.86, the duties imposed by headings 9903.05.20–9903.05.84 shall not apply to articles that are classifiable in the following provisions of the HTSUS: | 9903.05.20, 9903.05.21, 9903.05.22, 9903.05.23, 9903.05.24, 9903.05.25 and 60 more |
Being listed is not owing a duty. A note may list goods that a measure leaves out; whether a heading applies depends on the origin, the date and the product; and the measures on all the goods of a country list no code at all. The calculator says what applies.
In the tariff
- 8542Electronic integrated circuits; parts thereof
- Electronic integrated circuits
- 8542.31.00Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuitsFree
- Controllers (including microcontrollers)
- 8542.31.00.158-bit
- 8542.31.00.2016-bit
- 8542.31.00.2532-bit
- 8542.31.00.30Other
- Processors (including microprocessors)
- 8542.31.00.35Digital signal processors (DSPs)
- 8542.31.00.40Graphics processing units (GPUs)
- 8542.31.00.45Central processing units (CPUs)
- 8542.31.00.50Other
- Programmable logic devices (PLDs)
- 8542.31.00.55Complex programmable logic devices (CPLDs)
- 8542.31.00.60Field programmable gate arrays (FPGAs)
- 8542.31.00.65Other
- 8542.31.00.70System on chip (SoCs)
- 8542.31.00.75Other