Important update on import tariffs
February 24, 2026 Section 122 of Trade Act of 1974
On February 24, 2026, the President of the United States signed a proclamation introducing a 10% duty on all products imported into the United States under Section 122 of the Trade Act of 1974. This ad valorem duty stacks on existing Section 301 and Section 232 tariffs currently in effect.
We will update this page regularly as the situation continues to develop.
February 20, 2026 Supreme Court ruling on IEEPA tariffs
In February 2026, the Supreme Court of the United States issued a ruling that the International Emergency Economic Powers Act (IEEPA) does not grant the President authority to impose tariffs. The Court did not establish a specific refund mechanism. Tariffs imposed pursuant to Section 301, Section 232, and other congressionally authorized trade statutes remain in force and were not implicated by the Court’s decision. As this situation evolves, we will provide additional information.
IEEPA Tariff Reduction on Imports from China and Hong Kong
On November 7, 2025, U.S. Customs and Border Protection issued CSMS #66749380 announcing a reduction in the IEEPA Tariff related to the synthetic opioid supply chain in The People’s Republic of China. Effective November 10, 2025, the tariff rate on applicable imports from China and Hong Kong will be reduced from 20% to 10%. Section 301, Section 232, and existing IEEPA Reciprocal Tariffs remain in effect at their current rates.
Tariff cost update effective September 1, 2025
Effective September 1, 2025, Mouser will expand the application of tariff fees across our product offering.
Mouser Electronics has a long-standing tradition of delivering competitive pricing to our customers by balancing supplier relationships, market conditions, business costs, taxes, and tariffs. Since 2018, we have worked hard to absorb the added costs of U.S. import tariffs to minimize the impact on our customers. However, the increased levies that began in 2025 have had a meaningful financial effect on our operations and we must now take action to reverse that impact.
To maintain our position as the leader in New Product Introductions (NPI) and to ensure that the latest technologies are available and in stock to ship same day for your newest designs, we must now pass on the full extent of these additional costs. We appreciate your continued support and remain committed to pricing transparency and responsiveness, and as international trade conditions evolve, we will adjust pricing accordingly.
Increased tariff rates on August 1, 2025
On July 30 and July 31, 2025, the President announced three new Executive Orders related to tariffs on imported goods. The first order, effective August 6, 2025, increases the tariff rate on goods from Brazil to 40%, in addition to the existing Reciprocal Tariffs.
The second order, effective August 1, 2025, increases the tariff rate on goods from Canada from 25% to 35%.
The third order, set to take effect on August 7, 2025, updates the Reciprocal Tariff rates initially issued in April 2025. Under this order, goods imported from countries not specifically named will continue to be subject to a 10% tariff, while updated rates for named countries are listed below.
| Countries and Territories |
Reciprocal Tariff, Adjusted |
|---|---|
| Afghanistan | 15% |
| Algeria | 30% |
| Angola | 15% |
| Bangladesh | 20% |
| Bolivia | 15% |
| Bosnia and Herzegovina | 30% |
| Botswana | 15% |
| Brazil | 10% |
| Brunei | 25% |
| Cambodia | 19% |
| Cameroon | 15% |
| Chad | 15% |
| Costa Rica | 15% |
| Côte d`Ivoire | 15% |
| Democratic Republic of the Congo | 15% |
| Ecuador | 15% |
| Equatorial Guinea | 15% |
| European Union: Goods with Column 1 Duty Rate > 15% |
0% |
| European Union: Goods with Column 1 Duty Rate < 15% |
15% minus Column 1 Duty Rate |
| Falkland Islands | 10% |
| Fiji | 15% |
| Ghana | 15% |
| Guyana | 15% |
| Iceland | 15% |
| India | 25% |
| Indonesia | 19% |
| Iraq | 35% |
| Israel | 15% |
| Japan | 15% |
| Jordan | 15% |
| Kazakhstan | 25% |
| Laos | 40% |
| Lesotho | 15% |
| Libya | 30% |
| Liechtenstein | 15% |
| Madagascar | 15% |
| Malawi | 15% |
| Malaysia | 19% |
| Mauritius | 15% |
| Moldova | 25% |
| Mozambique | 15% |
| Myanmar (Burma) | 40% |
| Namibia | 15% |
| Nauru | 15% |
| New Zealand | 15% |
| Nicaragua | 18% |
| Nigeria | 15% |
| North Macedonia | 15% |
| Norway | 15% |
| Pakistan | 19% |
| Papua New Guinea | 15% |
| Philippines | 19% |
| Serbia | 35% |
| South Africa | 30% |
| South Korea | 15% |
| Sri Lanka | 20% |
| Switzerland | 39% |
| Syria | 41% |
| Taiwan | 20% |
| Thailand | 19% |
| Trinidad and Tobago | 15% |
| Tunisia | 25% |
| Turkey | 15% |
| Uganda | 15% |
| United Kingdom | 10% |
| Vanuatu | 15% |
| Venezuela | 15% |
| Vietnam | 20% |
| Zambia | 15% |
| Zimbabwe | 15% |
Reciprocal Tariff Modifications Extended until August 1, 2025
On July 7, 2025, the President announced a suspension of the Executive Order that enacted reciprocal tariffs on select countries. These tariffs, originally modified for a 90-day period beginning April 9, 2025, were scheduled to be reinstated on July 9, 2025. However, per the President’s latest communication, the modified tariff rates will now remain in effect through August 1, 2025.
US and China Announce Trade Deal in Geneva
On May 12, 2025, the United States announced that a trade deal had been reached with Chinese officials following a meeting in Geneva, Switzerland. Both sides would reduce retaliatory tariffs implemented on April 9, 2025, and they would be effective by May 14, 2025. The result keeps all tariffs in place previous to the US announcement of Reciprocal Tariffs on April 2, 2025, and would reduce the Reciprocal tariff on China-origin goods to 10%. Section 301, Section 232, and IEEPA Fentanyl Tariffs will remain. China will reduce the tariff on US imports from 125% to 10%.
Increased tariff rates on April 9, 2025
On April 9, 2025, the United States increased the Reciprocal Tariffs on China exports to 125% in response to China’s increase on U.S. exports to 84%. This was in addition to the existing Section 301 and IEEPA tariffs, amounting to a total of 170% on a significant number of U.S. imports of China-origin goods. The United States also paused the increase of Reciprocal Tariffs on the 60 previously named countries leaving in place a tariff of 10% on all imports into the U.S., with the exception of China, Hong Kong, Mexico, and Canada. This pause is set to expire on July 8, 2025.
Reciprocal Tariff exclusion for specified products on April 5, 2025
On April 5, 2025, CSMS # 64724565 was issued by U.S. Customs and Border Protection, providing additional exclusions to the Reciprocal Tariffs.
Increased tariff rates on April 2, 2025
On April 2, 2025, the President of the United States issued an Executive Order imposing a Reciprocal Tariff of 10% on the import of all goods into the U.S. The new rates are expected to be effective at 12:01 a.m. on April 5, 2025. In addition, tariff rates on imports for 60 specifically-named countries would take effect on April 9, 2025, per Annex I of the Executive Order.
Exceptions to the newly introduced Reciprocal Tariffs, identified by 8-digit Harmonized Tariff Codes, were added as Annex II of the Section 232 Tariffs.
Increased tariff rates on March 4, 2025
On March 3, 2025, the President announced the implementation of tariffs on products imported from Canada and Mexico under the International Emergency Economic Powers Act (IEEPA).
The executive order imposed a 25% tariff on imports from Canada and Mexico. It also increased the tariff rate on Chinese imports, including Hong Kong, from 10% to 20%. All changes are effective from March 4, 2025.
The recent changes to U.S. trade policy are beyond our control. Rest assured, we remain dedicated to serving our customers and will keep you informed with regular updates on this page as more information becomes available.
Increased tariff rates on February 4, 2025
On February 4, 2025, new, increased tariffs came into effect for many types of imports from China. This action was taken using powers claimed by the President under the International Emergency Economic Powers Act (IEEPA), which allows the President to regulate commerce in response to national emergencies.
The new tariff of 10% is in addition to any current tariffs on Chinese imports.
Section 301 tariffs on Chinese products
Since July 2018, the U.S. Trade Representative (USTR) has imposed a 25% tariff on certain China-related products imported to the United States under Section 301 of the Tariff Act of 1930.
This applies to all products classified under the Harmonized Tariff Schedule (HTS) of the United States with China as the country of origin.
- 301 Tariff List 1 — Effective July 6, 2018
- 301 Tariff List 2 — Effective August 23, 2018
- 301 Tariff List 3 — Effective May 10, 2019
- 301 Tariff List 4 — Effective February 14, 2020
Increased tariff rates on January 1, 2025
Effective January 1, 2025, the tariff rate for semiconductors classified in HTS headings 8541 and 8542 was increased from 25% to 50%. While we have done our best to avoid passing tariff charges onto our customers, we are charging a percentage of the imposed tariffs on some of the products shipped within the United States and US territories. By charging a portion of the tariffs incurred by Mouser, we can ensure that these products are available in stock and ready to ship on demand.
The chart below lists the products under HTS headings 8541 and 8542 that had their tariffs increased from 25% to 50% on January 1, 2025. All other products with HTS codes already subject to tariff charges will remain unchanged.
| HTS Subheading | Product Description |
|---|---|
| 8541.10.00 | Diodes, other than photosensitive or light-emitting diodes |
| 8541.21.00 | Transistors, other than photosensitive transistors, with a dissipation rating of less than 1 W |
| 8541.29.00 | Transistors, other than photosensitive transistors, with a dissipation rating of 1 W or more |
| 8541.30.00 | Thyristors, diacs, and triacs, other than photosensitive devices |
| 8541.49.10 | Other photosensitive semiconductor diodes, other than light-emitting |
| 8541.49.70 | Photosensitive transistors |
| 8541.49.80 | Photosensitive semiconductor devices nesoi, optical coupled isolators |
| 8541.49.95 | Other photosensitive semiconductor devices, other than diodes or transistors, nesoi |
| 8541.51.00 | Other semiconductor-based transducers, other than photosensitive transducers |
| 8541.59.00 | Other semiconductor devices, other than semiconductor-based transducers, other than photosensitive devices, nesoi |
| 8541.90.00 | Parts of diodes, transistors, similar semiconductor devices, photosensitive semiconductor devices, LEDs and mounted piezoelectric crystals |
| 8542.31.00 | Electronic integrated circuits: processors and controllers |
| 8542.32.00 | Electronic integrated circuits: memories |
| 8542.33.00 | Electronic integrated circuits: amplifiers |
| 8542.39.00 | Electronic integrated circuits: other |
| 8542.90.00 | Parts of electronic integrated circuits and microassemblies |
Keeping you informed
This is a developing situation, and we will update this page with further information as necessary. Please see our Questions and Answers section below.
Questions and answers
How will the tariff rate increase affect my business operations outside the US?
The tariff fee will only apply to shipments within the United States.
How can I identify if a product is subject to the tariff fee?
We will apply a message to products targeted for the fee, so you can easily identify them in our search results. This message will also appear on the product detail page.
How can I identify alternative products that are not subject to Section 301 tariffs?
Our technical support teams will help you find alternative products that meet your needs. Visit our Contact Center to choose the contact method that works best for you.
How can I determine the tariff charges on a product?
Tariff amounts will show as line items on the cart, order review page (before you submit your payment), order confirmation page, and on your invoice.
How can I find out if tariffs apply when I request a quote?
We will apply a message to products targeted for the fee, so you can easily identify them in your quote.
Where can I find more information about Section 301 tariffs?
Where can I find more information about the IEEPA Tariffs?
-
FederalRegister.gov
- Implementation of Additional Duties on Products of the People’s Republic of China Pursuant to the President’s February 1, 2025 Executive Order Imposing Duties To Address the Synthetic Opioid Supply Chain in the People’s Republic of China
- Implementation of Additional Duties on Products of the People’s Republic of China Pursuant to the President’s Executive Order 14195, Imposing Duties to Address the Synthetic Opioid Supply Chain in the People’s Republic of China
- Implementation of Additional Duties on Products of Canada Pursuant to the President’s Executive Order 14193, Imposing Duties to Address the Flow of Illicit Drugs Across Our Northern Border
- Implementation of Additional Duties on Products of Mexico Pursuant to the President’s Executive Order 14194, Imposing Duties to Address the Situation At Our Southern Border
- Regulating Imports With a Reciprocal Tariff To Rectify Trade Practices That Contribute to Large and Persistent Annual United States Goods Trade Deficits
Last updated: February 24th, 2026