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Glossary of terms

Tariffs are duties imposed by a government on imported or exported goods, often used to protect domestic industries or generate revenue. 

These are tariffs imposed by a country in direct response to tariffs levied by another, often as part of a trade dispute or negotiation tactic. 

The origin of goods refers to their 'economic nationality’. It is used to determine tariff rates and trade policy measures. 

An FTA is a legally binding treaty between two or more countries to reduce or eliminate tariffs and barriers on goods and services. 

Customs valuation is the process of determining the value of goods to establish the customs duty base. 

Preferential origin grants reduced or zero tariffs to parties under a trade agreement if goods meet specific origin rules. 

Non-preferential origin refers to country where the goods are considered to have originated for purposes not related to trade preferences or where there are no preferential trade arrangements. 

Classification refers to assigning a product to a tariff code in the Harmonized System (HS) which determines applicable duties and rules and other trade and regulatory measures. 

A commodity code is the numerical code in the tariff schedule used for customs classification, combining HS, Combined Nomenclature (CN) and national subdivisions. 

A valuation method used in some jurisdictions (e.g., US) where the customs value is based on the first sale in a multi-tiered transaction, typically between manufacturer and middleman. 

Your member exclusive articles

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How to navigate US tariffs

We spoke to Garima Srivastava, international trade legislation senior advisor, to find out which UK sectors are most vulnerable in this new climate, the steps they could take to adapt and the support available to them.

Member exclusive Introduction To Export Licensing Controls

Navigating Tariffs - FAQ

Our industry leading Chartered Institute experts answered your most frequently asked questions about tariffs, giving you practical tips on how to protect your business and supply chain from disruption.

Member exclusive Cptpp

CPTPP explained

Diversifying supply chains in response to tariffs? The Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP) is an opportunity for firms looking to export to new markets in Asia and beyond.

Member exclusive Freeports

Trade Explained: Rules of origin

Rules of origin define the economic nationality of a product for the purposes of cross-border trade. Understanding them is essential for calculating tariffs and duties on goods.

Member exclusive Compliance Toolkits

Ask the Experts: Customs valuation

The ‘big three’ of cross-border trade - classification, rules of origin and valuation - is even more important in light of US tariffs. Revisit our customs valuation deep-dive.

Member exclusive Businessmancalculator

Six methods of customs valuation

Customs valuation is the process of working out the value of declared goods when they’re imported to another country. It is key for calculating tariffs and other charges.

Your member exclusive sector insights

Member exclusive Advancedmanufacturer

How auto and advanced manufacturing can manage US tariffs

We look at how two of the sectors most affected - automotive and advanced manufacturing - can adapt to new US tariffs.

Member exclusive Aerospace

How aerospace and defence firms can respond to US tariffs

Senior trade legislation advisor Garima Srivastava answers some of the crucial tariffs questions for those in the aerospace and defence sectors

Member exclusive foodinspection

What food and drink exporters can do about new US tariffs

We take a look at what those in the UK’s food and drink sector can do to understand and upskill for this major turning point in global trade. 

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US Tariffs News 

Keep up to date with the latest US tariffs news and events that could impact your operations. You’ll find the most current news right here.   

newswithcoffee
17 April, 2025

The Week in Trade: WTO warnings, UK inflation drops and US tariff insights

Ustariffs
17 April, 2025

US tariffs live update: US-China trade dispute escalates with fresh US chip controls

Japan US
17 April, 2025

Japan-US talks end without agreement though Trump claims ‘big progress’

Latest US tariffs insights
Navigate US tariffs - together

Connect with an expert via our advisory services

Make informed business decisions, in response to a volatile environment. Connect with us to access guidance from trusted leaders in international trade. Remember: Your goods could be affected even if you are not a direct exporter to the US – we can help you ascertain whether you will be impacted. 

Our three levels of service:

  • International Trade Surgery - Get fast answers to your tariffs questions in a focused session lasting up to two hours. 
  • Health Check - A comprehensive review of your trade operations to uncover gaps and present actionable recommendations in response to US tariffs. 
  • Strategic Insights Advisory - Get high-level guidance and long-term strategic solutions. 

Chartered Institute members receive a discount of up to 25%.

Advisory Hero

Your key tariffs training courses

Introduction To Export Lice

Rules of Origin

Assess how origins impact US tariff exposure and how origin planning can help mitigate the risks. 

Completing Customs Declarat

Customs Valuation

Gain a clear understanding of how US tariffs affect customs valuation for UK exports. 

Customs Declaration

How to Classify Your Goods

Recognise the role of tariff classification in US duty rates on UK-origin goods. 

Advanced Exporting

Customs Special Procedures

Identify how special procedures can be used to manage tariffs on UK goods. 

Purchase all four courses for just £1500 in our Tariff Navigator Training Bundle, or purchase each individual course at the reduced rate of £450 each. To qualify for this offer, and learn how it works, fill in the form below.

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Join as a professional or business member today to access all the content in this tariffs toolkit.

Our members benefit from additional practical tools and resources created to help them get to grips and stay compliant with tariff regulations. Plus, they enjoy a wealth of other benefits, such as:

Member exclusive Chartered Institute Helpline

Trade and customs helpline

Connect with our experts for support with your tariff-related issues. Exclusively for business members, our trade and customs helpline provides a direct line to expertise and guidance when you need it.

Member exclusive Lunchtimelearning

Lunchtime Learnings

Dive into the benefits of free trade agreements and how to adapt to tariff challenges. Join our upcoming member-exclusive webinars for the manufacturing and food and drink sectors.

Member exclusive Video Call

Special Interest Groups

Discuss the challenges impacting your business in our Special Interest Group meet-ups. Share insights, learn from leaders in your industry or profession and make meaningful connections.

Member exclusive Compliance Toolkits

Discounts on advisory and training

Enjoy up to 20% off all Chartered Institute training courses and 25% off our advisory services. Embed expertise in your business while enjoying exclusive savings! 

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Enquire now for more information on:

  • Our advisory services - our experts are ready to provide you with strategic advice, to ensure your response to tariffs is informed and shaped by the latest knowledge
  • Training courses - Learn how to maximise opportunities and diversify your supply chain with our range of courses - and access discounted rates with the Tariff Navigator Training Bundle
  • Membership -  Become a member for exclusive tariffs insight and webinars, as well as access to our International Trade Technical Helpline to answer your tariffs questions

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