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Published
June 19, 2025

Understanding Differences Between Duties, Taxes, and Tariffs

Expanding your ecommerce business internationally can open new revenue streams but also introduces complexities, especially when it comes to duties, taxes, and tariffs.

These fees impact your costs, pricing, and customer experience, and misunderstanding them can lead to costly surprises at checkout or during shipping.

In this guide, we’ll break down what duties, taxes, and tariffs are, how they apply to your business, how they’re changing with global ecommerce trends, and most importantly, how you can manage them efficiently using ecommerce software like Swap Commerce.

What are Tariffs?

Tariffs are a specific type of duty - generally a tax imposed on imported goods for political or economic reasons, such as protecting domestic industries or retaliating in trade disputes. 

Tariffs can be flat fees or percentage-based and are often subject to rapid change depending on international relations and trade agreements.

The difference between tariffs and other taxes lies in their purpose and application: tariffs are typically broader trade policy tools, while taxes are revenue-raising measures tied to sales and consumption.

What Are Duties? 

Duties are fees imposed by customs authorities on imported goods, typically calculated based on the product’s value, category, or origin. Duties serve as a way for countries to protect local industries or generate revenue from imports. 

For ecommerce businesses, duties can significantly increase the landed cost of products sold internationally, affecting profit margins and pricing strategies.

For example, a clothing brand shipping from China to the U.S. may face different duty rates depending on the garment type. Knowing the applicable duties upfront helps you price products accurately and avoid unexpected costs that could deter customers.

What Are Taxes? 

Taxes on imports generally refer to value-added tax (VAT), sales tax, or goods and services tax (GST) applied to imported goods.

Unlike duties, which are focused on customs protection and revenue, these taxes fund government services and are usually based on the product price plus duties and shipping.

Who pays import tax? Usually, the buyer is responsible at delivery, but businesses often prepay or include these costs to avoid surprises.

Understanding taxing imports is essential because many countries require ecommerce businesses to collect and remit VAT or sales tax on cross border sales. 

Failing to account for these taxes can result in penalties, delayed shipments, and poor customer experiences. Clear communication about customs tax definitions and charges is key to transparency.

Breaking Down the Differences: Tariff vs Tax vs Duties

To simplify:

  • Tariffs: A form of duty imposed for trade policy reasons, often changing with global politics.
  • Duties: Customs fees on imports, based on product type and origin.
  • Taxes: VAT, GST, or sales taxes applied on top of product price plus duties.

Understanding the difference between a tariff and a tax, or a tariff and a duty, helps ecommerce businesses navigate international shipping smoothly and price products correctly.

How Duties, Taxes, and Tariffs Impact Ecommerce Retailers

These fees add complexity to your pricing and shipping processes. If duties or tariffs unexpectedly increase, your margins can shrink, or customers may face hidden fees that cause abandoned carts.

Operationally, managing compliance and customs paperwork adds overhead and delays.

Businesses must anticipate changing tariffs and taxes to stay competitive - especially amid global trade tensions or new regulations.

Proactively managing these charges enhances customer trust and improves international expansion success.

As global ecommerce transforms, more countries implement stricter customs controls, new VAT regimes, and tariff adjustments.

Trade agreements like USMCA or Brexit alter duty rates and tax obligations frequently.

Additionally, the rise of direct-to-consumer sales means more small parcels crossing borders, increasing customs scrutiny.

Ecommerce businesses must stay agile, adapting to new rules and optimizing supply chains for cost and speed.

Managing Duties, Taxes, and Tariffs within Ecommerce 

Manual calculation and management of duties, taxes, and tariffs is error-prone and time-consuming.

This is where ecommerce software like Swap Commerce excels. Our Swap Global platform automates real-time calculations for duties, tariffs, and taxes based on accurate product data and destination rules.

With Swap, you can provide customers with transparent, all-in pricing upfront as well as Delivered Duty Paid shipping meaning no hidden fees or surprises at checkout.

Our software integrates with your ecommerce store and logistics partners to streamline compliance, optimize shipping costs, and simplify international trade management.

Not only can Swap simplify and streamline your tariff and tax calculations, it can help you find efficiencies and avoid higher duty costs through B2B2C shipping solutions.

Through Clear by Swap Global, brands can mitigate their exposure to increased tariffs and optimise their global logistics all from one tech stack.  

Understanding and managing duties, taxes, and tariffs is essential for ecommerce success in today’s global marketplace.

By educating yourself and leveraging the right technology, you can reduce risks, improve margins, and create a better customer experience.

Swap Commerce’s platform is built to help ecommerce businesses navigate these complexities with confidence.

Ready to simplify your international shipping and customs management? Book a Demo today and take control of your global ecommerce operations.

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