When you sell across borders, customs duties and VAT quickly become a strategic factor for both growth and customer experience. The article explains the difference between customs duties and VAT, what happens during import and export, and why correct setup of VAT and data is crucial, especially in Shopify and when selling in the EU. The focus is on how to avoid costly mistakes, ensure clear pricing for customers, and create a setup that can scale without hindering conversion.
Taxes and VAT in e-commerce are not about making things complicated. It's about making them stable. When your Shopify webshop expands to multiple markets, small mistakes in rates, price display, product data, or documentation can become costly in terms of time, reporting, and customer service.
What is the difference between customs duties and VAT?
Taxes and VAT are often mixed up, but they cover two different things that affect your operations in their own ways.
Customs
Customs are related to goods that cross a border. When importing, a duty may arise depending on the item, country of origin, trade agreements, and how the item is classified.
VAT
VAT is typically a consumption tax on sales. In practice, VAT affects how you display prices, how you calculate and collect tax at checkout, and how you record and report your revenue.
A good rule of thumb is that customs is about the movement of goods, while VAT is about sales and consumption. In international trade, they intersect, which is why it requires a conscious setup.
Customs duties and VAT on import and export
When you move beyond your home market, you encounter an extra layer of complexity in your daily life. It's rarely the rules that trip you up. It's the details in data, processes, and tools that don't align.
Documentation and data discipline
You can't just guess about customs and VAT when the order volume increases. Typical problems start with a lack of structure in product data and order flow, and it often ends up as extra support, discrepancies in reporting, or delays in delivery.
Therefore, it makes sense to incorporate customs duties and VAT into your platform and your integrations early on, so you can manage it technically and operationally, rather than fixing it manually afterwards.
For example, it may require you to expand your Shopify webshop with custom logic or system integrations, so data flows correctly between the webshop, ERP, shipping setup, and reporting. If you want to see how we typically solve this, you can read more about custom applications.
OSS and IOSS for webshops in the EU
If you sell B2C in the EU, you will quickly encounter OSS and IOSS. Both schemes are designed to make VAT handling more convenient across countries, so you don't end up with unnecessary administration for each individual market.
The most important thing in practice is that you understand the arrangements early on, so your setup in Shopify and your internal processes do not work against you when you scale.
You should always check the applicable regulations with the authorities. The Tax Agency's page on one stop moms is a good starting point.
Shopify setup for international trade
Shopify can support tax logic across markets, but only if the structure is well thought out. Many wait until they hit the second market. This often becomes expensive, as you will need to change the setup and correct historical data and reports.
There are typically three areas that need to be under control before you can truly scale safely:
- How your Shopify webshop displays prices and VAT correctly per market, so customers don't encounter unexpected amounts.
- How your markets are set up so that you don't mix rates, rules, and pricing languages together.
- How your data can be used for operations and reporting, so finance and customer service work on the same basis.
Once the foundation is in place, it becomes easier to expand into new countries without turning growth into a cleanup task. If you want to see how we work with structure and scaling across markets, you can read more about international expansion.
Duties and VAT as a conversion barrier in your webshop
Customers do not like surprises, and teams do not like cases that start with questions about why the amount does not match. When pricing, VAT, and delivery terms are not clear, it can quickly become a conversion barrier.
The solution is rarely a single large effort. Shopify conversion optimization is about continuous improvements, where you remove friction by connecting the platform, data, and processes, so both customers and internal teams can trust the numbers.
If you want to dive into the technical framework for tax setup, then Shopify's documentation on taxes a solid starting point.
If you want advice on setting up customs, VAT, and markets in your Shopify webshop, you can contact us at contact@mercive.com or ring the bell at+45 61 60 29 83.
