How to internationalise your online store

Displaying prices in the buyer’s local currency is fundamental for conversion. A user who sees prices in a foreign currency perceives higher risk and uncertainty about the final cost. Ecommerce stores that implement multi-currency see conversion increases of 10–20% in international markets.

Multi-currency management involves important technical decisions: should prices be automatically converted using real-time exchange rates, or should fixed price lists be maintained per market? The first option is easier to maintain but produces "ugly" prices (€47.83). The second allows psychological pricing (€49.99) but requires manual updates.

Content translation is only the first step. For each language version to rank in search engines, you need a solid international SEO strategy: correct URL structure, hreflang tags, adapted content (not literal translations) and per-market keyword research.

The three main URL structure options are: subdomains (de.store.com), subdirectories (store.com/de/) and local domains (store.de). Subdirectories are the most recommended option for most ecommerce sites because they consolidate domain authority and are easier to manage technically.

Preferred payment methods vary enormously between markets. In Germany, bank transfers (SEPA) and Klarna dominate. In the Netherlands, iDEAL processes over 60% of online transactions. In Brazil, Boleto and PIX are essential. Ignoring local methods can cost up to 40% in conversion.

Gateways like Stripe, Adyen and Mollie offer native support for local payment methods across multiple markets from a single integration. Assess which markets are priorities and activate the relevant methods for each one.

International shipping adds complexity in delivery times, costs, customs and returns. The customer experience suffers when a package takes 15 days or arrives with unexpected customs charges.

For priority markets, consider storing stock locally (through a local 3PL or programmes like Amazon FBA). For secondary markets, services like DHL ecommerce, FedEx International or Global-e enable cross-border shipping with duties and taxes calculated at checkout (DDP — Delivered Duty Paid), avoiding surprises for the buyer.

Cross-border sales within the EU carry significant tax implications. Since July 2021, the OSS (One-Stop Shop) scheme simplifies intra-EU VAT management: you can declare and pay VAT for all EU countries through a single filing point in your country of establishment.

Outside the EU, complexity increases: tariffs, import taxes, country-specific product regulations and fiscal registration obligations in some markets. Platforms like Avalara, TaxJar or Vertex automate international tax calculations and facilitate compliance.

Localisation goes beyond translation. It means adapting date formats, address formats, phone formats, measurement units, sizing (especially in fashion) and cultural references. It also includes adapting marketing imagery, the models in photos and the communication tone.

Details make the difference: an address form asking for "ZIP code" in a European market causes confusion. US sizing in a European store drives returns. Email campaigns with incorrect local holidays show market ignorance. Every market deserves an experience that feels local.