Do these in order. Each one is cheap to get wrong early and expensive to get wrong late.
1. Landed cost and delivery time
The decisive factor, and the one most brands address last. Work out what it actually costs to get one unit to a customer's door in that country, and how long it takes.
If shipping is a large fraction of the order value, or delivery is measured in weeks, no amount of translation fixes it. Options are negotiating carrier rates, a consolidator, or eventually local fulfillment.
2. Duties and the surprise bill at the door
The single most damaging international experience is a customs charge the customer did not expect. It produces refused deliveries, chargebacks and reviews, and it is entirely preventable.
The choice is whether duties are collected at checkout or on delivery. Collecting at checkout makes your prices look higher and your delivery experience clean. Leaving it to the carrier makes checkout cheaper and the doorstep worse. For consumer brands the first is almost always right.
3. Tax registration and collection
Selling into a country can create an obligation to register and collect there, based on where the customer is rather than where you are. Thresholds vary and crossing one is something you must act on rather than be notified about. Configuration problems and the collect-where-you-should question are covered in Shopify tax calculating wrong, and this is a question for a qualified adviser before it is a Shopify setting.
4. Currency and pricing
Showing prices in local currency is table stakes. Deciding what those prices are is the real work. Automatic conversion at spot rates produces prices like 47.83, and it hands your margin to exchange-rate movement. Setting deliberate local prices with sensible rounding usually converts better and protects margin.
5. Payment methods
Card penetration varies enormously. In several European markets bank transfer and local wallets outweigh cards, and offering only cards silently loses a large share of buyers. Check what the country actually uses before assuming — payment gateway experts if the answer is unfamiliar.
6. Compliance beyond tax
Consumer law, returns rights, data protection and accessibility obligations follow where you sell. The EU set is covered in GDPR and cookie compliance and accessibility and ADA compliance — both worth scoping together rather than separately.
7. Language and content
Last, deliberately. Translation matters, and it matters after the four things above are right. When you do it, machine translation handles specifications and misses everything that persuades — see content localization and translation experts.
One detail worth knowing: sizing conventions, materials terminology and claim rules differ by market, so a translated product description can be accurate and still wrong. The research discipline behind good descriptions is in product descriptions that sell.