When you register to sell in the US on Amazon.com, you will need to provide a valid credit card, phone number, and tax information. Furthermore, for taxes, you will be required to complete a detailed online questionnaire that will determine whether you will need to complete a W-9 form (as a US taxpayer) or a W-8BEN (as a non-US taxpayer). When you register to sell in Canada or Mexico, on Amazon.ca or Amazon.mx, you will need to provide a valid credit card, phone number, and tax information.
North America Unified Account. In North America, we have simplified the process of managing your business across the marketplaces of the US, Canada, and Mexico. The North America Unified Account lets you create and manage product listings in the US, Canada, and Mexico. You control what you sell and where you sell using a single selling partner account.
When you sign up to sell on Amazon.com, Amazon.ca, or Amazon.com.mx, your selling partner account is automatically enabled to sell in both marketplaces. You can switch between marketplaces using the Marketplace Switcher in Seller Central. This allows you to list products and manage orders in each marketplace.
As a Pro Seller, you will only pay subscription fees corresponding to the marketplace where you first registered to sell. For example, if you signed up to sell on Amazon.com, you pay the subscription fees for that marketplace. If you decide to sell on Amazon.ca, you will not pay additional subscription fees. However, for all per-item sales, you will pay the fees applicable to the marketplace in which the item was sold.
In order to sell across the US, Canada, and Mexico, you will need to create listings on Amazon.com, Amazon.ca., and Amazon.com.mx. Please note that creating listings in the first marketplace in which you register (e.g. Amazon.com) and beginning to sell does not automatically populate listings in the other marketplaces (e.g. Amazon.ca and Amazon.co.mx). If you want to sell in all three marketplaces, you will need to create listings in each marketplace.
Finally, when setting up a North American Unified Account, you’ll need to provide a bank account in one of the countries supported by Amazon. Currently, Amazon supports US, Canadian, and Mexican bank accounts, as well as bank accounts in Eurozone countries.