The trade order form lets you set your preference for the currency in which your profit, loss, and trade/opening fees are determined if the order is filled. But it won't necessarily give you your choice (for example, if you set it to a currency in which you have zero balance). Also, fee currency selection does not apply to rollover fees. Coinbase Review – Things to Know Before Trading with Coinbase How Does Coinbase Work? Coinbase offers an intuitive platform where users can deposit fiat money and buy cryptocurrencies. You can also trade one coin for another one, like deposit Bitcoin and buy ETH or LTC. Coinbase is available in 32 countries, including the US, Canada, Australia, Singapore, the UK, and most of the EU countries.