For tax purposes you will need to be UK based in order to get the most out of Clear Books invoicing software. It is certainly not of use to the US market, but for European companies which also trade from UK websites, Clear Books is worth investigating. It includes all VAT features necessary for UK transactions in multiple currencies at a very competitive price. It’s also easy to import data from an existing accounting software provider. Use the free 30 day trial to see whether your European business can benefit from Clear Book’s many features.