Accounting / invoicing articles

We're looking for an Accountant who is experienced in invoicing in different countries to help us put together information about invoicing in CA, AU, NZ, UK and EU in general. Your task will be to find and gather accurate information about given topic and write them down in an appropriate way. Topics will cover all important information about invoicing rules in countries mentioned above. Here is an example for a topic: When does my online store in UK charge VAT? - my business is not VAT registered - my business is VAT registered -- selling to UK customer -- selling to EU customer -- selling outside EU We need to write a short article 250-300 words about each topic. These articles should contain accurate information, but remain easy to understand for store owners with no or little accounting background.