Do I need to produce an invoice?

Not at all! 

Whether you're a registered business, self-employed or an individual, we handle the paperwork for you wherever you are in the world so that it includes the right information and tax, if applicable. 

You will receive this document once the order is complete and you have been paid. Your buyer will also receive the same document. You can find it on the order page or https://comeup.com/en/sales/invoices